55 results about "Electrically short" patented technology

A thermosensitive wire includes a pair of conductive wires each covered with an insulator that softens at a preset temperature, and the pair of conductive wires are configured to come into contact with each other to be short-circuited in response to the insulator softening. A power supply system includes: a second power source configured to supply power to the pair of conductive wires; a short circuit detector configured to detect that the pair of conductive wires are short-circuited; a disconnection detector configured to detect that the pair of conductive wires are disconnected; and a controller configured to perform, for power supply to a power supply wire, abnormality control that differs between in the case where the short circuit detector detects that the pair of conductive wires are short-circuited and in the case where the disconnection detector detects that the pair of conductive wires are disconnected.

The invention discloses a charging pile with a multi-mode charging function, and particularly relates to the technical field of charging piles, the charging pile comprises a multi-mode charging pile, protective shells are fixedly installed outside charging gun bins on the two sides of the multi-mode charging pile, and the protective shells are arranged on the two sides of the multi-mode charging pile respectively; two mounting frames are fixedly mounted on the side, close to the multi-mode charging pile, of the protective shell, cable storage and standard wiring are achieved through cooperation of the protective shell and the telescopic corrugated pipe, the protective shell shields a cable body, the telescopic corrugated pipe wraps the exposed part, external environment erosion is doubly blocked, and the service life of the multi-mode charging pile is prolonged. The corrugated pipe can be flexibly adjusted along with stretching and retracting of the cable, the cable length requirements in different use scenes are met, the physical damage risk caused by long-term exposure of the cable is reduced, the safety of the charging process is guaranteed, potential safety hazards such as electric leakage and short circuit caused by cable damage can be reduced, and the system reliability is improved.

The invention relates to the technical field of ultra-wideband antennas, and discloses an ultra-wideband wide-angle scanning tight coupling antenna and array, and the antenna comprises an impedance matching layer, an antenna radiation layer, an antenna supporting layer and a metal floor which are stacked from top to bottom. The impedance matching layer comprises three layers of eccentric cross-shaped dielectric plates, and the first eccentric cross-shaped dielectric plate at the top layer and the second eccentric cross-shaped dielectric plate at the middle layer are provided with circular grooves at the intersection center position of the two groups of orthogonal dipoles; the antenna radiation layer is provided with two groups of orthogonally arranged unequal-width pentagonal dipoles; the antenna supporting layer is provided with two groups of feed short circuit columns and two groups of metal rib belts; and the metal floor is provided with a two-section stepped feed through hole. According to the invention, the scanning range is expanded under the condition of ensuring good matching.

Aspects disclosed include an integrated circuit (IC) package including two substrates and vertical interconnects coupling the two substrates, the vertical interconnects comprising a metal ball and metal pin combination to address an increased distance between substrates. The vertical interconnects are disposed in a mold layer between the two substrates. The mold layer also includes a die, a plurality of metal pins, and a plurality of metal balls coupled to the plurality of metal pins to form the vertical interconnects. Larger distances between the two substrates are desirable when a die's thickness is increased to increase thermal dissipation from the die. As an example, by utilizing a plurality of metal ball and pin combinations as vertical interconnects, larger distances between the two substrates may be advantageously achieved with reduced risk of electrical shorting between vertical interconnects and without compromising pitch between vertical interconnects.

The invention belongs to the technical field of energy storage systems, and particularly relates to a battery PACK and an energy storage system. The battery PACK comprises a battery management unit BMU and a plurality of battery cells, each battery cell is integrated with a wireless communication module, the battery management unit is also integrated with a wireless communication module, and each battery cell and the battery management unit BMU perform wireless communication by using the respective wireless communication module. The method has the advantages that hardware such as cables, connectors and wire ducts is omitted, and the cost advantage is remarkable especially in a large-scale system; when part of battery modules are offline due to faults or newly added modules are accessed, a wireless communication network can automatically reconstruct a topological structure to ensure the stability of a communication link, and a wired system needs to manually adjust the wiring topology; wireless communication does not need electrical connection, electrical isolation between the battery pack and the BMU is naturally achieved, and the risks of electric leakage and short circuit in a high-voltage system are reduced.

