CN210803624U - Fast-assembly live-line operation electric measurement Internet of things sensor - Google Patents

Abstract

The utility model provides a but ready-package live working electrical measurement thing networking sensor belongs to intelligent electrical equipment technical field. The intelligent power supply device comprises a current transformer, a voltage transformer, a temperature sensor, a spiral electricity taking pin, a pressing plate, an insulating gasket, a baffle, a current limiting resistor box, an outlet interface and the like. The voltage sensor, the current sensor and the temperature sensor are integrated, signals are led out uniformly, field operation is simplified, and charged loading and unloading are achieved. The design of spiral electricity-taking needle has improved the broken skin and has got the electricity efficiency, and baffle and recessed symmetrical stairstepping structure can fix the wire well when carrying out the broken skin and get the electricity, and insulating gasket has protected the broken skin mouth of wire, and the current-limiting resistance box can make the sensor adapt to the wire of different voltage grades. The intelligent electric big data acquisition system provides a convenient internet of things sensor for realizing intelligent electric big data acquisition, has the advantages of simple structure, hot-line operation, convenience in use, low cost, convenience in loading and unloading and the like, and can be widely applied to monitoring of various electric devices.

Description

Fast-assembly live-line operation electric measurement Internet of things sensor

Technical Field

The utility model relates to an electrical equipment on-line measuring sensor, especially a but thing networking sensor for realizing intelligent electric, integrated form live working. Belongs to the technical field of intelligent electrical equipment.

Background

With the development of information technology and the recent introduction of intelligent manufacturing, the intellectualization of electrical equipment is the mainstream trend of future development, and the sensor part for carrying out intellectualized online monitoring of electrical equipment plays more and more important roles. In the operation of electrical equipment, the monitoring of the quality of electric energy, the intelligent operation fault diagnosis of the equipment, the intelligent control of the electrical equipment and the like are all based on the online real-time acquisition of the operation parameters of the electrical equipment and the accumulation of large operation data, and the current mainstream technology adopts a discrete sensor and adopts independent sensors in different systems, so that the defects of large volume, high cost, difficult loading and unloading, poor compatibility, power failure installation and the like exist, and the implementation and the development of the intelligent manufacturing in the electrical field are greatly restricted.

The Chinese patent 'a low-voltage power distribution cabinet power data acquisition module' (application number: 201610782346.0) provides a data acquisition module of 'a current transformer, a temperature sensor, a bark breaking and power taking mechanism and a wire harness jack', which is convenient to install and reduces power failure time to a certain extent. However, the wire pressing type peeling and electricity taking mechanism is adopted, the conductive metal prick and the inner core of the wire are easy to knock, the contact effect is poor, and the tip of the wire and the conductive metal prick are easy to damage; meanwhile, when the sheath of the wire is hard, especially a plurality of metal thorns are adopted to ensure the communication effect, a large external force is required to be applied, the sheath breaking effect is poor, the sheath breaking efficiency is low, and damage to a 'fixed support screw' and even the whole electricity taking mechanism is possibly caused by the wire pressing type sheath breaking electricity taking method; the protection of the broken position of the lead is lacked, and when the lead runs for a long time, the lead conductor at the broken position is easily oxidized or corroded by the influence of the environment, so that the data acquisition error is large, and even the heating of the lead causes the fault of connected equipment to influence the production; there is no measure to center and prevent the wire from moving when the skin is broken. In addition, although reference is made to a temperature sensor, no specific mounting and measuring means or the like is disclosed.

As an improved technology, the Chinese patent 'a composite sensor for monitoring electric quantity and temperature and a cable state monitoring system' (application number: 2018102460366) realizes the fusion of a traditional current transformer, a voltage transformer, a temperature sensor, a communication device and the like, integrates an information processing module, does not need to be powered off during installation, and solves the problems to a certain extent. However, some key technical problems are still not solved effectively, for example, the voltage sampling puncture knife is still in a line-pressing type skin-breaking mode with a plurality of metal thorns, and the cable temperature monitoring element is in close contact with the root of the voltage sampling puncture knife, but is in direct contact with strong electricity, so that potential safety hazards are brought.

