6653 results about "Power cord" patented technology

The invention relates to the technical field of fire early warning, in particular to an electrical fire early warning method, device and equipment based on leakage current temperature detection. The method comprises the following steps: acquiring information data of electrical equipment; performing electrical equipment power line position positioning on the electrical equipment information data to generate electrical equipment power line position information data; performing leakage current sensor data acquisition on the electrical equipment power line position information data to obtain standard electrical equipment leakage current monitoring data; and performing maximum fluctuation curve segment confirmation on the leakage current monitoring data of the standard electrical equipment to obtain a maximum fluctuation curve of the leakage current of the electrical equipment. According to the invention, by introducing leakage current fluctuation mode identification, accurate power line positioning, intelligent anomaly detection and heat map analysis, the accuracy, response speed and positioning capability of the electrical fire early warning system are improved.

A multi-phase LLC resonant converter circuit (10) includes: first to third LLC resonant converters each including a series circuit (S1 to S3) of a first switch and a second switch that are connected in parallel to a DC power supply, a high-frequency transformer (T1 to T3) including a primary-side winding and a secondary-side winding, a resonant circuit including a resonant reactor (Lr1 to Lr3) connected between a connection point of the first switch and the second switch and one end of the primary-side winding, a resonant capacitor (Cr1 to Cr3) in which one end is connected to the other end of the primary-side winding, and a divided resonant capacitor (Cn1 to Cn3) in which one end is connected to a connection point of the primary-side winding and the resonant capacitor; a first neutral line (N1) that connects the other end of the resonant capacitor; a neutral line reactor (Ln) connected between the first neutral line and a power supply line of the DC power supply; and a second neutral line (N2) that connects the other end of the divided resonant capacitor.

The invention relates to the technical field of filters, in particular to an internal shielding component of a power filter, which comprises a shell, a cover plate is mounted at the top of the shell through a cross recessed countersunk head screw, and a metal partition plate is arranged on one side of the inner wall of the shell; the wave-proof sleeve is welded on one side wall of the shell, and the material of the wave-proof sleeve is light nickel-plated copper fabric; when the power supply filter is used, the problem that crosstalk coupling is formed between interference signals can be prevented, the electromagnetic compatibility in the signal transmission process between systems is solved, the anti-wave sleeve is adopted for shielding power supply input of the power supply filter, interference of an input cable on other signals is greatly restrained, and the service life of the power supply filter is prolonged. The electromagnetic compatibility problem of the whole system caused by the fact that high-frequency noise is coupled to a power line is prevented, the shielding effectiveness is improved, the problem of filtering post-stage electromagnetic interference signals is greatly restrained, meanwhile, the heat dissipation area is increased, and the heat dissipation efficiency and effect are improved.

The present disclosure belongs to the technical field of lamps, in particular to a decorative lamp assisting in hanging and positioning. The decorative lamp assisting in hanging and positioning includes a lamp holder and a lamp bulb electrically connected with the lamp holder, and also includes a wire holder and a main power cord. The main power cord passes through the wire holder from one end of the wire holder to the other end of the wire holder, and the main power cord is electrically connected with the lamp holder. A hanging hole is formed in the top of the wire holder in a first direction, an assistance hole is formed in the top of the wire holder in a second direction, and a central axis of the assistance hole is parallel to the main power cord transversely passing through the lamp holder.

The invention discloses a body dryer which comprises a shell, a first circuit board and two air channels are connected in the shell, the air channels are located on the side face of the first circuit board, air inlets are formed in the front end and the rear end of the shell, the two air inlets are communicated with one ends of the two air channels respectively, two assembly openings matched with the other ends of the two air channels respectively are formed in the shell, and the two assembly openings are communicated with the first circuit board. The two assembly ports are located at the two ends of the same side wall of the shell respectively, the other end of the air channel is connected with the corresponding assembly port in a sealed mode and provided with a plurality of air outlets, and a filter, a motor, a main control board and a heater are connected into the air channel and sequentially distributed from the end, communicated with the air inlet, of the air channel to the other end of the air channel. The main control board is electrically connected with the motor, the heater and the first circuit board, and a touch panel and a power line which are electrically connected with the first circuit board are arranged outside the shell. The drying device has the beneficial effects that the drying speed is increased while the air volume is increased.

