1321results about "Time integral measurement" patented technology

The invention discloses a three-phase intelligent multifunctional electric energy meter, which relates to the technical field of electric meters and comprises an electric meter body, a communication module, a battery body, a first limiting mechanism and a second limiting mechanism. The first limiting mechanism stops the battery body from entering the battery bin when the communication module is not installed in place, and guides the communication module to be installed firstly; and after the communication module is installed, the blocking to the battery compartment is automatically relieved, so that the battery body can be installed smoothly. The second limiting mechanism limits disassembly of the communication module when the battery body is not disassembled, the battery body is guided to be disassembled firstly and then the communication module is disassembled, the communication module is prevented from being mistakenly disassembled in a power-on or power-off state, and therefore the problems of power-off, hot plugging or electrical breakdown and the like of the communication module caused by misoperation can be avoided; and the reliability and the safety in the maintenance process of the electric energy meter are improved.

According to the grid-connected line electric energy quality on-line detection device, the system comprises a broadband sensing module which is deployed on a grid-connected line to form an original analog signal; the conditioning module forms a standardized digital sampling signal; the edge calculation module receives the standardized digital sampling signal, analyzes a voltage effective value, a harmonic distortion rate, a sag depth and an event duration index in real time through a parallel calculation architecture, and forms an electric energy quality characteristic data set; the intelligent analysis module receives the electric energy quality characteristic data set to form an abnormal event report; and the communication interaction module receives the abnormal event report, encapsulates the abnormal event report into a standardized data frame through a configurable protocol stack, synchronously pushes the standardized data frame to the local monitoring terminal and the cloud management platform, receives an external control instruction and feeds back the external control instruction to the intelligent analysis module to optimize an analysis strategy. The grid-connected line electric energy quality on-line detection device can solve the problem that complex disturbance cannot be recognized in real time and cannot be accurately traced to the source.

The invention relates to the technical field of electric energy meters, and provides a temperature-controllable electric energy meter and method, a box body is internally provided with a positive-pressure heat dissipation mechanism, the positive-pressure heat dissipation mechanism comprises an air inlet pipe, the air inlet pipe is arranged in the box body and located below an electric energy metering module, one end of the air inlet pipe is closed, and the other end of the air inlet pipe penetrates through the side wall of the box body and is communicated with the outside; the mounting box covers the air inlet pipe, a plurality of cooling fans are arranged in the mounting box, and the cooling fans are used for sucking air flow in the air inlet pipe and discharging the air flow through the air outlet; the shielding part is arranged at the top of the box body and used for blocking the exhaust port, the shielding part is used for forming a positive pressure environment in the box body, and the shielding part can be opened when the internal pressure of the box body is larger than preset pressure so that gas in the box body can be exhausted through the exhaust port. Through cooperation of the positive pressure heat dissipation mechanism and the shielding piece, a dynamic positive pressure environment is constructed in the box body, external dusty air can be prevented from invading through gaps or heat dissipation holes from the source, and the problem of dust accumulation caused by heat dissipation of a traditional electric energy meter is thoroughly solved.

The invention relates to an anti-magnetic interference intelligent electric energy metering box, and relates to the technical field of electric energy metering boxes, the anti-magnetic interference intelligent electric energy metering box comprises a meter box main body and a shielding assembly, the shielding assembly comprises a shielding box for installing the meter box main body, and a shielding cover detachably installed at the front side of the shielding box; heat dissipation openings are formed in the middle parts of the left and right vertical side surfaces of the shielding box, wiring openings are formed in the lower parts of the left and right vertical side surfaces of the shielding box, and shielding nets are fixedly arranged on the inner walls of the heat dissipation openings; protection plates are rotationally connected to the edges, close to the back side, of the left and right side surfaces of the shielding box, and a plurality of fixing holes are formed in the protection plates; limiting plates are fixedly arranged on the top faces of the two protection plates in the horizontal direction, and a locking piece is arranged on the top face of the shielding box. During carrying, the protection plates are rotated to be in a protection state of being attached to the left side face and the right side face of the shielding box, at the moment, the protection plates can play a role in protecting the shielding nets at the heat dissipation openings, and the shielding performance of the electric meter box is guaranteed.