The invention provides a flexible direct-current transmission short-circuit current control strategy multi-objective optimization solving method, which specifically comprises the following steps of: 1, constructing a receiving end fault two-port model, and solving parallel fault transition impedance in a receiving end power grid fault model; step 2, in combination with parallel fault transition impedance, deriving a minimum reactive current reference value constraint required by AC voltage support in a fault period and an active current constraint allowed by DC side energy balance and DC voltage upper limit; and step 3, obtaining the short-circuit current safety domain under the three-phase short-circuit fault by combining the minimum reactive current required for reducing the voltage drop when the short-circuit fault occurs, the active current which can be provided by the receiving-end converter station MMC and the amplitude constraint condition of the short-circuit current output by the receiving-end converter station MMC. According to the invention, adaptive analysis and optimization are carried out on an existing short-circuit current control strategy, and it is ensured that the optimized control strategy not only can reduce unbalanced power accumulation, but also can be used for supporting alternating-current power grid voltage through reserved capacity.

This invention discloses an extrusion molding device for producing insulated cables, belonging to the technical field of cable production equipment. The proposed solution includes a base and a wire feeding mechanism located on one side of the top of the base for automatically feeding insulated cables. An extrusion molding mechanism is located on the top of the base. This invention not only ensures consistent insulation layer thickness and a smooth surface through the circumferential smoothing design of the scraper in the extrusion molding mechanism, effectively guaranteeing the insulation performance of the cable and reducing safety hazards such as leakage and short circuits caused by uneven insulation layer thickness, but also avoids waste of raw materials caused by unusable solidified residual insulation material through cleaning of the molding chamber's inner wall, reducing insulation material loss. Furthermore, the use of "circumferential spraying + water-cooled liquid circulation" can quickly reduce the insulation layer temperature to the setting temperature, preventing deformation and uneven shrinkage of the insulation layer due to slow cooling, further ensuring the appearance and structural stability of the cable.

This invention proposes a multi-objective optimization solution method for short-circuit current control strategy in flexible DC transmission, specifically including: Step 1, constructing a two-port model of the receiving-end fault and solving for the parallel fault transition impedance in the receiving-end grid fault model; Step 2, combining the parallel fault transition impedance, deriving the minimum reactive current reference value constraint required to support AC voltage during the fault, and the active current constraint allowed by the DC side energy balance and DC voltage upper limit; Step 3, combining the minimum reactive current required to reduce voltage drop during a short-circuit fault, the active current that the receiving-end converter station MMC can provide, and the short-circuit current amplitude constraint condition output by the receiving-end converter station MMC, obtaining the short-circuit current safety domain under three-phase short-circuit faults. This invention adaptively analyzes and optimizes existing short-circuit current control strategies, ensuring that the optimized control strategy can both reduce unbalanced power accumulation and support AC grid voltage through reserved capacity.

The application discloses a power supply management method of a storage system and electronic equipment, relates to the technical field of storage systems, and comprises the following steps: if the power supply state of a power supply unit of the storage system is an abnormal state, the fan rotating speed is reduced; if the power supply unit recovers to a normal state within a first preset time period after the abnormal state, if the power supply state of a hard disk module is an abnormal state, the enable signal of a voltage regulating power supply and the enable signal of a first electronic fuse of the hard disk module are reset, the power supply unit is used for supplying power for the storage system, and the fan rotating speed is recovered; the power supply unit supplies power for the voltage regulating power supply through the first electronic fuse; the voltage regulating power supply is configured in a power supply short-circuit abnormal permanent protection mode, and the first electronic fuse is configured in an overcurrent short-circuit abnormal self-locking permanent protection mode. The power supply link recovery mode in the related art reduces the reliability of the storage system, and the technical effect of improving the reliability of the storage system is achieved.

