A portable electric energy meter with malicious load identification function

By adopting a suction and power-off structure in the portable power meter, the problem of circuit disconnection delay or incomplete disconnection in the prior art is solved, and the timely removal of circuit load and safe power off are achieved, and fire and The circuit is damaged.

CN118518916BActive Publication Date: 2024-12-13HUAIAN OF JIANGSU ELECTRIC POWER CO POWER SUPPLY
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Patent Information

Application Number
CN202410966454.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-18
Publication Date
2024-12-13
Estimated Expiration
2044-07-18

AI Technical Summary

Technical Problem

The existing malicious load identifier meter has a delay or is not completely disconnected when the circuit is disconnected, resulting in the circuit load not being removed in time, which may cause fire or poor circuit contact, affecting normal operation.

Method used

A portable electric energy meter is designed, adopting a suction and power-off structure. Through the cooperation of the iron core, coil winding and deformation block, the circuit is actively powered off when the load is large, and the separation of the spring clip and the conductive block is carried out. , realize the current is completely disconnected and avoid circuit damage.

Benefits of technology

It effectively avoids the risk of poor circuit contact and fire, ensures the timely disconnection of the circuit load, ensures that the circuit can work normally when the load is large, and avoids circuit damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a portable electric energy meter with a malicious load identification function, relates to the technical field of malicious load identifiers, comprises a malicious load identifier electric energy meter, a display screen, an insulating block, a connecting bolt, two groups of wire posts, two groups of spring clips and a conductive block, wherein the display screen is arranged on the surface of the malicious load identifier electric energy meter; the invention ensures that the circuit is normally connected by fitting the spring clips and the conductive block without being affected by a barrier sheet, and when the main circuit load is relatively large and the circuit is disconnected, the iron core and the iron block are separated from each other, so that the telescopic spring 2 can separate the spring clips and the conductive block of the circuit, and ensure that the current of the main circuit is completely disconnected when the main circuit is powered off; it can ensure that the iron core and the iron block are attracted to each other, the deformation block is deformed when the deformation block load is high, and the iron core and the iron block are separated from each other, so that the raised barrier sheet separates the spring clips and the conductive block, and damage to the circuit caused by the relatively large circuit load can be avoided.
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Description

Technical Field

[0001] The present invention relates to the technical field of malicious load identifiers, and in particular to a portable electric energy meter with a malicious load identification function. Background Art

[0002] The malicious load identifier limits the instantaneous step power. If the step power is greater than the pre-set value, the system will automatically cut off the load circuit. After a period of time, the system will automatically try to restore power supply. After identification, it is determined that there is no high-power resistive electric heating load connected to the circuit, and the power supply will continue normally. The malicious load identifier refers to the device that identifies and controls the power circuit and is connected to the equipment that is prone to fire.

[0003] There are certain drawbacks in the prior art. A malicious load identifier meter can connect the neutral wire and the live wire of the circuit to the meter. When the circuit load is relatively large or there is a malicious load, it can be identified by the malicious load identifier, so that the circuit can be turned on and off. However, sometimes there is a long delay when the circuit is turned on and off, or the circuit is not completely disconnected, resulting in a large load on the circuit. The electrical circuit cannot be disconnected in time, and even poor contact of the circuit is caused. After the circuit load is restored, the circuit needs to be connected again. If the large load in the circuit still exists, it will affect the operation of the circuit. It is necessary to ensure that the circuit can work normally after the load is removed, or to disconnect the circuit multiple times to prevent the high-power electrical appliance from continuing to work. Summary of the invention

