409results about "Lighting heating/cooling arrangements" patented technology

The utility model relates to a kind of car light and electric vehicle, car light includes pedestal, light-emitting part and protective shell, light-emitting part is set between pedestal and protective shell, and gap between pedestal and protective shell is provided with first sealing ring;Light-emitting part includes light-emitting piece and mounting piece, light-emitting piece is clamped and installed on pedestal by mounting piece, and a plurality of heat dissipation parts are provided on mounting piece.By setting light-emitting part between pedestal and protective shell, light-emitting part can be effectively protected, and first sealing ring is provided in the gap between pedestal and protective shell, to avoid short circuit damage caused by light-emitting part wading in rainy day, improve safety, and dustproof.

The utility model discloses a novel aluminum alloy lampshade structure, including aluminum alloy lampshade body, the center of aluminum alloy lampshade body top is provided with the opening portion, the inside installation of opening portion has the sling mechanism, and the sling mechanism includes the sling connection group, the framework and two framework limit pins, and four connecting rods of framework are connected with four corner of opening portion respectively, and the hole portion of two opposite corners of opening portion is seted up, and two connecting rods of framework are connected with the hole portion pin through the framework limit pin. The utility model discloses the inside installation of opening portion has the sling mechanism, and the sling mechanism includes the sling connection group, the framework and two framework limit pins, and four connecting rods of framework are connected with four corner of opening portion respectively, and the hole portion of two opposite corners of opening portion is seted up, and two connecting rods of framework are connected with the hole portion pin through the framework limit pin, can be connected with sling lamp, has good versatility, improves the use range.

The application discloses an integrated double-color-temperature lamp box light source, and belongs to the technical field of illumination light sources.The integrated double-color-temperature lamp box light source comprises a shell and a control module, the shell is a hollow cylindrical structure, an installation cavity is arranged in the shell, and the inner wall of the shell is provided with annularly arranged heat dissipation fins; the annularly arranged heat dissipation fins and heat dissipation through holes form a high-efficiency heat dissipation channel, the heat dissipation channel is matched with a heat-conducting pad to quickly conduct the heat of a substrate, and the working stability and service life of LED lamp beads are significantly improved; warm-color-temperature and cold-color-temperature LED lamp beads are alternately and uniformly arranged in an annular manner, light mixing is more uniform and soft, there are no obvious color-temperature partition and dark area, and the color rendering effect is better; the color temperature and brightness can be flexibly adjusted by cooperating a light-adjusting knob with a wiring rear seat, different illumination scene requirements can be adapted, the sealing property of a wiring position is improved by a waterproof sealing pad, the overall structure is compact, installation and positioning are accurate, integrated design is realized, the assembly efficiency is high, and the integrated double-color-temperature lamp box light source has the advantages of excellent heat dissipation, accurate control, safety in use, wide applicability and the like.

To obtain a lighting fixture that can suppress the effects of heat generation from a simulated load and prevent deterioration. [Solution] The device comprises a light-emitting element placed on a circuit board that emits light when power is supplied to it, a storage battery that supplies power to the light-emitting element when power is not supplied from an external source, an inspection load placed on a separate circuit board from the circuit board that is powered by the storage battery in place of the light-emitting element when the storage battery is being inspected, and a heat dissipation unit that dissipates the heat generated when the light-emitting element or the inspection load consumes power.

This utility model relates to a quick-release, high-heat-dissipation LED lamp housing. It includes: a plastic lamp holder housing, a heat-dissipating metal base, an LED bead holder, and a plastic light-transmitting lamp cover. The heat-dissipating metal base consists of an annular base and heat-dissipating fins on the upper surface of the annular base. The plastic lamp holder housing covers the upper side of the heat-dissipating metal base and has fin through holes. The bottom of the plastic lamp holder housing has a skirt that fits against the annular base. A surrounding ring extends from the periphery of the skirt, completely enclosing the annular base. The plastic light-transmitting lamp cover is fixedly connected to the inner side of the surrounding ring, tightly pressing the heat-dissipating metal base and the LED bead holder together. This utility model uses a combination of plastic and metal, which can significantly reduce production costs. Simultaneously, by providing fin through holes, the heat-dissipating fins extend from inside the plastic lamp holder housing, ensuring effective heat dissipation, and it also features simple assembly.

