174results about How to "Improve current carrying capacity" patented technology

The invention discloses a server power supply system and a server, relates to the field of server power supply, and is used for solving the problem of high energy loss in a traditional alternating current power supply architecture. The power conversion module converts the power supply into high-voltage direct current with the voltage not lower than the preset voltage, the high-voltage direct current is transmitted to the power distribution board of the server through the bus copper bar, and the bus copper bar serves as a transmission medium of the high-voltage direct current and has low resistance and high current-carrying capacity. Extra loss caused by electromagnetic induction and a capacitance effect in alternating current transmission is avoided; high-voltage direct current is directly input to the power distribution board, so that multiple times of conversion in an intermediate link are avoided, and energy loss in the conversion process is reduced; and the power distribution board directly converts the high-voltage direct current into the voltage required by the load, so that the loss of multi-stage conversion in the traditional architecture is reduced. According to the invention, the power transmission efficiency is improved, the energy loss is reduced, and the requirement of a modern high-computing-power and high-energy-consumption server for efficient power supply is met.

The invention discloses an impact-resistant and distortion-resistant outdoor polyethylene power cable, and relates to the technical field of cables, the impact-resistant and distortion-resistant outdoor polyethylene power cable comprises a cable core, four annularly distributed wire cores are arranged in the cable core, each wire core is composed of an inner-layer conductor, an outer-layer conductor, a heat conduction enhancement layer, an inner enhancement layer and an inner insulation layer, a shielding combination layer is arranged outside a wrapping layer, and a shielding layer is arranged outside the wrapping layer. The shielding combination layer is composed of a high-conductivity metal thin film layer, a nanometer shielding layer and a protective coating, the anti-impact combination layer is arranged outside the shielding combination layer, the anti-impact combination layer is composed of an impact dispersion layer and an energy absorption layer, the anti-distortion combination layer is arranged outside the anti-impact combination layer, and the anti-distortion combination layer is composed of an impact dispersion layer and an energy absorption layer. The anti-distortion combination layer is composed of a core layer and an elastic buffer layer, an outer sheath is arranged outside the anti-distortion combination layer, and the outer sheath is composed of a reinforcing layer, a blocking layer and an outer protective layer, so that the problems that the power cable is poor in impact resistance and distortion resistance and inconvenient to maintain are solved.

The invention relates to a driving control circuit and a switching power supply, the driving control circuit comprises a current sampling circuit and a light-load wave sealing circuit, the current sampling circuit is electrically connected with the light-load wave sealing circuit, the current sampling circuit samples current flowing through a load to obtain sampling current, and when the sampling current is greater than a current threshold value, the light-load wave sealing circuit is electrically connected with the light-load wave sealing circuit; the light-load wave sealing circuit outputs a first control signal to enable the second group of switching tubes to work based on a received second driving signal, so that the switching power supply rapidly quits the light-load wave sealing state, the current-carrying capacity of the switching power supply is rapidly improved, and when the sampling current is smaller than or equal to a current threshold value, the switching power supply is switched off. And the light-load wave sealing circuit outputs a second control signal to drive the second group of switching tubes to stop working, so that the second group of switching tubes are ensured to be closed in a light-load state, the switching loss during light load is effectively reduced, and the light-load energy efficiency is improved.

The invention provides a pole, a cover plate assembly and a single battery, and relates to the technical field of batteries. The pole comprises a body, the body is provided with a first surface, and the first surface is provided with a tab welding groove; the tab welding groove is provided with a groove side wall, the groove side wall is configured to be in contact with the tab of the single battery, and the plane where the groove side wall is located gradually inclines towards the axis of the pole along the direction far away from the first surface. According to the scheme, the bending angle of the tab when the tab is in contact with the groove side wall can be reduced, so that obvious stress concentration at the bending part of the tab is avoided, and cracks and even fractures at the bending part of the tab can be effectively avoided. Therefore, the structural integrity of the tabs can be ensured, so that the current-carrying capacity of the tabs is improved, the overcurrent capacity between the tabs and the pole columns is improved, and the performance of the single battery can be further improved.