[0004] The purpose of the present invention is to provide a portable electric energy meter with a malicious load identification function to solve the problems raised in the above background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A portable electric energy meter with a malicious load identification function comprises a malicious load identifier electric meter, a display screen, an insulating block, a connecting bolt, two groups of wire posts, two groups of spring clips and a conductive block, wherein the display screen is arranged on the surface of the malicious load identifier electric meter, the insulating block is arranged at the edge of the malicious load identifier electric meter, two wire posts in the same group are fixed inside the malicious load identifier electric meter, two spring clips in the same group are respectively installed on opposite surfaces of the two wire posts, the conductive block is located between the two spring clips, the end face of the insulating block is threadedly connected to the connecting bolt, the end of the connecting bolt is in contact with the conductive block, an attraction structure is arranged between the two groups of the wire posts, the attraction structure comprises a fixing plate erected between the two groups of the wire posts, both ends of the fixing plate are provided with an intermediate groove, and the two groups The wire post runs through the middle grooves on both sides, and two barrier plates are integrally manufactured on both sides of the fixed plate, and the two barrier plates are located between the two wire posts. The fixed plate and the barrier plates are made of insulating materials. An iron core is arranged inside the malicious load identifier meter and below the fixed plate, and a plurality of coil windings are wound around the outside of the iron core. The two ends of the coil winding are respectively connected to the first wire and the second wire, and the end of the first wire and the end of the second wire are respectively connected to the conductive block and the wire post of the same group. An iron block is installed in the middle of the bottom end of the fixed plate, and the position of the iron block corresponds to the position of the iron core. The same group of wire posts, the first wire, the coil winding, the second wire and the conductive block are electrically connected, and a power-off structure for controlling the on and off of the first wire is arranged between the first wire and the coil winding.

[0007] As a preferred technical solution of the present invention, the conductive block, spring clip and wire column are electrically connected, the energized iron core is attracted to the iron block, and the barrier sheets on both sides of the fixed plate are separated from the spring clips.

[0008] As a preferred technical solution of the present invention, the power-off structure includes connecting block 1 and connecting block 2, connecting block 1 and connecting block 2 are respectively arranged at the first wire and the end of the coil winding, and the opposite surfaces of connecting block 1 and connecting block 2 are provided with placement grooves, the inner walls of the two placement grooves are provided with insulating sheets, and a deformation block is arranged between the placement groove of connecting block 1 and the placement groove of connecting block 2, the material of the deformation block is a recording metal alloy material, and a telescopic spring 1 and a support plate are arranged under the deformation block, and the two ends of the telescopic spring 1 are respectively in contact with the support plate and the deformation block.

[0009] As a preferred technical solution of the present invention, the shape of the deformation block bends as the temperature rises, and the two ends of the deformation block are slidably connected to the inside of the two placement grooves respectively.

[0010] As a preferred technical solution of the present invention, two ends of the horizontal deformation block are electrically connected to the connecting block 1 and the connecting block 2 respectively.

[0011] As a preferred technical solution of the present invention, the two ends of the bent deformation block are in contact with the insulating sheet of connecting block one and the insulating sheet of connecting block two respectively, and two groups of guide columns and telescopic spring two are arranged under the fixed plate, the telescopic spring two is sleeved on the outside of the guide column, the guide column is slidably connected to the connecting block one, and the barrier plate is located between the spring clip and the conductive block.

[0012] As a preferred technical solution of the present invention, a safety reset structure is provided on both sides of the fixed plate and located at the conductive block, and the safety reset structure includes a connecting hole, which is opened on the top surface of the insulating block, and a connecting pin is opened inside the connecting hole, and the bottom end of the connecting pin is connected to a pushing block, and the pushing block is sleeved on the outside of the conductive block, and reserved grooves are opened on both sides of the pushing block, and the position of the reserved grooves corresponds to the position of the spring clip, and the bottom end of the pushing block corresponds to the position of the barrier plate.

[0013] As a preferred technical solution of the present invention, the distance that the push block descends is adapted to the distance that the barrier sheet rises, and the spring clip penetrates the interior of the reserved groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] A pull-in structure is provided. When the coil winding of the control circuit is energized, the iron core and the iron block are attracted, and the spring clip and the conductive block are in contact with each other without being affected by the barrier sheet, thereby ensuring that the circuit is normally connected. When the main circuit load is relatively large and the circuit is disconnected, the iron core and the iron block are separated from each other, so that the second telescopic spring can separate the spring clip and the conductive block of the circuit, ensuring that the current of the main circuit is completely disconnected when the main circuit is powered off, avoiding poor circuit contact;

[0016] A power-off structure is provided. When the first conductor, the coil winding, and the deformation block are interconnected, the iron core and the iron block can be attracted to each other. When the deformation block is loaded with a high load, the deformation block is deformed, and the iron core and the iron block are separated from each other. Thus, the raised barrier sheet separates the spring clip and the conductive block, thereby preventing the circuit from being damaged due to a large circuit load.

