146 results about "Thermal isolation" patented technology

The invention discloses a radio frequency on-chip test system and a radio frequency on-chip test method. The radio frequency on-chip test system comprises a probe temperature adjusting module, an instantaneous pulse acquisition module, a dynamic compensation module, a thermal isolation module, radio frequency measurement equipment and a bearing platform. Wherein the probe temperature adjusting module is used for independently adjusting the temperature of a probe to a target value; the instantaneous pulse acquisition module is used for transmitting a radio frequency pulse signal and acquiring a radio frequency parameter when the probe is in contact with the normal temperature calibration sheet; the dynamic compensation module dynamically corrects the radio frequency parameters based on the real-time temperature of the probe; the thermal isolation module is used for reducing heat exchange between the probe and the external environment; the radio frequency measuring equipment is used for collecting and analyzing the radio frequency parameters; the bearing platform is used for bearing the normal temperature calibration sheet or the device to be tested. Through the synergistic effect of multiple modules, the problem of test errors caused by temperature fluctuation is effectively solved, and the precision and stability of radio frequency on-chip test are remarkably improved.

A dual ring resonator including a base substrate, and a silicon oxide layer positioned on the base substrate having a first waveguide, a primary ring resonator optically coupled to the first waveguide, a second waveguide, and a secondary ring resonator optically coupled to the primary ring resonator and the second waveguide. The dual ring resonator further includes at least one heater disposed partially on the primary ring resonator, and a trench within at least the silicon oxide layer and surrounding at least a portion of the first waveguide and the second waveguide.

The invention provides a gradient self-repairing sealing coating and a preparation method thereof, and relates to a high-temperature protection material. The gradient self-repairing sealing coating comprises a bonding layer, a gradient middle layer, a transition layer and an abradable surface layer which are sequentially arranged from a base body to the surface. A bonding layer in the gradient self-repairing sealing coating contains silicate, so that the bonding strength and the heat-resistant stability of a matrix are improved; rare earth silicate and Ir elements are introduced into the gradient intermediate layer, so that high-temperature corrosion resistance is enhanced, and thermal stress is relieved; the transition layer contains zirconium oxide and graphene and has the functions of thermal isolation and stress regulation; the abradable surface layer is formed by combining rare earth silicate and graphite, low friction and preferential abrasion are achieved, and effective sacrifice protection is provided. The overall structure can have multiple properties of heat, corrosion resistance and abrasion resistance, and is suitable for the surface protection requirement under the complex hot end working condition.

The invention relates to the technical field of server cooling, in particular to a server pneumatic vacuum circulation cooling device and a working method.The cold air injection conduction unit is provided with a cold air pipeline, a compressed air source is arranged at the head end of the cold air pipeline, and the tail end of the cold air pipeline is connected with a plurality of cold air injection heads which are located in a flow guide cover at the tail end of the cold air pipeline; the heating elements face the corresponding heating elements; compressed air within a set temperature range is transmitted into the cold air injection head through the cold air pipeline and used for injecting air for heat dissipation to the surface of the heating element, and the heating element is located in the secondary side space; the head end of the hot air pipeline faces the primary side space, the tail end of the hot air pipeline is connected with a hot air absorption head, and the hot air absorption head faces the heating element; and the hot gas absorbing head absorbs mixed gas overflowing from the hot gas radiating port by utilizing vacuum and discharges the mixed gas into the primary side space. The low-pressure state after heat dissipation is adapted through vacuum, and the requirements of the secondary side of the server for pressure balance, heat isolation and airflow directionality are met at the same time.

A device includes a substrate, a dielectric layer on the substrate, a waveguide within the dielectric layer, and a photodetector optically coupled to the waveguide. The photodetector is disposed above the waveguide layer and is monolithically integrated with the substrate. The photodetector is configured to operate at low temperatures, such as below about 50 K or about 20 K. In some embodiments, the monolithic photonic device includes thermal isolation structures and optical isolation structures. Techniques for manufacturing the monolithic photonic device, including the thermal isolation structures and optical isolation structures, are also described.

