128 results about "Conduction cooling" patented technology

The invention discloses a conduction cooling type superconducting isochronous cyclotron, and belongs to the technical field of superconducting isochronous cyclotrons. Comprising an accelerator main support, the accelerator main support is integrally of a base frame structure composed of a plurality of vertical supports, vertically-arranged hydraulic lifting systems are further fixedly installed on the side walls of each set of vertical supports, and a first magnet yoke is fixedly installed at the top of the accelerator main support; a refrigerating machine direct conduction cooling technology is adopted, a traditional liquid helium soaking cooling system is replaced, and the problem that a superconducting cyclotron depends on a complex liquid helium refrigeration unit and is redundant in structure is solved. While the magnetic field intensity is maintained, heavy parts such as a liquid helium pool, a recondenser and a multi-layer heat insulation pipeline are completely abandoned, so that the system height and the sealing complexity are remarkably reduced, and high operation and maintenance cost caused by dependence of liquid helium resources is also avoided.

The invention provides a neodymium iron boron melt-spinning cooling device based on a double-sided forced cooling device and a refining method. The neodymium iron boron melt-spinning cooling device comprises a copper wheel cooling unit, a liquid argon forced cooling unit, a drum-type cooler and a crusher. Carrying out melt-spinning forming on the neodymium-iron-boron melt through a high-speed rotating copper wheel, and realizing primary cooling through a sticking roller surface; a liquid argon nozzle array is arranged above the free surface of the melt-spinning sheet, liquid argon is sprayed at an angle of 30-60 degrees, and secondary forced cooling is formed; and then entering a drum-type cooler for heat conduction cooling, and finally treating by a crusher. According to the device, a double-face cooling system of the roller pasting face and the free face is constructed, the cooling efficiency is effectively improved, the grain size is refined, the heavy rare earth adding amount is reduced, and the device is suitable for preparing the high-performance neodymium-iron-boron magnet.

The invention relates to the technical field of cabinet cooling, and particularly discloses a dual-cooling type communication base station cabinet, which comprises a cabinet body, a circulating cooling unit arranged at the top of the cabinet body and a conduction cooling unit arranged at the side part of the cabinet body, active forced exhaust of the circulating cooling unit and passive heat exchange and phase change heat transfer of the conduction cooling unit are combined, so that the dual cooling effect is improved; when the ventilation net plate is blocked due to moisture, and the exhaust efficiency in the air inlet cover is reduced, the trigger piece automatically starts the driving piece, the driving piece is linked with a rotating shaft of the motor, the vibrating piece is driven to vibrate meshes of the ventilation net plate up and down in a reciprocating mode, hardened blocks are promoted to be broken, and meanwhile the friction piece is driven to conduct transverse reciprocating friction on the ventilation net plate. And the trigger part disconnects the driving part until the discharge efficiency is recovered and the temperature is reduced to a normal range, so that the meshes are effectively prevented from being blocked, smooth air inlet is maintained, and the maintenance requirement is reduced.

The invention discloses a conduction cooling type high-temperature superconducting magnet structure with high energy storage density, and belongs to the technical field of high-temperature superconducting energy storage magnets. A plurality of double-pancake coils, wherein the plurality of double-pancake coils are coaxially nested and stacked on the basic frame; an inter-pancake G10 insulating sheet is arranged in the middle of the double-pancake coil and is used for improving the overall insulating property; the inter-double-cake cold conduction plate is arranged between the two adjacent double-cake coils and is used for enhancing the radial heat conduction capability; the magnetic conducting ring is embedded in a hole position on the inner side of the end part of the basic frame and is used for optimizing the distribution of a magnetic field; and the coil radial pre-tightening structure surrounds the outer side of the double-pancake coil and is used for applying radial pre-tightening force to the double-pancake coil. A conduction cooling scheme is adopted, an efficient heat conduction path is constructed through the well-designed cold conduction center column, the framework structure and the cold conduction plate between the two cakes, uniform cooling of the magnet can be achieved, and the operation cost is effectively reduced.