A method of generating a coupling gate between qubits and a superconducting integrated circuit providing a pulse source are discussed. The method includes energizing a power line connected to a pulse source, applying a signal to a control line in communication with a coupler, the coupler in communication between the two qubits, and applying a second signal to a control line in communication with a resonator. The method further includes inducing a tone on a transmission line that selectively communicates with the resonator to bias the resonator, the resonator coupling a signal to the pulse source in combination with the power line, and applying a third signal to a pulse source control line in communication with the pulse source, the pulse source applying a pulse to the coupler in response to the third signal to couple the two qubits for a duration of the coupling gate.

The invention relates to the field of cables, and discloses a compression-resistant high-temperature-resistant easy-heat-dissipation new energy automobile charging cable, which sequentially comprises a belting layer, a copper wire braided total shielding layer and an outer sheath layer from inside to outside, and is characterized in that three power wire cores, a ground wire cable core, two signal control wire cores and two auxiliary power wire cores are arranged in the belting layer; each power wire core comprises a conductor and an insulating layer extruded on the outer surface of the conductor, and the outer sheath layer comprises the following raw materials in parts by weight: 70-90 parts of PVC resin, 20-30 parts of a polyurethane thermoplastic elastomer, 10-15 parts of a modified additive, 2-5 parts of a hyperbranched flame retardant, 5-10 parts of a plasticizer, 4-7 parts of a stabilizer and 1-3 parts of a lubricant. The material is endowed with excellent mechanical properties, flame retardancy, thermo-oxidative aging resistance and heat resistance.

The present disclosure provides a separable power strip, and the separable power strip includes a main body connected to a power via a power line and including: a first housing including a first contacting wall and a first peripheral side wall surrounding the first contacting wall, the first contacting wall and the first peripheral side wall defining a first receiving cavity; a first socket interface located in the first contacting wall; and a first electrical outlet assembly connected to the first socket interface and the power line, and received in the receiving cavity; and a separable member separably and electrically coupled to the main body and including: a second housing including a second contacting wall; a second socket interface having a different interface type with the first socket interface; and a conducting pin electrically coupled to the second socket interface and located in the second contacting wall

A waterproof outdoor lamp easy to assemble and an assembling method thereof are provided. The waterproof outdoor lamp easy to assemble includes a power cord, a lamp holder, an inner plug, a light source, two upper rivets, two lower rivets, and a light bulb. The lamp holder includes a cord connecting portion and an inner plug accommodating portion, the cord connecting portion and the inner plug accommodating portion are integrally injection-molded on the power cord. An inner plug limiting protrusion is disposed on an upper end surface of the inner plug, an inner plug limiting groove is defined on the inner threads of the inner plug accommodating portion, the inner plug limiting protrusion is clamped in the inner plug limiting groove. Compared with conventional outdoor lamps, the waterproof outdoor lamp easy to assemble has better waterproof performance and is also simpler in structure.

This power cable monitoring system includes: a power cable including a power transmission cable provided at an inner circumferential part, an armoring wire provided at an outer circumferential part, and sensor ropes having an optical fiber to detect a physical quantity of a measurement target; and a backscattering light measurement device which measures distribution of the physical quantity of the measurement target, using backscattering light from the optical fiber, wherein distribution of temperature and strain of the power cable is obtained from a frequency shift signal of Rayleigh backscattering light obtained by the backscattering light measurement device on the basis of a signal detected by the sensor ropes, and a polarization distribution signal obtained from the Rayleigh backscattering light.

Provided is a display apparatus including a substrate having an island and a plurality of connection parts extending in different directions from an end of the island and connected to different islands; a display region disposed on the island and including a display element connected to a common electrode; a common voltage power line disposed on the island and on at least one first connection part of the plurality of connection parts extending from the island; and at least one contact portion disposed on the at least one first connection part, wherein the at least contact portion is connected to the common electrode and the common voltage line.

A lighting apparatus includes a driver module, multiple light source modules and a unified fastener. The driver module includes a driver circuit and a driver housing. The driver circuit converts an external power source to multiple driving currents. Each light source module has a light source and a light housing. The light housing encloses the light source and provides a light opening for a light of the light source to pass through. Each light source has a power wire. The power wires of the light sources have multiple wire ends coupled to the unified fastener to receive the driving currents of the driver circuit.

