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1363 results about "Thermal contact" patented technology

In heat transfer and thermodynamics, a thermodynamic system is said to be in thermal contact with another system if it can exchange energy through the process of heat. Perfect thermal isolation is an idealization as real systems are always in thermal contact with their environment to some extent.

Foot massage device

A foot massage device includes a housing, a foot receiving pocket coupled to the housing, a massage assembly disposed in the housing, and a thermal application assembly which is assembled to the foot receiving pocket, wherein the thermal application assembly has a top thermal contact surface which is exposed in the foot receiving pocket, wherein the thermal application assembly has a cooling mode for allowing the top thermal contact surface to provide a cooling treatment to the foot of the user.
Owner:NINGBO HAODA HAISHENG TECHNOLOGY CO LTD +1

Thin film wireless label with integrated temperature sensor

An ultra-thin film wireless label can include a temperature sensor. The wireless label can be attached to an object, and the wireless label can be used as a temperature monitoring device. The wireless label can have a stacked structure laying the temperature sensor to have efficient thermal contact with the object, while being relatively insulated from the environment via an insulating layer. The temperature sensor can be calibrated, and the calibration parameters can be stored and later used to generate accurate temperature readings.
Owner:REELABLES INC

Transferring viscous materials

A method and device are described to transfer a viscous functional material onto a receiving substrate. A plate is provided having a cavity surface that includes a cavity. A plurality of individually addressable resistive heater elements are provided that are in thermal contact with respective zones of the cavity. Viscous functional material is provided in the cavity with a material composition that, when sufficiently heated, generates a gas at an interface between the cavity surface in the cavity and the functional material, to transfer the functional material from the cavity by the gas generation onto the receiving substrate. Respective portions of the viscous functional material in respective zones of the cavity are heated by supplying respective ones of the plurality of individually addressable heater elements with an electric power having a respective time dependent magnitude.
Owner:NEDERLANDSE ORG VOOR TOEGEPAST NATUURWETENSCHAPPELIJK ONDERZOEK TNO

Robot

The embodiment of the invention provides a robot which comprises a trunk, the trunk comprises a trunk shell, the trunk shell forms a first containing cavity and is provided with a first opening, and the first opening communicates with the first containing cavity; the motor is arranged in the first accommodating cavity; the leg structure is arranged outside the first accommodating cavity and is in transmission connection with the output end of the motor, and the leg structure is configured to move under the driving of the motor; at least part of the heat dissipation piece is arranged outside the first containing cavity and penetrates through the first opening to be in thermal contact with the motor.
Owner:VITA POWER (BEIJING) TECHNOLOGY CO LTD

Expandable Thermal Contact Pad

PendingUS20250332025A1Therapeutic coolingTherapeutic heatingFluid compartmentsMedicine
Disclosed herein is a medical pad for exchanging thermal energy between a targeted temperature management (TTM) fluid and a patient. The medical pad includes a fluid compartment configured for circulation of a TTM fluid therein. The pad is configured for expansion by providing compressed air to one or more air compartments of the pad, where the expansion defines an increased patient contact area of the pad. An air control module provides air pressure to one or more pads of a TTM system, and the air control module may be incorporated into a TTM system module. The pad further includes a hydrogel layer disposed across an under side of the pad.
Owner:CR BARD INC

Photoelectric co-packaging temperature control framework based on embedded glass-based micro-channel

The invention belongs to the field of photoelectric co-packaging, and particularly relates to a photoelectric co-packaging temperature control framework based on an embedded glass-based micro-channel. Independent lower-layer heat dissipation is carried out on a heat-sensitive component optical interconnection chip through an embedded glass-based micro-channel technology, an electric interconnection heat dissipation channel continues to use existing upper-layer heat dissipation, mutual isolation of two heat dissipation channels in the whole common packaging body is achieved, heat dissipation partition is achieved from a new dimension, and thermal crosstalk is avoided; the whole common packaging body dissipates heat at the upper layer and the lower layer, so that the effective heat dissipation area is greatly increased, and the heat dissipation capability of the packaging body is greatly improved; and the guidance quality of the heat dissipation channel is better through material selection and additional arrangement of the heat insulation layer. And a metal film temperature sensor can be additionally arranged, so that the temperature of a component can be monitored in real time, heat management regulation and control can be performed in a targeted manner, the temperature rise of a heating device and the heat contact efficiency between the micro-channels are balanced, and more efficient heat dissipation is realized.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Stator structure with heat dissipation module having smooth arc curved surface and condition bridge in gap in heat dissipation module