The invention belongs to the technical field of batteries, and discloses a battery cover plate and a battery, the battery cover plate comprises a conductive pole, a first insulating part and a high-temperature-resistant patch, the conductive pole comprises a pole main body and a pole bottom plate, the first insulating part is provided with a plugging through hole and a containing groove, and the high-temperature-resistant patch is arranged in the plugging through hole; the containing groove comprises a first wall surface opposite to the pole bottom plate in the first direction, the high-temperature-resistant patch comprises a patch body, the patch body is arranged on the surface, opposite to the first wall surface, of the pole bottom plate, and the distance L1 between the patch body and the first wall surface in the first direction is larger than 0 mm and smaller than or equal to 0.1 mm. The high-temperature-resistant patch is coated on the pole bottom plate, so that the first thermal isolation is realized, the distance L1 between the patch main body and the first wall surface is limited, the air thermal insulation layer is formed between the patch main body and the first wall surface to realize the second thermal isolation, and the thermal influence on the first insulating part during welding is greatly reduced by utilizing the dual thermal isolation.

The application provides a MEMS differential thermal analysis sensor and a DTA / DSC testing method, the sensor comprising a detection thermocouple, a reference thermocouple, an ambient resistance and a shielding ring, wherein the detection thermocouple and the reference thermocouple each comprise a single crystal silicon substrate, a heat insulation cavity, a plurality of single crystal silicon thermocouple pairs and a supporting film, the heat insulation cavity is located in the single crystal silicon substrate, the plurality of single crystal silicon thermocouple pairs are connected in series and are supported by the supporting film to be suspended above the heat insulation cavity to achieve thermal isolation, and the single crystal silicon thermocouple pair comprises an N-type single crystal silicon thermocouple and a P-type single crystal silicon thermocouple connected in series, the temperature and power sensitivity of the sensor are significantly improved, reach 28 mV / K and 100 V / W, and the noise equivalent temperature difference and the noise equivalent power reach 0.5 mK or 0.2 muW. Based on the output signal of the sensor, differential thermal analysis testing and differential scanning calorimetry testing on physical or chemical processes of material heat absorption and release can be realized, the sample consumption is small, and the testing precision is high.

The invention discloses a bridge type structure micro-bolometer based on a Mn-Co-Ni-O thin film and a preparation method of the bridge type structure micro-bolometer. According to the method, a Mn-Co-Ni-O post-high-temperature annealing process is considered, annealing is carried out on the suspension structure where the sacrificial layer is released, an organic sacrificial layer material release process is compatible, and the problem that cracks are generated in Mn-Co-Ni-O manufacturing due to tension and compression stress of materials of all layers of a substrate at a high temperature is minimized through annealing of the suspension structure; a bridge type structure based on Mn-Co-Ni-O is provided, and the limitation that traditional Mn-Co-Ni-O can only adopt an organic sacrificial layer and back digging to carry out thermal isolation design is eliminated; the F-P resonant cavity resonance absorption structure based on Mn-Co-Ni-O is successfully manufactured, traditional self-absorption based on a Mn-Co-Ni-O thick film is replaced, and the heat capacity of a device is reduced while absorption is enhanced by adopting a thin film optical structure; the applicable scene of the invention can be expanded to all cantilever or film-suspending micro-nano devices, such as inertial sensors, pressure sensors, chemical / biological sensors and optical detectors of other principles.

The invention belongs to the technical field of batteries, and discloses a battery cover plate and a battery, the battery cover plate comprises a first insulating part, a conductive pole and a high temperature resistant patch, the conductive pole comprises a pole main body and a pole bottom plate, one side of the pole bottom plate deviating from the first insulating part is welded with a tab, one part of the tab is welded on the pole bottom plate, and the other part of the tab is welded on the high temperature resistant patch. The other part of the tab extends in the first direction and exceeds the pole bottom plate, and the high-temperature-resistant patch is attached to the side, facing the first insulating part, of the tab and located on the part, exceeding the pole bottom plate, of the tab. The heat of the tabs is blocked through the high-temperature-resistant patches, so that first thermal isolation is realized, the tabs cannot be tightly attached to the first insulating parts through the high-temperature-resistant patches, and gaps are formed between the tabs and the first insulating parts, so that an air thermal insulation layer is formed, and second thermal isolation is realized; the heat influence on the first insulating part during welding is greatly reduced by using a dual thermal isolation mode, and the insulating property and the assembly manufacturability are improved.