The invention provides a tumor electric field treatment system and an electrode slice temperature detection method, the system comprises an electrode slice and a controller, the electrode slice comprises a plurality of electrode units and a plurality of temperature detection units, the plurality of temperature detection units are divided into a plurality of row groups and a plurality of column groups, the grounding ends of the temperature detection units in each row group are jointly connected to the same grounding wire, and the signal ends of the temperature detection units in each column group are connected to the same dual-purpose signal wire after being in short circuit with the corresponding electrode units; when the dual-purpose signal line is connected to the temperature sampling point, the grounding wires are sequentially conducted, so that temperature detection signals detected by the temperature detection units are sampled based on the temperature sampling point; when the dual-purpose signal line is connected to the alternating power line, alternating electric signals are transmitted to the electrode units. In this way, a plurality of electrode units can be zoned and controlled using fewer conductive traces.

According to one embodiment, a strain detection device includes a sheet base material, a plurality of strain gauges arranged in a first direction on the sheet base material, a plurality of power supply lines and a plurality of first signal lines each connected to one end of a respective one of the plurality of strain gauges, and a plurality of ground lines and a plurality of second signal lines each connected to an other end of a respective one of the plurality of strain gauges, and a dummy pattern provided on the sheet base material and located between two of the plurality of strain gauges adjacent to each other in the first direction.

A case body has a first opening that is open along a first direction and through which an inverter device is insertable, a surrounding wall portion disposed along the first direction so as to surround the first opening, and a second opening that is formed in the surrounding wall portion and through which a power cable is insertable. A cover member is fixed to the surrounding wall portion by a plurality of fastening members disposed away from each other along an opening edge of the first opening so as to cover the first opening. A second opening width in a direction orthogonal to the first direction is smaller than an opening width of the second opening in the first direction, and a pair of the fastening members is disposed on both sides across the second opening.

The invention discloses a command vehicle rack-mounted power supply management system, and the system comprises a power supply filtering module which carries out the filtering of power supply input, and removes the high-frequency electromagnetic interference possibly carried by a power line; the electromagnetic shielding module is used for shielding electromagnetic radiation inside and outside the system; the grounding management module is used for providing a unified grounding point of the system and ensuring that all electrical connections have the same potential so as to reduce electromagnetic interference generated by the difference of the grounding point; the signal transmission optimization module is used for ensuring that signal transmission channels inside and outside the system are not influenced by electromagnetic interference; the electromagnetic interference suppression module is used for suppressing transient high-frequency interference generated in the system; and the environment monitoring and feedback module is used for monitoring electromagnetic environments inside and outside the rack in real time and automatically adjusting an EMC protection strategy of the system according to monitoring data so as to adapt to different working conditions. The command vehicle can adapt to a complex electromagnetic environment and ensure stable operation of equipment in the command vehicle.

The invention provides an electrode plate and a tumor electric field treatment system, the electrode plate comprises a plurality of electrode units and a plurality of temperature detection units, the plurality of temperature detection units are divided into a plurality of row groups and a plurality of column groups, and the grounding ends of the temperature detection units in each row group are connected to a grounding pin through a control switch. The signal end of each temperature detection unit in each column group is connected to a bidirectional change-over switch through a dual-purpose signal line after being respectively in short circuit with the corresponding electrode unit; when the dual-purpose signal lines are connected to the temperature sampling points, temperature detection signals detected by the corresponding temperature detection units in the corresponding column groups are respectively sampled based on the temperature sampling points by configuring the on-off states of the control switches; when the dual-purpose signal lines are connected to the alternating power lines, alternating electric signals are applied to the electrode units in the corresponding column groups based on the alternating power lines. In this way, a plurality of electrode units can be zoned and controlled using fewer conductive traces.

The invention relates to the technical field of energy storage equipment, and discloses movable energy storage equipment based on a construction site, the movable energy storage equipment comprises a box body and a movable seat, an inclination angle adjusting assembly is arranged between the box body and the movable seat, the posture of the box body is sensed in real time through a gyroscope, a threaded rod is driven to adjust the supporting height, and the diagonal deformation of the box body is controlled to be smaller than or equal to 5 mm; a sliding groove and a connecting rod linkage mechanism are arranged in an installation barrel on the outer wall of the box body, a motor is matched to drive a rotating frame to achieve automatic winding and unwinding of a power line, cables are prevented from being scattered and damaged, a sensor set is arranged in the box body, temperature excursion and vibration interference are eliminated through a dynamic compensation algorithm, and the net weight is calculated and calibrated in real time. And electrolyte leakage or structural damage is judged in combination with leakage current monitoring. The problems that box deformation is out of control, cable management is disordered and hidden danger recognition is lagged under the complex terrain are solved, and the safety and reliability of equipment are improved.