1. The name of the design product: air switch. 2. The use of the design product: used for closing, carrying and breaking circuit, and providing current leakage and short circuit protection for circuit. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

A substrate includes a core layer and one or more metallization layers. The core layer provides stabilization to the substrate to reduce or avoid warpage. The core layer may include a glass material weaved throughout the core to provide stabilization and avoid warpage. A metallization layer adjacent to the core layer in the substate includes an insulation layer and the embedded metal structure(s) that is positioned from the core layer. The thickness of the insulation layer is greater than the embedded metal structure so that a surface of the embedded metal structure is positioned at least at a length from the surface of the glass material. This can avoid or reduce the risk of the embedded metal structure electrically shorting to another metal structure in the substrate through the core layer.

To provide a piezoelectric actuator with a strain gauge capable of compensating the influence of temperature change.SOLUTION: A driving part 111 in which a plurality of piezoelectric ceramic layers 113 and a plurality of internal electrodes 115 and 116 are alternately stacked and which is driven when a voltage is applied to the internal electrodes 115 and 116, and a plurality of second piezoelectric ceramic layers 114 and a plurality of second internal electrodes 117 and 118 which are formed in series in a stacking direction of the driving part 111 and are alternately stacked, A piezoelectric actuator 100 includes a piezoelectric actuator body 105 including a non-driving portion 112 that is not driven even when a voltage is applied, a strain gauge 131 that is connected to a driving portion 111 and detects strain in a displacement direction of the driving portion 111, and a second strain gauge 132 that is connected to the non-driving portion 112 and detects strain in the displacement direction of the non-driving portion 112, in which a second piezoelectric ceramic layer 114 is polarized, and second internal electrodes 117 and 118 are electrically short-circuited.SELECTED DRAWING: Figure 1

The invention provides a strong and weak current automatic plugging connection device, which comprises a frame, a floating device, an explosion-proof connector, a guide pin and an explosion-proof junction box, and is characterized in that the floating device is mounted at the top end of the frame; the anti-explosion connector is installed in the middle of the front face of the floating device, and the guide pins are symmetrically installed on the two sides of the anti-explosion connector. And the explosion-proof junction box is arranged on the side surface of the frame. According to the device, through automatic accurate control, the connection reliability is improved, the device is suitable for various complex assembling scenes and narrow operation spaces, and the problems that traditional manual plugging is low in positioning precision and unstable in force control, contact pins are prone to being damaged or poor in contact, strong current short circuit is caused, and weak current signals are lost are effectively solved.

1. The name of the design product: underground cable tracer (NF-829). 2. The use of the design product: for detecting the direction of underground cable, power failure, short circuit point. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: kit 1 perspective view 1. 5. Kit description: kit 1 is a detection signal transmitter, and kit 2 is a detection signal receiver.

The application discloses a three-dimensional implantable MIMO antenna for biological telemetry, which is suitable for capsule endoscopy and leadless pacemaker. The system is composed of four antenna units, each unit including a radiation patch, a ground plane, a feed port and a short circuit structure. The symmetric topology of the radiation patch and the strategic layout of the feed / short circuit needles realize self-decoupling, which can effectively reduce the mutual coupling without external decoupling elements. The antenna can work stably at 1.3975 GHz and 2.45 GHz frequency bands, and keep good reflection coefficient, gain and radiation pattern under different tissue environments and implantation depth changes. SAR evaluation shows that it meets the IEEE C95.1-2019 standard, ensuring safety. The three-dimensional structure provides multi-directional radiation diversity, realizing isotropic coverage and robust communication. High-speed telemetry experiments show that it can support up to 100 Mbps data transmission within 10-15 m, which is suitable for complex environments such as continuous motion, attitude change and deep implantation, realizing robust communication and efficient energy transmission.

This utility model discloses an indoor power distribution cable wall-penetrating protective installation device, relating to the field of wire installation technology. The device includes a first protective arc plate and a second protective arc plate. The first protective arc plate is hinged to the second protective arc plate. The second protective arc plate has a fixing structure and an adjustment structure, which is located on the first protective arc plate. This device, through the first and second protective arc plates and the first and second telescopic arc plates, forms a complete circular tube structure, completely enclosing the wall-penetrating cable and isolating it from the sharp edges of the wall. Even with long-term use, it effectively protects the cable insulation layer, preventing dangerous situations such as leakage and short circuits. The protective sleeve is fixed by gaskets and locking nuts, allowing for flexible adjustment of the overall length of the protective device to ensure a tight fit to walls of different thicknesses, further improving the ease of installation.