The invention discloses a multi-point composite cooling system for a high-torque-density permanent magnet synchronous motor, and relates to the technical field of motor cooling, on the basis of a spiral water channel of a casing, an annular water channel is additionally arranged on an end cover, radiating ribs are arranged on the inner wall of the end cover, and a water cooling plate is additionally arranged at the end part of a stator core. The water cooling plate and the shell spiral water channel share a cooling loop, and the end covers on the two sides adopt independent water channel design, so that the effect of a main cooling system is prevented from being influenced by flow resistance of the end covers. A casing spiral water channel serves as a main heat sink, and heat of a stator iron core and a winding linear part is absorbed through cooling liquid circulation; the end water cooling plate directly cools a magnetic field concentration area at the end of the stator, and the temperature rise at the end of the winding and the end of the stator is specifically inhibited; the independent water channel of the end cover realizes regional thermal isolation, thermal coupling with cooling liquid of the casing is avoided, a bearing / sealing component is cooled preferentially, and part of rotor heat is taken away through shafting conduction; and with the assistance of the surface area strengthening effect of the radiating ribs of the end cover, all-directional thermal management of key components of the motor is formed.

The present disclosure is directed toward a temperature detector probe that includes a housing, a pair of electrical connectors, a support cap, and a sensor. The housing defines a bore longitudinally extending through the housing, and the pair of electrical connectors extend through the bore. The support cap is disposed at a first end portion of the housing. The sensor is provided on the support cap and is electrically coupled to the pair of electrical connectors. The support cap is positioned between the pair of electrical connectors and the support cap.

This utility model discloses a high-temperature resistant cooling circulation structure for a fluoroplastic magnetic pump, specifically relating to the field of magnetic pumps. It includes a base, pump body, pump cover, connecting frame, isolation sleeve, inner magnetic rotor, outer magnetic rotor, motor, and impeller. The isolation sleeve, inner magnetic rotor, and outer magnetic rotor are all housed inside the connecting frame. The high-temperature resistant cooling circulation structure of this fluoroplastic magnetic pump features a spiral cooling channel inside the isolation sleeve. The coolant flows directly through the core area of ​​the heat source, rapidly absorbing heat transferred by magnetic eddy currents and high-temperature media through forced convection, thus improving cooling efficiency and effectively blocking heat transfer to the outer magnetic rotor, preventing permanent magnets from demagnetizing and failing due to high temperatures. Copper-nickel alloy heat-conducting fins are welded to the inner wall of the isolation sleeve, combined with a layer of thermally conductive silicone grease, accelerating the conduction of heat from the inner magnetic rotor to the cooling channel. A vacuum cavity is provided between the spiral cooling channel and the outer wall of the isolation sleeve to suppress heat conduction to the outer magnetic rotor, achieving double thermal isolation.

A nanoscale temperature detector comprising a diamond sensing probe (1) having a lateral dimension of at least 200 nanometers and having a sensing tip (2) with a radius of curvature (R) of less than 100 nanometers, less than 10 nanometers or less than 1 nanometer and a plurality of color centers (5) showing temperature sensitive features in the emission count rate. The diamond sensing probe (1) has a lateral dimension of at least 200 nanometers and is connected to a detector system (13) by a mounting structure (6). A thermal isolation barrier (3) thermally separates the sensing probe (1) from the detector system (13).

The invention provides a phase change display array control structure based on thermal isolation. The phase change display array control structure comprises a phase change display pixel unit, an electric insulation heat conduction layer, a pixelated heating electrode, a thermal through hole structure, a thermal isolation dielectric layer and an addressing cross electrode layer. Non-conduction type thermal excitation is achieved through the electric insulation heat conduction layer, transverse diffusion of heat is limited through the thermal isolation dielectric layer, and thermal crosstalk is reduced. The pixelated heating electrode is combined with the thermal through hole structure and the addressing cross electrode layer to form a longitudinally-conducted addressing control path, and the pixel-level thermal response control precision is optimized; the electric insulation heat conduction layer is made of a high-heat-conductivity material so as to accelerate the crystallization process of the phase change material; and the thermal isolation dielectric layer is made of a low-thermal-conductivity insulating material and is used for improving the pixel resolution capability. The liquid crystal display device is compact in structure, efficient in performance and suitable for being applied to high-resolution, low-power-consumption and fast-response phase change display devices.

