A smart electricity safety monitoring system based on the Internet of Things

By setting movable fixing components and bent components on the smart electric detector module, the wire replacement process is simplified, and the time-consuming and labor-intensive connection problem in the prior art is solved, efficiency is improved, and safety hazards are reduced through heat dissipation and temperature detection.

CN115372736BActive Publication Date: 2024-12-13FUJIAN YUNTONG POWER ENG CO LTD
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Patent Information

Application Number
CN202210960780.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-11
Publication Date
2024-12-13
Estimated Expiration
2042-08-11

AI Technical Summary

Technical Problem

In the existing smart electricity safety monitoring system, the connection between the wire metal ring plate and the smart electricity detector is tightened and fixed by screws, which is time-consuming and labor-intensive, affecting the replacement efficiency and reducing the working progress efficiency.

Method used

The smart electric detector module with wireless network connection is simplified by setting movable fixing components and bent components on the connector, and the wire replacement process is simplified by the lever principle. The fixing components are fixed and loosened by extruded columns and engaging columns, simplifying the Installation and replacement of wires.

Benefits of technology

It improves the speed and efficiency of wire replacement, reduces the time to tighten traditional screws, enhances working efficiency, and realizes heat dissipation and temperature detection through breathable holes and heat dissipation fins, reminds staff of failures and reduces safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the field of smart electricity technology, and discloses a smart electricity safety monitoring system based on the Internet of Things, whose structure includes a smart electricity detector module, a mobile terminal APP module, and a smart electricity safety management service platform module. The beneficial effects of the present invention are as follows: a fixing component is movably connected to a connector, and a metal ring piece on a wire can be fixed by movably engaging with an extrusion column on the fixing component and a card block in a card block, and then the movable assembly and a movable rod on the connector are movably coordinated, and with the help of the principle of a lever, when the wire needs to be replaced, the pressing plate can be tilted up through an L-shaped plate after pressing the handle, so that the extrusion column moves up and loses the fixation of the wire ring piece, so that the wire can be replaced, avoiding the traditional method of tightening and fixing by screws, saving the time of turning the screws, speeding up the installation and replacement of the wire, making the fixation of the wire more convenient, and improving the work efficiency.
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Description

Technical Field

[0001] The present invention relates to the field of smart electricity technology, and in particular to a smart electricity safety monitoring system based on the Internet of Things. Background Art

[0002] In order to reduce the hidden dangers of electrical fires, it is very important to improve the safety of electrical products. Illegal use of fire and electricity, aging of electrical lines, human violation of fire safety management system and failure to implement fire safety measures may all cause safety hazards. With the widespread application of electricity and the popularization of electrical equipment in all walks of life, improper installation, unreasonable use and untimely maintenance of electrical equipment will cause waste of electricity and even cause electrical fire accidents, endangering personal safety and causing significant losses. With the advancement of science and technology, countries are actively researching and continuously introducing advanced electrical safety technologies, improving and revising electrical safety technical standards and regulations. However, the investigation and feedback of electrical fire hazards only remain at the stage of "handling" investigation. There are still many deficiencies and loopholes in electrical safety detection work. It is particularly important to establish a framework for the investigation and feedback of electrical safety hazards. Therefore, there is a smart and safe electricity monitoring system.

[0003] The current smart and safe electricity monitoring system consists of three core architectures, including: smart electricity detectors, mobile APP, and smart electricity safety management service platform. The smart electricity detector is an important component, which is installed on the distribution box to monitor the indicator data of each smart electricity detector in real time, including temperature, leakage, voltage, current, power, electric energy, etc. The upper and lower ends of the current smart electricity detector need to be connected to the metal ring of the wire. Since the existing smart electricity detector technology is not perfect, the connection between the metal ring of the wire and the smart electricity detector is tightened and fixed by screws, which is very time-consuming and labor-intensive. When the wire needs to be replaced, the screws need to be tightened, which greatly affects the efficiency of replacement and reduces the progress efficiency of the work. Summary of the invention