The Chinese patent 'multifunctional puncture electric wire clamp' (application number: 2018100079755) adopts a mode of adjusting sheets and adjusting teeth to adapt to wires with different thicknesses, but has a very complex structure; the lower surface of the shell and the upper surface of the clamping plate are provided with clamping grooves, so that the clamping plate and the shell clamp and fix the external wire, but the wire clamping plate is not strong in adaptability to the thickness of the wire, and particularly when the wire is too thin.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a quick-mounting type live-line operation electric measurement Internet of things sensor, which meets the requirements of integration, miniaturization, modularization, compatibility, convenience, flexibility, reliability, safety and the like of the required sensor when monitoring various intelligent electric parameters; meanwhile, a convenient internet of things sensor is provided for realizing intelligent electrical big data acquisition, and the intelligent electric data acquisition system has the advantages of being simple in structure, capable of being operated in a live mode, convenient to use, low in cost, convenient to assemble and disassemble and the like.

The utility model provides a technical scheme that its technical problem adopted is:

the ready-package live-line operation electric measurement Internet of things sensor comprises an opening current transformer (1), a movable shaft (2), a locking structure (3), a closed iron core (4), a current transformer output end (5), a conductor sheet (6), a spiral electricity taking pin (7), a baffle (8), a voltage leading-out end (9), a voltage auxiliary end (10), a wire (11) and an outlet interface (12).

The open current transformer (1) is of a U-shaped structure with an opening on the side face, the upper end of the opening is provided with a movable shaft (2), the lower end of the opening is provided with a locking structure (3), a closed iron core (4) is connected with the movable shaft (2), and forms a closed magnetic circuit with the open current transformer (1) after being locked by the locking structure (3), and the output end (5) of the current transformer leads out signals of the open current transformer (1); the conductor piece (6) is fixed on one arm of a U-shaped structure of the open current transformer (1), the spiral electricity taking pin (7) penetrates through a screw hole in the conductor piece (6), the baffle (8) is fixed on the other arm, and the conductor piece (6) is opposite to the baffle (8). The conductor piece (6) also plays a role in fixing the spiral electricity taking needle (7).

The spiral electricity taking needle (7) is structurally divided into three parts, the head part is of a spiral structure, the top part is of a needle shape, the middle part is of a thread structure matched with a screw hole on the conductor piece (6), and the tail part is of a screw cap or an insulating spanner; the insulating spanner can ensure that field workers can safely carry out live loading and unloading without any other tools.

The voltage leading-out end (9) is connected with the conductor piece (6), the voltage auxiliary end (10) is connected with a neutral line, a zero line, a ground line or another phase line, and when the spiral electricity taking needle (7) penetrates through the conductor (11) to be contacted with an inner conductor of the spiral electricity taking needle, the voltage leading-out end (9) and the voltage auxiliary end (10) obtain voltage signals which can be used as original signals of voltage sampling and power supplies for other devices.

The output end (5) of the current transformer, the voltage leading-out end (9) and the voltage auxiliary end (10) are gathered to the outlet interface (12). The outgoing line interface (12) can adopt various modes such as a terminal strip, a line pressing terminal, an aviation plug and the like according to installation requirements.

The voltage signals can be collected in various modes, such as a Hall sensor, and the voltage signals led out by a voltage leading-out end (9) and a voltage auxiliary end (10) can be directly used. Or adopt traditional current-limiting resistor's mode, but ready-package live working electrical measurement thing networking sensor still include voltage transformer (13), voltage transformer input (14), voltage transformer output (15), current-limiting resistor box (16), current-limiting resistor (17). One terminal of a voltage transformer input end (14) of the voltage transformer (13) is connected with the conductor sheet (6) through a current-limiting resistor (17) clamped in a current-limiting resistor box (16), and the other terminal is connected with a neutral line, a zero line, a ground wire or another phase line to obtain an input voltage signal of the voltage transformer (13); the current-limiting resistor (17) is installed in the current-limiting resistor box (16) by adopting a buckle, so that the current-limiting resistor (17) can be put in or taken out at any time, is convenient to replace, or the resistance value of the current-limiting resistor is adjusted according to the voltage grade; in order to ensure reliable connection, a wire pressing terminal and the like can be used.

The output end (15) of the voltage transformer leads out the signals converted by the voltage transformer (13) and gathers the signals to the outlet interface (12). The voltage transformer (13) and the current limiting resistance box (16) are integrated with the open current transformer (1). Thereby improving the integral integration level and leading the structure to be more compact.