The invention provides a three-dimensional vertical structure phase change memory and a preparation method thereof. The preparation method comprises the following steps: forming a word line structure in a stacking structure on a substrate; symmetrical sunken structures are formed in the electrode layer of the word line structure; forming a gate layer in the recessed structure; filling an insulating medium, and forming a through hole structure in the insulating medium at two sides of the word line structure; sequentially forming an insertion layer and a phase change layer on the outer side of the gating layer; and forming a top electrode layer in the through hole structure. Aiming at the bottleneck of a laminated hole etching process, through hole processing is carried out on an insulating medium, so that the etching difficulty is reduced; the insulating medium forms a thermal isolation groove at the periphery of the storage unit to block a thermal diffusion path, so that the thermal crosstalk of adjacent units is reduced, and the data storage reliability is improved; the storage density is doubled by optimizing the position of the bit line circuit and the efficient arrangement of the multiple layers of storage units. According to the method, an efficient solution is provided for high-density nonvolatile storage requirements in the fields of artificial intelligence, cloud computing and the like.

The invention provides a two-stage correction device which can be applied to the technical field of mask deformation correction. The device comprises a first movable assembly and a second movable assembly, wherein one end of the first movable assembly can move in a first direction; the second movable assembly comprises a thermal isolation layer and an amplification assembly, the amplification assembly is arranged on the first movable assembly through the thermal isolation layer, the clamping assembly comprises an elastic compensation ring and a clamping part, the clamping part is connected with the second movable assembly through the elastic compensation ring, and the clamping part is used for clamping a mask; the second movable assembly can adjust the clamping part to move in the first direction through the amplification assembly.

Silicon photonic (SiPh) integrated circuit (PIC) comprising an optical waveguide heater element is thermally isolated by one or more voids within a dielectric material that is over the heater element. A void over a heater element may be formed by patterning a sacrificial material feature that is then embedded within the dielectric material. The sacrificial material is removed through an opening in the dielectric material and the opening is then occluded to define a void that may be retained as a permanent feature having a low thermal conductivity. The void over the heater element may, along with one of more voids adjacent to the heater element and / or below an optical waveguide, may enhance thermal isolation of a heater element, enhancing its power efficiency.

The application relates to a dual-phase high-entropy ceramic material for high-temperature thermal barrier coatings and a preparation method thereof, in particular to a dual-phase high-entropy ceramic (La 0.2 Nd 0.2 Gd 0.2 Y 0.2 Ho 0.2 )2Zr2O7 with low thermal conductivity and high thermal expansion coefficient, which is mainly used for thermal isolation, thermal barrier coatings and other applications in high-temperature environments. The application is prepared by adopting a solid-phase reaction sintering process through accurate design of the combination of rare earth elements, forms a stable dual-phase structure, effectively inhibits grain growth through grain boundary pinning, and thus maintains a nanoscale grain structure. Meanwhile, the material can efficiently block heat transfer at high temperatures through optimization of phase proportion, and the thermal expansion characteristics are matched with a metal base layer, effectively avoiding the falling risk caused by the difference in thermal expansion of the two, and thus greatly improving the service life and reliability of the material in a high-temperature environment. The high-entropy ceramic material of the application can be widely applied to fields with high demand for high-temperature thermal isolation in aerospace, aviation, automobile industry and the like, is especially suitable for thermal barrier coatings, high-temperature thermal insulation materials and other high-temperature thermal insulation applications, and has important engineering application value.

The utility model discloses coated heating glass and relates to the technical field of glass. The coated heating glass comprises a mounting frame assembly, a sealing assembly is assembled in the mounting frame assembly, a tempered glass layer is connected to one side of the sealing assembly, and a metal coating layer is assembled on the side, away from the sealing assembly, of the tempered glass layer. An adhesive layer is mounted on the side, away from the tempered glass layer, of the metal coating layer, and a thermal isolation layer is connected to the side, away from the metal coating layer, of the adhesive layer; the number of the sealing assemblies is two, the opposite faces of the two sealing assemblies are attached to the tempered glass layer, and the top end, the bottom end and the two ends of the side face of the tempered glass layer abut against the inner wall of the mounting frame assembly. According to the utility model, the service life of the coated glass is effectively prolonged through the toughened glass layer when the coated heating glass is applied to a front windshield in the field of automobiles, and the two groups of metal coating layers are adopted, so that the metal coating layers can quickly defrost and demist the front and back surfaces of the coated glass main body.