The utility model relates to the technical field of down lamp structure, especially in a kind of down lamp with inductor, including face ring, it is annular structure setting, and any end surface is provided with inductor;The other end surface of the face ring is provided with fastener;Lamp body, setting in the center of the face ring, and the end surface on the lamp body with the end surface on the face ring where the inductor is located in the same direction is outward divergent light ray;The lamp body and the face ring are fixed at multiple angles, make the irradiation direction of the lamp body and the inductive direction of the face ring coincide setting, or make the irradiation direction of the lamp body and the inductive direction of the face ring acute angle setting.The utility model solves the problem that the existing switch is used to control multiple down lamps in series, it is difficult to realize the individual control of single down lamp;At the same time, due to the inherent structure of down lamp, the demand of specific irradiation direction of user cannot be met, leading to the problem that the application of down lamp in home design is more limited.

The application discloses an energy-saving lighting device convenient to disassemble and clean, and relates to the technical field of lighting equipment.The energy-saving lighting device comprises a lamp shell, lamp fixture mounting plates are hingedly arranged on the two sides of the lamp shell, illuminating lamps are fixedly arranged in the lamp fixture mounting plates, lifting sleeve rods are arranged at the two ends of the bottom of the lamp shell, mounting bottom rods are inserted into the bottom of the lifting sleeve rods, the mounting bottom rods are arranged on a table top, threaded holes are formed in the mounting bottom rods, inner sleeves are arranged in the lifting sleeve rods, the inner sleeves are in communication with the lamp shell, and heat dissipation holes are formed in the lower half of the outer side of the mounting bottom rods.The desktop reading lamp adopts integrated design of lifting, illumination angle control and heat dissipation, the number of components is reduced, the table top space is saved, and the equipment on the table top is more simple and compact.The compact structure reduces the weight of the horizontal lamp fixture part, the weight is more concentrated on the mounting bottom rod, the stability is higher, the mute effect is better during heat dissipation, and the device is suitable for reading environment.

The present application belongs to the floor lamp technical field, the backlight formula floor lamp of the present application, through the collaborative design of structure modularization and airflow guide, realizes the detachable structure under the premise of ensuring the high-power lighting heat dissipation performance, significantly reduces the packaging, transportation and installation cost: the heat dissipation frame is through the split type layout cooperation of main heat sink and annular heat sink, with radial heat dissipation fin and heat dissipation channel, combined with the first air inlet air duct, the second air inlet air duct formed between the inverted conical cover cavity of the suspension bottom cover and the air guide, constructs the convection heat dissipation path of the bottom double side air inlet, guided by the heat dissipation fin and discharged from the air outlet, while guaranteeing the heat dissipation demand of high-power light source, the heat dissipation frame, annular bottom cover, suspension bottom cover and lamp stand are all assembled by detachable clamping or connecting structure, so that the product can be disassembled into multiple modular components for flat packaging, greatly reducing the packaging volume, reducing the transportation occupied space and logistics cost, and the user can complete the assembly by simply clamping.

The utility model discloses an atmosphere lamp control equipment for e-sports stadium stage, include: control platform and heat abstract mechanism, heat abstract mechanism includes heat dissipation support, heat pipe, be used to place the placement arc plate of heat pipe and be used for the positioning clamping piece of heat pipe clamping, heat dissipation support installs inside control platform, heat pipe is fixed through placement arc plate in heat dissipation support bottom, and through positioning clamping piece, heat pipe is clamped and fixed in heat dissipation support bottom, the utility model discloses a heat abstract mechanism is set up, not only can in the air of outside through the air collector box and blow to heat pipe in, and export control platform from the other end, the component and element in control platform inside cooperate and install with heat dissipation support, and the heat generated is transferred to heat dissipation support and heat pipe, and the heat on heat dissipation support and heat pipe is exported through the wind of outside, to realize efficient heat dissipation to control platform to the different size heat pipe is clamped and fixed according to the heat dissipation demand to satisfy the heat dissipation demand of control platform.