The invention relates to a single-phase load identification intelligent ammeter, which relates to the technical field of ammeters, and comprises an ammeter body, a terminal cover and a fixing piece, the ammeter body is provided with a wiring area, a display area and a drainage channel penetrating through two sides of the ammeter body, and the terminal cover is hinged on the ammeter body and covers the wiring area and the drainage channel. The fixing member is used for detachably fixing the terminal cover on the ammeter body. The plugging part is arranged on the terminal cover, the plugging groove is arranged in the wiring area, the fixing piece is taken down from the plugging part to form an air guide flow channel between the plugging part and the wiring area, and the air guide flow channel is communicated with the drainage channel. Air is supplied to the plugging part through external air supply equipment, dust removal air can be blown into the wiring area along the air guide flow channel and is discharged through the drainage channel, dust in the wiring area can be cleaned under the condition that the terminal cover is not opened, the dust removal efficiency is improved, and the maintenance risk is reduced.

The invention relates to the technical field of electric energy meters, in particular to a novel split type single-phase intelligent electric energy meter applying new energy battery testing, which comprises a main shell assembly, a mounting base is fixedly connected to the upper end of the main shell assembly, a buffer mechanism is arranged at one end of the base, the buffer mechanism comprises a rotating shaft, and an extrusion block is eccentrically connected to the surface of the rotating shaft assembly. An extrusion block is arranged in the base, a containing cavity used for containing a cable connector is constructed in the extrusion block, a fixing mechanism is arranged in the extrusion block and comprises an annular air bag, a tightening mechanism is arranged at one end of the extrusion block, a second sleeve is fixedly connected to the surface of the base, and the second sleeve limits the position of a cable at the same time; when the cable is pulled, the extrusion block drives the rotating shaft to compress the torsional spring for buffering, the rotating shaft rotates and inflates the annular air bag to clamp and tighten the cable joint, and the extrusion block eccentrically rotates and is matched with the sleeve to further fix one end, far away from the joint, of the cable.

The invention relates to the technical field of electric energy meters, in particular to a device convenient for replacing an electric energy meter, which comprises a fixed seat, an electric energy meter sleeve is fixedly arranged outside the top end of the fixed seat, and the electric energy meter sleeve, a screwing assembly and a driving assembly are arranged and mutually linked and matched to operate. Therefore, when the electric energy meter is replaced or installed, only the direction of rotating the auxiliary handle needs to be controlled, so that a plurality of screw binding posts can be synchronously unscrewed or screwed, an operator does not need to screw or unscrew the screw binding posts one by one by using a screwdriver, the overall operation is convenient, and the working efficiency is improved. When the screwing assembly operates, the limiting assembly is driven to operate synchronously to be opened or closed, after the screw binding post is unscrewed synchronously, the wire core and the internal wiring hole of the electric energy meter are not limited, meanwhile, the limiting assembly operates to be opened, and the top and the side edge of the sleeve of the electric energy meter are opened. At the moment, the electric energy meter in the electric energy meter sleeve can be directly taken out for replacement, and overall replacement is convenient.

The invention provides a metering box state detection and customer electricity utilization information collaborative electricity larceny prevention method, and relates to the technical field of electricity larceny prevention, and the method comprises the following steps: a physical sensor and an electrical sensor are deployed in a metering box and an electricity utilization loop, the physical sensor is used for collecting the state data of the metering box, and the electrical sensor is used for collecting customer electricity utilization information; data of the physical sensor and the electrical sensor are collected in real time, and the collected data are preprocessed and then transmitted to the cloud platform; the cloud platform performs physical anomaly identification on the state data of the metering box and performs electricity consumption anomaly identification on the electricity consumption information of the client; through multiple deployment of the physical sensor and the electrical sensor, the risk that a single sensor is deceived is avoided, through a cooperative verification mechanism of metering box state-electricity utilization information, box opening non-electricity stealing and box-immovable electricity stealing can be effectively distinguished, and through actual verification, the misjudgment rate is greatly reduced, and the missing report rate is controlled within 5%.