The utility model provides a cooling structure of a high-temperature superconducting coil assembly and a superconducting magnet. A cooling assembly of the cooling structure is attached to the outer surface of at least one side of the high-temperature superconducting coil assembly. The cooling assembly comprises a cold guide plate component and a plurality of cooling pipes, the surface of one side of the cold guide plate component in the thickness direction is attached to the outer surface of the corresponding side of the high-temperature superconducting coil assembly, and a plurality of mounting grooves extending in the thickness direction are further formed in the surface of the other side of the cold guide plate component. The multiple cooling pipes are arranged in the corresponding installation grooves in a matched mode, and the outer wall of each cooling pipe makes thermal contact with the inner wall of the corresponding installation groove. The cooling pipe is used for forced flow cooling, the cold guide plate component achieves conduction cooling, the heat exchange efficiency of the combination of the cooling pipe and the cold guide plate component is higher than that of a single heat exchange mode, and the mode that the cooling pipe is installed in the installation groove of the cold guide plate component enables the structure of the cooling assembly to be compact, and space is saved.

Example embodiments provide a voice coil speaker that may comprise a speaker frame and a diaphragm connected to the speaker frame and configured to be capable of axial movement. A heat conducting coil former may be connected to the diaphragm. A pole piece and a back plate may form an annular gap and conduct magnetic flux from an axially polarized permanent magnet in a complete loop that includes the annular gap. A voice coil may be wound on the heat conducting coil former and residing in the annular gap, the magnetic flux passing through the voice coil in the radial direction, such that the voice coil produces an axial force to cause the diaphragm to produce sound. A thermal bridge may be configured to conduct heat from the heat conducting coil former to the back plate.

The present application relates to a multi-coil integrated inner frame and a conduction-cooled superconducting magnet assembly, the inner frame has a cylindrical cavity on the inner side, a plurality of flange plates are arranged on the outer side, and a plurality of winding grooves for coil conductors are spaced apart; a coil lead-out groove is arranged on the vertical surface of the flange plate; a mounting groove for a quench trigger heater assembly is arranged on the flange plate; a plurality of mounting support structure fixing through holes are arranged on the flange plates at both ends; a plurality of mounting screw holes are arranged on the flange plate; and a plurality of mounting planes are arranged on the outer surface of the multi-coil integrated inner frame. The conduction-cooled superconducting magnet assembly is formed by winding a wire in each winding groove of the above multi-coil integrated inner frame to form a superconducting coil; a quench trigger heater assembly is tightly mounted on the outer surface of the outer layer insulation of the coil; a structure reinforcing layer is wound in the "U" shaped groove of the quench heater; and a support plate is mounted on the outer surface of the inner frame. The present application has a simple overall structure, is easy to manufacture and assemble, and has high reliability of the finished product.

The invention discloses a non-contact current compensation method for a high-temperature superconducting electric suspension magnet. The non-contact current compensation method specifically comprises the steps that zero-flux suspension coils are installed on a ground track at equal intervals in the train running direction; the low-temperature system is composed of an outer Dewar, a radiation screen and a refrigerating machine. The vehicle-mounted superconducting magnet is directly conducted and cooled through a refrigerating machine, and the vehicle-mounted power generation coil and the vehicle-mounted excitation coil are installed on the outer side and the inner side of the outer Dewar respectively. The surface of the radiation screen is provided with a high-temperature superconducting tape, and two ends are connected with a vehicle-mounted superconducting magnet to form a closed loop. When a train runs, the vehicle-mounted superconducting magnet induces current in the suspension coil, the vehicle-mounted power generation coil generates power by using a harmonic magnetic field of the suspension coil, the vehicle-mounted excitation coil generates a traveling wave magnetic field and induces voltage on the high-temperature superconducting strip, and based on the magnetic flux quantum coupling theory, the induced voltage has a direct-current component. The vehicle-mounted superconducting magnet is excited, and attenuation of magnet current is compensated. According to the invention, efficient and stable non-contact direct current compensation of the vehicle-mounted superconducting magnet is realized.