To provide a vehicular lighting tool capable of mounting, on the same substrate, light sources of a plurality of optical systems (rear lens parts and light sources) arranged behind a front lens body extending in a predetermined direction along the predetermined direction.SOLUTION: A vehicular lighting tool 30 includes a front lens body FL extending in a predetermined direction, and a plurality of optical systems 20A-20E arranged behind the front lens body along the predetermined direction, the plurality of optical systems each including a rear lens part BL (BL1-BL5), and a light source A (A1-A5), the rear lens part being a lens part for focusing light from the light source permeating the rear lens part mainly in a first direction, the front lens body being a lens part for focusing light from the rear lens part permeating the front lens body mainly in a second direction intersecting with the first direction, and the light sources of the plurality of optical systems mounted on a same substrate 40.SELECTED DRAWING: Figure 3

The utility model relates to candle lamp technical field, specifically disclose a candle lamp controller with safety protection structure, including the shell, the shell is cylindrical barrel -shaped structure, the outer surface of one end of shell away from the soft light cover snap -on installation has the bottom shell, the inside snap -on installation of shell has control mainboard. This candle lamp controller with safety protection structure, when candle lamp after a period of use control mainboard and LED lamp circuit board will produce heat, at this time heat will be conducted to the heat dissipation silica gel pad and the heat conduction silica gel pad, at this time through thermistor can monitor the operating temperature of candle lamp, make temperature exceed the limit value of thermistor after, LED lamp circuit board can automatically power off to reduce the temperature rise, reduce the melting or combustion fire of shell, soft light cover and other components due to long -term use, greatly promote the safety of candle lamp use time and promote the life of use.

The utility model discloses a reinforced backlight board, the utility model discloses through adopting composite material to replace traditional metal material and ordinary plastic material, make the backlight frame have buffering, rigid and wear resistance simultaneously, and the weight also reduces obviously compared with metal material, and the grid -like reinforcing rib of backlight frame back can promote the structural strength of backlight frame, and the frame fender can be good to protect the optical plate group and light guide plate and other components installed on the backlight frame, and the notch of frame fender and the guide inclined surface help the installation of light guide plate and other components, and the fin can solve the heat dissipation problem of backlight board, and the graphite alkene heat conduction net embedded in the fin can promote the heat dissipation efficiency, and the guide inclined surface is provided with the heat dissipation groove, and the heat dissipation groove helps the heat dissipation of backlight frame, and in addition, the backlight frame still is equipped with the clamping hook, and the clamping hook is used for clamping external object.

This utility model discloses a water-cooled in-ground light with a water collection system, relating to the field of in-ground lights. It includes a lampshade and a light-emitting body installed inside it. Two sets of symmetrically distributed heat sinks are provided on the outer bottom of the lampshade, and a protective cover is provided at the bottom of the lampshade. The protective cover has a flanged structure extending upwards to the outer side of the lampshade. During normal use, the heat sinks dissipate heat from the lampshade and the light-emitting body inside, allowing heat to dissipate through the gap between the protective cover and the lampshade. In extremely hot weather, the cooling water inside the first and second water-cooling jackets can directly cool the outside of the lampshade, rapidly reducing its temperature. The cooling water inside the drainage pipe can also cool the outside of the two sets of heat sinks, accelerating heat dissipation from the outside of the lampshade and improving cooling efficiency.