Further, but ready-package live-wire operation electrical measurement thing networking sensor include clamp plate (18) and insulating gasket (19), center department all has the through-hole, the through-hole diameter is less than the screw thread external diameter at screw electricity taking needle (7) middle part, the helical structure external diameter of more than or equal to screw electricity taking needle (7) head. When the spiral electricity taking needle (7) is rotated to extrude into the lead (11), the pressure plate (18) and the insulating gasket (19) are blocked by the thread in the middle of the spiral electricity taking needle (7) to move towards the lead (11) until the pressure plate is pressed on the outer surface of the lead (11). The pressing plate (18) is made of arc-shaped hard insulating materials, and the insulating gasket (19) is made of flexible insulating materials. The arc-shaped pressing plate (18) plays a role in supporting and pressing the insulating gasket (19), and the insulating gasket (19) made of flexible insulating materials is used for better adhering to the broken position of the lead (11) and playing a role in sealing.

Furthermore, the contact surface of the baffle (8) and the lead (11) is a concave symmetrical stepped structure (20), and the central point is aligned with the central axis of the spiral structure of the spiral electricity taking needle (7). The wire (11) can be better stabilized when the spiral electricity taking needle (7) is used for skin breaking, the wire is not twisted due to the rotation of the spiral electricity taking needle (7), and meanwhile, the wire is automatically centered when skin breaking and electricity taking are carried out, so that the spiral electricity taking needle (7) can conveniently enter the wire (11) from the optimal position. Moreover, the concave symmetrical step-shaped structure (20) can be suitable for the leads (11) with different wire diameters, and a pair of symmetrical steps can clamp the leads (11).

Furthermore, but ready-package live-line operation electrical measurement thing networking sensor include adiabatic pad (21), temperature sensor (22) and temperature sensor output (23), adiabatic pad (21) are fixed in baffle (8) surface, the probe of temperature sensor (22) is inlayed in baffle (8) central point department to wear out from adiabatic pad (21), with wire (11) in close contact with, temperature sensor output (23) are drawn forth the signal of temperature sensor (22), gather to interface (12) of being qualified for the next round of competitions. After the lead (11) is installed, a heat insulation space is formed between the heat insulation pad (21) and the insulation sheath of the lead (11), so that the space is slightly influenced by the temperature of the external environment, and therefore, the probe of the temperature sensor (22) is positioned in the space and can accurately reflect the temperature change of the lead (11). Certainly, the insulating sheath of the lead (11) can cause certain tiny temperature difference and temperature change hysteresis effect, but after the external influence is eliminated, the measuring effect of the internal temperature of the lead (11) is not influenced; this is a preferred solution when the temperature sensor (22) cannot be brought into direct contact with the inner conductor of the wire (11).

More optimally, the current transformer output end (5), the voltage transformer output end (11) and the temperature sensor output end (23) are connected to the outgoing line interface (12) through a shielded twisted pair, and other internal wiring such as the voltage outgoing end (9) and the voltage auxiliary end (10) also adopts shielded wires so as to improve the overall anti-interference capability.

Further, the ready-package live-line operation electric measurement Internet of things sensor comprises an Internet of things terminal (24) which comprises an incoming line interface (2401), an analysis processing module (2402) and a communication module (2403); the terminal (24) of the internet of things is connected with the outgoing line interface (12) through the incoming line interface (2401) to acquire signals and power collected by the sensor, the analysis processing module (2402) collects, analyzes and processes analog signals transmitted by the incoming line interface (2401), and data exchange is carried out with the outside in a wired or wireless mode through the communication module (2403).

The ready-package live-line operation electric measurement Internet of things sensor provides voltage, current and temperature data which can be measured when a lead (11) runs, and carries out analysis and processing, thereby effectively simplifying the structure of an external intelligent measurement and control device and providing Internet of things sensor equipment for realizing an intelligent electric system.

Compared with the prior art, the utility model has the advantages of as follows:

1) the voltage sensor, the current sensor and the temperature sensor are integrated, so that compared with the traditional split type sensor, the on-site operation is simplified, the convenience and the rapidness are realized, the overall volume is greatly reduced, and the overall cost is reduced; moreover, most of the electrical connection is converted into internal packaging wiring, so that the reliability is high, the anti-interference capability is strong, the service life is long, and the influence on the original electrical connection is small; the live loading and unloading are realized, the influence on production caused by power failure is avoided, and the device can be used immediately after loading and unloading and is convenient to measure.

2) An integrated sensor is adopted to provide analog quantity data signals, and a networking terminal is combined to form a complete intelligent electric Internet of things sensor; the integration, miniaturization and modularization of the sensors required by intelligent electricity are realized, and the compatibility, convenience, flexibility, reliability, safety and the like are realized.