The invention discloses an electric pile type air mobile charging robot power dispatching system and method.The system comprises a charging robot, an electric pile, a distribution dispatching control unit, a direct-current bus and an electricity taking module, the direct-current bus is arranged along a suspension track, and the charging robot takes electricity from the direct-current bus through the electricity taking module; and the distribution scheduling control unit controls and distributes the power for each charging robot to take electricity from the direct-current bus according to a given power distribution rule. The invention relates to the field of new energy vehicle charging, an electric pile is used as an input source for centralized energy supply to a charging robot, and flexible scheduling distribution is performed on charging power through a centralized and unified scheduling strategy, so that the operation efficiency of a whole charging station and the utilization rate of charging resources can be greatly improved, and the charging experience of a user is improved. The application of the direct-current bus can also greatly reduce the diameter of a cable required by a power supply line deployed along the suspension track, and the cost is greatly reduced.

The invention relates to a degassing and tubing method for Bi-2212 precursor powder, and belongs to the technical field of powder tubing methods. The tubing method comprises the following steps: performing heat treatment on Bi-2212 precursor powder in air, naturally cooling, uniformly grinding, performing heat treatment in air, taking out, naturally cooling, and uniformly grinding to obtain powder I; then, the powder I is subjected to vacuum hot pressing sintering treatment and compressed into a bar; the bar is taken out under the condition of air isolation and is smashed and ground evenly, and powder II is obtained; and finally, the powder II is loaded into a silver tube under the vacuum condition through a vibration tube loading method, the two ends of the silver tube are sealed through silver plugs, and the Bi-2212 single-core rod is obtained. According to the method, the Bi-2212 precursor powder is subjected to hole-free treatment through a simple process, so that gas is prevented from remaining in particles, and then it can be guaranteed that impurity gas in a single-core rod or a single-core wire is greatly reduced after the precursor powder is filled into a tube.

The utility model provides a connector male seat, a connector female seat and a floating connector, and belongs to the technical field of connectors. The COB connector solves the problems that welding is difficult and the display effect is not ideal due to the fact that power signal pins and transmission signal pins of an existing COB connector are the same, the COB connector comprises a male seat body and a female seat body, two rows of contact pins are arranged on the male seat body, and the single row of contact pins on each side comprise contact pins of two power pins, contact pins of two grounding pins and contact pins of signal pins. The female seat body is provided with two rows of jacks, the single row of jacks at each side comprises jacks of two power supply pins, jacks of two grounding pins and jacks of signal pins, and the widths of the power supply pins and the grounding pins are greater than the width of the signal pins, so that the current bearing capacity of the floating connector is improved; the COB module is applied to the COB module.

The utility model discloses a low-voltage contact pin sheath structure, and relates to the technical field of low-voltage board end sockets, the low-voltage contact pin sheath structure comprises a PCB and a low-voltage contact pin protection assembly, the low-voltage contact pin protection assembly is connected to the top of the PCB, the PCB comprises a board body, the end face of the board body is provided with a contact pin mounting hole, four corners of the board body are respectively provided with a positioning hole, and the low-voltage contact pin protection assembly is connected to the bottom of the board body. According to the scheme, the low-voltage contact pin sheath structure is designed, the structural stability and the operation reliability of the board end connector are effectively improved, the rigidity of the contact pins is particularly improved, bending deformation possibly occurring in the using process is prevented, due to the design that the contact pins and the insulator are pre-fixed, the assembling process is simplified, installation is more rapid and convenient, and the cost is reduced. The gap design between the bottom of the insulator and the end face of the PCB prevents overflow of soldering tin, so that equipment damage possibly caused by short circuit is avoided, the fabrication holes ensure uniform wall thickness of the insulator, conditions are provided for forming of a mold, and the key effect on improving the overall quality of products and the machining efficiency is achieved.