This utility model relates to an LED lighting assembly, comprising: a heat sink; a sealing gasket placed on the mounting surface of the heat sink; an LED module fixed on the mounting surface of the heat sink and located within the sealing gasket; a lens module placed on the sealing gasket; and a pressure frame with multiple buckles along its outer contour. The buckles engage with the heat sink, pressing the lens module and the sealing gasket onto the mounting surface of the heat sink. The sealing gasket has an upper surface and a lower surface, with the upper surface contacting the lens module and the lower surface contacting the mounting surface of the heat sink. This design, through the engagement of the buckles with the heat sink, ensures uniform pressure on the lens module and the sealing gasket by the pressure frame, guaranteeing consistent deformation of the sealing gasket and preventing dust and other impurities from easily entering the LED lighting assembly. The increased sealing contact area of ​​the sealing gasket further improves the sealing effect of the LED lighting assembly.

This utility model discloses a low-temperature resistant and interference-resistant vehicle lamp, including a supporting shell. An isolation cover is fixedly installed on the side of the supporting shell, and a mounting frame is fixedly connected to the outer side of the supporting shell. A fixing screw is inserted into the side of the mounting frame, and an inner isolation plate is fixedly snapped onto the inner side of the supporting shell. Advanced UV electroplating technology concentrates the light pattern, greatly improving luminous efficiency. This not only reduces glare affecting other road users but also increases the illumination distance, allowing drivers to see the road ahead more clearly at night or in adverse weather conditions, effectively ensuring driving safety. The cover is made of UV-resistant material, increasing wear resistance and effectively preventing scratches. During long-term use, even under various harsh environments and external friction, it maintains good appearance and light transmission, extending the lamp's lifespan and reducing the frequency and cost of lamp replacement.

The application provides a plastic product finished product flaw detection device, and particularly relates to the technical field of plastic product detection, and comprises a main machine table, an X-axis linear module is provided with a bearing plate for placing the plastic product to be detected, an AOI camera is installed on an L-shaped cantilever, an adaptive light supplementing mechanism is arranged below the AOI camera, and a positive switching mechanism is arranged below the adaptive light supplementing mechanism. The plastic product finished product flaw detection device is provided with the adaptive light supplementing mechanism and the positive switching mechanism below the AOI camera, the light supplementing angle of the adaptive light supplementing mechanism is adjusted, and the diffusion plate station of the positive switching mechanism is switched, so that the light supplementing angle is fixed in the prior art, different plastic product detection requirements cannot be adapted, the problems of reflection, shadow and insufficient imaging contrast are prone to occurring during detection, the adaptive matching of the detection light field and the characteristics of the plastic product to be detected is realized, and the universality and core detection accuracy of the device for different types of plastic product flaw detection are improved.

The utility model discloses a kind of LED projection lamp with strong corrosion resistance suitable for offshore environment, including lampshade, the inside of lampshade is fixedly installed with six LED lamps, the front of lampshade is installed with sealing plate, the front of sealing plate is provided with six installation grooves, the inside of sealing plate is provided with six light transmission grooves, the inside of six installation grooves is installed with sealing frame, the side of sealing frame is installed with light transmission cover, the back of lampshade is fixedly installed with junction box, the outside of lampshade is installed with adjusting support component;Sealing plate, sealing frame and light transmission cover can be set to seal the front end of lampshade, the erosive substance of outside cannot enter the inside of lampshade, thereby effectively protect LED lamp from the erosion of seawater, salt fog, humid air etc., ensure the normal use of device, also greatly prolong the service life of device, prevent the LED lamp inside lampshade from being eroded by outside, ensure the normal use of device, also prolong the service life of device.

The utility model discloses a kind of heat pipe control inclined sky light, it is related to sky light technical field, including shell, face frame, mist blue diffusion plate, light source and radiator, the shell bottom is equipped with window, the radiator is embedded in window and outer surface is flush with shell outer contour, constitute the part of complete outer surface of shell;The shell has oblique outer convex side wall part, and the side wall part forms non-perpendicular angle with mist blue diffusion plate;The heat pipe control inclined sky light further includes warning component, it is located in the inside of the oblique outer convex side wall part, and includes: warning light source passage, the color change card movably arranged in warning light source passage, the drive part of driving color change card movement.This heat pipe control inclined sky light can improve heat dissipation efficiency, realize high temperature automatic warning and reduce the advantages of security risk.