The utility model relates to the technical field of preparation of synthetic ammonia from natural gas, and discloses a cooling device for preparation of synthetic ammonia from natural gas, which comprises a cooling box, gas storage boxes are fixedly mounted on the left side and the right side of an inner cavity of the cooling box through supports, and guide pipes are uniformly communicated between the two gas storage boxes. Through the arrangement of the gas storage box, the guide pipe, the water storage pipe, the spraying head, the coiled pipe, the conduction plate, the submersible pump and the three-way pipe, the ammonia raw material gas can be conveniently conducted and cooled, meanwhile, the conduction cooling area of the ammonia raw material gas can be increased through the arrangement of the guide pipe, the conduction plate and the coiled pipe, the cooling speed of the ammonia raw material gas is increased, and the service life of the ammonia raw material gas is prolonged. By arranging the air box and the cooling fan, air blowing cooling can be conducted on the guide pipe, the conduction cooling speed of the ammonia gas raw material gas is further increased, by arranging the structure, multi-stage rapid cooling use can be achieved, and therefore the use requirements of customers can be met, and the production efficiency is prevented from being affected.

An integration component for a temperature-control system of a motor vehicle, by which component a fluidic circuit is formed, has a finished part for conducting a coolant and at least one fluid element. The finished part has an outer housing; a cooling channel structure which is formed by a network of cavities within the outer housing and is intended for conducting the coolant; cooling channel connections for cooling channels of the cooling channel structure, which connections are formed in one piece with the outer housing and can be coupled to components of the temperature-control system; and at least one receiving portion for the at least one fluid element, wherein the at least one fluid element is located above the receiving portion in order to influence a flow of the coolant in at least one cooling channel of the cooling channel structure.

The invention relates to a liquid-helium-conduction-free cooling quantum resistance device carrying platform, and the carrying platform comprises a cold conduction column which is provided with a heat conduction thread at the outer edge of the bottom and is used for binding a cold conduction belt; the center of the bottom of the chip carrying table is fixedly connected with the top of the cold conduction column; the circuit board group comprises an interface circuit board, a first carrier plate, a second carrier plate, a third carrier plate and a fourth carrier plate which are stacked from top to bottom and are electrically connected with one another through gold-plated contact pins; the first carrier plate is fixed below the interface circuit board through an isolated interface, the second carrier plate and the third carrier plate are fixedly mounted on the upper side of the chip carrier, and the fourth carrier plate is fixedly connected below the third carrier plate; the resistor chip is fixed on the upper surface of the chip carrier and is electrically connected with the gold-plated patch on the surface of the second carrier through a bonding lead; and the gold-plated patch and the gold-plated pin form a path. The operation complexity is obviously reduced, long-term stable operation of the quantum resistor in a liquid-helium-free environment is realized, and the traceability precision of resistance value transmission is ensured.

The embodiment of the present application discloses a magnetic resonance image guided radiotherapy system. The magnetic resonance image guided radiotherapy system comprises a radiotherapy device, the radiotherapy device comprises a treatment head; a magnetic resonance imaging device, the magnetic resonance imaging device comprises a main body, the main body is provided with a superconducting magnet adopting a liquid-helium-free conduction cooling technology and a through hole communicating the inner wall and the outer wall of the main body; the treatment head is at least partially arranged in the through hole and is used for emitting a radiation beam to the internal cavity of the main body to perform radiotherapy.

The invention relates to a method for operating a fuel cell system (1), comprising a fuel cell stack (2) and a cooling circuit (3) which conducts a coolant and into which the fuel cell stack (2) is integrated, wherein, during normal operation, the coolant is circulated with the aid of a coolant pump (4) which is integrated into the cooling circuit (3). According to the invention, in the event of a shutdown, the coolant pump (4) is activated intermittently and / or at specific time intervals and the coolant is conducted through an ion exchanger (5) integrated into the cooling circuit (3) such that any acids or bases produced in the coolant are bonded with the aid of the ion exchanger (5). The invention also relates to a control device for a fuel cell system (1).

The present invention discloses a novel conductive cooling structure for superconducting magnets, belonging to the technical field of superconducting motors. The structure comprises a first copper plate, a second copper plate, a connecting copper block, and a copper braid. The first and second copper plates are arranged relative to each other on the upper and lower surfaces of the superconducting magnet to form a magnet support cooling skeleton. Connecting copper blocks are symmetrically arranged on both sides of the skeleton. The connecting copper blocks are symmetrically arranged on both sides of the skeleton and include a supporting portion and an extension portion. The supporting portion is arranged between the first and second copper plates, and the extension portion is arranged outside the supporting portion and bends and extends toward the bottom of the second copper plate. The two ends of the copper braid are connected to the symmetrically arranged extension portions of the connecting copper blocks. The structure of the present invention greatly enhances the utilization of cooling medium, achieves significant cooling effect, and has a simple structure, easy processing, and low cost.