The invention relates to the technical field of electric meters, in particular to an internet of things intelligent electric meter supporting edge computing, which comprises an intelligent electric meter shell and a circuit board arranged in the intelligent electric meter shell, and further comprises an elastic mounting system which comprises a plurality of clamping seats fixed on the inner wall of the intelligent electric meter shell and a plurality of clamping heads fixed on the edge of the circuit board, a bidirectional buffer mechanism is arranged between the clamping head and the clamping seat, the bidirectional buffer mechanism allows the circuit board to perform multi-degree-of-freedom micro motion in a vibration environment so as to buffer impact, the heat exchange and dehumidification system comprises a heat conduction copper rod penetrating through the clamping seat, one end of the heat conduction copper rod is thermally connected with the bidirectional buffer mechanism, and the other end of the heat conduction copper rod is provided with heat dissipation fins. The heat conduction copper rod is sleeved with a moisture absorption filter element and a breathing heat dissipation system, the breathing heat dissipation system comprises a breathing air shell fixed in the intelligent electric meter shell, a suction groove is formed in the breathing air shell, an intermittent air exchange mechanism is arranged in the breathing air shell, and the air exchange mechanism can periodically suck external cooling air into the shell and then discharge the air out of the shell to blow the circuit board.

A meter socket adapter (MSA) for connecting a battery energy storage system (BESS) to a household microgrid through a meter combo load center. The MSA includes: a housing matching an electricity meter and a meter socket in the meter combo load center; a plurality of power conductors that connect among the electricity meter, the meter socket, and BESS; a meter interconnection device (MID) switch for connecting a utility grid or one or more distribution energy resource (DER) devices to supply power to household loads in the household microgrid; a MID driving circuit for driving the MID switch to close or open; and a MID connection detection circuit to verify an electrical connection of a closed MID switch.

The invention relates to a single-phase intelligent electric energy meter, which relates to the technical field of electric meters, and comprises an electric meter body with a wiring area and a data storage area, a communication module detachably mounted in the data storage area, and a wiring terminal group arranged in the wiring area, the first cover plate and the second cover plate respectively cover the data storage area and the wiring area. And the first cover plate and the second cover plate are detachably connected with the electric meter body through the first fixing piece and the second fixing piece respectively. The linkage relation between the first fixing piece and the second fixing piece is established on the structure, so that the second fixing piece is locked when the first cover plate is in the covering state, and the second fixing piece is unlocked after the first cover plate is taken away and rotated to the maximum opening and closing position. According to the structure, a mechanical linkage principle is utilized to restrain a dismounting sequence, and an operator is guided to dismount the communication module and then dismount the wiring terminal group to a certain extent, so that the risk of adverse effects of misoperation on the stability of communication data can be reduced.

The invention discloses a high-frequency and power-frequency data processing method and system of a double-core electric energy meter and the electric energy meter, and belongs to the field of electric power systems.The method comprises the steps that the double-core electric energy meter comprises a metering unit and a management unit, the metering unit obtains a first power-frequency analog signal through a first processing link, and the management unit obtains a second power-frequency analog signal through a second processing link; a first power frequency digital signal is obtained through filtering, analog-to-digital conversion and numerical calculation, a first high-frequency current analog signal is obtained through a second processing link, a second high-frequency current analog signal is obtained through filtering, the two kinds of signals are transmitted to a management unit through analog and digital signal channels respectively, and time alignment is carried out based on a time synchronization method. Therefore, by means of the electric energy meter, the problems that in the prior art, the sensing frequency band of an electric energy meter is narrow, and the legal function and illegal function coupling degree is high can be solved.

The invention discloses an electric energy metering module which comprises a first shell, a second shell, a mutual inductor, a wire pressing frame assembly, a copper bar, a temperature sensor and a circuit board. A wire pressing frame assembly groove is formed in the first shell, and the wire pressing frame assembly is arranged in the wire pressing frame assembly groove; a mutual inductor groove is formed in the front side of the wire pressing frame assembly groove in the first shell, and a mutual inductor is arranged in the mutual inductor groove. A copper bar groove is formed in the center of the mutual inductor groove, the copper bar groove is communicated with the wire pressing frame assembly groove, and a copper bar extends into the wire pressing frame assembly groove through the copper bar groove and is placed in the wire pressing frame assembly; circuit board grooves are formed in the two side walls of the first shell, and the circuit board is inserted through the circuit board grooves; a gap is arranged below the copper bar groove, and the temperature sensor is arranged at the gap. The mutual inductor, the copper bar and the temperature sensor are all connected with the circuit board to collect a current signal, a voltage signal and a temperature signal; copper bar holes are formed in the second shell in a penetrating mode, and when the second shell is installed on the first shell, the copper bars penetrate out of the copper bar holes respectively.