A suction device comprising a suction tube configured to fluidly couple to a vacuum source and to provide suction at its distal end, an illumination assembly comprising at least one direct light sourc

The utility model relates to a ceiling lamp technical field discloses a ceiling lamp modularization structure convenient to maintain, including roof, lamp board and frosted lamp shade, the top of roof is provided with the intercepting mechanism, the inner wall top of roof is provided with a plurality of fixed establishments, the bottom fixed connection of lamp board has a plurality of LED lamps, the top of lamp board is provided with the limiting assembly, the top of frosted lamp shade is provided with the clamping assembly, the intercepting mechanism includes a plurality of L shape communication pipes, a plurality of L shape communication pipe's outer wall respectively fixed connection in the top of roof all around, the top of L shape communication pipe is communicated with the hollow block. In the utility model, through L shape communication pipe as the ventilation passage, the outside airflow is intercepted after the inclined partitioning board above hollow block and enters L shape communication pipe and ceiling lamp, blows to the four around under the arc guide plate shunt to radiate, avoids the outside insects to enter ceiling lamp, improves ventilation and radiating efficiency.

The utility model discloses a kind of unitization module automobile rear tail light, including lamp holder shell;Through screw fixed in the decorative shell of lamp holder shell, decorative shell has L type lamp cavity and two strip-shaped lamp cavities located in L type lamp cavity upside;Wherein, strip-shaped lamp cavity is provided with two concave lamp bowl parts, and the installation lamp hole of concave lamp bowl part upside is respectively provided with, installation lamp hole is provided with light source assembly outside, and light source assembly has the lamp pearl of inlaying into installation lamp hole, and outside is provided with radiator;L type lamp cavity is installed lamp strip, and outside cover is provided with light guide cover, and light guide cover is provided with vertically arranged reflector, reflector width gradient changes, and have multiple reflective steps.The unitization module automobile rear tail light of the utility model has the advantages of simple structure, easy to assemble and maintain, good light indicating effect, excellent heat dissipation performance and the like, and is suitable for popularization and application on various vehicles.

To provide a phosphor wheel in which imbalance in mass distribution is reduced.SOLUTION: A phosphor wheel 10 includes a disc-shaped substrate 20 having a first main surface 21, a second main surface 22 opposite to the first main surface 21, and an opening 23, and a phosphor layer that is provided on the first main surface 21 in a curved shape along the circumferential direction of the substrate 20, and is positioned in parallel to the opening 23 in the circumferential direction in a planar view. On the second main surface 22, a heat dissipation fin 25 and a protrusion 26 in a different form from the heat dissipation fin 25 are integrally formed with the substrate 20.SELECTED DRAWING: Figure 5

This invention discloses a multifunctional fish-attracting lamp, which includes a bracket and a power supply box. The fish-attracting lamp also includes: a heat sink fixed to the end of the bracket, with a rear shell fixed to the front end of the heat sink; a cooling fan fixed in the center of the rear shell; a temperature controller fixed in one side of the heat sink fins; and a fan intelligent monitoring system embedded in one side of the rear shell. Several cooling fins are stacked from the outside to the inside at the rear end of the heat sink, and are evenly distributed circumferentially at the rear end of the heat sink. The gap between two adjacent cooling fins forms a through groove that is connected longitudinally and laterally. When the fan intelligent monitoring system detects abnormal operation of the cooling fan, it can automatically cut off the power supply to the lamp. When the temperature controller detects that the temperature of the heat sink exceeds 80°C, it can automatically cut off the power supply to the lamp. The through groove not only allows the air blown by the cooling fan to diffuse to various positions behind the heat sink, but also effectively guides water and air entering the lamp.