A system and method enabling the use of convection cooled dual-inline memory modules (DIMM) in non-convection environments, specifically used for computing applications for harsh environments. This system and method describes a design which transfers heat from the various components on the memory module to thermally opportunistic areas of an enclosure in the absence of sufficient or in some cases any convective cooling conditions. The system and method describes a sandwiched metal heat plate assembly, being constructed from a thermally conductive material, which is attached to a heat pipe, designed to be highly thermally conductive, which is further attached to a thermally conductive cold plate saddle, which in turn is connected to a thermal sink. The heat generated in the DIMM is conducted to the heat plate by way of a thermal interface material, this energy transferred to the heat pipe, and then to a cold plate which dissipates the energy to the ambient environment. The system does not require a plurality of fins inside the enclosure, liquid cooling, nor airflow within the enclosure to accomplish the memory thermal management. The invention includes a heat pipe saddle, a heat pipe, a clamshell heat extraction mechanism in conjunction with a thermal interface compound for improving the heat transfer from the DIMM to the heat sink.

A semiconductor module includes a heat sink configured to conduct a cooling fluid in a cooling-fluid flow direction. A first semiconductor assembly is arranged on a surface of the heat sink. The first semiconductor assembly includes a first substrate having a first dielectric material layer, and a first semiconductor element connected to the first substrate. A second semiconductor assembly is arranged on the surface of the heat sink and closest to a downstream end of the heat sink. The second semiconductor assembly includes a second substrate having a second dielectric material layer, and a second semiconductor element connected to the second substrate. The second dielectric material layer has a thermal conductivity which is higher than a thermal conductivity of the first dielectric material layer.

The application belongs to the technical field of superconductivity, and discloses a conduction cooling superconducting magnet and a processing method thereof. The conduction cooling superconducting magnet comprises a superconducting magnet framework, a superconducting coil and a cold conducting ring. The superconducting magnet framework has a plurality of interval arranged partitions. The partitions are provided with axial notches arranged along the circumferential direction. The superconducting coil is wound on the superconducting magnet framework. The cold conducting ring is installed on the radial outer side of the superconducting coil. The cold conducting ring is a plurality of, and the plurality of cold conducting rings are distributed along the circumference of the superconducting coil. Each cold conducting ring is provided with an avoiding notch for the partition to pass through. At least two external cold conducting joints are arranged on each cold conducting ring. The application realizes the winding and cold conducting functions of the superconducting coil, greatly improves the winding and cold conducting structure installation efficiency of the superconducting coil, reduces the manufacturing cost, and has good cold conducting effect because the cold conducting ring as the cold conducting structure is directly installed on the outer side of the superconducting coil.

The utility model discloses a uniform cooling device for ABS (Acrylonitrile Butadiene Styrene) plastic production, which comprises a main box body and a cooling inner box, support frames are arranged at the bottom ends of the outer walls of the two sides of the main box body, base plates are arranged at the bottoms of the two groups of support frames, two groups of feed hoppers communicated with the cooling inner box are arranged at the top of the main box body, and a guide frame is connected to the bottom of the cooling inner box. The rear side wall of the main box body is connected with an air cooler, an air outlet of the air cooler is connected with an air conveying pipe, the air conveying pipe is provided with a plurality of sets of air outlet heads, heat conduction cooling components are arranged on the periphery of the cooling inner box, and heat dissipation openings which are formed in a penetrating mode are formed in the side walls of the periphery of the main box body. Cold air can be evenly blown to ABS plastic of the cooling inner box through the air cooler through the multiple sets of air outlet heads on the air conveying pipe, uniform cooling of the ABS plastic is achieved, heat in the cooling inner box is cooled through the heat conduction cooling part in the peripheral direction, and the cooling effect of the ABS plastic in the cooling inner box is improved.

