CN219676097U - Pluggable installation structure of electricity parameter acquisition device - Google Patents

Abstract

The utility model discloses a pluggable installation structure of an electric parameter acquisition device, which is used for being electrically connected with a cable connected with tested equipment in series through a lead; the mounting structure comprises a slot, the slot is used for inserting a plug of the electricity consumption parameter acquisition device, a control circuit is arranged in the mounting structure, the control circuit realizes alternative on-off of the first circuit and the second circuit by utilizing the cooperation of a relay coil and a normally closed switch of the relay, and even if a sensor is not inserted in the mounting structure, the tested equipment can be in a normal working state, the influence of the existence of the sensor is avoided, and the cable is not required to be cut and assembled again; the technical problems that the sensor is complex to assemble and disassemble and the original circuit of the tested equipment is influenced during assembly and disassembly, so that the tested equipment needs to be stopped and restarted are solved; the sensor has the advantages of simple structure, convenient installation and disassembly of the sensor, and the like.

Description

Pluggable installation structure of electricity parameter acquisition device

Technical Field

The utility model relates to the field of installation of power consumption parameter sensors, in particular to a pluggable power consumption parameter acquisition device installation structure.

Background

The electric power internet of things refers to that advanced technologies such as sensors, communication technology and cloud computing are applied to an electric power system, and information sharing, data transmission and intelligent control among various devices are achieved. Through gathering and processing a large amount of real-time data, the electric power internet of things can help improving the electric power system operation efficiency, saving energy, enhancing user experience, reducing cost and other aspects. The electric power internet of things is widely applied to the fields of power grid automation, power distribution automation, intelligent building, energy management, electric automobile charging and the like.

The electric power internet of things is used for connecting various devices and realizing autonomous adjustment, remote monitoring and real-time control are realized by using the electric power internet of things, the safety, reliability and stability of a power grid are improved, and the power supply quality and the power supply efficiency can be improved; adopt multiple sensor in the building to collect and analyze energy use data through electric power thing networking, realize monitoring and management and control indoor temperature, humidity, air quality, illumination etc. improve energy utilization efficiency and user experience.

The equipment commonly used in the electric power internet of things comprises a sensor, communication equipment, a data collector, a cloud computing server and the like. The common sensors in the electric power Internet of things comprise a voltage sensor, a current sensor, a temperature sensor, a humidity sensor, a weight sensor, an optical sensor, an acceleration sensor, a sound sensor and the like. The voltage and current sensor can monitor the voltage and current of the electric equipment or the components and the change condition.

The voltage and current sensors in the prior art are often required to be directly connected with a cable during installation, and the wiring of the sensors are required to be directly connected with the cable in advance so as to connect the sensors into a circuit, so that the requirement of the electric power Internet of things on monitoring of electricity consumption parameters is met. Taking a current sensor as an example, the current sensor needs to be connected in series into a circuit to monitor current, and if the current sensor is damaged and needs to be maintained, the whole circuit is powered off, so that tested equipment cannot normally operate.

Therefore, the utility model provides an easily-detachable installation structure of the electricity parameter acquisition device, and the installation or the detachment process does not affect the on-off and the integrity of the circuit of the cable, and the rewiring is not needed.

Disclosure of Invention

The utility model aims to provide a pluggable installation structure of an electric parameter acquisition device, which aims to solve the technical problems that a sensor is complex to disassemble and assemble and the original circuit of tested equipment is influenced during disassembly and assembly, so that the tested equipment needs to be stopped and restarted.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the pluggable installation structure of the electricity consumption parameter acquisition device is used for being electrically connected with a cable connected with tested equipment in series through a wire; the mounting structure comprises a slot, wherein the slot is used for inserting an electric parameter sampling connector of the electric parameter acquisition device, a connector pin is arranged on the electric parameter sampling connector, a guide pin is arranged at the bottom of the slot, and the connector pin can be in contact electrical connection with the guide pin;

a control circuit is arranged in the mounting structure and comprises a first circuit and a second circuit, the first circuit and the second circuit are connected in parallel, and a normally-closed switch of the relay is arranged on the first circuit; the slot is positioned in the second circuit; the second circuit is also coupled with a current transformer, and the current transformer is electrically connected with a rectifier which can convert alternating current into direct current; the rectifier is electrically connected with a relay coil, and the relay coil can control the on-off of the normally closed switch of the relay.

