Dual-power dual-communication lightning arrester digital meter

Abstract

The invention relates to the technical field of digital meters, and discloses a dual-power dual-communication lightning arrester digital meter, which comprises a meter assembly, the meter assembly comprises a digital meter, the back surface of the digital meter is electrically connected with a main power line, and the bottom of the back surface of the digital meter is fixedly connected with a standby power supply. The magnetoelectric trigger assembly comprises an electromagnetic assembly, a conductive elastic piece is electrically attached to the bottom end of the electromagnetic assembly, the main power line and the standby power supply form a parallel circuit with the digital meter through the electromagnetic assembly and the conductive elastic piece, the suppression assembly comprises an eddy current energy consumption assembly, and a linkage assembly is installed on the side face of the bottom end of the eddy current energy consumption assembly. A potential energy assembly is installed at the bottom end of the linkage assembly, the electromagnetic assembly generates magnetic field force through circulating current and recharging current to be disconnected with the conductive elastic piece, reverse charging of the main power source is prevented, and the situation that a standby battery is overheated or even exploded due to the fact that the standby battery is reversely charged by the main power source is avoided.

Description

Technical Field

[0001] This invention relates to the field of digital metering technology, and more specifically to a digital metering device with dual power supply and dual communication surge arrester. Background Technology

[0002] The dual-power, dual-communication digital surge arrester meter is an intelligent power monitoring device that integrates surge protection, dual power supply, and dual communication interfaces. It is mainly used for real-time monitoring and data acquisition of surge arrester status in power systems. The digital surge arrester meter needs to monitor the surge arrester status in real time. In order to ensure that the digital surge arrester meter can operate normally when the main power system cannot supply power, the backup power supply usually adopts the "on first, off later" approach to ensure that the load is not powered off during the power switching process. However, the mechanical delay during power switching is uncontrollable, and the parallel connection time of the two power supplies is too long, which will generate circulating current and reverse current, causing the backup power supply to be reverse charged by the main power supply, resulting in overheating or even explosion. In addition, overvoltage often occurs during the power switching process, which can damage the circuit or the backup power supply. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a digital meter for a dual-power dual-communication surge arrester to solve the problems existing in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a digital meter for a dual-power dual-communication surge arrester, comprising a meter assembly, wherein the meter assembly includes a digital meter, the back of the digital meter is electrically connected to a main power line, and the bottom of the back of the digital meter is fixedly connected to a backup power source; the magneto-electric triggering assembly includes an electromagnetic assembly, and the bottom end of the electromagnetic assembly is electrically attached to a conductive spring.

[0005] The main power line and the backup power supply form a parallel circuit with the digital meter through electromagnetic components, conductive springs, and the voltage suppression component includes an eddy current energy dissipation component. A linkage component is installed on the side of the bottom end of the eddy current energy dissipation component, and a potential energy component is installed at the bottom end of the linkage component.

[0006] The electromagnetic component uses circulating current and backflow current to generate a magnetic field force to disconnect from the conductive spring and prevent the main power supply from charging in reverse. The potential energy component uses the electromagnetic component to pull away from the conductive spring and unlock it. The eddy current energy dissipation component rotates at high speed under the action of the contraction inertia of the potential energy component to cut the magnetic field lines and generate eddy currents, suppressing instantaneous voltage spikes.

[0007] Furthermore, a magnetoelectric triggering component is fixedly connected to the back of the meter assembly, and a pressure suppressing component is fixedly connected to the inner side of the magnetoelectric triggering component.

[0008] Furthermore, the digital meter has two surge arrester connection posts electrically connected to the rear end of the top, and two mounting strips fixedly connected to the rear end of the bottom, with mounting plates fixedly connected to the back of the two mounting strips, and a backup power supply fixedly connected to the top of the mounting plates.

[0009] Furthermore, the top of the electromagnetic component is electrically connected to the bottom of the main power line, the top of the backup power supply is electrically connected to a conductor rod, the bottom of the electromagnetic component is in contact with a conductive spring, the top of the conductor rod is electrically connected to two conductive springs, the bottom of the main power line is fixedly connected to a vertical plate, both ends of the front of the vertical plate are fixedly connected to side shells, a rectangular columnar space is formed between the two side shells, the electromagnetic component and the conductive springs are located in the rectangular columnar space, and a vent is provided on one side of the two side shells.