The invention relates to the technical field of frozen soil engineering disease treatment and prevention and control, in particular to a one-way heat conduction water heat prevention and control tower footing stability enhancing device which comprises a water storage and supplement unit, a sunshade unit and a heat insulation and cold storage unit. The heat insulation and cold storage unit is buried in frozen soil around the bottom of a power transmission line iron tower material and extends above the ground surface, and the surface of the heat insulation and cold storage unit is in a water dispersing shape with the high inside and the low outside and used for reducing the temperature of the frozen soil on the lower portion in winter. According to the filling type combined structure, through organic cooperation and cooperative linkage of all the units, the synergistic effect mechanism of sunshade cooling, one-way heat conduction cooling and multi-stage cooling is innovatively adopted, the good protection effect on lower frozen soil is achieved, the dual purposes of the excellent cooling effect and the improvement of the stability of a frozen soil foundation are achieved, and the filling type combined structure has the high flexibility and is suitable for large-scale popularization and application. The method can fully adapt to the complex working conditions that the field terrain is uneven and the landform changes drastically, and the problem that a traditional structure is insufficient in adaptability to the construction environment is effectively solved.

The invention relates to the technical field of high-temperature superconducting magnet detection, and discloses a detection method and system for a conduction cooling type high-temperature superconducting magnet, and the system comprises a magnetic field intensity detection module which is used for monitoring the magnetic field intensity of the high-temperature superconducting magnet in real time; the temperature detection module is used for detecting temperature information of all parts of the high-temperature superconducting magnet. And the current detection module is used for detecting the current flux of each part of the high-temperature superconducting magnet. And the judgment module is used for evaluating the health score of the high-temperature superconducting magnet according to the magnetic field intensity of the high-temperature superconducting magnet, the temperature distribution of the high-temperature superconducting magnet and the current distribution of the high-temperature superconducting magnet. And the early warning module is used for comparing the evaluated health score with a preset health score and sending an early warning notification according to a comparison result. Through cooperative work of all the modules, the operation state of the magnet can be effectively and comprehensively monitored, potential problems can be found in time, and an alarm notice is sent to an operator.

The application relates to a pumped conduction-cooled semiconductor laser package structure and a packaging method thereof. The package structure comprises an L-shaped heat dissipation heat sink, an AlN ceramic substrate is arranged on the vertical arm of the L-shaped heat dissipation heat sink, a multi-chip array matched with the AlN ceramic substrate is arranged above the AlN ceramic substrate; the multi-chip array comprises alternately connected tungsten copper heat sinks and mini chips, and the tungsten copper heat sinks and the mini chips are arranged in an array with one end aligned; a groove is arranged on the AlN ceramic substrate, and the groove and the positions and numbers of the mini chips correspond; a mounting fixing hole is arranged on the horizontal arm of the L-shaped heat dissipation heat sink. The application realizes side light emission through side welding insulation of the chips, and overcomes the problem that the existing devices packaged by centimeter bar are usually upward light emission. Meanwhile, the current used at the same time is small, and uneven heat dissipation is avoided.

The application provides a liquid-helium-free superconducting magnet for a rotating gantry, and relates to the technical field of superconducting magnets, and comprises a superconducting coil framework, which is a circular ring structure and is made of non-metallic G10 material; a superconducting coil assembly, which is wound on the surface of the superconducting coil framework; a cold conducting assembly, which is a ring-shaped conduction cooling structure, is nested with the superconducting coil framework, and is configured to transfer cold energy to the surface of the superconducting coil assembly to cool the superconducting coil assembly; a cold conducting copper braided belt, one end of which is connected with the cold conducting assembly; a two-stage cold conducting conversion plate, which is connected with the other end of the cold conducting copper braided belt; and a refrigerator, which is connected with the two-stage cold conducting conversion plate; wherein the cold energy is transferred to the two-stage cold conducting conversion plate through the cold head of the refrigerator, and then is transferred to the cold conducting assembly through the cold conducting copper braided belt.