[0017] The attraction structure and the power-off structure cooperate with each other. When the main circuit load is large and needs to be disconnected, the raised barrier can ensure that the spring clip and the conductive block are completely separated. When the control circuit load is large, the barrier can be actively raised to separate the spring clip and the conductive block, and the control circuit can also switch the main circuit on and off. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0019] Figure 1 It is the main structure diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the spring clip and the conductive block of the present invention;

[0021] Figure 3 It is a schematic diagram of the suction structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the first wire, the second wire and the coil winding of the present invention;

[0023] Figure 5 It is a schematic diagram of the power-off structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the bending state of the deformation block of the present invention;

[0025] Figure 7 It is a second schematic diagram of the guide column and telescopic spring of the present invention;

[0026] Figure 8 It is a schematic diagram of the safety verification structure of the present invention;

[0027] Fig. 9 It is a schematic diagram of the push block of the present invention in the descending state.

[0028] In the figure: 1. Malicious load identifier electric meter; 2. Display screen; 3. Insulating block; 4. Connecting bolt; 5. Conductor column; 6. Spring clip; 710. Suction structure; 711. Fixing plate; 712. Barrier plate; 713. Middle groove; 714. First conductor; 715. Second conductor; 716. Coil winding; 717. Iron core; 718. Iron block; 720. Power-off structure; 721. Connecting block one; 722. Connecting block two; 723. Deformation block; 724. Support plate; 725. Telescopic spring one; 726. Insulating sheet; 727. Placement groove; 728. Guide column; 729. Telescopic spring two; 8. Safety reset structure; 81. Connecting pin; 82. Connecting hole; 83. Pushing block; 84. Reserved groove; 9. Conductive block. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0030] See also Figure 1-Figure 3As shown, a portable electric energy meter with a malicious load identification function includes a malicious load identifier electric energy meter 1, a display screen 2, an insulating block 3, a connecting bolt 4, two groups of wire posts 5, two groups of spring clips 6 and a conductive block 9, the display screen 2 is arranged on the surface of the malicious load identifier electric energy meter 1, and the malicious load identifier electric energy meter 1 can display power data, such as instantaneous power, current and other data, through the display screen 2 when working, the insulating block 3 is arranged at the edge of the malicious load identifier electric energy meter 1, and the two wire posts 5 in the same group are fixed to the inside of the malicious load identifier electric energy meter 1 where the malicious load identifier electric energy meter 1 is installed, and the wire posts 5 are connected to the malicious load identification module in the malicious load identifier electric energy meter 1, so that the circuit can be disconnected when the instantaneous power is relatively large or when the load is on, and the two spring clips 6 in the same group are respectively arranged Installed on the opposite sides of the two wire posts 5, the conductive block 9 is located between the two spring clips 6, the end face of the insulating block 3 is threadedly connected to the connecting bolt 4, and the end of the connecting bolt 4 is in contact with the conductive block 9. When the conductive block 9 contacts the spring clip 6 between the wire posts 5, the positive and negative poles of the power supply are connected to the two insulating blocks 3 of the malicious load identifier meter 1, so that the malicious load identifier meter 1 can detect whether the circuit is loaded. When loaded, the circuit will heat up, so that the malicious load identification module inside the malicious load identifier meter 1 will disconnect the circuit. A suction structure 710 is provided between the two groups of wire posts 5. The suction structure 710 includes a fixing plate 711 erected between the two groups of wire posts 5, and both ends of the fixing plate 711 are provided with middle grooves 713. Two groups of wire posts 5 pass through the middle grooves 713 on both sides. When the fixing plate 711 is raised or lowered, the fixing plate 711 moves relative to the wire posts 5. Two blocking pieces 712 are provided on both sides of the fixing plate 711, and the two blocking pieces 712 are located between the two wire posts 5. The materials of the fixing plate 711 and the blocking piece 712 are both insulating materials. When the fixing plate 711 is raised, the blocking piece 712 can isolate the wire posts 5 and the conductive block 9, thereby disconnecting the circuit of the conductive block 9 and the wire posts 5. When the fixing plate 711 is lowered, the blocking piece 712 can contact the wire posts 5 and the conductive block 9. An iron core 717 is provided inside the malicious load identifier meter 1 and below the fixing plate 711. The outside of the iron core 717 is wrapped with some The dry coil winding 716, the two ends of the coil winding 716 are respectively connected to the first wire 714 and the second wire 715, the end of the first wire 714 and the end of the second wire 715 are respectively connected to the conductive block 9 and the wire column 5 of the same group, an iron block 718 is installed in the middle of the bottom end of the fixing plate 711, the position of the iron block 718 corresponds to the position of the iron core 717, the same group of wire column 5, the first wire 714, the coil winding 716, the second wire 715 and the conductive block 9 are electrically connected. Under normal circumstances, after the conductive block 9 is connected to the wire column 5, the first wire 714, the coil winding 716 and the second wire 715 connected to the live wire are connected to the tube. At this time, the coil winding 716 is wound around the iron core 717, so that the iron core 717 generates a magnetic field.Thus, under the action of the magnetic field, the iron block 718 under the fixed plate 711 is attracted to the iron core 717, ensuring that the wire column 5 and the conductive block 9 are connected. When the conductive block 9 is separated from the wire column 5, the circuit between the first wire 714 and the second wire 715 is disconnected, and the magnetic field generated by the iron core 717 disappears. The iron block 718 and the iron core 717 are separated. A power-off structure 720 for controlling the on and off of the first wire 714 is provided between the first wire 714 and the coil winding 716. When the first wire 714 and the second wire 715 are subjected to a large load, the power-off structure 720 works, and the first wire 714 and the second wire 715 also generate high temperatures, thereby causing the power-off structure 720 to work, so that the power-off structure 720 controls the position of the fixed plate 711 to rise and fall.