3) The design of three different structures of the spiral electricity taking needle and the screw-in working mode are adopted, external force is applied very little, the skin breaking efficiency is high, the whole structure cannot be damaged by external force, and the full contact with a conductor is realized; the insulation gasket can well protect the skin breaking port of the lead, dust and moisture are prevented from entering the lead conductor from the skin breaking port during working to influence the service life of the conductor, faults caused by heating of the conductor at the skin breaking position are effectively avoided, and equipment and economic losses are caused.

4) The ladder-shaped structural design of the recessed symmetry of baffle, when taking electricity at the broken skin, can fix the wire well, the horizontal drunkenness of wire when effectively preventing the broken skin is convenient for bore the screw from the wire center, makes the screw fully contact the conductor, and the sample is more accurate and stable.

5) The current-limiting resistor box and the buckle type design thereof enable an operator to adjust the resistance value of the current-limiting resistor according to the voltage grade, the current-limiting resistor can be put in or taken out at any time, and the installation and the disassembly are convenient.

Drawings

FIG. 1: the overall structure of the sensor is schematic.

FIG. 2: and the terminal structure schematic diagram of the Internet of things.

In the figure: 1-open current transformer, 2-movable shaft, 3-locking structure, 4-closed iron core, 5-current transformer output end, the intelligent power supply comprises a 6-conductor sheet, a 7-spiral electricity taking needle, an 8-baffle, a 9-voltage leading-out end, a 10-voltage auxiliary end, a 11-lead, a 12-outlet interface, a 13-voltage transformer, a 14-voltage transformer input end, a 15-voltage transformer output end, a 16-current limiting resistor box, a 17-current limiting resistor, an 18-pressing plate, a 19-insulating gasket, a 20-stepped structure, a 21-heat insulating pad, a 22-temperature sensor, a 23-temperature sensor output end, a 24-Internet of things terminal, a 2401-inlet interface, a 2402-analysis processing module and a 2403-communication module.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings:

fig. 1 is a schematic diagram of the overall structure of the sensor. In fig. 1, the ready-package live-line operation electric measurement internet-of-things sensor comprises an opening current transformer (1), a movable shaft (2), a locking structure (3), a closed iron core (4), a current transformer output end (5), a conductor sheet (6), a spiral electricity taking pin (7), a baffle plate (8), a voltage leading-out end (9), a voltage auxiliary end (10), a wire (11), an outlet interface (12), a voltage transformer (13), a voltage transformer input end (14), a voltage transformer output end (15), a current limiting resistor box (16), a current limiting resistor (17), a pressing plate (18), an insulating gasket (19), a stepped structure (20), an insulating gasket (21), a temperature sensor (22) and a temperature sensor output end (23).

In the figure 1, an open current transformer (1) is of a U-shaped structure with an opening on the side, a movable shaft (2) is arranged at the upper end of the opening, a locking structure (3) is arranged at the lower end of the opening, a closed iron core (4) is connected with the movable shaft (2), and a closed magnetic circuit is formed by the closed iron core and the open current transformer (1) after the closed iron core is locked by the locking structure (3).

In the figure 1, a conductor sheet (6) is fixed on the side surface of one arm of a U-shaped structure of an open current transformer (1), a spiral electricity taking pin (7) penetrates through a screw hole in the conductor sheet (6), a baffle plate (8) is fixed on the side surface of the other arm, and the conductor sheet (6) is opposite to the baffle plate (8). The contact surface of the baffle (8) and the lead (11) is a concave symmetrical stepped structure (20), and the central point is aligned with the central axis of the spiral structure of the spiral electricity taking needle (7). The wire (11) can be better stabilized when the spiral electricity taking needle (7) is used for skin breaking, the wire is not twisted due to the rotation of the spiral electricity taking needle (7), and meanwhile, the wire is automatically centered when skin breaking and electricity taking are carried out, so that the spiral electricity taking needle (7) can conveniently enter the wire (11) from the optimal position. Moreover, the concave symmetrical step-shaped structure (20) can be suitable for the leads (11) with different wire diameters, and a pair of symmetrical steps can clamp the leads (11).

In the figure 1, the heat insulation pad (21) is fixed on the surface of the concave symmetrical stepped structure (20) on the baffle (8), and the probe of the temperature sensor (22) is embedded at the central point of the baffle (8), penetrates out of the heat insulation pad (21) and is tightly contacted with the lead (11). After the lead (11) is installed, a heat insulation space is formed between the heat insulation pad (21) and the insulation sheath of the lead (11), so that the space is slightly influenced by the temperature of the external environment, and therefore, the probe of the temperature sensor (22) is positioned in the space and can accurately reflect the temperature change of the lead (11).