The invention provides a bunched wire harness with a liquid cooling heat dissipation fixing structure. The bunched wire harness comprises a shell, an isolation assembly and a flow guide assembly. The shell comprises a cavity, spiral cooling fins arranged on the peripheral face of the shell and a backflow pipe. The isolation assembly comprises a partition plate consistent with the twisting direction of the heat dissipation fins and a cold flow channel penetrating through the partition plate, the partition plate is used for partitioning the wire harness, and the cold flow channel is used for conducting a cooling medium to the backflow pipe; the flow guide assembly comprises a flow dividing piece for inputting a cold area medium, a flow converging piece for discharging the cold area medium and a circulating bin for guiding a rotary cooling medium, and is used for forming a complete circulating channel. According to the invention, through dual heat dissipation of external air cooling and internal liquid cooling, the problems of uneven heat dissipation and insufficient heat dissipation of the bunched wire harness are solved; the partition plate achieves the dual functions of wire harness fixing and heat dissipation and conduction; the device is high in heat dissipation efficiency, reliable in sealing, high in adaptability and suitable for installation and heat dissipation of the high-power bunched wire harness.

The invention discloses a circuit breaker double 485 self-healing communication and pulse fault-tolerant aggregation, and relates to the field of circuit breakers, the circuit breaker double 485 self-healing communication and pulse fault-tolerant aggregation comprises a first shell, a second shell is fixed on the first shell, a heat dissipation supporting plate is fixed in the second shell, and an efficient heat dissipation mechanism is arranged on one side, away from an arc extinguish chamber, of the heat dissipation supporting plate. An auxiliary ventilation mechanism is arranged on the side, away from the arc extinguish chamber, of the heat dissipation supporting plate. When natural heat dissipation cannot meet the heat dissipation requirement, the efficient heat dissipation mechanism on the heat dissipation supporting plate is used for conducting temperature conduction and cooling, meanwhile, the efficient heat dissipation mechanism sucks in external air and then discharges the external air, the external air is used for assisting the efficient heat dissipation mechanism, and meanwhile the efficient heat dissipation mechanism drives the auxiliary ventilation mechanism; and the auxiliary ventilation mechanism drives the filter plate to vibrate, so that on the premise of ensuring electrical safety, accurate temperature control of the most critical heating point is realized, preposed heat guarantee is provided for the communication module, and leap of the overall performance and reliability of the circuit breaker is realized.

The utility model relates to the technical field of injection molds, in particular to a battery box lower cover mold with an auxiliary cooling forming function, which comprises a processing table and a cooling mechanism. According to the mold, during mold closing, the hydraulic cylinder drives the upper mold base to move downwards, and the upper mold base bears the upper mold body and transmits power. The upper mold body is matched with the guide columns through the bottom guide grooves and accurately aligned with the lower mold body to form the upper portion of a closed cavity, the upper mold body and the lower mold body form a complete cavity, and the lower cover of the battery box can be formed after molten plastic is injected. During injection molding, the temperature sensor monitors the temperature of the forming mechanism in real time and transmits data to the control system. Molten plastic heat is transferred to the cooling plate, and a heat conduction layer above the cooling plate optimizes conduction. The cooling plate and the cooling box form a cooling liquid input channel through the water inlet, the first communicating pipe and the first water pump, the other side of the cooling plate and the second communicating pipe form an output channel through the water outlet to complete circulation, and the control system regulates the flow of the electromagnetic valve according to feedback and radiates heat of the radiator in the cooling box to ensure uniform cooling and forming.

The invention discloses a low-temperature cooling system for a superconducting rotor of a superconducting motor, belongs to the field of superconducting motors, and aims to solve the problems that an existing refrigerant transmission device for the superconducting rotor of the superconducting motor is complex in structure and poor in sealing possibly. Comprising a rotor cooling shell, a cooling inner stator, a refrigerant inlet pipe and a refrigerant outlet pipe device. The rotor cooling shell, the cooling inner stator, the refrigerant inlet and outlet pipe and the refrigerant outlet pipe form a cooling loop, a refrigerant is pumped into the cooling loop through the low-temperature pump, the rotor cooling shell is cooled in a convective heat exchange mode, and then the rotor iron core and the superconducting magnet assembly are cooled in a conduction cooling mode. The refrigerant inlet pipe and the refrigerant outlet pipe are static, so that a low-temperature medium is prevented from flowing through the rotary sealing joint, the low-temperature cooling structure is simplified, and the reliability of the superconducting rotor is improved.