The working principle of the utility model is as follows: the relay coil is matched with a normally closed switch of the relay to realize the alternative on-off of a first circuit and a second circuit, and particularly, when the relay coil is in a power-off state, the normally closed switch of the relay is in a closed state, at the moment, the first circuit is a passage, the second circuit is an open circuit, a circuit of the tested equipment is connected with the first circuit in series, and the tested equipment normally works; when the relay coil is in an electrified state, the normally-closed switch of the relay is in an off state, at the moment, the first circuit is in an off state, the second circuit is in a circuit state, and at the moment, the slot is connected with the tested equipment in series and is in circuit communication, so that the sensor can measure parameters of the tested equipment while the tested equipment normally works, and the accuracy of a measurement result can be ensured.

As the preferred scheme of rectifier, the rectifier is bridge rectifier, the rectifier includes two alternating current input, two alternating current input respectively with current transformer's both ends are connected, the rectifier still includes direct current output and direct current input, the direct current output of rectifier with relay coil's input is connected, relay coil's output with the direct current input of rectifier is connected, forms the return circuit.

Four diodes are arranged in the bridge rectifier, are in butt joint, are connected and form a quadrilateral circuit topology structure, so that two opposite tubes are conducted when current generated by the current transformer is input into the positive half part of the sine wave, and positive output is obtained; when the negative half of the sine wave is input, the other two pipes are conducted, and the two pipes are reversely connected, so that the output is also the positive half of the sine wave, and the conversion of the alternating current into the direct current is realized.

As the preferable scheme of the slot structure, the side wall of the middle section of the slot is provided with an elastic sheet, and the elastic sheet extends obliquely from the side wall of the slot towards the center of the slot; when the sensor is positioned in the slot, the elastic sheet can be abutted with the side wall of the sensor and apply pressure, so that the sensor is not easy to fall off from the slot; when the sensor is pulled out of the slot, the elastic sheet is reset and returns to an inclined extending state from the side wall of the slot towards the center of the slot.

As a preferable scheme of the slot structure, a locking structure is arranged in the slot and used for locking the electric parameter sampling connector so as to ensure that the sensor is firmly installed.

As one implementation mode of the locking structure, a threaded hole is formed in the side of the top of the slot, a connecting piece is sleeved on the electrical parameter sampling connector, a through hole is formed in the connecting piece corresponding to the threaded hole, the connecting piece is fixedly connected with the mounting structure through a screw, locking of the electrical parameter sampling connector is achieved, and accidental falling or loosening of the sensor is prevented.

As another implementation mode of the locking structure, a clamping groove is formed in the inner side wall of the slot, a convex clamping block is arranged on the corresponding side wall of the electrical parameter sampling connector, the clamping block can be clamped with the clamping groove, locking of the electrical parameter sampling connector is achieved, and accidental falling or loosening of the sensor is prevented.

Preferably, the control circuit is further provided with a signal amplifier, an input end of the signal amplifier is connected with an output end of the rectifier, and an output end of the signal amplifier is connected with an input end of the relay coil and used for amplifying current output by the rectifier, so that the working state of the relay coil is more stable.

Preferably, the normally closed switch of the relay and the relay coil are packaged in the same relay, and the rated voltage range of the relay is 12V-240V.

In order to enable the relay to adapt to higher working voltage conditions, preferably, a transformer is further arranged in the control circuit, and the transformer is used for adjusting the voltage loaded on the relay coil so as to adapt to the voltage requirement of the normally closed relay.

