56results about How to "Efficient conduction" patented technology

The utility model relates to the technical field of automobile connector fixing, and discloses an automobile connector fixing structure which comprises a connecting mechanism, a fixing mechanism and a main body mechanism, the connecting mechanism is located at the top end of the fixing mechanism, the fixing mechanism is located at the top end of the main body mechanism, and the connecting mechanism comprises a first connector. A second connector is connected to the inner wall of the first connector in a sleeved mode, a clamping groove is formed in the outer wall of the second connector, a clamping block is connected to the inner wall of the clamping groove in a clamped mode, and a spring is fixedly connected to the back face of the clamping block. The spring is arranged between the first connector and the clamping block, so that the clamping block can be controlled to contract by extruding the spring, and when the clamping block enters the bottom of the clamping groove, the spring provides support for the clamping block, so that the clamping block can be tightly matched with the clamping groove, and the first connector and the second connector can be stably connected; the connector is prevented from accidentally falling off, and the structural stability of the automobile connector at the connecting part is ensured.

The invention discloses a control method, a control device and an air conditioner. The air conditioner comprises an air outlet panel, the air outlet panel comprises a front air outlet and a lower air outlet, the front air outlet is used for supplying air forwards and is provided with a front air outlet air deflector assembly, and the lower air outlet is opened downwards and is provided with a lower air outlet air deflector assembly; the front air outlet air deflector assembly and the lower air outlet air deflector assembly operate independently. The front air outlet air deflector assembly comprises an outer side air deflector assembly and an inner side air deflector assembly which operate independently; the control method comprises the steps that the outer side air guide plate assembly, the inner side air guide plate assembly and the lower air outlet air guide plate assembly are controlled, so that a multifunctional air supply mode is achieved through cooperation of the front air outlet and the lower air outlet. According to the scheme, the problem that a user feels cold in legs and feet due to the fact that downward air supply is difficult and particularly hot air conduction is difficult can be solved, the conduction angle of hot air can be controlled, the selectivity of the user is more, and therefore the carpet type heating effect can be achieved.

The application discloses a three-core UTP cable, a three-core UTP wire harness and a camera module, comprising a differential signal line pair, a ground signal line, a filler and an outer insulation layer, the outer insulation layer wrapping the differential signal line pair, the ground signal line and the filler, and the filler being located between the differential signal line pair, the ground signal line and the outer insulation layer; the differential signal line pair comprises a first differential signal line and a second differential signal line, and the first differential signal line and the second differential signal line are twisted by a double-twisted wire structure; and the differential signal line pair and the ground signal line are arranged at intervals. The application provides a more stable and reliable grounding path, can effectively conduct electrostatic charges, avoids accumulation of static electricity on the camera module, and can effectively solve the ESD failure problem of the camera module based on the UTP wire harness.

This application discloses a hollow cage-like silicon-carbon composite anode material and its preparation method. The hollow cage-like silicon-carbon composite anode material has an internally hollow cage-like structure. The cage-like structure is formed by the self-assembly of a 3D network structure, which includes a framework and multiple carbon spheres. The framework includes silicon material, specifically one-dimensional linear silicon material, and the multiple carbon spheres are attached to the silicon material. Compared to existing porous carbon frameworks, the hollow cage-like silicon-carbon composite anode material disclosed in this application not only has higher capacity and conductivity but also possesses the flexibility lacking in porous carbon. When other anode materials, especially silicon-based anode materials, are loaded into the hollow structure, the cage-like structure can provide more expansion space for the internal anode material, thereby more effectively improving the cycle stability of the anode material.

The invention discloses a silicon negative electrode active material which sequentially comprises a silicon-based material inner core, a flexible solid electrolyte or gel electrolyte middle layer and a carbon-coated outer layer from inside to outside, the flexible solid electrolyte or gel electrolyte middle layer comprises a conductive agent, and the conductive agent comprises a carbon nanotube. According to the silicon negative electrode active material, the surface of the silicon-based material is coated with the flexible solid-state or gel-state electrolyte, so that the volume change of the negative electrode active material in the charging and discharging process is effectively relieved, the electrolyte is isolated, the stability of the negative electrode active material is improved, and the negative electrode active material has relatively high reversible specific capacity and relatively high specific surface area; and excellent long cycle performance is shown.