The invention provides a power line damage protection device, which comprises a power supply connecting plug, a power line and a power line damage protection unit, and is characterized in that the power supply connecting plug comprises a shell, a tripping mechanism, a live wire insertion piece, a zero line insertion piece, a grounding insertion piece and a circuit board; the power line damage protection unit comprises a tripping mechanism driving circuit and an electric leakage detection circuit. The power line comprises a live wire core wire, a zero wire core wire, a ground wire core wire, an insulating layer, an insulating sheath and an electric leakage detection layer, and the insulating layer of the live wire core wire and the insulating layer of the zero wire core wire are coated with the electric leakage detection layer; when the electric leakage detection layer breaks down, current triggers a silicon controlled rectifier Q1 in the tripping mechanism driving circuit to be conducted through the electric leakage detection layer and drives a tripping mechanism in the power supply connecting plug to cut off electric connection between a power supply and a load in time, so that electricity utilization safety is ensured, and the fire risk is reduced.

The utility model relates to the technical field of power line plugs, and discloses a power line plug with a bending protection function, which comprises a plug, the surface of the plug is connected with a cable, the two sides of the plug are provided with protection assemblies, each protection assembly comprises a first protection cover, the first protection cover is arranged above the plug, and the second protection cover is arranged above the plug. According to the power line plug with the bending protection function, through the arrangement of the protection assembly, the plug is placed between the first protection cover and the second protection cover, the clamping blocks enter the clamping grooves, the first protection cover and the second protection cover can be stabilized, and the power line plug with the bending protection function is convenient to use. The first protective cover and the second protective cover wrap the plug and the cable, the safety problems of power leakage, short circuit, electric fire and the like caused by bending of a connecting point between the plug and the cable are avoided, and when separation is needed, the rotary knob is rotated to enable the clamping block to be separated from the clamping groove, and separation can be carried out.

A kitchen appliance includes a body, a power cord extending outward from the body, and a cord holder configured to receive the power cord via wrapping of the power cord about the cord holder. The cord holder is operable between an attached condition and a detached condition. In the attached condition, the cord holder is attached to the body via magnetic attraction. In the detached condition, the cord holder is detached from the body.

A display device includes: a substrate including a display area and a peripheral area positioned outside the display area; a first power supply line positioned in the peripheral area; a first insulating layer positioned on the first power supply line; and a second power supply line positioned on the first insulating layer in the peripheral area. The first power supply line includes a first main wire extending in a first direction and a first sub-wire diverging toward the display area from the first main wire, the second power supply line includes a second main wire extending in the first direction and a second sub-wire diverging toward the display area from the second main wire, the first main wire includes an internal edge positioned near the first sub-wire and an external edge facing the internal edge, and the second main wire does not overlap the internal edge in a plan view.

A leakage current detection and interruption device for a power cord includes a switch module that controls an electrical connection of first and second power supply lines because input and output ends; a leakage current detection module, including first and second leakage current detection lines, which respectively detect leakage current signals on the first and second power supply lines and generate self-test fault signals in response to the first and second leakage current detection lines having an open circuit; and a drive module including at least one solenoid, a first semiconductor device forming a first current path from the first to the second power supply line when conductive, and a second semiconductor device forming a second current path from the second to the first power supply line when conductive, to supply current to the solenoid which in turn drives the switch module to disconnect the electrical connection.

The invention relates to the technical field of electric appliance installation connectors, in particular to a convenient installation device which comprises a plug used for being connected with an external electric appliance and a socket used for being connected with an external power circuit, the plug is detachably connected with the socket, and the plug is used for being electrically connected with the socket, so that the external electric appliance is fixed and conducted with the external power circuit; the socket is provided with a long hole, the long hole is provided with a first area and a second area along the length extension direction, in the orthographic projection of the horizontal plane of the long hole, the first area is wider than the second area, and one side wall of the second area is provided with a locking groove; the plug is provided with a locking piece, and the locking piece can stretch out and retract from the side face of the plug. The first area at least allows part of the locking piece to extend into, when the locking piece moves into the second area from the first area, the locking piece limited by the width of the second area retracts until the locking piece moves to be aligned with the locking groove and extends into the locking groove, then the electric appliance is rapidly installed, and the electric appliance is effectively prevented from loosening and falling off due to the locking function.