[0004] 1. Technical Problems to be Solved by the Present Invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a smart electricity safety monitoring system based on the Internet of Things, which has the function of enabling the metal ring of the wire to be replaced more quickly and conveniently, so as to solve the problem that the connection between the metal ring of the wire and the smart electricity detector used in the existing smart electricity safety monitoring system is tightened and fixed by screws, which is very time-consuming and labor-intensive, and when the wire needs to be replaced, the screws need to be tightened, which greatly affects the efficiency of replacement and reduces the progress and efficiency of the work.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions:

[0008] A smart electricity safety monitoring system based on the Internet of Things, whose structure includes a smart electricity detector module, a mobile APP module, and a smart electricity safety management service platform module. The smart electricity detector module is installed in a distribution box, and various electricity indicator data are monitored in real time through the smart electricity detector module. The smart electricity detector module is connected to the smart electricity safety management service platform module through a wireless network. The smart electricity detector module uploads the monitored data to the smart electricity safety management service platform module, and the smart electricity safety management service platform module reminds the user of the safety status of the electricity system through the mobile PP.

[0009] As an optimization, the smart electricity detector module includes a detector body, a display screen, a heat dissipation structure, a connection terminal group, a button, and an alarm structure. The detector body is fixedly connected to a display screen, and a button is provided on one side of the display screen, and the button is movably connected to the detector body. A connection terminal group is fixedly installed on the detector body, and the connection terminal group is symmetrically provided with 14 to 16 groups up and down. The detector body is fixedly connected to a heat dissipation structure, and one side of the heat dissipation structure is fixedly connected to the connection terminal group, and the alarm structure is fixedly connected to the side of the connection terminal group away from the display screen.

[0010] As an optimization, the connecting terminal group includes a connector, a fixed component, a movable component, and a bendable component. The movable component is movably connected to the connector, the fixed component is fixedly connected to the movable component, and the bendable component is movably mounted on the connector.

[0011] The arrangement of the fixing assembly can fix the wire loop on the connector.

[0012] The arrangement of the above-mentioned breaking component can loosen the already fixed fixing component and release the fixation of the wire loop piece.

[0013] As an optimization, the connector includes an inlet port, a locking column, an air vent, a vertical plate, a movable groove, a support column, a movable rod, and a through-hole groove. The connector is provided with an inlet port, and a locking column is fixedly installed on the connector. The locking column is a hollow structure and passes through the connector to connect with the inlet port. Air vents are provided on both sides of the connector. The top of the connector is symmetrically fixedly connected with a vertical plate, and a movable groove is provided in the vertical plate. A support column is provided directly behind the vertical plate. Two support columns are provided and fixedly connected to the connector, and a movable rod is fixedly connected between the two support columns. A through-hole groove is provided on the side of the connector away from the inlet port.

[0014] The arrangement of the above-mentioned engaging columns can movably engage and fix the fixing assembly.

[0015] The provision of the above-mentioned vent holes enables heat between the multiple connection terminal groups to be mutually dissipated.

[0016] The arrangement of the movable groove can drive the fixed component to move up and down.

[0017] As an optimization, the bend assembly includes a handle, a rotating tube, and an L-shaped plate. The handle is fixedly connected to the rotating tube, the rotating tube is movably connected to the movable rod, the bottom of the rotating tube is fixedly connected to the L-shaped plate, and two L-shaped plates are symmetrically arranged.

[0018] The arrangement of the L-shaped plate can utilize the rotating tube to rotate on the movable rod to tilt the fixing assembly so that it loses the fixation of the wire ring piece.

[0019] As an optimization, the moving component consists of a fixed column and a sliding block, and sliding blocks are fixedly installed on both ends of the fixed column, and the sliding blocks are movably connected to the movable groove.

[0020] As an optimization, the fixing assembly includes a pressing plate, an arc groove, a cylindrical through hole, and an extrusion column. The pressing plate is provided with an arc groove, and a cylindrical through hole is provided at one end of the pressing plate away from the arc groove. The cylindrical through hole is fixedly connected to the fixing column, and the bottom of the pressing plate is fixedly connected to the extrusion column.