The utility model belongs to the automobile lighting technical field discloses a kind of vehicle-mounted integrated formula carpet slow lamp, comprising: heat dissipation shell, pedestal, carpet lamp assembly, slow lamp assembly and cover plate;Heat dissipation shell is integrally formed as having body part and cylinder part, and form heat dissipation fin on outside surface;Pedestal is combined in heat dissipation shell and forms internal space between each other;Carpet lamp assembly is fixedly arranged in the heat dissipation shell and is contained in the internal space and the cylinder part;The slow lamp assembly is fixedly arranged in the heat dissipation shell and is contained in the internal space;The cover plate is made of light-transmitting material with mirror surface, and it is combined in pedestal to shield carpet lamp assembly and slow lamp assembly.The utility model integrates carpet lamp assembly, slow lamp assembly and rearview mirror together, by higher integration, so that carpet lamp assembly and slow lamp assembly are more far from vehicle body in spatial structure, so that the optical design degree of freedom of carpet lamp assembly and slow lamp assembly is higher.

The application discloses a kind of discrete series low distributed capacitance liquid cooling heat dissipation device and method, it belongs to electronic device heat dissipation technical field, heat dissipation device includes several heat dissipation units, the top of each heat dissipation unit is used to set power device, and two adjacent heat dissipation units are connected by cooling liquid pipeline;Each heat dissipation unit includes matrix and radiator, cooling liquid pipeline is through the inside of matrix, the top center of matrix is equipped with mounting hole, and mounting hole is equipped with radiator, and the lower half of radiator is inserted into the inside flow channel of cooling liquid pipeline, and the top of radiator is used to place power device.The application adopts discrete series heat dissipation unit structure, cooling liquid pipeline is through each unit matrix, and the lower half of radiator is inserted into the inside flow channel of pipeline, and each unit independently corresponds a power device.Solve the parasitic distributed capacitance problem caused by shared metal radiator, eliminate resonance loop, inhibit switching oscillation, reduce loss, ensure that heat dissipation is uniform and dynamic equalization, improve the stability and service life of high-voltage series module.

The present application relates to the technical field of energy storage, in particular to a circuit board heat dissipation assembly, a preparation method thereof, and an energy storage system, the circuit board heat dissipation assembly comprising a circuit board, a frame, a heat-conducting glue, and a functional component; the circuit board has a heat dissipation area and a connecting area, and the connecting area is arranged around the heat dissipation area; the frame is formed with a heat dissipation cavity; the functional component covers a first open end of the heat dissipation cavity, the circuit board is arranged in the frame through the connecting area to cover a second open end of the heat dissipation cavity, and the heat dissipation area is communicated with the heat dissipation cavity; the heat dissipation area is provided with a glue pouring hole and a glue overflow hole communicated with the heat dissipation cavity; the heat-conducting glue is configured to be injected into the heat dissipation cavity through the glue pouring hole when in a liquid state and solidified, and the heat-conducting glue is fixed to the heat dissipation area and the functional component, respectively. Through the arrangement of the frame and the heat-conducting glue, a heat conduction path is formed between the circuit board and the functional component, heat generated by the circuit board or the functional component can be efficiently conducted and dissipated through the heat-conducting glue, and the operation reliability of the circuit board and the functional component is ensured.