The invention provides an electricity larceny evidence obtaining method and device based on a storage type mutual inductor, and relates to the technical field of electricity larceny prevention of an electric power system. The method comprises the following steps: acquiring a first path of data and a second path of data of a target voltage level line at a target moment; taking a difference value between the second accumulated electric quantity and the first accumulated electric quantity as a real-time electric quantity deviation; calculating an electric quantity deviation threshold by using the first path of data and the second path of data; and according to the real-time electric quantity deviation and an electric quantity deviation threshold value, judging whether an electricity stealing behavior occurs in the target voltage level line at the target moment, and obtaining evidence of the electricity stealing behavior when the electricity stealing behavior occurs in the target voltage level line at the target moment. According to the invention, the accuracy of electricity larceny detection can be improved, and the possibility of false alarm and missing alarm is reduced.

The invention discloses an uninterruptible power meter changing metering box and an electric meter changing method thereof, and the uninterruptible power meter changing metering box comprises a box body, a wiring device and a short circuit device. An electric meter position is arranged in the box body; the wiring device comprises an electricity meter connecting terminal which is arranged in the electricity meter position and used for installing an electricity meter. The electricity meter connecting terminal comprises a plurality of expansion terminals. The short-circuit device comprises a driving assembly mounted on the box body, and a short-circuit assembly and an expansion assembly which are connected with the driving assembly, the driving assembly is used for being driven to a first driving state or a second driving state, the first driving state of the driving assembly is used for driving the short-circuit assembly to short-circuit the expansion terminals with the same phase, and the second driving state of the driving assembly is used for driving the expansion terminals with the same phase; meanwhile, the expansion assembly is driven to drive the expansion terminal to contract; the second driving state of the driving assembly is used for driving the short-circuit assembly to break away from the expansion terminal and driving the expansion assembly to drive the expansion terminal to open. According to the metering box capable of replacing the meter without power failure, the electric meter can be rapidly replaced in a non-power-failure state, and misoperation is avoided.

The invention discloses an electrical carbon measuring instrument and method, and belongs to the field of electrical carbon meters, the electrical carbon measuring instrument comprises an electrical carbon meter main body, an interface protection shell is fixedly mounted at the bottom end of the electrical carbon meter main body, and a sealing part for sealing is mounted in the interface protection shell; a plurality of interface parts used for being connected with external wires are installed in the interface protection shell, a plurality of arc extinguishing parts corresponding to the interface parts are arranged outside the interface protection shell, the interface parts penetrate through the sealing parts to be connected with the arc extinguishing parts, and the arc extinguishing parts are used for preventing electric arcs from being generated between the wires and the interface protection shell. According to the scheme, through the arrangement of the interface part, the interface of the electric carbon meter can be flexibly moved, a wire does not need to be bent even if the electric carbon meter faces a plurality of interfaces, the electric carbon meter can be flexibly moved according to the space and the wire inlet position, the wire can be better protected, and the service life of the electric carbon meter is prolonged. And wire arrangement can be well carried out even in a narrow space.

The utility model discloses an electric energy meter data acquisition unit, which relates to the field of data acquisition, and is provided with an equipment interface, a communication interface, a communication module, an MCU (Microprogrammed Control Unit), an antenna and a first DCDC (Direct Current to Direct Current) module, the antenna is arranged near the electric energy meter through the coaxial line, the antenna is arranged near the electric energy meter through the coaxial line, the first DCDC module reduces the first voltage into the second voltage and then supplies power to the communication module, the equipment interface transmits data to the MCU through the communication interface, and after the communication module is powered on and the MCU receives the data, the MCU communicates with the electric energy meter through the communication module and the antenna. The influence of the MCU in the electric energy meter data collector on the antenna is greatly reduced, an iron plate does not need to be arranged like a sucker antenna, the appearance is low, and the possibility of being damaged is reduced.