Preferably, the transformer is a double-winding transformer, and the double-winding transformer comprises two groups of coils wound with wires, namely a main coil and a secondary coil; the two ends of the primary coil of the transformer are respectively and electrically connected with the two ends of the current transformer, the two ends of the secondary coil are respectively and electrically connected with the two alternating current input ends of the rectifier, the direct current output end of the rectifier is connected with the input end of the relay coil, and the output end of the relay coil is connected with the direct current input end of the rectifier to form a loop.

Preferably, the installation structure is provided with a plurality of slots, the slots are arranged in parallel, each slot can be respectively matched with the same or different electrical parameter sampling connectors, and the electrical parameter sampling connectors are M8 plugs or M12 plugs or BNC plugs or DIN plugs or USB plugs or RJ45 plugs.

In this way, the size of each slot and the guide pins are adaptively designed according to different electrical parameter sampling connectors, so that the mounting structure can have wider adaptability and can be widely applied.

The technical scheme of the utility model has the following beneficial effects: the mounting structure disclosed by the utility model utilizes the cooperation of the relay coil and the normally closed switch of the relay to realize the alternative on-off of the first circuit and the second circuit, and even if the sensor is not inserted in the mounting structure, the tested equipment can be in a normal working state and is not influenced by the existence of the sensor, and the cable is not required to be cut and assembled again; the technical problems that the sensor is complex to assemble and disassemble and the original circuit of the tested equipment is influenced during assembly and disassembly, so that the tested equipment needs to be stopped and restarted are solved; the sensor has the advantages of simple structure, convenient installation and disassembly of the sensor, and the like.

Drawings

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of the installation plane position of the installation structure.

Fig. 2 is a schematic diagram of an internal circuit of the mounting structure of the present utility model.

FIG. 3 is a cross-sectional view of a socket according to the present utility model.

Fig. 4 is a schematic diagram of a control circuit with a signal amplifier according to the present utility model.

Fig. 5 is a schematic diagram of a control circuit with a transformer according to the present utility model.

FIG. 6 is a schematic diagram of a control circuit with multiple slots according to the present utility model.

Reference numerals illustrate: 1. a device under test; 2. a cable; 3. an electrical parameter sampling joint; 4. a connector pin; 5. a mounting structure; 51. a slot; 511. a spring plate; 512. a guide pin; 52. a first circuit; 521. a relay normally closed switch; 53. a second circuit; 531. a current transformer; 532. a relay coil; 533. a signal amplifier; 534. a transformer; 54. a terminal; 6. an alternating current power supply; 7. a rectifier.

Detailed Description

In order to better understand the purpose, structure and function of the present utility model, the following describes in further detail a pluggable electrical parameter acquisition device installation structure according to the present utility model with reference to the accompanying drawings.

The utility model can be applied to sensors, such as current sensors, which need to be connected in series with the circuit of the tested equipment in the electric power Internet of things, and solves the technical problems that the sensor is complicated to assemble and disassemble and the original circuit of the tested equipment is influenced when the sensor is assembled and disassembled, so that the tested equipment needs to be stopped and restarted.

Based on the above-mentioned technical problems, as shown in fig. 1 to 3, the utility model discloses a pluggable electric parameter acquisition device mounting structure 5, which is used for being electrically connected with a cable 2 connected with a tested device 1 in series through a wire;

the mounting structure 5 comprises a slot 51, wherein the slot 51 is used for inserting an electrical parameter sampling connector 3 of the electrical parameter acquisition device, a connector pin 4 is arranged on the electrical parameter sampling connector 3, a guide pin 512 is arranged at the bottom of the slot 51, and the connector pin 4 can be in contact electrical connection with the guide pin 512; the guide pins 512 ensure that the sensor is properly aligned and inserted into the slot;

a control circuit 55 is arranged in the mounting structure 5, the control circuit 55 comprises a first circuit 52 and a second circuit 53, the first circuit 52 and the second circuit 53 are connected in parallel, and a normally closed relay switch 521 is arranged on the first circuit 52; the slot 51 is located in the second circuit 53; the second circuit 53 is further coupled with a current transformer 531, the current transformer 531 is electrically connected with a rectifier 7, and the rectifier 7 can convert the alternating current into direct current; the rectifier 7 is electrically connected with a relay coil 532, and the relay coil 532 can control the on-off of the normally closed relay switch 521.