Some implementations include an apparatus configured to, in a wellbore, eliminate voltage on one or more first conductors that are electrically connected to a surface-based power source. The apparatus may include a shorting ring electrically connectable to the first conductors and configured to electrically short the first conductors upon establishing an electrical connection with the first conductors. The apparatus may include a solenoid assembly to actuate in response to power on the first conductors from the surface-based power source. The apparatus may include a pin slider assembly connected to the first conductors and configured to move, in response to actuation by the solenoid assembly, between an electrical connection with the shorting ring and an electrical connection with one or more second conductors that have an electrical connection with a permanent magnet motor winding in the wellbore.

A memory device includes an alternating stack of insulating layers and electrically conductive layers that laterally extends along a first horizontal direction, memory opening fill structures vertically extending through the alternating stack, and integrated line- and -via structures. Each of the integrated line- and -via structures includes a respective conductive plate portion and a respective conductive via portion. In one embodiment, the conductive via portions of the integrated line- and -via structures may include N-types of conductive via portions having N different top surface area values. In another embodiment, conductive plate portions of the integrated line- and -via structures may have a substantially rectangular horizontal cross-sectional shape. A dielectric wall structure or multiple rows of dielectric pillar structures may be provided to suppress electrical shorts between the conductive plate portions and electrically conductive strips of adjacent electrically conductive layers.

According to an example aspect of the present invention, there is provided an antenna array arranged to control a radar response of a target, comprising multiple ultra wideband antennas, wherein each of said multiple antennas is coupled to a separate switch, and each switch is arranged to control one of said multiple antennas such that when said one antenna is connected to a load, preferably matched load, said one antenna acts as an absorber, and when said one antenna is electrically shorted, said one antenna acts as a reflector, wherein at least one of said multiple antennas is arranged to be electrically shorted at a first time instant and the at least one of said multiple antennas is arranged to be connected to a load, preferably matched load, at a second time instant, and at least one other of said multiple antennas is arranged to be connected to a load, preferably matched load, at the first time instant and the at least one other of said multiple antennas is arranged to be electrically shorted at the second time instant.

The utility model discloses a novel installation structure transformer bushing which comprises a porcelain bottle and a conducting rod arranged on the inner side of the middle of the porcelain bottle, the tail end of the upper side of the conducting rod is provided with a wiring terminal, the tail end of the lower side of the conducting rod is provided with a connecting nut, and the joint of the porcelain bottle and the tail end of the lower side of the conducting rod is provided with an American transformer flange. The bushing can automatically release overhigh air pressure in the bushing through an automatic deflation function, prevents a porcelain bottle from being broken due to overhigh pressure, avoids possible safety accidents such as electric leakage and short circuit, protects the safety of equipment and personnel, can adjust the internal pressure in time, can reduce the equipment fault probability caused by the pressure problem, and improves the working efficiency. According to the utility model, the operation of the transformer bushing is more stable and reliable, the continuity of power transmission is ensured, the damage of abnormal pressure to porcelain bottles and other parts is avoided, the service lives of the transformer bushing and the whole transformer equipment are prolonged, and the maintenance and replacement cost of the equipment is reduced.

An integrated circuit (IC) package has a ferrite-dielectric shield layer between a planar inductor coil and a semiconductor chip. The shield layer blocks electromagnetic interference (EMI) generated by current in the inductor coil from reaching the semiconductor chip. The shield layer has a ferrite layer surrounded by upper and lower dielectric layers to prevent electrical shorting. A center terminal of the inductor coil is connected to the semiconductor chip through a center post that passes through an opening in the shield layer over the center of the inductor coil air core. The center post can be connected to a chip mount pad on which the semiconductor chip is mounted. Wire bonds connect pads on the semiconductor chip to lead frame pads on lead frame posts whose distal ends are external package connectors. The outer terminals of the inductor coil are connected to lead frame outer posts that also have external package connectors, such as pins or solder balls.