The invention discloses a temperature drift compensation method for an intelligent electric meter, and the method carries out the gradual optimization according to levels: constructing a basic temperature drift compensation model at the first layer, and preliminarily offsetting the influence of temperature on the measurement precision; in the second layer, a temperature change rate item is introduced into a compensation formula, the temperature change rate is calculated through a weighted sliding window algorithm, and an instantaneous metering error caused by local instantaneous temperature rise caused by sudden load change is compensated; in the third layer, temperature sensors are independently arranged in a high-heat area (a metering chip) and a low-temperature area (a current transformer) in the ammeter respectively, and a corresponding temperature drift compensation model is established based on temperature data of each area to adapt to the temperature difference of the areas; and the fourth layer respectively constructs deep learning networks for the high-heat area and the low-temperature area, inputs the temperature time sequence data of each area, the operation duration of the electricity meter and the environment temperature into the corresponding networks, and outputs model updating parameters to realize the dynamic updating of the model. According to the invention, the metering precision of the intelligent electric meter in steady and dynamic working conditions and long-term operation can be obviously improved.

The utility model relates to the technical field of electric energy meter bases, in particular to a single-phase intelligent electric energy meter base. According to the technical scheme, the device comprises a bottom plate, a fixing frame is fixedly arranged on one side of the bottom plate, and a plurality of first through holes are formed in the bottom of the fixing frame; the fixing plate is arranged between the fixing frames, a plurality of second through holes are formed in the fixing plate, connecting terminals are movably sleeved with the second through holes, and one end of each connecting terminal is fixedly connected with a wire terminal; the fixing block is located between the fixing frames, a plurality of grooves are formed in one side of the fixing block, two sets of sliding grooves are formed in the inner wall of each groove, and sliding blocks are arranged in the sliding grooves in a sliding mode. According to the utility model, the connection terminals can be rapidly adjusted according to the connection of different types of electric energy meters, the adaptation to different types of electric energy meters is realized, the connection steps are simplified, the installation convenience and efficiency are improved, the application range is expanded, the diversified requirements are met, and the overall performance and the use flexibility of the electric energy meters are improved.

The invention provides a metering box electricity larceny detection method, system, equipment and medium under carrier communication, and relates to the field of metering box electricity larceny prevention, and the method comprises the following steps: collecting the three-phase current ICCO, voltage UCCO and freezing electric quantity QCCO of a split-phase protection intelligent circuit breaker, and the current Ij, voltage Uj and freezing electric quantity Qj of an electric energy meter in real time; calculating a correlation coefficient and an average distance between the voltage sequence {Uj} of the electric energy meter and the three-phase voltage sequence {UA, UB, UC} of the circuit breaker, and determining a connection phase of each electric energy meter; the deviation value delta I of the sum of the current ICCO of the circuit breaker and the current Ij of the connected electric energy meter under the same phase is calculated, a line loss model is constructed by combining the freezing electric quantity Qj and the QCCO, and the line loss rate p is solved; and performing three-level electricity stealing judgment, positioning an electricity stealing point and generating an electricity stealing probability Ptheft. Through multi-source data fusion, edge-side autonomous efficient electricity stealing closed-loop judgment and split-phase protection and electricity stealing prevention collaborative optimization, the accuracy of electricity stealing identification and the reliability of power supply are remarkably improved.

The invention relates to the field of force-electromagnetic coupling measurement, and discloses a low-voltage electric energy metering box internal arrangement method and system based on a modular mutual inductor plugging structure, and the method comprises the steps: synchronously collecting three-phase module magnetic flux density, base strain field and pre-tightening force time sequence data through deploying a multi-source sensor; a directed weighted hypergraph is constructed to represent a magnetoelastic coupling topology, the topology is converted into a time-varying creep rate matrix through a viscoelastic creep memory operator, a compensation strategy is generated in combination with phase space division and a magnetostriction response tree, and finally an optimization scheme of module spacing and interface rigidity is reversely mapped. By accurately capturing the time-varying mechanical law of the strain field and the pre-tightening force, the problem of time-varying coupling drift of the modular mutual inductor caused by structure-electromagnetic coupling and viscoelastic memory effect is solved, the limitation of traditional static independent calibration is broken through, and long-term stability of three-phase metering precision is achieved.