The working principle of the utility model is as follows: the cooperation of the relay coil 532 and the relay normally-closed switch 521 is utilized to realize the alternative on-off of the first circuit 52 and the second circuit 53, specifically, when the relay coil 532 is in a power-off state, the relay normally-closed switch 521 is in a closed state, at this time, the first circuit 52 is a circuit, the second circuit 53 is an open circuit, the circuit of the tested device 1 is connected in series with the first circuit 52, and the tested device 1 normally works; when the relay coil 532 is in an on state, the normally closed switch 521 of the relay is in an off state, at this time, the first circuit 52 is open, the second circuit 53 is closed, and at this time, the slot 51 is connected in series with the device 1 under test and is in circuit communication, so that the sensor can measure the parameter of the device 1 under test while the device 1 under test works normally, and the measurement result can be ensured to be accurate.

The working process of the utility model is as follows: when the electrical parameter measurement needs to be performed on the tested device 1, at this time, the sensor is plugged into the slot 51, the second circuit 53 is communicated, then a current passes through the second circuit 53, the current transformer 531 can sense the current, the current transformer 531 is coupled with the current in the second circuit 53, a coupling current is generated in the current transformer 531, the coupling current is input into the rectifier 7, the rectifier 7 converts the alternating current into direct current and then outputs the direct current to the input end of the relay coil 532, so that the relay works, the normally closed switch 521 of the relay is caused to be disconnected, and the first circuit 52 is further disconnected, at this time, the tested device 1 is connected with the second circuit 53 where the sensor is located, and the current in the second circuit 53 detected by the sensor is the current flowing through the tested device 1, so that the detection of the electrical parameter of the tested device 1 is realized; when the electrical parameter measurement is not required to be performed on the tested device 1 or the electrical parameter sensor is required to be detached and replaced, at this time, no sensor is inserted into the slot 51, then no current passes through the second circuit 53, and then no current passes through the current transformer 531, then the relay coil 532 does not work, namely, the normally closed relay switch 521 can be kept in a closed state all the time, the first circuit 52 is conducted, then the current passes through the first circuit 52 at the normally closed relay switch 521, the tested device 1 can work normally without being influenced by the existence of the sensor, and the cable 2 is not required to be cut and assembled again.

Specifically, the current transformer 531 (Current Transformer, CT), also called a current sensor, is an electromagnetic device composed of a closed core and windings according to the principle of electromagnetic induction, the number of turns of its primary winding is small, and the primary winding is connected in series with the line of the current to be measured, so that it always has all the current flowing through the line, the number of turns of its secondary winding is relatively large, and is connected in series with the measuring instrument and the protection circuit, and the current transformer 531 is always closed in operation, so that when the primary current changes, its secondary current also changes, and the magnitude of the primary current does not change, so that the current value input into the measuring instrument is equal.

Specifically, the rectifier 7 is a bridge rectifier, four diodes are arranged in the bridge rectifier, two diodes are in butt joint with each other, the four diodes are connected to form a quadrilateral circuit topology structure, and two opposite tubes are conducted when the positive half part of the sine wave is input to obtain positive output; when the negative half of the sine wave is input, the other two pipes are conducted, and the two pipes are reversely connected, so that the output is also the positive half of the sine wave, and the conversion of the alternating current into the direct current is realized.

Specifically, the rectifier 7 includes two ac input ends, the two ac input ends are respectively connected to two ends of the current transformer 531, the rectifier 7 further includes a dc output end and a dc input end, the dc output end of the rectifier 7 is connected to the input end of the relay coil 532, and the output end of the relay coil 532 is connected to the dc input end of the rectifier 7 to form a loop; in this way, the current generated by the current transformer 531 turns on the two diodes according to the change condition of the sine wave of the ac, so that the current flows unidirectionally, the ac is changed into dc, and the dc is output to the relay coil.