A stator structure of a magnetic levitation flux-switching motor includes a stator of a modular structure and a motor housing. A modular stator includes front and rear side winding end heat dissipation modules, modular stator left and right wings, a modular stator permanent magnet, front side magnetic conduction column left and right wings, an inter-front side and inter-rear side magnetic conduction column permanent magnets, insulating layers, a stator winding, and rear side magnetic conduction column right and left wings. The front side and rear side winding end heat dissipation modules are of hollow structures, and are symmetrically provided with a cooling medium inlet and a cooling medium outlet, a cooling medium channel is disposed inside a hollow cavity, one side of the heat dissipation module is a smooth curved surface, and good thermal contact can be achieved between the heat dissipation module and the stator winding and the insulating layer.
Owner:SOUTHEAST UNIV

Portable container

A portable container includes a cooling unit with a vessel and a base. A thermal cover can cover the vessel to insulate a chamber in the vessel that holds one or more goods. The vessel has a cavity filled with a phase change material or thermal mass, and thermally conductive plate(s) extending within the cavity and in thermal contact with the phase change material or thermal mass. The base is attached to the vessel and houses thermoelectric module(s) in thermal contact with the thermally conductive plate(s), a heat sink in thermal contact with the thermoelectric module(s), a fan operable to flow the air past the heat sink, and circuitry that operates the thermoelectric module(s) and fan. The thermoelectric modules are operable to charge the phase change material or thermal mass, the charged phase change material or thermal mass (once charged) configured to passively cool or heat the chamber.
Owner:EMBER LIFESCIENCES INC

Metallic thermal interface materials and associated devices, systems, and methods

A heat-transfer component defines a thermal-interface surface and has a composite thermal-interface material bonded to the thermal-interface surface. The composite thermal-interface material comprises a particulate filler material dispersed within a metallic carrier material having a solid-to-liquid phase-change temperature between about 60° C. and about 90° C. With a thermal-interface material bonded to the thermal-interface surface, the thermal-contact resistance between the thermal-interface material and the heat-transfer component can be reduced or substantially eliminated compared to conventional thermal-interface materials, including conventional metallic thermal-interface materials. The particulate filler material can have a higher bulk thermal conductivity than that of the metallic carrier material and can be wetted by the metallic carrier material, providing a bulk thermal conductivity of the composite thermal-interface material that is higher than that of the carrier material without the particulate filler material. Also disclosed are electrical devices having a heat generating component cooled by such a heat-transfer component.
Owner:DEEIA INC

Expandable radiation radiator and system based on fluid loop

The invention relates to the technical field of radiation radiators, in particular to an expandable radiation radiator and system based on a fluid loop, and the radiator comprises a working medium accommodating part which is provided with two end parts, and a fluid working medium can flow from one end part of the working medium accommodating part to the other end part of the working medium accommodating part; the positioning structure is arranged on the working medium accommodating piece; the fixing frame is connected with the positioning structure; the heat dissipation structure is fixed by the fixed frame and is connected with the positioning structure; when the fluid working medium of the working medium containing part flows, heat can be transferred to the heat dissipation structure through the positioning structure. The flexible heat dissipation structure is clamped through the elastic design of the rigid positioning structure, good thermal resistance is provided, the flexible heat dissipation structure is supported through the fixing frame, the phenomenon that a radiation film of the heat dissipation structure is broken due to vibration is prevented, and stable and efficient operation of the radiation radiator is maintained.
Owner:NANJING UNIV OF SCI & TECH

Storage module and server

The invention discloses a storage module and a server, and relates to the technical field of storage modules, the storage module comprises a liquid cooling plate, a back plate, a storage unit and a connector; a first through hole is formed in the liquid cooling plate; the back plate is arranged on one side of the liquid cooling plate in the first direction; the storage unit is arranged on the other side of the liquid cooling plate along the first direction; one end of the connector is connected with the backboard, and the other end of the connector penetrates through the first through hole and is inserted into the storage unit; and the heat conduction element is arranged on the other side of the liquid cooling plate along the first direction, is in heat exchange contact with the heating surface of the storage unit and is in heat exchange contact with the liquid cooling plate. The technical problem that the heat exchange area between the hard disk of the storage module and the liquid cooling plate is limited is solved, and the technical effects of increasing the heat exchange area and improving the heat exchange effect are achieved.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