[0021] The arrangement of the arc groove can better fit the finger force area of ​​the human body.

[0022] The arrangement of the extrusion column can extrude and fix the wire loop.

[0023] As an optimization, the extrusion column is provided with slots at equal intervals, and both upper and lower ends of the slots are provided with chamfers.

[0024] The chamfering arrangement can make the cooperation between the extrusion column and the engaging column smoother through the trapezoidal chamfering.

[0025] As an optimization, a card block is provided in the engaging column, and the card block is movably engaged with the card slot.

[0026] As an optimization, the heat dissipation structure consists of a shell, a dustproof net and a heat dissipation fin. The top of the shell is fixedly connected with the dustproof net, and the heat dissipation fin is fixedly installed inside the shell.

[0027] The provision of the dustproof net can prevent dust from directly entering the heat dissipation fins.

[0028] The arrangement of the heat dissipation fins can dissipate the heat inside the connection terminal group through the air holes.

[0029] As an optimization, the alarm structure consists of a back plate, a temperature sensor and an alarm. The temperature sensors are densely distributed at equal distances on the back plate. The temperature sensors are movably matched with the through-hole grooves. An alarm is fixedly installed on the top of the back plate. The alarm is connected to the temperature sensor through an internal circuit.

[0030] 3. Beneficial effects

[0031] Compared with the prior art, the advantages of the present invention are:

[0032] (1) The present invention is a smart electricity safety monitoring system based on the Internet of Things. A fixing component is movably connected to a connector. The metal ring on the wire is fixed by movably engaging with a squeeze column on the fixing component and a block in the locking column. Then, the movable component and the movable rod on the connector are movably coordinated. With the help of the principle of the lever, when the wire needs to be replaced, the pressing plate can be tilted up by the L-shaped plate after pressing the handle, so that the squeezing column moves up and loses the fixation of the wire ring, so that the wire can be replaced, avoiding the traditional method of tightening and fixing by screws, saving the time of turning the screws, speeding up the installation and replacement of the wire, making the fixation of the wire more convenient, and improving the work efficiency.

[0033] (2) The present invention is an intelligent electricity safety monitoring system based on the Internet of Things. Ventilation holes are provided on both sides of the connector. The heat between the various connection terminals can be circulated through the vents, and then the heat can be discharged through the heat dissipation fins on both sides. At the same time, a temperature sensor is installed on the back of the connector to detect the temperature of each connection terminal. When the temperature is too high, the temperature sensor will transmit a signal to the alarm through the connecting line to generate an alarm, which can remind the staff of the fault and enable the staff to solve it in the first time, thereby reducing the occurrence of safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of a smart electricity safety monitoring system based on the Internet of Things of the present invention;

[0035] Figure 2 It is a structural schematic diagram of the first state of the smart electricity detector module of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the second state of the smart electricity detector module of the present invention;

[0037] Figure 4 is a schematic structural diagram of a plurality of connection terminal groups of the present invention;

[0038] Figure 5 is a schematic structural diagram of a connecting terminal group of the present invention;

[0039] Figure 6 It is a schematic diagram of the exploded structure of the connection terminal group of the present invention;

[0040] Figure 7 is a schematic structural diagram of the connector of the present invention;

[0041] Figure 8 It is a structural schematic diagram of the breaking component of the present invention;

[0042] Fig. 9 It is a structural schematic diagram of the fixing assembly of the present invention;

[0043] Fig.10 It is a schematic diagram of the structure of the connection terminal group of the present invention;

[0044] Fig.11 It is a structural schematic diagram of the heat dissipation structure of the present invention;

[0045] Fig.12 It is a structural schematic diagram of the alarm structure of the present invention.