[0010] Furthermore, the electromagnetic component includes a circular shell, with an upper conductive plate and a lower conductive plate fixedly connected to the inner sides of the top and bottom ends of the circular shell, respectively. The upper conductive plate is electrically connected to the main power line, and a solenoid coil is electrically connected to the bottom of the upper conductive plate. The bottom end of the solenoid coil is electrically connected to the lower conductive plate, and a conductive strip is electrically connected to one side of the lower conductive plate. One end of the conductive strip is electrically connected to a wire, and a movable plunger is movably sleeved on the inner side of the lower conductive plate.

[0011] Furthermore, a guide block is fixedly connected to the bottom end of the movable plunger, one side of the guide block is electrically connected to a wire, a spring is movably sleeved on the side of the movable plunger, the top end of the spring is fixedly connected to the bottom of the lower conductive plate, the bottom end of the spring is fixedly connected to the top of the guide block, and a conductor tongue plate is electrically connected to the bottom of the guide block.

[0012] Furthermore, the eddy current energy dissipation component is rotatably sleeved on the side of the circular shell, the back of the linkage component is fixedly connected to the inner side of the side shell, and the potential energy component is fixedly connected to one side of the side shell.

[0013] Furthermore, the eddy current energy dissipation component includes a damping disk, the top of which is provided with several heat dissipation vents, the inside of which contains several magnetic blocks, and a rotating ring is fixedly connected to the bottom of the damping disk, with gear teeth provided at the bottom end of the side of the rotating ring.

[0014] Furthermore, the linkage component includes a rotating shaft, a gear one fixedly connected to the top end of the rotating shaft, a gear two fixedly connected to the bottom end of the rotating shaft, a fixing block movably sleeved on the side of the rotating shaft, and the back of the fixing block fixedly connected to the inside of the side shell. The gear one meshes with the rotating ring.

[0015] Furthermore, the potential energy component includes a guide rail block, a movable plate placed inside the guide rail block, a connecting block fixedly connected to the top of the movable plate, an elastic element fixedly connected to the side of the connecting block, one end of the elastic element fixedly connected to the inside of the guide rail block, a pin opening provided at one end of the movable plate, the pin opening size being consistent with the bottom size of the conductor tongue plate, the pin opening movably fitting onto the conductor tongue plate, and a rack fixedly connected to one side of the movable plate, the rack meshing with a gear.

[0016] The technical effects and advantages of this invention are as follows:

[0017] 1. When circulating current and reverse current occur in the backup power circuit, the reverse current flows through the solenoid and generates a magnetic field. The magnetic field force pushes the movable plunger upward, causing the conductor tongue to disengage from the conductive spring, thus breaking the backup power circuit and preventing the reverse current from flowing. When the circulating current and reverse current disappear, no current flows through the solenoid and no magnetic field is generated. Under the action of the spring, the conductor tongue is reinserted into the conductive spring, reconnecting the circuit and preventing the backup battery from being reverse-charged by the main power supply, which could cause overheating or even explosion.

[0018] 2. When circulating current or reverse current occurs, the magnetoelectric triggering component causes the conductor tongue plate to detach from the conductive spring, thereby causing the conductor tongue plate to be pulled away from the moving plate. The moving plate loses its fixation and moves rapidly towards the guide rail block under the action of the elastic element. During the movement of the moving plate, gear two is engaged and driven, which in turn drives gear one to rotate. Under the meshing relationship, the rotating ring also begins to rotate. The rotating ring drives the damping disk to rotate, causing the magnetic block to cut the magnetic field lines and generate eddy currents, converting electrical energy into heat energy for dissipation, suppressing instantaneous voltage spikes, and avoiding damage to the circuit or backup power supply from instantaneous overvoltage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall rear structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the front structure of the meter assembly of the present invention;

[0022] Figure 4 This is a schematic diagram of the rear structure of the meter assembly of the present invention;

[0023] Figure 5 This is a schematic diagram of the magnetoelectric triggering component structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the exploded structure of the magnetoelectric triggering component of the present invention;

[0025] Figure 7 This is a schematic cross-sectional view of the electromagnetic component of the present invention;

[0026] Figure 8 This is a schematic diagram of the pressure-suppressing component and a single side shell structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the eddy current energy dissipation component structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the linkage component structure of the present invention;

[0029] Figure 11 This is a schematic diagram of the potential energy component structure of the present invention.