Electric tool

The invention discloses an electric tool which comprises a working assembly used for executing work of the electric tool; the driving assembly comprises a motor and is used for driving the working assembly; the power supply assembly is used for providing power for the driving assembly; the control assembly is at least used for controlling operation of the motor; the control assembly comprises a first circuit board and at least one heat dissipation element. The first circuit board comprises at least one power element; the heat dissipation element includes: a main body portion in thermal contact with the surface of the power element; the first connecting part is connected with the main body part, and the first connecting part is electrically connected to the first circuit board. By the adoption of the technical scheme, the electric tool with the good heat dissipation performance can be provided.
Owner:NANJING CHERVON IND

Transformer oil tank

The invention discloses a transformer oil tank, and relates to the technical field of power transformers, the transformer oil tank comprises an oil tank body and a plurality of groups of fin mechanisms, and each group of fin mechanism comprises radiating fins with cavities formed inside. The cooling fins with the cavities are arranged on the outer side of the oil tank body, the slidable adjusting plate and the driving assembly are matched, the effective oil storage volume of the cooling fins can be flexibly adjusted according to the environment temperature, the maximum cooling area is guaranteed in the non-low-temperature environment so that efficient cooling can be achieved, the cooling contact area is reduced in the low-temperature environment, and the service life of the oil tank is prolonged. Wax precipitation and viscosity increase caused by excessive cooling of the cooling oil are avoided, so that the insulating property and the circulating fluidity of the cooling oil are maintained, the circulating stirring mechanism can promote efficient circulation of the cooling oil between the oil tank and the fins under driving of the driving mechanism, and the heat dissipation efficiency is further improved; the problems of heat dissipation and insulation performance of the oil-immersed transformer in a low-temperature environment are effectively solved, and the operation reliability and environmental adaptability of equipment are improved.
Owner:HEBEI WANBO ELECTRICAL APPLIANCES CO LTD

Inverter, Power Device, and Photovoltaic System

An inverter includes a housing and a heat dissipation apparatus. The housing may include a first cavity and a second cavity, and a power semiconductor device is disposed in the first cavity. The second cavity has a first air inlet and a first air outlet, and a magnetic component is disposed in the second cavity. The heat dissipation apparatus includes a radiator and a first fan. The radiator includes an evaporator and a condenser that are connected to each other. The evaporator is disposed in the second cavity. The power semiconductor device is in thermally conductive contact with the evaporator, to dissipate heat for the power semiconductor device. The first fan is disposed in the second cavity, an air inlet side of the first fan faces the first air inlet, and an air outlet side of the first fan faces the first air outlet.
Owner:HUAWEI DIGITAL POWER TECH CO LTD

Device for measuring thermal resistance of semiconductor device

The invention provides semiconductor device thermal resistance measuring equipment, which is applied to the technical field of electrical variable measurement and comprises a case, a workbench fixed at the top of the case, a constant-temperature base arranged in the middle of the workbench, a rack arranged on one side of the workbench and erected above the constant-temperature base, a thermal resistance detector matched with the rack, and a temperature sensor arranged on the thermal resistance detector. The top of the rack is provided with a pressing mechanism which can press and abut against the semiconductor device to be tested towards the upper end face of the constant-temperature base. The middle part of the upper end surface of the constant-temperature base is provided with a flexible heat-conducting contact pad used for self-adapting to the shape of a semiconductor device to be tested, and the flexible heat-conducting contact pad is internally provided with a temperature control assembly; and an environment simulation mechanism is matched on the pressing mechanism. The thermal resistance testing device has a high-adaptability and high-precision thermal resistance testing structure, can adapt to semiconductor devices in various shapes for testing, can simulate the actual application environment of the semiconductor devices, can provide reliable data support for thermal management design of the semiconductor devices, and is good in overall use effect.
Owner:合肥智测电子技术股份有限公司

Contact pin and socket for inspection

Provided are a contact pin and a socket for inspection that can improve contact reliability to an IC package. An embodiment includes: an electrically conductive electrical contact extending from a base end to a tip and having an elastic deformation part elastically expandable and compressible in the extending direction formed between the base end and the tip; and an electrically conductive thermal contact extending from a base end to a tip and having an elastic deformation part elastically expandable and compressible in the extending direction formed between the base end and the tip, and the electrical contact and the thermal contact are laterally stacked adjacent to each other and are movable independently of each other.
Owner:YAMAICHI ELECTRONICS CO LTD