The utility model provides a top sealed type semiconductor refrigerator, which relates to the technical field of semiconductor thermoelectric refrigeration, and comprises a radiating fin, a refrigeration sheet and an evaporation sheet, the top of the radiating fin is provided with a groove, the bottom of the evaporation sheet is provided with a base, the bottom of the base is provided with a fitting groove, and the refrigeration sheet is arranged in the groove and is positioned in the fitting groove; the grooves are matched with the attaching grooves, the grooves in the tops of the cooling fins are used in cooperation with the attaching grooves in the bottoms of the evaporation fins, the contact area between the refrigeration fins and the cooling fins and the contact area between the refrigeration fins and the evaporation fins are increased, heat resistance is reduced, and heat transfer efficiency is improved; the refrigeration sheet, the cooling sheet and the evaporation sheet are bonded through heat conduction silicone grease glue, interface gaps are filled with the silicone grease glue with the high heat conduction coefficient, it is ensured that heat is rapidly conducted to the cooling sheet, cold energy is efficiently transferred to the evaporation sheet, and the overall energy efficiency is improved.

The invention relates to the field of detection devices, in particular to a gas suction pipeline type combustible gas concentration detection device which comprises a gas suction sampling pipeline structure and a combustible gas detection unit. The combustible gas detection unit comprises an infrared detection cavity, a spherical optical fiber emission light source, an optical fiber and a detection circuit assembly; the inspiration sampling pipeline structure comprises a plurality of inspiration sampling pipelines, and the inspiration sampling pipelines are respectively communicated with different protection areas and are used for extracting sampling gas of the corresponding protection areas. The spherical optical fiber emission light source with the sapphire glass shell and the vacuum cavity is adopted, interference of the external environment on infrared rays emitted by the lamp filament is reduced, the multiple optical fibers are welded to the outer side of the shell, stable and efficient conduction of multiple paths of infrared rays can be achieved, infrared signal attenuation is reduced, the detection circuit assembly is combined with the Beer-Lanbert law, and the detection precision is improved. And the concentration is calculated by accurately measuring the characteristic frequency of the emitted infrared rays, so that the accuracy and consistency of the detection result are further improved.

The utility model relates to the technical field of start-stop controllers, in particular to an automatic start-stop controller for a motorcycle. The controller comprises a shell and a circuit board fixedly connected with the shell, a main chip, an MOS bridge and a driver which are connected are arranged on the circuit board, heat dissipation elements are connected to the side, away from the circuit board, of the shell, the heat dissipation elements are distributed on the shell at intervals, a heat dissipation boss is arranged in the shell, a gap is formed between the heat dissipation boss and the circuit board, and the heat dissipation boss corresponds to the main chip in position. Compared with the prior art, the start-stop controller has the advantages that the heat dissipation effect of the start-stop controller is improved, the service life of the chip is further prolonged, and the like.

The utility model relates to the technical field of automobile starter, especially relates to a integrated automobile starter switch cover, provide a integrated automobile starter switch cover, including automobile starter shell, mounting panel, pivot, switch cover, connecting block, connecting plate and sliding rod etc., the mounting panel is symmetrically installed on automobile starter shell front and back, the pivot is rotatably connected between two mounting panels, the switch cover is connected on the pivot, the switch cover is in contact with automobile starter shell and cooperates, the connecting block is symmetrically connected on the switch cover front and back, the connecting plate is symmetrically connected on automobile starter shell front and back, the sliding rod is slidably connected on two connecting plates up and down symmetrically. Through setting rotatable switch cover and linkage locking mechanism (including sliding rod, wedge block, connecting block and spring assembly), the quick opening and closing operation of switch cover is realized, and the internal components can be maintained without disassembling the overall shell.

This application relates to a self-cleaning corona treatment machine, belonging to the technical field of corona treatment. It includes a support frame, with a cleaning mechanism fixedly connected to the outside of the support frame. Multiple heat dissipation mechanisms are fixedly connected to the inside of the support frame. The cleaning mechanism includes a drive assembly for driving, with a connecting rotating plate fixedly connected to the outside of the drive assembly. The drive assembly is externally fixed to the support frame, and a connecting support column is fixedly connected to the outside of the connecting rotating plate. A connecting rotating column is rotatably connected to the outside of the connecting support column. This application effectively removes dust and impurities from material surfaces, preventing the corona treatment effect from being weakened by foreign matter adhesion, ensuring the uniformity of material surface activation. Simultaneously, the mechanical transmission structure is stable, improving production efficiency and extending the service life of the corona treatment equipment.