A superconducting connecting system includes an anti-fuse structure. There is a first superconducting trace having a first segment that is cantilevered over a cavity a substrate. A second superconducting trace having a second segment is cantilevered over the cavity in the substrate. A first auxiliary segment is coupled to the first segment and suspended over the cavity. A second auxiliary segment is coupled to the second segment and suspended over the cavity. The first segment and the second segment face each other and have a predetermined gap therebetween. The first segment and the second segment are configured to receive an output of a laser. An amount of material of the first and second auxiliary segment is based on creating a fuse ball joint that provides an electrical short between the first superconducting trace and the second superconducting trace, upon receiving the output of the laser.

The utility model discloses a multilayer structure graphene heat dissipation film, which relates to the technical field of graphene heat dissipation films and comprises a heat dissipation film body, and the top of the heat dissipation film body is provided with an insulating heat-resistant assembly. According to the utility model, through the arrangement of the insulating heat-resistant assembly, the effects of preventing electric leakage and short circuit of the graphene heat dissipation film and enabling the heat resistance of the graphene heat dissipation film to be higher can be achieved, and the problems that the heat dissipation film is in contact with lines or elements with different potentials due to the fact that the heat dissipation film cannot be prevented from short circuit and electric leakage, current is possibly conducted abnormally, and short circuit is caused can be avoided; when a human body is in contact with the graphene heat dissipation film, the heat dissipation film is electrified, and an electric shock accident is easily caused, so that the insulativity of the graphene heat dissipation film is ensured, and the heat dissipation effect of the graphene heat dissipation film is improved. And meanwhile, the first insulating adhesive coating and the second insulating adhesive coating can achieve the damping and buffering effects, so that the safety of the graphene heat dissipation film is improved.

The utility model relates to the technical field of cable terminal heads, in particular to a cable terminal head with an insulating sheath, which comprises a cable terminal head body, a detachable insulating sheath is arranged outside the cable terminal head body, one side of the insulating sheath is provided with an embedded groove, the other side of the insulating sheath is provided with a clamping block, and the clamping block is connected with the embedded groove. The clamping block is connected with the embedded groove in a clamping mode, and a notch is formed in the insulation sleeve. The cable terminal head is provided with the insulation sleeve, comprehensive insulation protection is provided for the cable terminal head through the design of a multi-layer insulation structure in the insulation sleeve, current leakage is effectively prevented, risks of electric leakage, short circuit and other electrical faults caused by poor insulation performance are reduced, and the insulation sleeve can be firmly fixed on the cable terminal head body. The connection tightness and stability between the insulation sleeve and the cable terminal head body are ensured, the insulation structure is ensured not to be damaged by external force, and the long-term effectiveness of the insulation performance is further ensured.

The invention belongs to the technical field of antennas, and relates to a four-arm helical antenna phased array, which is realized by using a low-temperature co-fired ceramic process, and comprises a plurality of antenna array elements, the plurality of antenna array elements are arranged in a rectangular array mode, and each antenna array element comprises an input coaxial structure, an antenna feed network structure and an antenna radiation structure, the input coaxial structure receives an external coaxial feed signal and transmits the external coaxial feed signal to the antenna feed network structure, the antenna feed network structure divides an input signal into four paths of circularly polarized output with the difference of 90 degrees, and the antenna radiation structure receives the circularly polarized output and generates circularly polarized radiation. Through combination of innovative designs such as a chain type structure, sequential rotation feeding, short circuit terminal optimization and an isolation assembly, the requirements of miniaturization and high integration level are met, the circular polarization characteristic and array expandability are improved, inter-unit coupling and array complexity can be reduced, and the antenna performance is improved. And the stable performance and the manufacturing consistency of the large array under the conditions of broadband and high scanning angle are ensured.