The invention discloses a detection protection device of a power line, electric connection equipment and electric equipment, a first shielding conductor structure and a second shielding conductor structure are arranged in the power line, under the condition that the first shielding conductor structure and / or the second shielding conductor structure are / is open-circuited, a first detection module can generate a first open-circuit signal, and a second detection module can generate a second open-circuit signal; the first detection module can generate a first open-circuit signal, the second detection module can generate a second open-circuit signal, the first driving module can control the switch module to disconnect power connection between the input end and the output end of the power line when detecting the first open-circuit signal or the electric leakage signal, and the second driving module can control the switch module to disconnect power connection between the input end and the output end of the power line when detecting the second open-circuit signal or the electric leakage signal. According to the invention, the switch module can be controlled to disconnect the power connection between the input end and the output end of the power line, that is to say, when the first shielding conductor structure and / or the second shielding conductor structure are / is open-circuited, the power connection of the power line can be triggered and disconnected through the corresponding open-circuit signal, so that the power utilization safety is ensured.

The utility model discloses a novel electric vehicle heating handlebar which comprises a support and a rotating pipe capable of rotating relative to the support, an electric heating wire is wound on the rotating pipe, a flange portion is formed at one end of the rotating pipe, and a handlebar sheath is sleeved on the rotating pipe to wrap the electric heating wire. A power line tray fixedly connected with the flange part is arranged between the flange part and the support, and a power line used for supplying power to the electric heating wire is at least arranged on the end face, facing the support, of the power line tray and is coaxially coiled by a plurality of circles with the power line tray. And the power line tray is used for enabling the power line coiled on the power line tray to freely stretch in an arc shape.

A network of transmission reception devices can be used for an indoor location system covering an indoor environment. The network includes a power supply system and a number of transmission reception devices. The power supply system includes a power cable with a power line and a power source configured to supply a voltage to the power line of the power cable. The power cable is arranged in the indoor environment. The transmission reception devices each include a transmission reception unit configured to operate as a stationary unit of the indoor location system and a power receiving unit including a connector configured to mechanically connect the transmission reception device to the power cable and to electrically connect the transmission reception unit to the power line for powering the transmission reception unit. Each transmission reception device is connected to the power cable at a respective stationary position.

A leakage current detection and interruption (LCDI) device includes a leakage current detection module, including a first and a second leakage current detection line and at least one resistive element and / or at least one semiconductor element, configured to detect a leakage current signal on the first or second current-carrying line and to generate a leakage fault signal in response to detecting the leakage current signal. The first and second leakage current detection lines are electrically insulated from each other, and respectively cover one of the first and second current-carrying lines. The at least one resistive element and / or semiconductor element is coupled in series between the first and second leakage current detection lines to form a current path for detecting an open circuit fault in the leakage current detection module. By detecting the fault in the first and second leakage current detection lines, the reliability of the LCDI device is improved.

The invention provides an outgoing line sheath, a motor and a power line outgoing line assembling method thereof, and an air conditioner, the outgoing line sheath comprises an outer sleeve body, the outer sleeve body is provided with a line outlet penetrating through two opposite end faces of the outer sleeve body, and the outgoing line sheath also comprises a first line clamping assembly and a second line clamping assembly which are arranged along the line outgoing direction perpendicular to the line outlet and are opposite to each other about the line outgoing direction; the first wire clamping assembly and the second wire clamping assembly can be driven to move close to each other so as to clamp a cable which is located between the first wire clamping assembly and the second wire clamping assembly and passes through the wire outlet. The device can be compatible with reliable clamping and fixing of various cables of different specifications, the phenomenon that the cables are loosened or crushed due to the fact that the threading holes of the outlet sheath are not matched with the specifications of the cables in the prior art is effectively overcome, multiple sets of molds do not need to be repeatedly opened, the mold opening cost is saved, the general use degree of materials is improved, and the production efficiency is improved. And the management work of material coding is simplified.