The utility model relates to the technical field of high-voltage motors, and provides a composite insulation structure of a high-voltage motor stator, which comprises an aluminum nitride ceramic sleeve sleeved outside the high-voltage motor stator and a liquid cooling assembly used for cooling the stator. The liquid cooling assembly further comprises a refrigeration part used for cooling the cooling liquid returning to the liquid storage tank. A high-voltage motor stator is integrally wrapped through the aluminum nitride ceramic sleeve to achieve a good insulation effect, heat generated by the stator is conducted through the aluminum nitride ceramic sleeve, cooling liquid is pumped into the flow dividing piece through the circulating pump to form liquid cooling circulation, and the cooling liquid flows through the first flow channel to form liquid cooling circulation. Heat conducted by the aluminum nitride ceramic sleeve is absorbed and carried, so that the effect of cooling the stator is achieved, the stator can be efficiently cooled while the insulating property is good, and long-term safe and stable operation of the high-voltage motor is guaranteed.

The utility model relates to the technical field of lighting equipment, and discloses a waterproof sealing device for an LED (light-emitting diode) pin lamp, which comprises a lamp body shell, the lamp body shell is integrally formed by high-strength die-casting aluminum alloy and is of a cylindrical structure with one closed end and one open end, and the inner wall of the lamp body shell is subjected to anodic oxidation treatment to enhance corrosion resistance. A front cover is installed at an opening of the lamp body shell in a matched mode, an annular clamping groove is formed in the front cover, the inner diameter of the clamping groove is accurately matched with the outer diameter of the lamp body shell, and an annular sealing ring is embedded in the clamping groove. According to the waterproof sealing device for the LED pin lamp, through a double sealing structure of the annular sealing ring and the conical sealing ring and a mechanical fastening mode of the metal pressing ring and the threads, the sealing ring generates controllable elastic deformation, a gap between the lamp body shell and the front cover is effectively filled, the waterproof grade can reach IP68, and the waterproof sealing device can normally work even if the waterproof sealing device is soaked in water for a long time; and the reliability of the lamp in a severe environment is obviously improved.

The utility model relates to the technical field of PCB (printed circuit board) mounting structures and plant lamps, in particular to a lampshade for mounting a PCB and a lamp panel type plant lamp free of screw mounting. A lampshade for mounting a PCB (printed circuit board) comprises a body, hooking parts are arranged on two sides of the body respectively, and pressing legs used for abutting against the PCB are further arranged on two sides of the body respectively. According to the lampshade structure for installing the PCB, the PCB lamp panel can be rapidly and firmly buckled and installed on the heat dissipation piece without any screws, smooth attachment and efficient heat dissipation of the lamp panel and the heat dissipation piece are guaranteed, the lens can be integrated in the lampshade body so that light path refraction or light condensation can be achieved, meanwhile, the structure is simplified, cost is reduced, and later maintenance is facilitated.

The utility model provides a kind of full liquid receiving floating disc sealing anti-rotation limiting device, belong to petrochemical field, including floating disc, the inside of the floating disc is provided with anti-rotation limiting assembly, the side of the anti-rotation limiting assembly is provided with auxiliary assembly, the utility model is provided with anti-rotation limiting assembly, it is realized as the structure of preventing rotation of floating disc, by rigid connection frame that penetrates the inside of floating disc, rotation torque is directly converted into axial tension and is transmitted to the edge of floating disc, forms distributed anchoring force, its internal filler material is while buffering torsional load, ensure the efficient conduction of restraint, from the mechanical root block the rotation tendency of floating disc, by the auxiliary assembly of setting, it is realized that this component constructs friction in the periphery of floating disc: outside corrosion-resistant friction structure is consumed rotary kinetic energy by contact tank wall, realize physical brake;Prevent the rotation risk induced by imbalance or deformation.