The MOSFET packaging structure and its manufacturing method, circuit board assembly, and electronic device provided by the present application, the MOSFET packaging structure is formed by mounting the first surface of the MOSFET chip in the installation area of ​​the carrier chip, the interconnection distance between the MOSFET chip and the carrier chip is short, the parasitic inductance is small, and it is easy to achieve high-frequency drive. In addition, the MOSFET component is formed by mounting a conductive member on the second surface of the MOSFET chip, the input pad, the output pad, and the ground pad on the MOSFET chip are large current passing areas, and three conductive members are set to be electrically connected to the input pad, the output pad, and the ground pad respectively, and the large current passing area of ​​the MOSFET chip is interconnected with the circuit board through the conductive member, and the conductive member not only has a high current carrying capacity, but also can reduce the resistance of the interconnection, reduce the heat generation of the MOSFET chip, and the conductive member has a strong thermal conductivity, which can improve the heat dissipation performance of the MOSFET chip. In addition, the MOSFET component is directly mounted on the carrier chip to form the MOSFET packaging structure, and the packaging volume is small, which is conducive to the miniaturization of the MOSFET packaging structure.

The invention relates to a method for removing foreign gas from Bi-2212 precursor powder, which comprises the following steps: firstly, carrying out heat treatment and grinding on the Bi-2212 precursor powder in air, and then carrying out heat treatment and grinding to obtain powder; then pressing the powder into a uniform powder bar through a dry bag type cold isostatic pressing process; and then taking out the obtained powder bar under the condition of air isolation, putting the powder bar into a silver tube, and sealing the two ends of the silver tube by using silver plugs to obtain the Bi-2212 single-core bar. And performing rotary swaging and drawing on the Bi-2212 single-core rod to prepare the Bi-2212 single-core wire. According to the method, the Bi-2212 precursor powder is subjected to hole-free treatment through a simple process, so that gas is prevented from remaining in particles, and meanwhile, residual C and H elements are removed, so that impurity gas in a single-core rod or a single-core wire can be greatly reduced after the precursor powder is filled into a tube, and the current-carrying performance of the single-core rod or the single-core wire is improved.

The utility model discloses a small-size heavy-current golden finger connector, which comprises an insulating main body and a plurality of terminal sheets, the insulating main body is provided with a plurality of terminal mounting holes at intervals, the plurality of terminal sheets are respectively inserted into the terminal mounting holes to be fixed, and one end of each terminal sheet is provided with a plurality of contact pins at intervals. One end of each contact pin is bent towards one side surface of the terminal sheet to form an elastic contact arm, an included angle is formed between the elastic contact arm and the contact pin, and the end part of the elastic contact arm is bent to form an arc-shaped contact bulge. According to the double-row multi-contact design, the number of a single PIN is increased to eight, so that the circulating current is more than two times that of an original terminal, the current-carrying and voltage-resistant performance of the terminal is greatly improved, the terminal can be widely applied to a large-current connector, the current-carrying capability and vibration resistance of the large-current connector are improved, and accessories of all parts are simple in structure and low in cost. And large-scale production and assembly are facilitated.

The invention belongs to the technical field of cable manufacturing, and discloses a low-voltage cable and a manufacturing method thereof. The low-voltage cable comprises at least two wire cores, the at least two wire cores are mutually twisted, each wire core comprises a conductor, an insulating layer, a foaming buffer layer and a protective layer, the insulating layer wraps the conductor, the foaming buffer layer wraps the insulating layer, and air holes are formed in the foaming buffer layer; the protection layer wraps the foaming buffer layer and comprises an inner protection layer, a metal supporting net and an outer protection layer which are sequentially arranged from inside to outside. By arranging the conductors and the insulating layers, the basic functions of the cable can be realized. And the filling material is removed, and the at least two wire cores are mutually twisted, so that the heat dissipation performance is relatively good, and the current-carrying capacity is increased. When the cable is impacted or extruded, the foaming buffer layer with the air holes can effectively absorb external force and play a role in buffering, and the cable is light in weight and good in economical efficiency. When the cable is stretched, the inner protective layer, the metal supporting net and the outer protective layer act together, so that the tensile property is good.