[0046] Figure numerals: smart electricity detector module-A, mobile APP module-B, smart electricity safety management service platform module-C, detector body-1, display screen-2, heat dissipation structure-3, connection terminal group-4, button-5, alarm structure-6, connector-41, fixed component-42, movable component-43, movable component-44, inlet port-411, locking column-412, air vent-413, vertical plate-414, movable slot-415 , supporting column-416, movable rod-417, through hole groove-418, handle-441, rotating tube-442, L-shaped plate-443, fixing column-431, sliding block-432, pressing plate-421, arc groove-422, cylindrical through hole-423, extrusion column-424, card slot-51, chamfer-52, card block-71, shell-31, dustproof net-32, heat dissipation fin-33, back plate-61, temperature sensor-62, alarm-63. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Embodiment 1

[0049] See also Figure 1-10A smart electricity safety monitoring system based on the Internet of Things, whose structure includes a smart electricity detector module A, a mobile APP module B, and a smart electricity safety management service platform module C. The smart electricity detector module A is installed in a distribution box, and various electricity indicator data are monitored in real time through the smart electricity detector module A. The smart electricity detector module A is connected to the smart electricity safety management service platform module C through a wireless network. The smart electricity detector module A uploads the monitored data to the smart electricity safety management service platform module C, and the smart electricity safety management service platform module C reminds users of the safety status of the electricity system through the mobile APPB.

[0050] Specifically, the smart electricity detector module A includes a detector body 1, a display screen 2, a heat dissipation structure 3, a connection terminal group 4, a button 5, and an alarm structure 6. The display screen 2 is fixedly connected to the detector body 1, and a button 5 is provided on one side of the display screen 2. The button 5 is movably connected to the detector body 1. The connection terminal group 4 is fixedly installed on the detector body 1, and the connection terminal group 4 is symmetrically provided with 14 to 16 groups up and down. The heat dissipation structure 3 is fixedly connected to the detector body 1, and one side of the heat dissipation structure 3 is fixedly connected to the connection terminal group 4. The alarm structure 6 is fixedly connected to the side of the connection terminal group 4 away from the display screen 2.

[0051] Specifically, the connecting terminal group 4 includes a connecting body 41, a fixed component 42, a movable component 43, and an actuating component 44. The movable component 43 is movably connected to the connecting body 41, the fixed component 42 is fixedly connected to the movable component 43, and the actuating component 44 is movably installed on the connecting body 41.

[0052] The arrangement of the fixing assembly 42 can fix the wire loop on the connecting body 41 .

[0053] The arrangement of the above-mentioned breaking component 44 can loosen the already fixed fixing component 42 and release the fixation of the wire loop piece.

[0054] Specifically, the connecting body 41 includes an inlet port 411, a locking column 412, an air hole 413, a vertical plate 414, a movable groove 415, a support column 416, a movable rod 417, and a through hole groove 418. The connecting body 41 is provided with an inlet port 411, and a locking column 412 is fixedly installed on the connecting body 41. The locking column 412 is a hollow structure and passes through the connecting body 41 and is connected to the inlet port 411. Air holes 413 are provided on both sides of the connecting body 41. The top of the connecting body 41 is symmetrically fixedly connected with a vertical plate 414, and a movable groove 415 is provided in the vertical plate 414. A support column 416 is provided directly behind the vertical plate 414. Two support columns 416 are provided and fixedly connected to the connecting body 41, and a movable rod 417 is fixedly connected between the two support columns 416. A through hole groove 418 is provided on the side of the connecting body 41 away from the inlet port 411.

[0055] The arrangement of the engaging column 412 can movably engage and fix the fixing assembly 42 .

[0056] The provision of the ventilation holes 413 can allow the heat between the plurality of connection terminal groups 4 to be mutually dissipated.

[0057] The arrangement of the movable groove 415 can drive the fixing assembly 42 to move up and down.

[0058] Specifically, the prying assembly 44 includes a handle 441, a rotating tube 442, and an L-shaped plate 443. The handle 441 is fixedly connected to the rotating tube 442, the rotating tube 442 is movably connected to the movable rod 417, and the bottom of the rotating tube 442 is fixedly connected to the L-shaped plate 443, and two L-shaped plates 443 are symmetrically arranged.

[0059] The arrangement of the L-shaped plate 443 can utilize the rotating tube 442 to rotate on the movable rod 417 to tilt the fixing assembly 42 so that it loses the fixation on the wire loop.