[0030] The attached figures are labeled as follows: 1. Meter assembly; 101. Digital meter; 102. Surge arrester connection stake; 103. Main power line; 104. Mounting plate; 105. Backup power supply; 2. Magnetoelectric trigger assembly; 201. Electromagnetic assembly; 2011. Circular shell; 2012. Solenoid coil; 2013. Movable plunger; 2014. Spring; 2015. Conductor tongue plate; 202. Conductive spring; 203. Side shell; 3. Suppression assembly; 301. Eddy current energy dissipation assembly; 3011. Damping disc; 3012. Magnetic block; 3013. Rotating ring; 302. Linkage assembly; 3021. Rotating shaft; 3022. Gear one; 3023. Gear two; 303. Potential energy assembly; 3031. Guide rail block; 3032. Moving plate. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The digital meter of the dual-power dual-communication surge arrester involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Reference Figure 1 and Figure 2 The present invention provides a digital meter for a dual-power dual-communication surge arrester, including a meter assembly 1, a magnetoelectric trigger assembly 2 fixedly connected to the back of the meter assembly 1, and a voltage suppression assembly 3 fixedly connected to the inner side of the magnetoelectric trigger assembly 2.

[0033] In this embodiment, it is necessary to further explain that the magnetoelectric trigger component 2 prevents the backup battery from overheating or even exploding due to reverse charging by the main power supply, and the voltage suppression component 3 prevents instantaneous overvoltage from damaging the circuit or backup power supply. The specific structure and working principle of the above components will be explained in detail later.

[0034] Reference Figure 3 and Figure 4 The meter assembly 1 includes a digital meter 101. The rear end of the top of the digital meter 101 is electrically connected to two surge arrester connection posts 102. The back of the digital meter 101 is electrically connected to a main power supply line 103. The rear end of the bottom of the digital meter 101 is fixedly connected to two mounting strips. The back of the two mounting strips is fixedly connected to a mounting plate 104. The top of the mounting plate 104 is fixedly connected to a backup power supply 105.

[0035] In this embodiment, it is necessary to further explain that the digital meter 101 is a dual-power, dual-communication surge arrester digital meter, equipped with RS485 and wireless communication. Dual communication technology is existing technology, so it will not be described in detail. The main power line 103 is connected to the main power supply, which is 220V AC or 48V DC. The backup power supply 105 serves as a backup power supply and is a lithium battery. The main power line 103 and the backup power supply 105 have dual power redundancy to ensure that it can still work when the power is off.

[0036] Reference Figure 5 and Figure 6 The magnetoelectric triggering component 2 includes an electromagnetic component 201. The top of the electromagnetic component 201 is electrically connected to the bottom of the main power line 103. The top of the backup power supply 105 is electrically connected to a conductor rod. The bottom of the electromagnetic component 201 is in contact with a conductive spring 202. The top of the conductor rod is electrically connected to two conductive springs 202. A vertical plate is fixedly connected to the bottom of the main power line 103. Side shells 203 are fixedly connected to both ends of the front of the vertical plate. A rectangular columnar space is formed between the two side shells 203. The electromagnetic component 201 and the conductive springs 202 are both located in the rectangular columnar space. A vent is provided on one side of the two side shells 203.

[0037] In this embodiment, it should be specifically explained that the electromagnetic component 201 and the conductive spring 202 are electrically connected to the main power line 103 and the backup power supply 105, and form a parallel circuit with the digital meter 101.