The invention relates to the technical field of cables, and particularly discloses an environment-friendly polypropylene insulating flame-retardant medium-voltage cable which comprises a cable core and a protective structure layer arranged outside the cable core. The cable core is provided with three power insulation wire cores and three tensile wire cores which are twisted together, and a flame-retardant filling rope which is filled in a twisting gap of the three power insulation wire cores and the three tensile wire cores, and each tensile wire core is arranged at a twisting outer side gap of two adjacent power insulation wire cores; each power insulation wire core is composed of a conductor, and a conductor shielding layer, a polypropylene insulation layer, an insulation shielding layer, a shielding isolation layer, a metal shielding composite layer and a conductor core fireproof layer which are sequentially arranged outside the conductor from inside to outside. According to the invention, the medium-voltage cable formed based on the polypropylene insulating material effectively gives consideration to good tensile property and bending resistance, so that the convenience, flexibility and stability of the medium-voltage cable when the medium-voltage cable is used in a working condition environment are improved.

The invention discloses a bus connector and a power supply terminal with a cable. The bus connector includes a housing, two terminal sets, and a plurality of cables. The shell is provided with two vertical parts, and the two vertical parts are oppositely arranged and jointly form a plugging port. The two terminal groups are inserted into the shell, each terminal group comprises at least one power supply terminal, the at least one power supply terminal comprises a contact part, a fixing part and a crimping part, and the fixing part is connected between the contact part and the crimping part. The plurality of cables are arranged in a single row, and one end of each of the plurality of cables is fixedly connected to the crimping part. The crimping part is provided with a cross section, the cross section is perpendicular to the extension direction of the plurality of cables, and the length-width ratio of the cross section is larger than or equal to 3. Therefore, according to the bus connector, the heat dissipation efficiency is improved, and the current-carrying capacity is improved.

The invention relates to the technical field of connecting terminals, and discloses a charging seat current-carrying terminal structure and a manufacturing method thereof, the charging seat current-carrying terminal structure comprises a plurality of partial load cables, and two opposite ends of the partial load cables are provided with first connecting ports; the plurality of wiring terminals are provided with second connecting ports, and the second connecting ports are fixedly connected with the first connecting ports; the busbar is provided with a wiring end face part, one end, far away from the second connecting port, of each wiring terminal is also provided with a third connecting port, and the plurality of wiring terminals are fixedly connected with the wiring end face part of the busbar through the third connecting ports. By dispersing the conductive paths, the flexibility and shock resistance of the structure are remarkably improved, so that the electric automobile effectively absorbs vibration stress, the abrasion and loosening risks of the connecting ports and the plugging points are reduced, and the situation that the current-carrying component is bent to cause sudden change of resistance is effectively prevented.

The invention provides a connecting cable, a vehicle and vehicle charging equipment. The connecting cable comprises a cable structure and a flexible cooling pipe at least used for containing a cooling medium. The cable structure comprises a rigid conductor tube and a first insulating layer arranged on the peripheral side of the rigid conductor tube, and the rigid conductor tube is electrically connected between a power supply and a load; the flexible cooling pipe can extend into the rigid conductor pipe through one end of the rigid conductor pipe and is in heat conduction contact with the rigid conductor pipe; and the end part of the cable structure is provided with a fixing piece, and the fixing piece is used for fixing the flexible cooling pipe on the cable structure after the flexible cooling pipe extends into the rigid conductor pipe, so that the current-carrying capability of the connecting cable can be improved.

The present invention discloses a method for manufacturing a MEMS probe with a high aspect ratio, which comprises selecting porous anodized aluminum as a substrate material; performing photolithography on the substrate, coating photoresist and performing pattern development; performing etching in the nanopores of the substrate; performing electroplating in the etched grooves, stacking multiple layers of metal; performing CMP treatment on the top metal layer; removing the substrate to obtain a MEMS probe. The present invention etches the nanopores of the porous anodized aluminum into an electroplating mold, which can achieve a higher aspect ratio and a stronger mechanical structure, so that the MEMS probe can maintain its structural stability when a large needle pressure is applied, is not easy to deform or break, and ensures the accuracy and reliability of the test process.