[0031] See also Figure 3 and Figure 4 As shown, the conductive block 9, the spring clip 6 and the conductor post 5 are electrically connected, the energized iron core 717 is attracted to the iron block 718, and the barrier pieces 712 on both sides of the fixed plate 711 are separated from the spring clip 6. When the conductive block 9, the spring clip 6 and the conductor post 5 turn on the circuit, the first wire 714, the coil winding 716 and the second wire 715 are interconnected, so that the iron core 717 is affected by the coil winding 716 so that the iron core 717 generates a magnetic field, the iron core 717 is attracted to the iron block 718 of the fixed plate 711, and the barrier pieces 712 on both sides of the fixed plate 711 are separated from the spring clip 6.

[0032] It should be noted that the live wire and the neutral wire of the circuit are connected to the malicious load identifier meter 1. At this time, the display screen 2 can display the load condition passing through the malicious load identifier meter 1, so that the display screen 2 displays instantaneous power, voltage, current and other data, and the conductive block 9 contacts the spring clip 6 of the wire column 5, thereby connecting the wire column 5 fixed inside the malicious load identifier meter 1 with the malicious load identifier, so that when a load occurs in the circuit, the malicious load identifier works to disconnect the circuit. At the same time, since the first wire 714, the coil winding 716 and the second wire 715 are connected, the coil winding 716 is wound inside the iron core 717, so that the iron core 717 generates a magnetic field to attract the iron core 717 and the iron block 718, and the barrier sheets 712 on both sides of the fixed plate 711 are separated from the spring clip 6 to ensure that the current of the main circuit is completely disconnected when the main circuit is powered off.