The utility model discloses a novel bottom box structure, relates to the technical field of office wiring, and aims to solve the problem of unreasonable wiring under a table in an office area, the novel bottom box structure comprises a rear plate with two long edges and two short edges, one long edge of the rear plate is hinged with one long edge of a bottom wire passing plate, and the other long edge of the rear plate is hinged with one short edge of the bottom wire passing plate. The other long edge of the bottom wire passing plate is hinged to a front plate, the two short edges of the rear plate are respectively hinged to a side surface wire passing plate, the front plate and the rear plate are provided with placing plate mounting grooves, and placing plates are connected in the placing plate mounting grooves, so that the problem of station wiring is solved, the utilization of the desktop space is optimized, and the working efficiency is improved. In addition, the table has a quick-assembly function, safety risks such as electric leakage and short circuit caused by the fact that wires are exposed outside are reduced, the table can be expanded and assembled according to user requirements, the maintenance difficulty can be reduced, and the practicability can be improved.

The application discloses a charging pile with multi-mode charging function, and particularly relates to the technical field of charging piles, which comprises a multi-mode charging pile, the outer part of charging gun warehouses on the two sides of the multi-mode charging pile is fixedly installed with protective shells, the two sides of the multi-mode charging pile are respectively provided with protective shells, two mounting racks are fixedly installed on the side of the protective shell close to the multi-mode charging pile, the cooperation of the protective shell and the telescopic bellows realizes the storage and standard wiring of the cable, the protective shell shields the cable body, the telescopic bellows wraps the exposed part, the double barriers prevent the external environment from eroding, the bellows can be flexibly adjusted along with the stretching and retraction of the cable, the length requirement of the cable in different use scenarios is met, the physical damage risk of the cable caused by long-term exposure is reduced, and the safety of the charging process is ensured, so that the safety hidden danger such as electric leakage and short circuit caused by the damage of the cable can be reduced, and the system reliability is improved.

The utility model relates to a microwave oven safety protection device based on an acceleration sensor, which comprises the acceleration sensor, a main controller, a power supply module and an alarm, the acceleration sensor is arranged on a shell of a microwave oven, and a signal output end of the acceleration sensor is electrically connected with a data transmission pin of the main controller. A power supply pin of the main controller is connected with the power supply module, a filter capacitor is arranged between a grounding pin of the main controller and a grounding end, and an interruption pin of the main controller is in electric signal connection with the alarm. According to the microwave oven, the acceleration sensor is arranged on the shell of the microwave oven, the acceleration of the microwave oven in all directions can be detected through the acceleration sensor, the inclination angle of the microwave oven is calculated through the main controller, and if the inclination angle is larger than a set threshold value, the alarm gives an alarm, preferably voice alarm. A user can adjust the angle of the microwave oven in time, the microwave oven is prevented from being used in an inclined state, a shell of the microwave oven is prevented from deforming or internal parts are prevented from being damaged, and risks such as electric leakage and short circuit are avoided.

The utility model discloses a data acquisition instrument, and belongs to the technical field of data acquisition instruments, the data acquisition instrument comprises an acquisition instrument body, the acquisition instrument body comprises a shell, a limiting assembly and a cover plate, the shell is arranged on the acquisition instrument body, one side of the shell is provided with an opening, the shell is internally provided with an annular pressing plate, and the annular pressing plate is provided with a plurality of check curtains; the limiting assembly is close to the opening. The cover plate is detachably installed on the shell. According to the utility model, in the use process, a worker only needs to push aside the check curtains at the corresponding interfaces, so that the connection between the joints and the interfaces can be realized, the check curtains are prevented from being blocked by cables and being accumulated and blocked, the interfaces which are not connected with wires can be effectively shielded, and the use reliability and the protection effect are improved; through the limiting assembly, joint loosening caused by large-amplitude random shaking of the cable is effectively avoided, the wiring stability and the data transmission accuracy are improved, the occurrence probability of electric leakage, short circuit and other electrical accidents is reduced, and the use safety is improved.

1. The name of the design product: leakage short circuit detector. 2. The use of the design product: instrument for line leakage short circuit detection. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.