The invention relates to the technical field of wiring terminal boxes, in particular to an intelligent analysis type wiring terminal box and a control system thereof.The intelligent analysis type wiring terminal box comprises the intelligent analysis type wiring terminal box and the control system used for controlling the wiring terminal box, and the intelligent analysis type wiring terminal box comprises a box body and a transparent protective cover; the box body is composed of a first main body, a second main body and a third main body which are sequentially connected, the first main body is provided with a wiring communication assembly, the second main body is an insulation board, and the third main body is provided with a monitoring acquisition assembly; the control system comprises a sampling unit, a comparison unit, a processing unit, a communication unit, an acquisition terminal and an acquisition background, and all the units cooperate to realize data sampling, comparison, processing and transmission. According to the invention, the accuracy of the metering device can be guaranteed, and the working pressure of line loss index governance improvement and electric quantity and electricity charge recovery by basic units can be reduced, so that the purpose of intelligent monitoring of the metering device is achieved.

A novel AI intelligent electric energy metering box disclosed by the present invention comprises a box body used for accommodating an electric meter and an internal circuit and a box door, a built-in locking mechanism is arranged between the box body and the box door, and the box door is provided with an Internet of Things mechanism. The built-in locking mechanism comprises guide cylinders fixedly installed on the inner wall of the box body, guide rods rotatably installed on the inner side of the box door and an unlocking assembly, and the guide rods and the guide cylinders are in clearance fit and are distributed in a rectangular array. The user can check the power consumption information anytime and anywhere through the touch display screen or the mobile phone and know the power consumption condition, the user can conveniently and autonomously manage the power consumption, and the user experience is improved.

The invention discloses an electric energy metering box, and belongs to the technical field of electric energy metering boxes, and the electric energy metering box comprises an electric energy metering box body, a placement rack and a rapid dismounting assembly, the placement rack is internally provided with an insertion groove, the inner surface of the insertion groove is slidably connected with an insertion block, and the front surface of the insertion block is fixedly connected with an electric meter. And the quick dismounting assembly comprises a first trapezoidal block, a second trapezoidal block, a moving rod, a lower pressing block, a limiting block and a spring, a limiting groove is formed in an insertion block, and a placing groove is formed in the placing frame. According to the invention, the tedious steps of traditional bolt fastening and the like can be reduced, the time for aligning and screwing tools group by group is saved, the ammeter can be conveniently and quickly mounted and dismounted, the mounting and dismounting time is saved, the quick dismounting assembly occupies a small space, the layout congestion caused by the large size of the assembly is avoided, and the wiring planning of circuits in the box is facilitated. Line cross interference is reduced, and potential safety hazards such as short circuit and electric leakage are reduced.

The invention discloses an intelligent electric energy meter based on artificial intelligence and a metering regulation and control method. The method comprises the steps that an acquisition module acquires metering deviation data and multi-dimensional power consumption data; the correction module is used for correcting the multi-dimensional power consumption data according to a pre-constructed dynamic compensation model and the metering deviation data to obtain accurate power consumption data; an analysis module performs data analysis on the accurate power consumption data to obtain a target power consumption data set; the behavior extraction module is used for extracting differentiated power utilization characteristics and dynamic power utilization modes of users from the target power utilization data set; and the generation module generates a metering self-adaptive regulation and control scheme according to the differentiated power utilization characteristics and the dynamic power utilization mode, and executes the metering self-adaptive regulation and control scheme. The data processing precision and the analysis depth are improved, and the metering precision is improved by combining a dynamic compensation model with real-time metering deviation data; and the metering self-adaptive regulation and control scheme is generated by extracting the differentiated electricity utilization characteristics and the dynamic electricity utilization modes of the users, so that the metering accuracy of the intelligent electric energy meter is improved.

The invention relates to the technical field of electric energy metering, in particular to an electric energy meter metering anomaly analysis method and device. The method comprises the following steps: acquiring environment data and electrical data of a to-be-detected electric energy meter in a first preset duration by taking a current time point as a starting point; sequentially determining an environment characteristic matrix and an electrical characteristic matrix based on the environment data and the electrical data; performing feature fusion on the environment feature matrix and the electrical feature matrix according to a multi-feature dynamic change proportion to obtain a fusion feature matrix of the electric energy meter; inputting the fusion feature matrix into a preset electric energy meter metering anomaly analysis model to obtain an anomaly analysis result; after the second preset duration, the step of obtaining the environment data and the electrical data of the to-be-detected electric energy meter with the current time point as the starting point in the first preset duration is executed again, and therefore real-time and accurate monitoring of the metering state of the electric energy meter can be achieved.