A novel washbasin includes a washbasin body with a wash basin. An installation channel is formed on one side of the bottom of the washbasin body. The washbasin body has an installation surface and a usage surface. A flushing valve is installed inside the installation channel. A press-fit port communicating with the installation channel is formed on the usage surface. One end of the flushing valve extends out of the installation channel through the press-fit port. Pressing the flushing valve releases water. The usage surface is located away from the installation surface. The installation surface is fixed to the wall with bolts. The press-fit port on the usage surface allows the user to flush without manually opening the flushing valve; simply lifting the knee and gently pressing the cap inside the press-fit port activates the flushing function, making it convenient and quick. Furthermore, the edges of the washbasin body are rounded to prevent scratches during use. The bottom of the wash basin is designed to slope, facilitating rapid water flow into the drain and keeping the washbasin clean and dry.

The invention belongs to the technical field of superconducting motors, and discloses a superconducting motor rotor cooling mechanism, which comprises a superconducting magnet, an iron core, a torque support frame, a Dewar unit and a cooling pipeline assembly, and is characterized in that the Dewar unit comprises a shaft system and an outer Dewar structure, and the outer Dewar structure is provided with an accommodating cavity; the superconducting magnet, the iron core, the torque support frame and the shaft system are sequentially in key connection from outside to inside, the shaft system penetrates through the outer Dewar structure and forms a closed space with the outer Dewar structure, and the superconducting magnet, the iron core and the torque support frame are all arranged in a containing cavity of the outer Dewar structure; the cooling pipeline assembly is arranged in the closed space and used for cooling the superconducting magnet, the iron core and the torque supporting frame. According to the superconducting motor rotor cooling mechanism provided by the invention, the low-temperature stability can be ensured, the structural design of a rotating machine is simplified, and the risk of heat leakage is reduced.

The utility model discloses a kind of super-low temperature vortex flowmeters, comprising: vortex flow valve body and suit protection heat insulation structure, the suit protection heat insulation structure is installed on the vortex flow valve body, the utility model relates to vortex flowmeter technical field, the super-low temperature vortex flowmeter innovation uses multilayer protection heat insulation structure, integrated vortex heat regulation and control and electromagnetic drive regulating system, significantly improve the operating performance under extreme low temperature environment;Its advantages include: efficient heat insulation design, through antifreeze circulating heating and U-shaped radiating pipe cooperation radiating ring, realize heat accurate conduction, effectively avoid the influence of low temperature on measurement accuracy.

The utility model discloses a safe double-sided PCB circuit board, and specifically relates to the technical field of PCBs. The safe double-sided PCB comprises a heat-conducting plate layer, the heat-conducting plate layer is made of copper or other high-heat-conductivity materials, base layers are fixed to the two sides of the heat-conducting plate layer, copper foil layers are fixed to the sides, away from each other, of the two base layers, and solder mask layers cover the sides, away from each other, of the two copper foil layers. Electrical components are located on the solder mask layer, the base layer is made of glass fiber reinforced epoxy resin and has excellent insulation performance and mechanical strength, a circuit is etched on the copper foil layer, wires and connection points in the circuit can be formed, and electrical connection between electronic components is achieved. The safety type double-sided PCB provided by the utility model can prevent heat from being excessively concentrated in a local area, thereby reducing the probability that electrical elements are damaged due to high temperature, and enabling the use of the PCB to be safer.