In fig. 1, the spiral electricity-taking needle (7) is structurally divided into three parts, the head part is of a spiral structure, the top part is of a needle shape, the middle part is of a thread structure matched with a screw hole on a conductor piece (6), and the tail part is of an insulating wrench; the insulating spanner can ensure that field workers can safely carry out live loading and unloading without any other tools. Through holes are formed in the centers of the pressing plate (18) and the insulating gasket (19), and the diameter of each through hole is smaller than the outer diameter of a thread in the middle of the spiral electricity taking needle (7) and larger than or equal to the outer diameter of a spiral structure at the head of the spiral electricity taking needle (7). When the spiral electricity taking needle (7) is rotated to extrude into the lead (11), the pressure plate (18) and the insulating gasket (19) are blocked by the thread in the middle of the spiral electricity taking needle (7) to move towards the lead (11) until the pressure plate is pressed on the outer surface of the lead (11). The pressing plate (18) is made of arc-shaped hard insulating materials, and the insulating gasket (19) is made of flexible insulating materials. The arc-shaped pressing plate (18) plays a role in supporting and pressing the insulating gasket (19), and the insulating gasket (19) made of flexible insulating materials is used for better adhering to the broken position of the lead (11) and playing a role in sealing.

In fig. 1, one terminal of the input end (14) of the voltage transformer (13) is connected with the conductor sheet (6) through a current-limiting resistor (17) clamped in a current-limiting resistor box (16), and the other terminal is connected with a neutral line, a zero line, a ground line or another phase line; the current limiting resistor (17) is installed in the current limiting resistor box (16) by adopting a buckle, so that the current limiting resistor (17) can be put in or taken out at any time, is convenient to replace, or the resistance value of the current limiting resistor is adjusted according to the voltage grade.

In fig. 1, the open current transformer (1), the voltage transformer (13), the current limiting resistor box (16) and other components are integrated, so that the integration level of the whole is improved, and the structure is more compact.

In fig. 1, the voltage outlet (9) is connected to the conductor strip (6), and the voltage auxiliary (10) is connected to the neutral, ground or another phase line. The outgoing line interface (12) is in a terminal strip form, and the current transformer output end (5), the voltage transformer output end (11) and the temperature sensor output end (23) are connected to the outgoing line interface (12) through a shielded twisted pair, so that collected current, voltage and temperature signals are provided for external intelligent measurement and control equipment. The voltage leading-out end (9) and the voltage auxiliary end (10) are also connected to the outgoing line interface (12) through shielded wires to provide power for external intelligent measurement and control equipment.

When the transformer is installed in an electrified mode, firstly, a pressing plate (18) and an insulating gasket (19) are sequentially sleeved on a spiral electricity taking needle (7), then a lead (11) is placed into the transformer from an opening of an open current transformer (1), the lead (11) is pressed in a concave symmetrical stepped structure (20) of a baffle (8), a closed iron core (4) is closed, and the transformer is locked through a locking structure (3); slowly rotating the insulating spanner at the tail part of the spiral electricity taking needle (7), determining that the tip of the spiral electricity taking needle (7) is positioned at the center of the lead (11) when the spiral electricity taking needle (7) is contacted with the lead (11), and then forcibly rotating the rotating spanner (15) to realize the electrical connection between the spiral electricity taking needle (7) and the inner conductor of the lead (11) until the insulating gasket (19) is completely attached to the broken skin part of the lead (11).

Fig. 2 is a schematic diagram of a terminal structure of the internet of things. In fig. 2, the terminal (24) of the internet of things includes an incoming line interface (2401), an analysis processing module (2402), and a communication module (2403). The terminal (24) of the Internet of things is connected with the outgoing line interface (12) through the incoming line interface (2401) to obtain signals and power sources collected by the sensor; the analysis processing module (2402) collects, analyzes and processes the analog signals of voltage, current and temperature transmitted by the wire inlet interface (2401), and exchanges data with the outside in a wireless communication mode through the communication module (2403).