[0033] See also Figure 3 and Figure 5As shown, the power-off structure 720 includes a connection block 1 721 and a connection block 2 722, and the connection block 1 721 and the connection block 2 722 are respectively arranged at the ends of the first wire 714 and the coil winding 716, the connection block 1 721 is connected to the first wire 714, the connection block 2 722 is connected to the coil winding 716, and the opposite surfaces of the connection block 1 721 and the connection block 2 722 are provided with a placement groove 727, the inner walls of the two placement grooves 727 are provided with an insulating sheet 726, and a placement groove 727 of the connection block 1 721 and the placement groove 727 of the connection block 2 722 are provided between them. The deformation block 723 is made of a recording metal alloy material. The first wire 714, the connecting block 1 721, the deformation block 723, the connecting block 2 722, the coil winding 716 and the second wire 715 are connected. The two ends of the deformation block 723 are conductive with the connecting block 1 721 and the connecting block 2 722. A telescopic spring 1 725 and a support plate 724 are provided below the deformation block 723. The two ends of the telescopic spring 1 725 are in contact with the support plate 724 and the deformation block 723 respectively, so that the deformation block 723 can be in contact with or separated from the insulating sheet 726.

[0034] See also Figure 5 and Figure 6 As shown, the shape of the deformation block 723 bends as the temperature rises, and the two ends of the deformation block 723 are respectively slidably connected to the inside of the two placement grooves 727. When the circuit load is relatively large, the circuit temperature rises, thereby softening the deformation block 723. When the load is relatively small or disconnected, the circuit temperature drops, thereby restoring the original hardness of the deformation block 723, thereby adjusting the conductive block 9 according to the circuit conditions.

[0035] See also Figure 5 As shown, the two ends of the horizontal deformation block 723 are electrically connected to the connecting block 1 721 and the connecting block 2 722 respectively. When the deformation block 723 is in a flat state, the two ends of the deformation block 723 are just in contact with the inside of the connecting block 1 721 and the connecting block 2 722, so that the deformation block 723 can connect the first wire 714 and the coil winding 716, so that the iron core 717 can attract the iron block 718.

[0036] See also Figure 6 and Figure 7As shown, the two ends of the bent deformation block 723 are in contact with the insulating sheet 726 of the connecting block 1 721 and the insulating sheet 726 of the connecting block 2 722 respectively. When the resistance between the first wire 714 and the second wire 715 is relatively large, the deformation block 723 becomes soft and bends. Two sets of guide posts 728 and telescopic springs 2 729 are arranged below the fixing plate 711. The telescopic springs 2 729 are sleeved on the outside of the guide posts 728. The guide posts 728 are slidably connected to the connecting block 1 721. The barrier sheet 712 is located between the spring clip 6 and the conductive block 9. Under the action of spring 1 725, the softened deformation block 723 is pushed, so that the bent deformation block 723 slides along the inside of the placement groove 727, so that the two ends of the deformation block 723 contact the insulating sheets 726 of the two connecting blocks. At this time, the first wire 714 and the coil winding 716 are disconnected, and the magnetic field of the iron core 717 of the coil winding 716 disappears. Therefore, under the action of the guide column 728 and the telescopic spring 2 729, the position of the fixed plate 711 is adjusted, and the fixed plate 711 is lifted along the guide column 728, so that the blocking sheet 712 is inserted into the wire column 5 and the conductive block 9.