The invention relates to a multi-structure self-adaptive electric energy meter non-power-cut replacement device and a use method. The multi-structure self-adaptive electric energy meter non-power-cut replacement device comprises a control host connected with a single-phase electric meter; the wire inlet side and the wire outlet side of the single-phase electric meter are respectively connected with switches of the same type or different types, the switch of the wire inlet side is connected with a power supply side socket of the control host through a wire inlet electricity taking module, the switch of the wire outlet side is connected with a user side socket of the control host through a wire outlet electricity taking module, and the control host and the single-phase electric meter form a parallel bypass; the lower part of the single-phase ammeter is provided with a connection terminal area, the connection terminal area is provided with four ammeter buses which are arranged at intervals, and each ammeter bus is locked with the single-phase ammeter through a wire locking screw. The connection terminal area is detachably connected with a short circuit module, the short circuit module is connected with the control host and the locking wire screw, the adjacent ammeter buses are locked or loosened by adjusting the locking wire screw, the single-phase ammeter is seamlessly switched from an original circuit to a parallel bypass, and meanwhile the passing electric quantity is continuously metered.

The invention belongs to the technical field of electric meters, and particularly relates to an intelligent electric meter. Comprising a distribution box; a plurality of electricity meters are mounted in the distribution box; an exhaust fan is arranged on the outer side of the distribution box and extends to the inner side of the distribution box; the electricity meter is provided with an exhaust cooling device; the exhaust cooling device comprises a heat dissipation cavity which is arranged in the electric meter. A through square groove, arranged on the side surface of the ammeter and communicated with the heat dissipation cavity; the air exhaust hollow square pipe is mounted at the through square groove and is matched with the through square groove; one end of the exhaust hollow square pipe is located in the distribution box, and the other end is located in the through square groove; therefore, the heat dissipation gas is cooled, the phenomena that heat is concentrated in the distribution box due to over-high temperature of the heat dissipation gas, and a shell and internal materials are deformed and accelerated to age due to over-heat when the heat dissipation gas acts on the surfaces of adjacent electricity meters for a long time are avoided, and the service life of the electricity meters is prolonged. The metering precision and the operation stability of the intelligent electric meter are prevented from being influenced by over-high temperature in the box, and the limitation of the intelligent electric meter in practical application is reduced.

The invention relates to the technical field of electric energy meter connectors, and particularly provides a state monitoring method of an electric energy meter connector and the electric energy meter connector. According to the method, early warning grading is carried out based on temperature data at a connector plug, a dynamic safety threshold value at the current moment, a temperature change rate and a temperature trend; the state monitoring result of the connector is determined based on the early warning level, the fault type and the residual life, the dynamic safety threshold is determined according to the real-time current data flowing through the connector and the real-time environment temperature, and the temperature trend and the temperature change rate are determined based on the sliding window strategy and the 3 sigma principle; the fault type is determined according to the temperature data, the current data and the historical data, and the residual life is predicted according to the temperature data and the time data corresponding to the temperature data. The problem that the operation state of the electric energy meter connector cannot be monitored in real time in the prior art is solved.

The utility model provides an electric energy meter built-in load switch anti-locked-rotor structure and an electric energy meter built-in load switch, the electric energy meter built-in load switch anti-locked-rotor structure comprises a worm and a worm gear engaged with the worm, the worm comprises a power part and a transmission part connected with the power part, and the transmission part is engaged with the worm gear; a driving block is arranged on the power part, a following block is arranged on the transmission part, the driving block rotates along with the power part and forms a motion path, and the following block is arranged in the motion path; when the worm gear and the worm are self-locked, the power part rotates reversely, the driving block moves along the movement path until the following block is driven to rotate and the transmission part is synchronously driven to rotate, so that self-locking of the worm gear and the worm is relieved, and after self-locking is relieved, the motor continues to rotate forwards to drive the power part to rotate forwards and drive the transmission part to rotate forwards at the same time. And the worm gear and the worm return to normal work.