The utility model discloses a high-temperature-resistant low-voltage cable which comprises a cable core and a sheath used for wrapping the cable core, the cable core comprises a plurality of wire cores and a plurality of heat dissipation pipes, and the heat dissipation pipes are arranged between the wire cores; the structure of the wire core is provided with a conductor, a first insulating layer and a second insulating layer in sequence from inside to outside, and the sheath is provided with a wrapping tape, a fireproof shielding layer, a heat insulation layer and an outer protection layer in sequence from inside to outside. The cable is reasonable in structural design, and has the following beneficial effects: the radiating tube is additionally arranged between the center of the cable core and the wire cores, and the wire cores are separated through the radiating tube, so that the wire cores can be prevented from being mutually extruded, and the service life of the wire cores is prolonged; and when the cable core works for a long time to generate heat, the cable core can be connected in the heat dissipation pipe by utilizing air exhaust equipment, so that the heat in the cable can be quickly discharged, the high-temperature resistance and the heat exchange capability of the cable core are improved, and the current-carrying capability of the cable is improved.

This utility model belongs to the field of power transmission and distribution engineering technology, specifically disclosing an overhead insulated conductor with a reinforced tensile structure. It includes an aluminum conductor, an insulating separator sleeve fitted over the aluminum conductor, an insulating separator sleeve fixedly connected to the outside of the insulating separator sleeve, and a galvanized copper conductor on the outside of the insulating separator sleeve. It also includes reinforcing ribs, fixing blocks, and an outer protective layer for the conductor. The reinforcing ribs are used to improve the tensile strength of the conductor; the fixing blocks are used to fix the internal structure of the conductor. The beneficial effect of this utility model is that by using a non-metallic aramid fiber reinforcing layer and a glass fiber inner protective layer to jointly bear the load, the mechanical tensile function and electrical conduction function of the conductor are separated. The main tensile force is borne by extremely high-strength, extremely lightweight synthetic fibers, enabling the conductor to have a tensile strength and fatigue resistance far exceeding that of traditional steel-cored aluminum stranded wires of the same diameter, while significantly reducing the self-weight of the conductor and the load on the tower.

This invention relates to a high-temperature superconducting cable, comprising: a metal skeleton, high-temperature superconducting tape, impregnated filler, a conductive metal layer, and a metal armor layer; a central cooling channel is provided in the center of the metal skeleton; the high-temperature superconducting tape is stacked into strands, with the entire strand spirally wound tightly against the metal skeleton; a conductive metal layer is wound around the outer side of the high-temperature superconducting tape, and a metal armor layer is also provided; the impregnated filler is filled into the gaps between each strand of the high-temperature superconducting tape using a vacuum pressure impregnation process. Compared with the prior art, in this invention, the high-temperature superconducting tape is stacked into strands and wound on the metal skeleton, and the neatly stacked tape is less susceptible to mechanical damage; there are gaps between the strands of the high-temperature superconducting tape, and the size of the gaps can be changed when the cable is bent, so the high-temperature superconducting tape is less likely to be damaged by excessive stress when the cable is bent; after the cable is bent, the gaps between the strands of the high-temperature superconducting tape can be filled by vacuum pressure impregnation, improving the thermal conductivity and mechanical strength of the cable.

This utility model relates to a staged melting battery connector for electrically connecting a battery cell and a cover plate. It includes a connector body made of conductive metal and at least one intermediate connecting segment. The connector body includes a first conductive portion, a second conductive portion, and an intermediate conductive portion connecting the first and second conductive portions. Each intermediate connecting segment is disposed between the first and second conductive portions, and both ends of each intermediate connecting segment are electrically connected to the first and second conductive portions, respectively. The cross-sectional areas of each intermediate connecting segment are unequal and all smaller than the cross-sectional area of ​​the intermediate conductive portion. The battery connector of this application has a high current-carrying capacity at normal operating temperature and effectively avoids additional heat generation caused by an excessively small current-carrying area. In the event of overcurrent due to faults such as short circuits, the intermediate connecting segments are melted sequentially until the intermediate conductive portion melts, while the overall melting speed still meets the requirement for rapid melting, improving equipment operating safety.