[0037] It should be noted that the first wire 714, the coil winding 716 and the second wire 715 are connected, so that the coil winding 716 is wound around the iron core 717 so that the iron core 717 generates a magnetic field, and the iron block 718 is in contact with the iron core 717. When the wire column 5 and the conductive block 9 are not in contact, the circuit can be disconnected. At this time, when the circuit has a large load, the malicious load identifier meter 1 can work, thereby avoiding danger or fire due to malicious load. During this period, when the load of the first wire 714, the coil winding 716 and the second wire 715 is relatively large or the current is relatively large, the deformation block 723 located between the first wire 714 and the coil winding 716 will also generate relatively large heat. The deformation block 723 will be deformed and bent due to the heat. Under the action of the telescopic spring 725, the softened deformation block 723 will be pushed to bend. At this time, the two ends of the deformation block 723 are connected to the connecting block The contact between the first and second connecting blocks 721 and 722 becomes the contact between the insulating sheet 726, so that the circuit between the first conductor 714 and the coil winding 716 is disconnected, and the magnetic field of the iron core 717 inside the coil winding 716 disappears. At this time, the telescopic spring 2 729 of the guide column 728 is extended to push the fixed plate 711, so that the iron core 717 will not contact the iron block 718, and the barrier sheet 712 lifted by the fixed plate 711 will also separate the conductive block 9 from the spring clip 6, so as to prevent the circuit from continuing to be connected to the circuit. When the temperature of the deformation block 723 drops, the telescopic spring 1 725 can be compressed, so that the two ends of the deformation block 723 are in contact with the connecting blocks 1 721 and 2 722 again, so that the circuit of the first conductor 714, the coil winding 716 and the second conductor 715 is connected again, and the iron core 717 and the iron block 718 are attracted together again.

[0038] See also Figure 2 , Figure 8 and Fig. 9 As shown, a safety reset structure 8 is provided on both sides of the fixing plate 711 and at the conductive block 9. The safety reset structure 8 includes a connecting hole 82. The connecting hole 82 is provided on the top surface of the insulating block 3. A connecting pin 81 is provided inside the connecting hole 82. The connecting pin 81 is insulated. A push block 83 is connected to the bottom end of the connecting pin 81. The push block 83 is sleeved on the outside of the conductive block 9. The push block 83 slides along the conductive block 9, so that the barrier sheet 712 inserted between the wire column 5 and the conductive block 9 is pushed away, thereby So that the blocking piece 712 can be separated from the conductive block 9 and the wire column 5, reserved grooves 84 are opened on both sides of the pushing block 83, the position of the reserved grooves 84 corresponds to the position of the spring clip 6, and the reserved grooves 84 of the pushing block 83 do not affect the connection between the spring clip 6 and the conductive block 9. The bottom end of the pushing block 83 corresponds to the position of the blocking piece 712. The descending pushing block 83 can move the blocking piece 712 to restore the normal activity of the circuit, and the suction structure 710 and the power-off structure 720 also work normally.

[0039] See also Fig. 9 As shown, the distance that the push block 83 descends is adapted to the distance that the blocking piece 712 rises, and the spring clip 6 passes through the interior of the reserved groove 84, so that the connecting pin 81 can be lifted and pressed so that the connecting pin 81 moves along the interior of the connecting hole 82. The pushing block 83 descends to push the blocking piece 712 so that the blocking piece 712 is separated from the spring clip 6.

[0040] When the present invention is used, the live wire and the neutral wire of the circuit are connected to the insulating block 3 of the malicious load identifier ammeter 1, and the wires are connected by connecting bolts 4, so that the live wire connects the main circuit conductive block 9, the spring clip 6, and the wire post 5, so that the wire post 5 is connected to the malicious load identifier inside the malicious load identifier ammeter 1, so that the load condition can be limited according to the power condition of the malicious load identifier. When the load is relatively large or malicious, the malicious load identifier ammeter 1 can work to cut off the power of the circuit, and when the load is relatively small, the circuit can work normally;

[0041] During this period, when the conductive block 9, spring clip 6, and conductor column 5 of the main circuit are connected, the first conductor 714, coil winding 716, and second conductor 715 can be connected, so that the iron core 717 can be attracted to the iron block 718 and overcome the resistance of the second telescopic spring 729, so that the fixed plate 711 moves in the vertical direction. After the fixed plate 711 descends, the blocking piece 712 is separated from the spring clip 6 and the conductive block 9. When the conductive block 9, spring clip 6, and conductor column 5 of the main circuit are separated, the circuit between the first conductor 714 and the second conductor 715 is also disconnected, and the magnetic field of the iron core 717 inside the coil winding 716 disappears, so that the iron core 717 is separated from the iron block 718, so that the fixed plate 711 is lifted under the action of the second telescopic spring 729, so that the blocking piece 712 separates the spring clip 6 and the conductive block 9, ensuring the separation of the main circuit live wire;