The utility model discloses a storage device for sludge, and relates to the field of sludge recovery treatment, the storage device comprises a device base, a storage mechanism and a supporting mechanism, the storage mechanism is fixedly mounted on the top surface of the device base, the supporting mechanism is welded to the front end position of the top surface of the device base, and a slurry pump is fixedly mounted above the supporting mechanism; the rear end of the slurry pump is in through connection with a screw pipe, and an extraction hose is fixedly inserted below the slurry pump; a motor is installed on the right side wall of the storage mechanism in an embedded mode, an inner barrel is fixedly embedded in the storage mechanism, and a feeding pipe is connected to the top face of the inner barrel in a penetrating mode. Sludge is dried through the resistance wire and the heat conduction pipe, the resistance wire generates heat through current, the generated heat is conducted to the heat conduction pipe through magnesium oxide powder, the purpose of heating and drying the sludge in the inner barrel is achieved, the heating effect is good, the working efficiency is high, the spirally-distributed heat conduction pipe can make the inner barrel evenly heated, uneven sludge drying work is avoided, and the sludge drying efficiency is improved. The drying effect is improved.

The utility model relates to the field of transformer heat dissipation, and discloses a heat dissipation device for a transformer, which comprises a heat dissipation part detachably arranged on a transformer main body, the plurality of fan main bodies are arranged at the lower part in the shell; the plurality of heat pipes are uniformly arranged at the upper part in the shell; the radiating fins are mounted on the shell; and the plurality of telescopic heat dissipation fins are uniformly arranged on the two sides of the shell. By arranging the fan body, the heat pipe, the heat dissipation fins and the telescopic heat dissipation fins, efficient heat dissipation is achieved, the fan body accelerates heat transfer by forcing air to flow, the heat pipe efficiently conducts heat to reduce temperature difference, and the heat dissipation fins increase the contact area to strengthen convective heat exchange. The telescopic heat dissipation fins dynamically adjust the heat dissipation area to adapt to different working conditions and are particularly suitable for occasions with limited space and fluctuating heat dissipation requirements, efficient heat dissipation is guaranteed, meanwhile, low noise and a compact structure are maintained, and multiple requirements of modern high-tech equipment are met.

The invention belongs to the technical field of epoxy resin materials, and particularly relates to a liquid crystal epoxy monomer and a preparation method thereof as well as intrinsic high-thermal-conductivity remoldable liquid crystal epoxy resin and a preparation method thereof. The epoxy resin prepared from the liquid crystal epoxy monomer provided by the invention has excellent intrinsic heat-conducting property and remodeling property.

This utility model relates to the field of LED technology and discloses a hybrid light source surface-mount LED, including a protective shell. A control board is mounted on the bottom side of the protective shell, and multiple hybrid light source chips are mounted on the top of the control board. Multiple snap-fit ​​slots are formed on the inner bottom side of the control board, and multiple heat sinks are fixedly connected inside the snap-fit ​​slots. A conversion tube is fixedly connected to the bottom of each heat sink, and conductive tubes are fixedly connected to both sides of the bottom of each conversion tube. A connecting bolt is threaded inside the protective shell, and a mounting plate is threaded onto the outside of the connecting bolt. In this utility model, the heat sinks are fixed by the snap-fit ​​slots on the bottom of the control board, allowing the heat sinks to precisely fit the control board and the hybrid light source chips. This enables rapid and efficient heat conduction from inside the LED to the external environment, effectively reducing the temperature of the control board and the hybrid light source chips, preventing performance degradation or component damage due to overheating, and ensuring stable LED operation.

The utility model discloses a 3D VC even temperature plate, even temperature plate includes lower cover, upper cover, heat pipe, and upper cover is covered on lower cover and forms evaporation cavity, and the upper cover is provided with through -hole, and the upper cover is equipped with sleeve at corresponding through -hole department, and the heat pipe bottom passes through sleeve and through -hole, and is linked together with evaporation cavity, and the evaporation cavity bottom surface and top surface are equipped with first capillary and third capillary respectively, and is equipped with second capillary between first capillary and third capillary, and is equipped with fourth capillary in heat pipe, the fourth capillary of heat pipe is reliable with second capillary and overlaps and is connected, and has strengthened even temperature plate evaporation condensation effect, has promoted the heat dissipation efficiency and product performance, and product consistency will stability better, the preparation process of the utility model is simple and reliable, is suitable for batch production, and the cost is low.