Specifically, the mounting structure 5 has two terminals 54 thereon, and one end of each terminal 54 is electrically connected to the cable 2; the other end of each of the terminals 54 is electrically connected to a bus of an internal circuit of the mounting structure 5, the bus being a common wire for connecting a plurality of branches in a circuit, that is, the common wire after the first circuit 52 and the second circuit 53 are connected in parallel; the lead pin 512 of the socket 51 is electrically connected to the second circuit 53.

As a preferable solution of the slot structure, a spring piece 511 is disposed on a side wall of the middle section of the slot 51, and the spring piece 511 extends obliquely from the side wall of the slot 51 toward the center of the slot; when the sensor is positioned in the slot, the elastic sheet 511 can be abutted against the side wall of the sensor and exert pressure, so that the sensor is not easy to fall off from the slot; when the sensor is pulled out from the socket, the spring piece 511 is reset and returns to the state of being inclined and extended from the side wall of the socket 51 toward the center of the socket.

As a preferred solution of the slot structure, a locking structure is provided inside the slot 51 for locking the electrical parameter sampling connector 3 to ensure a firm installation of the sensor.

As one implementation manner of the locking structure, a threaded hole is formed at the side of the top of the slot 51, a connecting piece is sleeved on the electrical parameter sampling connector 3, a through hole is formed in the connecting piece corresponding to the threaded hole, the connecting piece is fixedly connected with the mounting structure 5 through a screw, locking of the electrical parameter sampling connector 3 is achieved, and accidental falling or loosening of a sensor is prevented.

As another implementation manner of the locking structure, a clamping groove is formed in the inner side wall of the slot 51, a protruding clamping block is arranged on the corresponding side wall of the electrical parameter sampling connector 3, the clamping block can be clamped with the clamping groove, locking of the electrical parameter sampling connector 3 is achieved, and accidental falling or loosening of a sensor is prevented.

In a specific application, since the electrical parameter sampling connectors 3 of different brands and types may be different, the positions and the numbers of the pins in the plug may be different, so that the slot 51 and the guide pins 512 need to be designed appropriately according to the actual plug shape and the pin positions and numbers, so as to ensure that the electrical parameter sampling connectors 3 can be smoothly inserted into the slot 51 and can be smoothly communicated with the guide pins 512, so as to ensure that a circuit is smoothly communicated.

Preferably, as shown in fig. 4, the control circuit 55 is further provided with a signal amplifier 533, an input terminal of the signal amplifier 533 is connected to an output terminal of the rectifier 7, and an output terminal of the signal amplifier 533 is connected to an input terminal of the relay coil 532; the current output from the rectifier 7 is amplified to stabilize the operation state of the relay coil 532.

Specifically, the relay coil 532 adopted in the scheme is connected with the rectifier 7, so that the relay coil can be adapted to the alternating current power supply 6, and when the relay is implemented, the normally closed switch and the relay coil are packaged in the same relay, and the rated voltage range of the relay is 12V-240V; the relay comprises a relay coil 532 and a relay normally-closed switch 521, the relay coil 532 and the relay normally-closed switch 521 are mutually independent, and the coil and the switch can be respectively connected into different circuits; the coil in the relay generates a magnetic field by adding certain voltage or current to the coil, so that the magnet attracts the normally-closed contact to disconnect the current path; when the coil is not provided with an electric signal, the relay is in a normally closed state; when the coil receives a proper control signal, the electromagnetic relay switch turns over, and the normally closed contact port is correspondingly opened.

In order to enable the relay to adapt to higher operating voltage conditions, as shown in fig. 5, a transformer 534 is preferably further provided in the control circuit 55 for adjusting the voltage applied to the relay coil 532 to adapt to the voltage requirement of the relay.

As one embodiment of the transformer 534, the transformer 534 is installed between the rectifier 7 and the relay coil 532.