A battery module and related methods are disclosed. In one example, the battery module includes a thermal isolation structure with a structural support plate and an aerogel layer. An example of the thermal isolation structure is shown including a module cover contact located on the top edge of the structural support plate.

To provide a functional fabric having both a quick warming effect and a heat-retaining effect. A functional fabric comprising a base fabric layer, a multilayer metal layer, and a thermal isolation layer, wherein the base fabric layer has a first surface and a second surface opposite to the first surface, the multilayer metal layer is formed on the first surface of the base fabric layer, the multilayer metal layer comprises a high thermal conductivity metal layer and a low thermal conductivity metal layer, the thermal conductivity coefficient of the high thermal conductivity metal layer is at least five times the thermal conductivity coefficient of the low thermal conductivity metal layer, and the thermal isolation layer is formed on the multilayer metal layer.

A system and method of using a multi-zone substrate to perform electromigration testing of integrated circuits in the high-frequency RF domain. Here, the device under test (DUT) is affixed to a single, multi-zone substrate with a high-temperature zone, a transitional thermal isolation zone, to a low-temperature zone. The high-temperature zone has a DUT interface with a localized heater arrangement. The low-temperature zone provides the interface with RF lines or high speed digital lines to the RF test instrumentation. The DUT input and output pins are attached to the high-temperature zone, and the configuration allows both direct current (DC) and RF stressing of the DUT. The high-temperature zone can raise the DUT temperature to 300-450° C. The RF test port and associated test equipment remain at room temperature.

The invention discloses a shoebox lamp, and relates to the technical field of lighting lamps, the shoebox lamp comprises a shell, a lamp panel and a power supply; the shell is provided with a power source bin and a lamp box which are arranged at intervals, the power source bin and the lamp box are connected through a connecting part, the connecting part is provided with a heat isolation groove, and cooling fins are arranged on the outer wall of the lamp box. The lamp panel is mounted in the lamp box; the power supply is mounted in the power cabin; according to the technical scheme provided by the invention, the shell, the lamp panel and the power supply are arranged in the shoe box lamp; the shell is provided with a power source bin and a lamp box which are arranged at intervals, the power source bin and the lamp box are connected through a connecting part, the connecting part is provided with a heat isolation groove, and cooling fins are arranged on the outer wall of the lamp box. According to the shoebox lamp, the lamp panel and the power source can diffuse heat through the shell, the situation that the performance is influenced by too high temperature is avoided, heat generated by the power source and the lamp panel can be isolated through the heat isolation groove, the situation that heat transfer between the lamp panel and the power source influences each other is avoided, the shoebox lamp is prevented from being too high in temperature during working, and the service life of the shoebox lamp is prolonged.

A wafer test cassette having a fluid inlet and a fluid outlet, includes a first housing, a second housing, a heat source, and an isolation device. The first housing includes a probe card including probes. The second housing is coupled to the first housing, so that a test space is defined. The second housing carries a wafer arranged in the test space, and the probes are electrical contact with an upper surface of the wafer. The heat source heats a lower surface of the wafer, and a high temperature region is defined between the lower surface and the second housing. The solation device surrounds the high temperature region for thermally isolating the high temperature region from the test space. The fluid inlet receives a gas, the gas flows between the probe card and the upper surface of the wafer, and exits through the fluid outlet.

The invention relates to the field of solid carbon dioxide preparation and forming processing, and discloses a device for efficiently preparing high-density dry ice.The device comprises a base, a device body is arranged at the top of the base, a feeding assembly is arranged in the device body, and a temperature control assembly is arranged in the device body; a blanking assembly is arranged outside the device body, the blanking assembly is combined with the pressing assembly to make the granular dry ice into dry ice blocks, an air injection assembly is arranged at the top of the base and used for cleaning the interior of the pressing assembly, and a radiator is arranged at the top of the device body. And through the arrangement of a heat blocking composite cylinder body structure with a heat exchange runner, thermal isolation of a low-temperature snow making environment in the pressing cavity and a wall surface micro-temperature regulation and control environment is achieved. According to the structural design, input of heat is concentrated on an inner wall contact interface, invalid heat transfer loss is reduced, and the low-temperature stability of the overall structure of the device body is maintained while the gas film generation efficiency is guaranteed.