[0042] When the main circuit has a large load, the spring clip 6 and the conductive block 9 are not separated, and the circuit can be controlled by the power-off structure 720. Specifically, when the current of the main circuit is too large, a relatively large current will also flow through the first wire 714 and the second wire 715. At this time, the current of the deformation block 723 between the coil winding 716 and the first wire 714 is relatively large, and the deformation block 723 will also generate a large amount of heat, so that the deformation block 723 becomes soft and bent. The softened and bent deformation block 723 will cause the two ends of the deformation block 723 to move under the action of the telescopic spring 725, and the two ends of the deformation block 723 will contact the insulating sheet 726, so that the circuit of the first wire 714 and the coil winding 716 is disconnected. At this time, the magnetic field of the iron core 717 disappears, which will separate the iron core 717 and the iron block 718, and the barrier sheets 712 at both ends of the fixed plate 711 rise, and the spring clip 6 is separated from the conductive block 9, so that the The main circuit spring clip 6 and the conductive block 9 and the first wire 714 and the second wire 715 of the control circuit are disconnected, and the circuit is ensured to be disconnected when the load is relatively high to prevent the circuit high-load electrical appliances from being operated; the long-term power outage causes the temperature of the deformation block 723 to drop, so that the deformation block 723 recovers from the bent state to the flat state, and the two ends of the deformation block 723 are in contact with the connecting block 1 721 and the connecting block 2 722 again, and the deformation block 723 can connect the first wire 714 and the coil winding 716, so that the first wire 714, the coil winding 716 and the second wire 715 of the auxiliary circuit are connected again, and the iron core 717 and the iron block 718 are attracted to each other, so that the blocking piece 712 is removed from the spring clip 6 and the conductive block 9, so that the main circuit conductive block 9, the spring clip 6, and the wire column 5 can be connected normally, so that the malicious load identifier of the circuit and the malicious load identifier inside the meter 1 can be used normally.

[0043] If the fixing plate 711 cannot descend during the period, the connecting pin 81 will descend along the inside of the connecting hole 82, so that the pushing block 83 pushes the blocking piece 712 to descend, and the reserved grooves 84 on both sides of the pushing block 83 also descend. The spring clip 6 is located inside the reserved groove 84, and the spring clip 6 inside the reserved groove 84 will not be affected by the blocking piece 712. The spring clip 6 and the conductive block 9 can conduct electricity. When the blocking piece 712 rises, the pushing block 83 can also be lifted, so that the pushing block 83 rises along the conductive block 9, and the connecting pin 81 rises along the inside of the connecting hole 82. The on and off of the spring clip 6 and the conductive block 9 can be manually controlled, which is safer.