[0060] Specifically, the moving assembly 43 is composed of a fixed column 431 and a sliding block 432 . The sliding blocks 432 are fixedly mounted on both ends of the fixed column 431 , and the sliding blocks 432 are movably connected to the movable groove 415 .

[0061] Specifically, the fixing component 42 includes a pressing plate 421, an arc groove 422, a cylindrical through hole 423, and an extrusion column 424. The pressing plate 421 is provided with an arc groove 422, and a cylindrical through hole 423 is provided at one end of the pressing plate 421 away from the arc groove 422. The cylindrical through hole 423 is fixedly connected to the fixing column 431, and the bottom of the pressing plate 421 is fixedly connected to the extrusion column 424.

[0062] The arrangement of the arc groove 422 can better fit the finger force application area of ​​the human body.

[0063] The arrangement of the extrusion column 424 can extrude and fix the wire loop.

[0064] Specifically, the extrusion column 424 is provided with slots 51 at equal intervals, and chamfers 52 are provided at both upper and lower ends of the slots 51 .

[0065] The arrangement of the chamfer 52 can make the cooperation between the extrusion column 424 and the engagement column 412 smoother through the trapezoidal chamfer.

[0066] Working principle: When the smart electricity safety monitoring system is in use, it is necessary to connect the smart electricity detector module A to the distribution box in the monitoring system through a wire circuit, and insert the metal ring on the wire into the incoming port 411 in the connecting terminal group 4 provided on the detector body 1, and then move the fixing component 42. Since the fixing component 42 is fixedly connected to the fixing column 431 on the moving component 43, the fixing column 431 will be driven to move on the movable groove 415 provided inside the vertical plate 414 with the help of the sliding blocks 432 on both sides to lift the fixing component 42, and then place the palm on the arc groove 422 on the pressing plate 421, press the pressing plate 421 so that the extrusion column 424 at the bottom passes through the locking column 412 to squeeze and fix the wire ring, and the locking column 412 is densely distributed with a card block 71 in a ring shape, and the card block 71 can be movably engaged with the card groove 51 on the extrusion column 424 to fix the extrusion column 424, so that the extrusion column 424 can press and fix the wire ring.

[0067] Embodiment 2

[0068] See also Figure 1-12 , further implemented on the basis of Example 1: wherein a card block 71 is provided in the engaging column 412 in Example 1, and the card block 71 is movably engaged with the engaging slot 51.

[0069] Specifically, the heat dissipation structure 3 is composed of a shell 31 , a dustproof net 32 ​​and heat dissipation fins 33 . The top of the shell 31 is fixedly connected with the dustproof net 32 ​​, and the heat dissipation fins 33 are fixedly installed inside the shell 31 .

[0070] The provision of the dustproof net 32 ​​can prevent dust from directly entering the heat dissipation fins 33 .

[0071] The heat dissipation fins 33 can dissipate the heat inside the connection terminal group 4 through the air holes 413 .

[0072] Specifically, the alarm structure 6 is composed of a back plate 61, a temperature sensor 62 and an alarm 63. The temperature sensors 62 are densely distributed at equal distances on the back plate 61. The temperature sensors 62 are movably matched with the through hole grooves 418. The alarm 63 is fixedly installed on the top of the back plate 61, and the alarm 63 is connected to the temperature sensor 62 through an internal circuit.