The utility model discloses an electric connection module, a connector and a connector assembly. The electrical connection module comprises: a housing having a pair of side walls and first and second elastic sheets respectively formed on the pair of side walls; a terminal rotatably mounted in the housing; the first electric connecting piece is provided with a first plate-shaped part, and the first plate-shaped part is inserted into the rear opening of the shell and is clamped between the first elastic sheet and one side of the rear end part of the terminal; and the second electric connecting piece is provided with a second plate-shaped part, and the second plate-shaped part is inserted into the rear opening of the shell and is clamped between the second elastic sheet and the other side of the rear end part of the terminal. A part of the first electrical connector and a part of the second electrical connector are located outside the shell and used for being electrically connected to the first electrical transmission piece and the second electrical transmission piece respectively, and the front end portion of the terminal extends out of the front opening of the shell and used for being in electrical contact with a matched terminal. According to the utility model, each terminal can be electrically connected to a plurality of electric transmission pieces at the same time, the application range is expanded, and the current-carrying capability and the heat dissipation performance of the terminal are improved.

The invention discloses a high-power connector with low resistance and high heat dissipation for quick connection, and relates to the field of connectors, the high-power connector comprises a support frame, reeds and busbar clamping bodies, the two busbar clamping bodies are assembled on the support frame, the busbar clamping bodies are integrally formed stamping parts, and the surfaces of the busbar clamping bodies are not provided with holes, so that the high-current passing capacity is ensured; a clamping space is formed between the two busbar clamping bodies, a reed is assembled between one end, far away from the clamping space, of each busbar clamping body and the supporting frame, a rear contact is formed at one end of each busbar clamping body, a front contact is formed at the other end of each busbar clamping body, and under the action of the reeds, the busbar clamping bodies are in contact with the supporting frame. The rear contacts of the two busbar clamping bodies are enabled to clamp the second busbar, the busbar clamping bodies are enabled to be unfolded by taking the rear contacts as rotating points, and the front contacts of the two busbar clamping bodies are enabled to clamp the first busbar, so that the problem of position errors of the first busbar and the second busbar caused by manufacturing tolerance or external reasons is solved, normal transmission of current is realized, and an abnormal interruption phenomenon is avoided.

The present invention discloses a cooling cable, comprising at least one first wire core, a first cooling layer wrapping the first wire core, and a rigid sheath sleeved on the periphery of the first cooling layer, the first cooling layer comprising a first cooling medium and a first pressure member, the first cooling medium is made of a plastic crystal, the first pressure member is made of a heat-shrinkable and cold-expandable material, the cooling cable is at room temperature, the heat-shrinkable and cold-expandable material is in an expanded state, and applies pressure to the plastic crystal to keep the molecules of the plastic crystal in an ordered state; when the temperature of the first wire core rises, the heat-shrinkable and cold-expandable material is in a contracted state, and the pressure applied by the heat-shrinkable and cold-expandable material on the plastic crystal is reduced, so that the plastic crystal transitions from an ordered state to a disordered state and absorbs heat, thereby reducing the temperature of the first wire core. According to the cooling cable disclosed in the present invention, the temperature of the first wire core is reduced, and the current-carrying capacity of the first wire core is improved; compared with liquid-cooled cables with circulating coolant, the structure is simple and easy to produce.

The utility model relates to the technical field of wire-to-board connectors, and discloses a small dustproof wire-to-board, which comprises a main body and a dustproof cover arranged on the main body, a wire harness A is arranged at the rear side of one side of the main body, a wire harness B is arranged at the rear side of one side of the main body, and the wire harness A and the wire harness B are horizontally arranged. The inner ends of the wire harness A and the wire harness B are provided with terminals, the structural size is small, more structural limitation requirements can be met, the current-carrying capacity is strong, 140A / Pin can be achieved, two types of left outgoing lines and right outgoing lines are provided for customers to select, the dustproof cover is designed, a certain protection function and a short circuit prevention effect are achieved, the wire harnesses are protected, separation is prevented, and the service life of the wire harness is prolonged. And the current-carrying capability and the stability are improved by using an ultrasonic welding technology.