Method for simulating performance of LNG ambient air vaporizer under frosting condition

PendingUS20250232100A1Geometric CADNon-pressured vesselsFrostConjugated heat transfer
The present disclosure discloses a method for simulating performance and optimizing design of an LNG ambient air vaporizer under a frosting condition, performing site operation test on the LNG ambient air vaporizer to obtain fitting relationship between the outer wall temperature of frosted finned tube and frost layer; transforming a sum of increased frost layer thermal resistance and thermal resistance into equivalent thermal contact resistance, and representing the equivalent thermal contact resistance as a function of the outer wall temperature; establishing a calculation model of the LNG ambient air vaporizer, performing simulation calculation by equivalent heat conduction coefficient, so as to obtain fluid-solid conjugate heat transfer characteristics and vaporization performance of the LNG ambient air vaporizer under the frosting condition for optimization design of the LNG ambient air vaporizer.
Owner:NORTH CHINA MUNICIPAL ENG DESIGN & RES INST

Heat-spreading element and method for manufacturing the same

The present invention relates to a heat-spreading element (1) for transferring heat from a heat source, such as a heat generating electronic component (110). The heat-spreading element (1) comprises a first face (10), configured to be in thermal contact with a heat source (100) and a second face (20), configured to be in thermal contact with a heat sink (200). A graphite body (30) is arranged between the first face (10) and the second face (20). The graphite body (30) comprises a graphite plane (32) that has an in-plane thermal conductivity that is higher than a cross- plane thermal conductivity of this plane, wherein the graphite plane is inclined, at least in some areas of the graphite body (30), relative to the first face (10).
Owner:TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) +1

Power supply module and heat dissipation system

The invention provides a power supply module and a heat dissipation system. The power supply module comprises a bottom plate, a power unit and a heat dissipation assembly. The power unit is arranged on the bottom plate and comprises an intermediate plate and a power device. The middle plate is provided with a first surface and a second surface which are opposite in the first axial direction. The power device is arranged on the first surface and / or the second surface of the intermediate plate. A heat dissipation plate of the heat dissipation assembly is arranged corresponding to the first surface or the second surface of the middle plate. When the heat dissipation plate is arranged corresponding to the first surface of the middle plate, the heat dissipation plate is in thermal contact with the first surface, and the projection of the heat dissipation plate and the projection of the first surface in the first axial direction are at least partially overlapped. When the heat dissipation plate is arranged corresponding to the second surface of the middle plate, the heat dissipation plate is in thermal contact with the second surface, and the projection of the heat dissipation plate and the projection of the second surface in the first axial direction are at least partially overlapped.
Owner:DELTA ELECTRONICS INC(CN)

Connectors and connector arrangement

The present invention discloses a connector and a connector assembly. The connector comprises: a housing (1); a conductive terminal (2) provided in the housing (1); an electrical power transmission component (3) inserted into the housing (1) and welded to the conductive terminal (2); a fastening assembly (4) for fastening the conductive terminal (2) to a mating terminal of a mating connector; an insulating support (5) installed in the housing (1) for holding the conductive terminal (2); and a temperature measuring device (6) installed on the insulating support (5).The conductive terminal (2) and the electrical power transmission component (3) have welded parts that are welded together, and the temperature measuring device (6) is in thermal contact with the welded part of the conductive terminal (2) and / or the electrical power transmission component (3) to detect the temperature of the welded part. In the present invention, the temperature measuring device is in direct thermal contact with the welded part of the electrical power transmission component and / or the conductive terminal, thus enabling early and accurate detection of the temperature of the connector.
Owner:TYCO ELECTRONICS (SHANGHAI) CO LTD

Phased array radar antenna array plane and air-cooling uniform-temperature heat dissipation structure

The invention discloses a phased array radar antenna array plane and air-cooled uniform-temperature heat dissipation structure, which optimizes the structure and layout of a heat dissipation air duct of the antenna array plane, and overall designs component modules and the heat dissipation air duct to achieve the effect that the temperatures of components at symmetrical positions of four quadrants of the antenna array plane are consistent; an independent fan is designed for each heat dissipation air duct, and the air volume is determined according to the heat power consumption of each air duct; a heat pipe is designed on a heat exchange contact surface at the bottom of the heat dissipation air duct to reduce the temperature difference of the assembly along the air duct direction; the heat dissipation air channel is completely sealed and isolated from each functional module in the antenna array plane; the inner surface of the heat dissipation air channel is coated with the infrared ceramic radiation heat dissipation coating, salt spray corrosion can be resisted, heat dissipation is facilitated, and the outdoor environment requirement can be met. Through the design, the temperature difference of the components on the antenna array plane is reduced, and the phase consistency requirement of the antenna array plane components is met.
Owner:THE 20TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORP

Feeding waste heat platform for secondary aluminum production

The utility model provides a charging waste heat platform for secondary aluminum production, and relates to the field of secondary aluminum production. The charging waste heat platform for secondary aluminum production comprises a platform body and supporting legs installed at the bottom of the platform body, the charging waste heat platform body comprises a fixed platform body, a fixed cover and a fixed shell, a feeding device used for smashing aluminum raw materials is installed on the fixed shell, and a conveying mechanism is installed in the fixed cover and the fixed shell. Feeding holes are formed in an outer cylinder and a fixed shell of the conveying mechanism; according to the feeding waste heat platform for secondary aluminum production, flue gas is wrapped by the fixing cover and can flow in the specific direction, the heat loss amount in the preheating process is reduced, energy is saved, aluminum raw materials are crushed through the two crushing cutters, the contact area of the aluminum raw materials and air is increased, the subsequent preheating effect is improved, and the service life of the aluminum raw materials is prolonged. And the conveying mechanism can intermittently supply materials and is matched with the inner cylinder and the outer cylinder to rotate, so that the aluminum raw materials continuously roll, the retention time and the heated contact area are increased, and the preheating effect is improved.
Owner:SHANDONG INNOVATION METAL TECH +1

Lifting Mechanism for Pluggable Modules

A pluggable module cage assembly includes a heatsink that is fastened, joined, or otherwise securely fixed to the cage or host board, making the heatsink substantially immovable relative to the cage or host board. A portion of the surface of the heatsink is exposed to the interior volume of the cage so that it can physically and thermally contact the pluggable module. The cage assembly includes a lifting mechanism that operates to lift a pluggable module when the module is plugged into the cage. The lifting mechanism lifts the module toward the heatsink to push the module with a controlled force against the exposed portion of the surface of the heatsink to make thermal contact.
Owner:ARISTA NETWORKS INC

Heat Dissipation Assembly, Connector Assembly and Shielding Shell

A heat dissipation assembly includes a liquid-cooling module including a liquid-cooling plate, a bottom surface of the liquid-cooling plate has a locking structure, and an air-cooling module including a plurality of heat dissipation fins. A top surface of each of the plurality of heat dissipation fins is welded to the bottom surface of the liquid-cooling plate. The locking structure engages a locking spring piece on a side wall of a shielding shell of a connector to lock the heat dissipation assembly to the shielding shell. When the heat dissipation assembly is locked onto the shielding shell, a bottom of the air-cooling module protrudes into the shielding shell through an opening in a top wall of the shielding shell to make thermal contact with a mating connector inserted into the shielding shell.
Owner:TYCO ELECTRONICS (SHANGHAI) CO LTD

Two-phase liquid-cooled electrical power apparatus

A two-phased liquid-cooled electrical power apparatus includes a plurality of cooling circuits that recirculate and transition respective engineered fluids between liquid and vapor states around closed-loop fluid paths to cool a plurality of devices. A portion of each fluid path is either integrated with or in thermal contact with its device. The engineered fluids are evaporated within the respective portions of the fluid paths to hold the operating temperatures at or near the respective and different phase transition temperatures. The cooling circuits may be used to maintain different operating temperatures of hollow primary and secondary winding coils in a power transformer, of parallel connect hollow winding excitation coils and a common magnetic core in an electrical reactor, of power semiconductor devices mounted on heat sink(s) in which the fluid paths are embedded or power semiconductor devices in which the respective fluid paths pass through the devices.
Owner:RAYTHEON CO