[0073] Working principle: When the wire needs to be replaced, the handle 441 on the bend assembly 44 is pressed downward. Since the handle 441 is connected to the L-shaped plate 443 through the rotating tube 442, and the L-shaped plate 443 is located at the bottom of the pressing plate 421, when the handle 441 is pressed downward, the rotating tube 442 rotates on the movable rod 417, and the pressing plate 421 can be tilted up through the L-shaped plate 443, so that the squeezing column 424 loses the fixation of the wire metal ring sheet, and then the wire can be pulled out from the inlet port 411 for replacement. Air holes 413 are provided on both sides of the connecting terminal group 4. The heat dissipated from the connecting terminal group 4 can be dissipated by the heat dissipation fins 33 on the heat dissipation structure 3 through the air holes 413, so that the connecting terminal group 4 will not be damaged due to excessive heat during long-term use. At the same time, a through hole groove 418 is opened on one side of the connecting body 41, and a temperature sensor 62 is movably connected to the through hole groove 418, which can detect the temperature of each connecting terminal group 4. When the temperature is too high, an alarm will be issued through the alarm 63 to remind the staff.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart electricity safety monitoring system based on the Internet of Things, the structure of which includes a smart electricity detector module (A), the smart electricity detector module (A) is installed in a distribution box, and various indicators of electricity consumption are monitored in real time through the smart electricity detector module (A). The smart electricity detector module (A) is connected to a smart electricity safety management service platform module (C) through a wireless network, and the smart electricity detector module (A) uploads the monitored data to the smart electricity safety management service platform module (C). The smart electricity safety management service platform module (C) reminds the user of the safety status of the electricity system through a mobile terminal APP (B), characterized in that: The smart electricity detector module (A) comprises a detector body (1), the detector body (1) is provided with a connection terminal group (4), the connection terminal group (4) comprises a connector (41), a movable component (43) is movably connected to the connector (41), a fixed component (42) is fixed to the movable component (43), and a movable component (44) is movably mounted on the connector (41); A display screen (2) is mounted on the detector body (1); a button (5) is provided on one side of the display screen (2); the button (5) is movably connected to the detector body (1); a heat dissipation structure (3) is fixedly connected to the detector body (1); one side of the heat dissipation structure (3) is fixedly connected to a connection terminal group (4); and an alarm structure (6) is fixedly connected to a side of the connection terminal group (4) away from the display screen (2); The connecting body (41) is provided with an inlet port (411), and a snap-fit ​​column (412) is fixedly installed on the connecting body (41), and the snap-fit ​​column (412) is a hollow structure and penetrates the connecting body (41) and is connected to the inlet port (411), and air holes (413) are provided on both sides of the connecting body (41), and a vertical plate (414) is symmetrically fixedly connected to the top of the connecting body (41), and a movable groove (415) is provided in the vertical plate (414), and a support column (416) is provided directly behind the vertical plate (414), and two support columns (416) are provided and fixedly connected to the connecting body (41), and a movable rod (417) is fixedly connected between the two support columns (416), and a through hole groove (418) is provided on the side of the connecting body (41) away from the inlet port (411); The bending assembly (44) comprises a handle (441) and a rotating tube (442) connected to the handle (441), the rotating tube (442) is movably connected to the movable rod (417), and an L-shaped plate (443) is fixed to the bottom of the rotating tube (442); The moving assembly (43) is composed of a fixed column (431) and a sliding block (432), and the sliding blocks (432) movably connected to the movable groove (415) are fixed at both ends of the fixed column (431); The fixing assembly (42) comprises a pressing plate (421), the pressing plate (421) is provided with an arc groove (422), the pressing plate (421) is further provided with a cylindrical through hole (423) connected to a fixing column (431), and an extrusion column (424) is fixed at the bottom of the pressing plate (421); The extrusion column (424) is provided with slots (51) at equal intervals, and both upper and lower ends of the slots (51) are provided with chamfers (52); The engaging column (412) is provided with an engaging block (71) engaging with the engaging slot (51); The heat dissipation structure (3) comprises a shell (31), a dustproof net (32) is fixed on the top of the shell (31), and a heat dissipation fin (33) is fixed inside the shell (31); The alarm structure (6) is composed of a back plate (61), a temperature sensor (62) and an alarm (63); the temperature sensors (62) are densely distributed at equal distances on the back plate (61); the temperature sensors (62) are movably matched with the through hole grooves (418); the alarm (63) is fixedly installed on the top of the back plate (61); and the alarm (63) is connected to the temperature sensor (62) through an internal circuit.

Citation Information

Patent Citations

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  • Intelligent power utilization safety supervision system based on Internet of Things

    CN111007433A

  • Push type wiring terminal

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  • Button type quick wiring terminal

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  • Electric appliance connector with locking structure

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