The utility model relates to a high-voltage direct-current relay with a double-moving-contact-piece structure, which comprises a shell, an electromagnetic driving mechanism, a ceramic cover, two leading-out terminals and a moving contact piece assembly, the moving contact piece assembly comprises a driving frame, a driving contact piece, a driving contact spring, a driven contact piece, a driven contact spring and a lower short circuit ring, and the lower short circuit ring is arranged on the driving contact piece and the driven contact piece. The two leading-out terminals are provided with two circular static contact planes extending in the ceramic cover, and two ends of the driving contact piece are provided with two driving contact planes matched with the two circular static contact planes. The two ends of the driven contact piece are provided with two driven contact planes matched with the two circular static contact planes. The utility model has the advantages of simple structure, stable and reliable performance, small contact resistance and strong short-circuit current resistance.

The utility model discloses a control circuit board, which comprises a plurality of substrates arranged at intervals, at least two of the plurality of substrates are provided with power supply positive electrode laid copper and power supply negative electrode laid copper, at least two of the plurality of substrates are provided with a plurality of groups of three-phase output laid copper, and the three-phase output laid copper is connected with the power supply positive electrode laid copper and the power supply negative electrode laid copper. Each group of three-phase output laid copper is electrically connected with the power supply positive electrode laid copper and the power supply negative electrode laid copper, and the plurality of groups of three-phase output laid copper are electrically connected with the plurality of motors in a one-to-one correspondence manner. Therefore, a plurality of groups of three-phase output laid copper are arranged in the control circuit board and are electrically connected with the plurality of motors in a one-to-one correspondence manner, and each group of three-phase output laid copper is electrically connected with the power supply positive electrode laid copper and the power supply negative electrode laid copper, so that a group of power supplies can be shared by the plurality of motors on the control circuit board; at least two of the plurality of substrates are provided with a plurality of groups of three-phase output laid copper, so that the area of the three-phase output laid copper can be increased, the current-carrying capability of the control circuit board can be enhanced, and the problem of overlarge current of the control circuit board is solved.

The utility model discloses an aluminum electrolytic capacitor with high current-carrying capability, comprising a bearing unit which comprises an aluminum shell and a sealing cover fixedly connected to the bottom of the inner cavity of the aluminum shell, the bottom of the sealing cover is riveted with two guide pins penetrating through the sealing cover, the inner cavity of the aluminum shell is provided with a core package and an auxiliary unit, and the core package is provided with a plurality of through holes; the limiting structure comprises two limiting rings fixedly connected to the inner wall of the aluminum shell, the two limiting rings are arranged at the top and the bottom of a core package in a sleeving mode respectively, the side walls of the two limiting rings are each provided with a plurality of notches which are annularly distributed at equal intervals, and the inner walls of the two limiting rings are each provided with an intercepting face in a cutting mode. According to the utility model, the core cladding is inserted into the inner rings of the two limiting rings, so that the core cladding is bound by the limiting rings and is difficult to expand, thereby avoiding the increase of gaps among the anode foil, the cathode foil and the electrolytic paper, and enabling the capacitor to still maintain higher current-carrying capacity when the capacitor is used for a long time.

The invention provides an ion irradiation method for improving the performance of a copper-based superconducting strip, and belongs to the technical field of ion irradiation. The ion irradiation method comprises the following steps: carrying out ion irradiation on the copper-based superconducting tape by adopting an ion beam under a vacuum condition; the ion beam comprises a light ion beam or a heavy ion beam. By accurately controlling the energy, dosage and current intensity of the ion beam, effective modification of the copper-based superconducting strip is realized, the current-carrying performance of the 2G-HTS strip under high temperature and high field is remarkably improved, and the critical current density Jc is improved by 2.1-5 times. In addition, modification can be carried out according to the specific requirements of the copper-based superconducting strip, and then the consistency and stability of the modification effect are improved.