This application relates to the field of femtosecond laser technology and discloses a water-cooling structure for a high-power industrial femtosecond laser. It includes a set screw, a housing water-cooling plate, a standard water-cooling connector, a flow channel cover, a light guide side plate, a reflector mount, a light guide lens, an ED plug, and a sealing ring. The housing water-cooling plate has cooling channels inside. The flow channel cover, ED plug, and set screw seal the cooling channels. The housing water-cooling plate and the flow channel cover are connected by screws, and the flow channel cover has a sealing groove. The ED plug is threaded into the housing water-cooling plate and has a sealing gasket. The set screw is threaded into the housing water-cooling plate. A reflector mount is mounted on the housing water-cooling plate, and a light guide lens is mounted on the reflector mount. A light guide side plate is mounted on the side wall of the housing water-cooling plate, and the housing water-cooling plate and the light guide side plate are connected by screws. The light guide side plate has a light guide lens and a sealing ring. A standard water-cooling connector is threaded to one side of the housing water-cooling plate.

This utility model discloses a packaging barrel and a material extraction device, relating to the field of chemical technology. The material extraction device includes an extraction pipe and a metal guide rod; one end of the extraction pipe has a connecting part; the extraction pipe passes through the barrel body via an extraction channel, and the connecting part is assembled and connected to a connecting seat; one end of the metal guide rod is hinged to the connecting part; the metal guide rod passes through the barrel body, and the end of the metal guide rod facing away from the connecting part abuts against the inner liner bag inside the barrel; When the material extraction device provided by this utility model is extracted from the packaging barrel, the metal guide rod can, on the one hand, provide support for the inner liner bag inside the packaging barrel, preventing the inner liner bag from sticking to the opening of the extraction pipe as the material decreases, ensuring extraction efficiency; on the other hand, the metal guide rod conducts communication between the material inside the barrel and other external components, effectively removing static electricity inside the barrel and ensuring safety during the extraction process.

The utility model provides a hot nozzle core and belongs to the technical field of hot runner systems of injection molds. The structure comprises an inner annular component, the center of the inner annular component is provided with a melt channel used for connecting a sprue and a nozzle runner, the inner annular component is sleeved with an outer annular component, and a middle annular component used for preventing melt leakage is arranged between the outer annular component and the inner annular component. An axial positioning sealing structure is arranged between the middle annular component and the inner annular component and between the middle annular component and the outer annular component, and an outer axial positioning structure is arranged on the outer wall of the outer annular component. The outer annular component, the middle annular component and the inner annular component are pressed and attached to form a sealing interface, the middle annular component can eliminate a gap between the inner annular component and the outer annular component, and melt leakage caused by sealing failure and stress concentration caused by the gap can be avoided. High-efficiency conduction of heat through a contact surface can be ensured, contact thermal resistance can be reduced, and heat conduction efficiency can be improved.

The utility model relates to an electric lap joint structure and an inductor, and relates to the technical field of inductors, the electric lap joint structure comprises an aluminum core, a transition bar and a copper bar, the aluminum core comprises a vertical part and a straight part, the transition bar is arranged on the straight part of the aluminum core and is arranged between the straight part and the copper bar, and the transition bar is arranged between the vertical part and the copper bar. The aluminum core is electrically connected with the copper bar through the transition bar, and the aluminum core, the transition bar and the copper bar are fixed through bolts. The aluminum core and transition bar structure is used for replacing an all-copper inductor, aluminum serves as a material which is low in price and good in electric lead, and the production cost of the whole inductor can be reduced; the electric connection between the aluminum core and the copper bar adopts the transition bar for bridging, so that the direct contact between aluminum and copper is avoided, and the electrochemical corrosion is effectively avoided; and a bolt fixing mode is adopted, so that the complexity of a production process is reduced, the problem of material stress possibly caused by high-temperature welding can be avoided, and the reliability and stability of the inductor are further improved.