Drying mechanism for solid-liquid separation of precious metal

The invention provides a drying mechanism for solid-liquid separation of precious metal, and belongs to the technical field of metal processing. Comprising a mounting bracket, a drying charging barrel is fixedly connected to the top of the mounting bracket, a conical hopper is fixedly connected to the bottom of the drying charging barrel, a discharging opening is fixedly connected to the end of the conical hopper, a control case is connected to the end of the drying charging barrel through bolts, and a feeding opening is connected to the top end of the end of the drying charging barrel in an inserted mode; and a spiral heating pipe is connected into the drying charging barrel in a sleeving manner. By arranging the vibration adjusting assembly and the air supply adjusting assembly, metal powder is effectively dispersed, agglomeration is reduced, the contact area with internal hot air is increased, the drying time is shortened, the powder is fully suspended, an agglomeration structure is destroyed through an inclined plate, the thermal contact time is prolonged in cooperation with staggered arrangement of heating pipes, and metal powder accumulation dead corners are eliminated; the temperature and humidity sensor dynamically regulates and controls the drying state, powder quality is ensured, uniform and efficient drying is achieved, and production quality is improved.
Owner:XINGTAI LAUTES NEW MATERIAL TECH CO LTD

Flow detection device

A flow detection device (10) and method for detecting fluid flow in a pipe system, comprising: a heating element (103) for supplying heat into the pipe system, a first temperature sensor (104a) and a second temperature sensor (104b) positioned either side of the heating element (103), and a processor (101), wherein: the heating element (103) and the first and second temperature sensors (104a, 104b) are configured to be mounted to an outer surface of a pipe contained in the pipe system, with the heating element (103), the first temperature sensor (104a) and the second temperature sensor (104b) being in thermal contact with the outer surface of the pipe, and the processor (101) is configured to detect fluid flow within the pipe system by monitoring the temperature difference between the first and second temperature sensors (104a, 104b) over a predetermined period of time.
Owner:ONDO INSURTECH PLC

Watercraft with a cooling system

A watercraft including a hull; a deck; a battery and an electric motor; a cooling system including: a heat exchanger; a closed cooling path in thermal contact with the heat exchanger and the battery; and an open cooling path in thermal contact with a portion of the closed cooling path. Also a cooling system including: a heat exchanger including: a heat exchanger body, a first channel defined in the heat exchanger body, the first channel being in thermal contact with the outer surface for conducting heat therebetween, and a second channel defined in the heat exchanger body, the second channel being in thermal contact with the first channel, a first cooling path in thermal contact with the battery, a portion of the first cooling path being defined by the first channel; and a second cooling path defined by the second channel.
Owner:BRP MARINE US INC

Portable container

A portable container includes a cooling unit with a vessel and a base. A thermal cover can cover the vessel to insulate a chamber in the vessel that holds one or more goods. The vessel has a cavity filled with a phase change material or thermal mass, and thermally conductive plate(s) extending within the cavity and in thermal contact with the phase change material or thermal mass. The base is attached to the vessel and houses thermoelectric module(s) in thermal communication with the thermally conductive plate(s), a heat sink in thermal contact with the thermoelectric module(s), a fan operable to flow the air past the heat sink, and circuitry that operates the thermoelectric module(s) and fan. The thermoelectric modules are operable to charge the phase change material or thermal mass, so the charged phase change material or thermal mass (once charged) passively cools or heats the chamber.
Owner:EMBER LIFESCIENCES INC

Folded to open heat sink for ultra small, recessed ceiling spots

The invention provides a lighting arrangement (1) comprising a light generating device (100), a heat spreader (200), and a ceiling arrangement (301); wherein (I) the light generating device (100) comprises (i) a first device portion (120) comprising a first side (121) of the light generating device (100) and (ii) a second device portion (140) comprising a second side (141) of the light generating device (100); wherein the first device portion (120) comprises a heat dissipating surface (130); wherein the light generating device (100) is configured to emit device light (101) from the second side (141); (II) the heat spreader (200) comprises a thermally conductive material having a thermal conductivity of at least 150 W / m / K in-plane; (III) the ceiling arrangement (301) comprises (a) a ceiling board (310) and (b) a cavity (350), configured at a first ceiling board side (311); wherein the board (310) comprises a through-hole (360); (IV) the light generating device (100) is at least partly configured in the ceiling arrangement (301), wherein the first device portion (120) is at least partly configured in the cavity (350) and wherein the second device portion (140) is at least partly configured in the through-hole (360); wherein the light generating device (100) is configured for illuminating a space (500) arranged at a second ceiling board side (312) with the device light (101); and (V) the heat spreader (200) is configured in the cavity (350); and wherein the heat dissipating surface (130) and the heat spreader (200) are configured in thermal contact with each other.
Owner:SIGNIFY HOLDING BV