When the sensor is installed on outdoor or unattended equipment, data needs to be sent to a management center, monitoring items and alarm thresholds are set through an analysis processing module (2402), the data are sorted, analyzed and judged, and finally the data and analysis results are sent back to the management center through a communication module (2403), so that multiple functions of data acquisition, recording, analysis, judgment, early warning, alarming, uploading and the like are achieved, and the complete intelligent electric Internet of things sensor is formed.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. But ready-package live working electrical measurement thing networking sensor, its characterized in that: the device comprises an open current transformer (1), a movable shaft (2), a locking structure (3), a closed iron core (4), a current transformer output end (5), a conductor sheet (6), a spiral electricity taking pin (7), a baffle plate (8), a voltage leading-out end (9), a voltage auxiliary end (10), a lead (11) and an outlet interface (12);

the open current transformer (1) is of a U-shaped structure with an opening on the side face, the upper end of the opening is provided with a movable shaft (2), the lower end of the opening is provided with a locking structure (3), a closed iron core (4) is connected with the movable shaft (2), and forms a closed magnetic circuit with the open current transformer (1) after being locked by the locking structure (3), and the output end (5) of the current transformer leads out signals of the open current transformer (1);

the conductor sheet (6) is fixed on one arm of a U-shaped structure of the open current transformer (1), the spiral electricity taking pin (7) penetrates through a screw hole in the conductor sheet (6), the baffle (8) is fixed on the other arm, and the conductor sheet (6) is opposite to the baffle (8);

the spiral electricity taking needle (7) is structurally divided into three parts, the head part is of a spiral structure, the top part is of a needle shape, the middle part is of a thread structure matched with a screw hole on the conductor piece (6), and the tail part is of a screw cap or an insulating spanner;

the voltage leading-out end (9) is connected with the conductor piece (6), the voltage auxiliary end (10) is connected with a neutral line, a zero line, a ground line or another phase line, and when the spiral electricity taking needle (7) penetrates through a lead (11) to be in contact with an inner conductor of the spiral electricity taking needle, the voltage leading-out end (9) and the voltage auxiliary end (10) obtain voltage signals;

the output end (5) of the current transformer, the voltage leading-out end (9) and the voltage auxiliary end (10) are gathered to the outlet interface (12).

2. The ready-package live-line operation electric measurement internet-of-things sensor according to claim 1, characterized in that: the device comprises a voltage transformer (13), a voltage transformer input end (14), a voltage transformer output end (15), a current-limiting resistance box (16) and a current-limiting resistance (17);

one terminal of a voltage transformer input end (14) of the voltage transformer (13) is connected with the conductor sheet (6) through a current-limiting resistor (17) clamped in a current-limiting resistor box (16), and the other terminal is connected with a neutral line, a zero line, a ground wire or another phase line to obtain an input voltage signal of the voltage transformer (13);

the output end (15) of the voltage transformer leads out the signals converted by the voltage transformer (13) and collects the signals to the outlet interface (12);

the voltage transformer (13) and the current limiting resistance box (16) are integrated with the open current transformer (1).

3. The ready-package live-line operation electric measurement internet-of-things sensor according to claim 1, characterized in that: the spiral electricity taking needle comprises a pressing plate (18) and an insulating gasket (19), wherein through holes are formed in the center of the pressing plate, the diameter of each through hole is smaller than the outer diameter of a thread in the middle of the spiral electricity taking needle (7) and larger than or equal to the outer diameter of a spiral structure at the head of the spiral electricity taking needle (7); the pressing plate (18) is made of arc-shaped hard insulating materials, and the insulating gasket (19) is made of flexible insulating materials.

4. The ready-package live-line operation electric measurement internet-of-things sensor according to claim 1, characterized in that: the contact surface of the baffle (8) and the lead (11) is a concave symmetrical stepped structure (20), and the central point is aligned with the central axis of the spiral structure of the spiral electricity taking needle (7).

5. The ready-package live-line operation electric measurement internet-of-things sensor according to claim 1, characterized in that: comprises a heat insulation pad (21), a temperature sensor (22) and a temperature sensor output end (23);

the heat insulation pad (21) is fixed on the surface of the baffle (8), a probe of the temperature sensor (22) is embedded in the center point of the baffle (8), penetrates out of the heat insulation pad (21) and is in close contact with the lead (11), and the output end (23) of the temperature sensor leads out signals of the temperature sensor (22) and collects the signals to the outlet interface (12).

6. The ready-package live-line operation electric measurement internet-of-things sensor according to claim 1, characterized in that: the system comprises an Internet of things terminal (24) which comprises an incoming line interface (2401), an analysis processing module (2402) and a communication module (2403);

the terminal (24) of the Internet of things is connected with the outgoing line interface (12) through the incoming line interface (2401) to obtain signals and power sources collected by the sensor; the analysis processing module (2402) collects, analyzes and processes the analog signals transmitted by the incoming line interface (2401), and exchanges data with the outside in a wired or wireless mode through the communication module (2403).

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