In specific implementation, the transformer 534 is a double-winding transformer 534, and the double-winding transformer 534 includes two groups of coils wound with wires, namely a main coil and a secondary coil; the two ends of the primary coil of the transformer 534 are respectively and electrically connected with the two ends of the current transformer 531, the two ends of the secondary coil are respectively and electrically connected with the two ac input ends of the rectifier 7, the dc output end of the rectifier 7 is connected with the input end of the relay coil 532, and the output end of the relay coil 532 is connected with the dc input end of the rectifier 7 to form a loop.

The main coil and the sub-coil are inductively combined with each other, and when an input signal is applied to the main coil, the same voltage and current are generated in the sub-coil due to electromagnetic induction; when an input signal is applied to the main coil, the same voltage and current are generated in the sub-coil due to electromagnetic induction.

The transformer 534 is capable of raising the voltage applied to the relay coil 532 and lowering the voltage applied to the relay coil 532, and then, as will be described in terms of lowering the voltage applied to the relay coil 532, when the voltage applied to the relay coil 532 is greater than the rated voltage, the transformer 534 is designed to convert the high voltage and the large current into the low voltage and the small current according to the required conversion ratio, and then the converted power signal is transferred to the relay, for example, if there are 1000 turns in the main coil and 100 turns in the sub coil, the voltage of the input signal is lowered to one tenth of the output signal.

Preferably, as shown in fig. 3 and fig. 6, the mounting structure 5 is provided with a plurality of slots 51, and the plurality of slots are arranged in parallel, each slot can be respectively adapted to the same or different electrical parameter sampling connectors 3, and the electrical parameter sampling connectors 3 are M8 plugs or M12 plugs or BNC plugs or DIN plugs or USB plugs or RJ45 plugs.

The M8 plug is generally used in the field of industrial automation, is a small waterproof interface form and can support 2-4 pins; the M12 plug is wider than the M8 plug, is mainly used for temperature, humidity and other sensors, supports 3-8 pins and has A/B two key directions for distinguishing; the BNC plug is mainly used for inputting and outputting high-frequency signals, such as the fields of video monitoring, antenna input and the like, and supports coaxial line transmission; DIN plugs, usually shown as circles or squares, find wide application in instrumentation, audio, video, and power; USB plugs are generally used for data transmission, have universality and standardization advantages, and are suitable for being connected to computers and other devices; RJ45 plugs are commonly used in local area networks and network communications, often as ethernet interfaces.

In this way, the dimensions of each slot and the guiding pins 512 are designed to adapt to different electrical parameter sampling connectors 3, so as to simultaneously adapt to multiple electrical parameter sampling connectors 3, thus enabling the mounting structure 5 to have wider adaptability and wide application.

The pluggable electric parameter acquisition device mounting structure disclosed by the utility model has the following technical effects: the mounting structure disclosed by the utility model utilizes the cooperation of the relay coil and the normally closed switch of the relay to realize the alternative on-off of the first circuit and the second circuit, and even if the sensor is not inserted in the mounting structure, the tested equipment can be in a normal working state and is not influenced by the existence of the sensor, and the cable is not required to be cut and assembled again; the technical problems that the sensor is complex to assemble and disassemble and the original circuit of the tested equipment is influenced during assembly and disassembly, so that the tested equipment needs to be stopped and restarted are solved; the sensor has the advantages of simple structure, convenient installation and disassembly of the sensor, and the like.

It will be understood that the utility model has been described in terms of specific embodiments/examples, and that various changes in and equivalents to these features and embodiments/examples may be made by those skilled in the art without departing from the spirit and scope of the utility model. Modifications to these features and embodiments/examples may be made within the teachings of the present utility model to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. The embodiments/examples described herein are some, but not all embodiments/examples of the utility model. The components of the embodiments/embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of specific embodiments/examples of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected specific embodiments/examples of the utility model. Therefore, it is intended that the utility model not be limited to the particular embodiments/examples disclosed herein, but that the particular embodiments/examples disclosed herein will include all other embodiments/examples disclosed herein as would be apparent to one skilled in the art without the benefit of this disclosure.