[0044] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A portable electric energy meter with a malicious load identification function, comprising a malicious load identifier electric energy meter (1), a display screen (2), an insulating block (3), a connecting bolt (4), two groups of wire posts (5), two groups of spring clips (6) and a conductive block (9), wherein the display screen (2) is arranged on the surface of the malicious load identifier electric energy meter (1), the insulating block (3) is arranged at the edge of the malicious load identifier electric energy meter (1), two wire posts (5) in the same group are fixed inside the malicious load identifier electric energy meter (1), two spring clips (6) in the same group are respectively installed on opposite surfaces of the two wire posts (5), the conductive block (9) is located between the two spring clips (6), the end surface of the insulating block (3) is threadedly connected to the connecting bolt (4), and the end of the connecting bolt (4) is in contact with the conductive block (9); characterized in that An attraction structure (710) is provided between the two groups of conductor posts (5), the attraction structure (710) comprising a fixing plate (711) arranged between the two groups of conductor posts (5), both ends of the fixing plate (711) are provided with middle grooves (713), the two groups of conductor posts (5) penetrate the middle grooves (713) on both sides, two barrier sheets (712) manufactured in one piece are provided on both sides of the fixing plate (711), the two barrier sheets (712) are located between the two conductor posts (5), the fixing plate (711) and the barrier sheets (712) are both made of insulating materials, an iron core (717) is provided inside the malicious load identifier electric meter (1) and below the fixing plate (711), and a plurality of coils of wire are wound around the outside of the iron core (717) A coil winding (716), two ends of the coil winding (716) are respectively connected to a first wire (714) and a second wire (715), an end of the first wire (714) and an end of the second wire (715) are respectively connected to a conductive block (9) and a wire column (5) of the same group, an iron block (718) is installed in the middle of the bottom end of the fixing plate (711), the position of the iron block (718) corresponds to the position of the iron core (717), the wire column (5) of the same group, the first wire (714), the coil winding (716), the second wire (715) and the conductive block (9) are electrically connected, and a power-off structure (720) for controlling the on and off of the first wire (714) is provided between the first wire (714) and the coil winding (716); The power-off structure (720) comprises a connection block 1 (721) and a connection block 2 (722), the connection block 1 (721) and the connection block 2 (722) being respectively arranged at the ends of the first conductive wire (714) and the coil winding (716), and a placement groove (727) is provided on the opposite surfaces of the connection block 1 (721) and the connection block 2 (722), the inner walls of the two placement grooves (727) are both provided with an insulating sheet (726), a deformation block (723) is arranged between the placement groove (727) of the connection block 1 (721) and the placement groove (727) of the connection block 2 (722), the deformation block (723) is made of a recording metal alloy material, a telescopic spring 1 (725) and a support plate (724) are arranged below the deformation block (723), and two ends of the telescopic spring 1 (725) are respectively in contact with the support plate (724) and the deformation block (723).

2. A portable electric energy meter with malicious load identification function according to claim 1, characterized in that: The conductive block (9), the spring clip (6) and the conductor post (5) are electrically connected, the energized iron core (717) and the iron block (718) are attracted to each other, and the barrier plates (712) on both sides of the fixed plate (711) are separated from the spring clip (6).

3. A portable electric energy meter with malicious load identification function according to claim 2, characterized in that: The shape of the deformation block (723) bends as the temperature rises, and two ends of the deformation block (723) are respectively slidably connected to the inside of the two placement grooves (727).

4. A portable electric energy meter with malicious load identification function according to claim 3, characterized in that: Two ends of the horizontal deformation block (723) are electrically connected to the first connection block (721) and the second connection block (722) respectively.

5. The portable electric energy meter with malicious load identification function according to claim 3 is characterized in that: The two ends of the bent deformation block (723) are in contact with the insulating sheet (726) of the first connecting block (721) and the insulating sheet (726) of the second connecting block (722), respectively, and two groups of guide columns (728) and a second telescopic spring (729) are arranged below the fixed plate (711), the second telescopic spring (729) is sleeved on the outside of the guide column (728), the guide column (728) is slidably connected to the first connecting block (721), and the barrier sheet (712) is located between the spring clip (6) and the conductive block (9).

6. A portable electric energy meter with malicious load identification function according to claim 5, characterized in that: A safety reset structure (8) is provided on both sides of the fixing plate (711) and at the conductive block (9). The safety reset structure (8) comprises a connection hole (82). The connection hole (82) is provided on the top surface of the insulating block (3). A connection pin (81) is provided inside the connection hole (82). A push block (83) is connected to the bottom end of the connection pin (81). The push block (83) is sleeved on the outside of the conductive block (9). Reserved grooves (84) are provided on both sides of the push block (83). The position of the reserved grooves (84) corresponds to the position of the spring clip (6). The bottom end of the push block (83) corresponds to the position of the barrier sheet (712).

7. A portable electric energy meter with malicious load identification function according to claim 6, characterized in that: The distance that the pushing block (83) descends is adapted to the distance that the blocking sheet (712) rises, and the spring clip (6) penetrates the interior of the reserved groove (84).