A nanoscale temperature detector including a diamond sensing probe with a transverse dimension of at least 200 nanometres and a sensing tip-having a curvature radius of less than 100 nanometres, less than 10 nanometres or less than 1 nanometre, and a plurality of colour centres, whose emission count rate show temperature-sensitive features. The diamond sensing probe has a transverse dimension of at least 200 nanometres and is connected to a to a detector system by means of a mounting structure. A thermal isolation barrier thermally decouples the sensing probe from the detector system.

The invention relates to a wired inclinometer high-temperature-resistant fireproof protection integrated device, and the device comprises an inclinometer which is disposed in the device and is used for monitoring the inclination angle of a structure in real time; the inclinometer is connected with an external analysis control platform through a lead; the heat insulation plate covers the inclinometer and forms a heat buffer area; the outer framework serves as an overall supporting frame and is used for supporting and protecting the whole device; the outer partition plate is fixed on the outer framework to form a six-surface closed protective structure; and the mounting plate is welded on the outer framework and is used for fixing the device. Compared with the prior art, the invention has the advantages of strong high-temperature adaptability and excellent thermal isolation performance; the structure integration degree is high, and installation and deployment are flexible; the method has the advantages of adjustable performance design capability, high adaptability and the like.

The utility model relates to a cooling device of a test board and the test board, the test board is provided with a test area and a controller installation area, the cooling device comprises an insulation heat conduction silica gel pad, a heat dissipation metal layer, a first cooling pipeline, a second cooling pipeline and a cooling pump, the insulation heat conduction silica gel pad is arranged on a controller, and the heat dissipation metal layer is arranged on the first cooling pipeline. The heat dissipation metal layer is arranged on the insulating heat conduction silica gel pad, one end of the first cooling pipeline is arranged on the heat dissipation metal layer, the other end of the first cooling pipeline is connected with the cooling pump, the first cooling pipeline is used for providing cooling liquid for the heat dissipation metal layer under the action of the cooling pump, and one end of the second cooling pipeline is arranged on the heat dissipation metal layer. And the other end of the second cooling pipeline is connected with the cooling pump, and the second cooling pipeline is used for recycling the cooling liquid from the heat dissipation metal layer to the cooling pump. According to the invention, on the premise of maintaining a high-temperature test environment of the tested module, efficient thermal isolation and heat dissipation control can be independently carried out on the controller area, and the temperature of the controller is ensured to be always in a safe range.

This invention discloses a coil support device for a stellarator magnet and a stellarator magnet. The coil support device includes a first sliding component and a second sliding component. When applied to a stellarator magnet, the sliding end of the first sliding component can slide relative to the fixed end in a first direction within a first displacement threshold range, and the sliding end of the second sliding component can slide relative to the fixed end in a second direction within a second displacement threshold range. This provides the coil with multiple degrees of freedom in various directions, facilitating assembly and absorbing the multi-directional deformation generated during stellarator magnet operation, avoiding unidirectional stress concentration and thus reducing the risk of stress concentration in the stellarator as a whole. Furthermore, the coil support device is equipped with a heat insulation component, which blocks the longitudinal heat transfer path from the high-temperature environment to the support structure. Therefore, the coil support device provided by this invention can both compensate for magnet displacement and provide thermal isolation through the heat insulation component.

A magnetic coupling assembly includes a thermal isolation system that isolates the assembly from a heat source such as a pump coupled to a driven side of the assembly, thereby enabling the assembly to operate at a reduced temperature. The system may include a labyrinth seal that reduces convective heat transfer to the assembly. The seal may include a sealing gap defined between a rotating component and a stationary component. The gap is sized to limit gas conductance therethrough. The system may also include one or more spacers positioned to reduce or eliminate conductive heat transfer from one component to another. The assembly may be utilized in a pump for contactless coupling of a motor shaft to a pump shaft.