This utility model relates to the field of LED spotlight technology, and more particularly to an internally focused LED spotlight, comprising a lamp holder, a terminal block installed at the upper center of the lamp holder, several heat dissipation fins fixedly covering the upper end of the lamp holder, several LED beads fixedly distributed on the side of the lamp holder away from the terminal block, a housing installed on the side of the lamp holder near the LED beads, a light-transmitting glass plate embedded and fixedly embedded at the end of the housing, and a limiting rod fixedly installed on one side of the lamp holder, with a limiting sleeve slidingly fitted onto the surface of the limiting rod. In this design, when the lens frame moves horizontally along the convex lens, the limiting sleeve slides stably on the limiting rod, avoiding the complexity and instability of traditional external focusing structures. This internal focusing method not only simplifies the operation process but also improves focusing accuracy, allowing the light to be focused more accurately, meeting the lighting needs of different scenarios, while avoiding dust contamination or mechanical wear problems that may arise from external focusing mechanisms.

This utility model relates to the field of aviation obstruction light technology and provides a clamp-type aviation obstruction light, comprising: a support plate, a base fixedly connected to the middle of the upper end of the support plate, and a transparent protective cover disposed on the base; an installation assembly disposed between the base and the transparent protective cover; and a cleaning assembly disposed on the support plate; the cleaning assembly includes a motor fixedly connected to one side of the upper end of the support plate, and a first gear plate fixedly connected to the output end of the motor. The cleaning assembly facilitates cleaning of the transparent protective cover. When the motor is started, it drives the first gear plate to rotate. The first gear plate meshes with a circular gear ring, and the rotation of the circular gear ring drives a cleaning sponge brush to clean the exterior of the transparent protective cover, preventing rainwater stains from affecting the use of the aviation obstruction light. Heat dissipation holes facilitate heat dissipation of the aviation obstruction light, and a filler is provided to absorb moisture, preventing moisture from entering the interior.

The utility model relates to the technical field of isolation type LED, and disclose a quick detachable isolation type LED light source heat radiation structure, this quick detachable isolation type LED light source heat radiation structure, including mounting bracket, the LED lamp is set up in mounting bracket inner wall bottom, the glass cover is set up on mounting bracket upper surface, the heat dissipation subassembly is set up in mounting bracket bottom, in order to make the heat of equipment can be quickly radiated, the fan rotation of even speed is let to small motor start, and then let the cold air of outside pass through the filter hole set up in the bottom of cover plate inner wall and filter into the inside of air inlet hole, its cold air is blown to LED lamp after passing through air inlet hole, thereby lets the heat of LED lamp radiated and exports from air outlet, like this can make the heat of equipment can be faster radiated, after making the cover plate fixed in the bottom of mounting bracket after embedding piece is clamped into embedding groove inside, the elastic force of small spring promotes the movement of movable block, thereby making the clamping piece clamped into the inside of card slot, like this let the cover plate can be more stably and be limited.

The utility model provides a kind of LED emergency T bubble lamp, it includes: lamp shade, lamp cup, LED light source device, it further includes: battery pack component, isolator cover, wherein the LED light source device cover is connected at lamp cup opening, to define closed cavity in lamp cup, connecting component is equipped in the closed cavity, the isolator cover is housed in closed cavity, with connecting component mating, to isolate isolating cavity in closed cavity, fixed piece is equipped in the isolating cavity, the battery pack component is housed in isolating cavity and with fixed piece mating, to keep interval with isolator cover inner wall, the lamp shade is connected with lamp cup, cover is connected in the light direction of LED light source device. Whereby for the battery pack component in T bubble provides suitable working temperature environment, whereby ensure the life and endurance of battery, to improve the life and reliability of product as a whole.

The application discloses a reflective wavelength conversion device and a preparation method thereof. The reflective wavelength conversion device comprises a fluorescent layer and a heat-conducting reflective layer arranged below the fluorescent layer. The fluorescent layer is obtained by sintering fluorescent powder, glass powder and scattering particles. The fluorescent layer comprises n layers of fluorescent powder layers. The first fluorescent powder layer is close to the heat-conducting reflective layer, and the outermost layer, the nth fluorescent powder layer, is away from the heat-conducting reflective layer. 2<=n<=5. The content of fluorescent powder in the first fluorescent powder layer to the nth fluorescent powder layer increases layer by layer, and the content of scattering particles decreases layer by layer. The heat-conducting reflective layer comprises a porous alumina layer, an alumina-aluminum nitride transition layer and an aluminum nitride layer which are stacked in sequence. The porous alumina layer is arranged close to the fluorescent layer. The wavelength conversion device has high wavelength conversion efficiency, high limit blue light power resistance, good heat dissipation effect and good reliability.