The utility model discloses a security camera technical field's security camera that good heat dissipation effect, including roof and connecting frame, the connecting frame top and the roof lower wall surface center department connection, the connecting frame lower extreme installation has the camera casing, install camera module in the camera casing, the camera casing upper end one side is installed with heat dissipation structure, the heat dissipation structure includes fixed plate, operating box, air intake pipe, protection subassembly, air inlet fan, heat dissipation fan, heat dissipation fin, semiconductor refrigeration piece and conduction cooling subassembly, the heat dissipation structure of the case, adopt the cooperation mode of semiconductor refrigeration piece and conduction cooling subassembly, can realize the effective cooling of air intake, and through the cooperation of the air inlet fan that sets up, can effectively deliver low temperature gas to the inside of camera casing, and exhaust through the exhaust hole, can fully guarantee the heat dissipation effect of security camera.

The utility model relates to the technical field of lithium battery heat dissipation, in particular to a fast charging heat dissipation device for an automobile lithium battery. According to the technical scheme, the cooling device comprises a lower vacuum heat conduction cooling disc, a cushion disc and an upper vacuum heat conduction cooling disc, and further comprises a water cooling assembly and a steam condensation assembly, and through the arrangement of the water cooling assembly and the steam condensation assembly, cooling liquid in the lower vacuum heat conduction cooling disc absorbs heat from a battery in the flowing process; the cooling liquid in the upper vacuum heat conduction cooling disc can also cool the upper end of the flat heat pipe all the time, meanwhile, the cooling liquid in the lower water cooling channel can be partially evaporated after heat absorption and temperature rise, and steam can be quickly condensed into liquid when floating upwards and making contact with the inner wall of the upper end of the flat heat pipe which is cooled all the time; and the liquid flows back to the lower part along the capillary holes of the capillary structure layer, so that the cooling liquid can be cooled in the process of absorbing the heat of the battery instead of being cooled only in a heat exchanger.

The utility model relates to the technical field of welding fixtures, in particular to an adjustable automobile welding fixture. According to the technical scheme, the device comprises a bottom plate and a telescopic heat conduction pipe and further comprises a fixing frame fixedly installed on the top of the bottom plate, a containing table installed on the bottom plate is arranged below the fixing frame, a box is fixedly connected to the top of the fixing frame, adjustable clamps are arranged on the two sides of the fixing frame, and the adjustable clamps are arranged on the bottom plate. A telescopic heat conduction pipe fixedly connected with the bottom of the box body is arranged on the adjustable clamp, and a rectangular through opening allowing the telescopic heat conduction pipe to penetrate through is formed in the fixing frame. According to the utility model, the conduction cooling of the heat of the clamp in the welding process is realized, the flow speed of cooling water is obviously improved, the heat exchange rate is accelerated, the cooling and heat dissipation effects are improved, the service life of the clamp is longer, and the clamping effect is better.

The invention relates to a hexagonal asymmetric pumping conduction cooling bicrystal laser module and a packaging method, the module comprises a special-shaped hexagonal heat sink, the special-shaped hexagonal heat sink comprises a bottom plate heat sink, a pumping heat sink A and a pumping heat sink B, the pumping heat sink A and the pumping heat sink B are respectively arranged on two sides of the bottom plate heat sink, the structures of the pumping heat sink A and the pumping heat sink B are the same, and the pumping heat sink A and the pumping heat sink B are arranged on the bottom plate heat sink. The pumping heat sink A and the pumping heat sink B are C-shaped heat sinks, the opening side of each C-shaped heat sink is provided with three sintering planes, each sintering plane is provided with a bar array, the two sides of the bottom plate heat sink are provided with a laser crystal A and a laser crystal B through diamond copper-crystal heat sinks respectively, and the laser crystal A and the laser crystal B are located in openings of the pumping heat sink A and the pumping heat sink B respectively. Thermal crosstalk is remarkably reduced, heat-light distribution is optimized in a collaborative mode, through unique geometric design and a packaging technology, it is ensured that heat is evenly dissipated while the size of the module is reduced, and finally high-symmetry laser spots are output.