Claims (10)

1. The pluggable installation structure of the electricity consumption parameter acquisition device is used for being electrically connected with a cable connected with tested equipment in series through a wire; the installation structure is characterized by comprising a slot, wherein the slot is used for inserting an electric parameter sampling connector of the electric parameter acquisition device, a connector pin is arranged on the electric parameter sampling connector, a guide pin is arranged at the bottom of the slot, and the connector pin can be in contact electrical connection with the guide pin;

a control circuit is arranged in the mounting structure and comprises a first circuit and a second circuit, the first circuit and the second circuit are connected in parallel, and a normally-closed switch of the relay is arranged on the first circuit; the slot is positioned in the second circuit; the second circuit is also coupled with a current transformer, and the current transformer is electrically connected with a rectifier which can convert alternating current into direct current; the rectifier is electrically connected with a relay coil, and the relay coil can control the on-off of the normally closed switch of the relay.

2. The pluggable electrical parameter collecting device mounting structure according to claim 1, wherein the rectifier is a bridge rectifier, the rectifier comprises two ac input ends, the two ac input ends are respectively connected with two ends of the current transformer, the rectifier further comprises a dc output end and a dc input end, the dc output end of the rectifier is connected with the input end of the relay coil, and the output end of the relay coil is connected with the dc input end of the rectifier to form a loop.

3. The pluggable electrical parameter collecting device mounting structure according to claim 2, wherein the middle section side wall of the slot is provided with a spring piece, and the spring piece extends obliquely from the side wall of the slot towards the center of the slot.

4. The pluggable electric parameter acquisition device mounting structure according to claim 3, wherein a threaded hole is formed in the side of the top of the slot, a connecting piece is sleeved on the electric parameter sampling connector, a through hole is formed in the connecting piece corresponding to the threaded hole, the connecting piece is fixedly connected with the mounting structure through a screw, locking of the electric parameter sampling connector is achieved, and accidental falling or loosening of a sensor is prevented.

5. The pluggable electrical parameter collecting device mounting structure according to claim 3, wherein a clamping groove is formed in the inner side wall of the slot, a convex clamping block is arranged on the corresponding side wall of the electrical parameter sampling connector, the clamping block can be clamped with the clamping groove, locking of the electrical parameter sampling connector is achieved, and accidental falling or loosening of a sensor is prevented.

6. The pluggable electrical parameter collecting device mounting structure according to claim 1, wherein a signal amplifier is further arranged in the control circuit, an input end of the signal amplifier is connected with an output end of the rectifier, and an output end of the signal amplifier is connected with an input end of the relay coil and is used for amplifying current output by the rectifier.

7. The pluggable electrical parameter acquisition device mounting structure of claim 1, wherein the normally closed switch of the relay and the relay coil are packaged in the same relay, and the rated voltage range of the relay is 12-240 v.

8. The pluggable electrical parameter collecting device mounting structure of claim 7, wherein the control circuit is further provided with a transformer for adjusting the voltage loaded on the relay coil.

9. The pluggable electrical parameter acquisition device installation structure of claim 8, wherein the transformer is a double-winding transformer, the double-winding transformer comprises two groups of coils wound with wires, namely a main coil and a secondary coil; the two ends of the primary coil of the transformer are respectively and electrically connected with the two ends of the current transformer, the two ends of the secondary coil are respectively and electrically connected with the two alternating current input ends of the rectifier, the direct current output end of the rectifier is connected with the input end of the relay coil, and the output end of the relay coil is connected with the direct current input end of the rectifier to form a loop.

10. The pluggable electrical parameter collecting device mounting structure according to claim 1, wherein a plurality of slots are arranged on the mounting structure, the slots are arranged in parallel, each slot can be respectively matched with the same or different electrical parameter sampling connectors, and the electrical parameter sampling connectors are M8 plugs or M12 plugs or BNC plugs or DIN plugs or USB plugs or RJ45 plugs.