The utility model relates to related technical field of circuit board discloses a kind of Ferris wheel type multicolor lamp circuit board heat dissipation structure, including circuit board main body, the outside of circuit board main body is uniformly connected with a plurality of heat conduction mechanism, the inside rotation of circuit board main body is connected with central shaft, the outside of circuit board main body is fixedly connected with protection mechanism, the bottom of central shaft is fixedly connected with base, the heat conduction mechanism includes circuit board branch, the top of circuit board branch is fixedly connected with heat spreader, the top of circuit board main body is fixedly connected with radiating layer, the outside of heat spreader is uniformly fixedly connected with heat conduction plate, in the utility model, part of heat is taken away by heat conduction plate and heat spreader in circuit board branch top, cooperate vent, so that the heat generated by lamp ball can be radiated in transmission process, reduce the heat backlog of central shaft, to make the heat dissipation of circuit board heat dissipation structure more efficient.

Headlight assembly for vehicles, in particular motor vehicles, with the following features: - a headlight housing (1) comprising a rear housing wall (1a), a top housing cover (1b), a bottom housing base (1c), and side housing walls (1d, 1e) offset from one another; - with a front-facing disc (11) transparent to light rays; - the headlight housing (1) closed by the disc (11) comprises an interior housing space (7); - a reflector assembly (13) with at least one light source (29) in the form of an LED (29') is provided in the interior housing space (7); - with a cooling device for dissipating the heat generated in the headlight housing (1) during operation of the at least one light source (29); - the cooling device comprises a heat sink (111) defined by the disc (11).- the reflector arrangement (13) comprises a reflector housing (15) with a reflector housing rear wall (15a) and a reflector housing top (15b), whereby a reflector housing opening or an open reflector housing area is formed in the reflector housing (15) opposite the reflector housing rear wall (15a), - the reflector housing (15) is positioned and installed in the headlight housing (1) such that the reflector housing opening or the reflector housing area points towards the lens (11) of the headlight housing (1) and is adjacent to it, - the reflector housing (15) has at least one reflector housing chamber (23) in the interior (21) of the reflector housing, the inner wall surfaces of which are at least partially covered with a reflective material layer or have a reflective material layer,- wherein in the at least one reflector housing chamber (23) the at least one light source (29) is mounted on the reflector housing (15) and / or a circuit board on which the at least one light source (29) is mounted on the reflector housing (15),- the reflector housing (15) is installed in the headlight housing (1) such that the reflector housing (15) is spaced apart from the headlight housing (1) and is held and mounted relative to the headlight housing (1) by means of a holding and supporting device,- the reflector housing (15) or at least the reflector housing rear wall (15a) is made of a material having a thermal conductivity of at least 10 W / mK, and- the reflector housing rear wall (15a) is arranged at a distance opposite the disc (11) such thatthat during the operation of the at least one light source (29) and the resulting heating of the reflector housing rear wall (15a), a heat source is formed by the heated reflector housing rear wall (15a) and a heat sink (111) is formed by the disc (11), and the reflector housing rear wall (15a) and the disc (11) are arranged and / or equipped such that the heat source (211) and the heat sink (111) thereby formed generate an air circulation (43) in the reflector interior (21), in which the air heated by the at least one light source (29) rises within the at least one reflector housing chamber (23) adjacent to the reflector housing rear wall (15a), is cooled towards the disc (11) and thereby sinks, in order to then flow back towards the reflector housing rear wall (15a) and there be heated by the heat generated by the at least one light source (29). to rise again.