[0038] Reference Figure 7The electromagnetic component 201 includes a circular shell 2011. An upper conductive plate and a lower conductive plate are fixedly connected to the inner sides of the top and bottom ends of the circular shell 2011, respectively. The upper conductive plate is electrically connected to the main power line 103. A solenoid coil 2012 is electrically connected to the bottom of the upper conductive plate. A lower conductive plate is electrically connected to the bottom end of the solenoid coil 2012. A conductive strip is electrically connected to one side of the lower conductive plate. A wire is electrically connected to one end of the conductive strip. A movable plunger 2013 is movably sleeved on the inner side of the lower conductive plate. A guide block is fixedly connected to the bottom end of the movable plunger 2013. One side of the guide block is electrically connected to the wire. A spring 2014 is movably sleeved on the side of the movable plunger 2013. The top end of the spring 2014 is fixedly connected to the bottom of the lower conductive plate. The bottom end of the spring 2014 is fixedly connected to the top of the guide block. A conductor tongue plate 2015 is electrically connected to the bottom of the guide block.

[0039] In this embodiment, it should be specifically noted that the upper and lower conductive sheets are made of non-magnetic materials, such as aluminum alloy, and the movable plunger 2013 is a permanent magnet, preferably a neodymium magnet of grade N52. The gap between the solenoid coil 2012 and the movable plunger 2013 is 0.5-1mm to avoid friction.

[0040] When circulating current and reverse current occur in the backup power circuit, the reverse current flows through the solenoid 2012 and generates a magnetic field. The magnetic field force pushes the movable plunger 2013 upward, causing the conductor tongue 2015 to disengage from the conductive spring 202, thus breaking the backup power circuit and preventing the reverse current from flowing. When the circulating current and reverse current disappear, no current flows through the solenoid 2012, and no magnetic field can be generated. Under the action of the spring 2014, the conductor tongue 2015 is reinserted into the conductive spring 202, connecting the circuit and preventing the backup battery from being reverse-charged by the main power supply, which could cause overheating or even explosion.

[0041] Reference Figure 8 The pressure suppression component 3 includes an eddy current energy dissipation component 301. A linkage component 302 is installed on the side of the bottom end of the eddy current energy dissipation component 301. A potential energy component 303 is installed at the bottom end of the linkage component 302. The eddy current energy dissipation component 301 is rotatably sleeved on the side of the circular shell 2011. The back of the linkage component 302 is fixedly connected to the inner side of the side shell. The potential energy component 303 is fixedly connected to one side of the side shell.

[0042] Reference Figure 9 The eddy current energy dissipation component 301 includes a damping disk 3011, the top of the damping disk 3011 is provided with several heat dissipation vents, the inside of the damping disk 3011 contains several magnetic blocks 3012, the bottom of the damping disk 3011 is fixedly connected to a rotating ring 3013, and the bottom end of the side of the rotating ring 3013 is provided with gear teeth.

[0043] In this embodiment, it is necessary to further explain that the damping disk 3011 is made of aluminum alloy, with a diameter of 80mm and a thickness of 5mm. The magnetic block 3012 is a neodymium magnet with alternating N-S poles. Under a transient voltage of 100V / 1μs, the damping disk can rotate at 1200rpm, with a power consumption of ≥15W. The heat dissipation port is located above the magnetic block 3012, and the number of heat dissipation ports corresponds to the number of magnetic blocks 3012. The surface of the magnetic block 3012 is coated with thermal grease to ensure that the temperature rise is ≤40℃. Due to inertia, the damping disk 3011 rotates at high speed, causing the magnetic block 3012 to cut the magnetic field lines of the circumferential magnet array, generating eddy currents, which convert electrical energy into heat energy and dissipate it, suppressing instantaneous voltage spikes.

[0044] Reference Figure 10 The linkage component 302 includes a rotating shaft 3021, a gear 3022 fixedly connected to the top end of the rotating shaft 3021, a gear 3023 fixedly connected to the bottom end of the rotating shaft 3021, a fixing block movably sleeved on the side of the rotating shaft 3021, and the back of the fixing block fixedly connected to the inside of the side shell. The gear 3022 meshes with the rotating ring 3013.

[0045] The 1:2 reduction ratio of gear 1 (3022) and gear 2 (3023) ensures that the damping disc receives sufficient torque, while the rack travel is designed to be 15mm to match the conductor tongue plate tripping distance.

[0046] Reference Figure 11 The potential energy component 303 includes a guide rail block 3031, a movable plate 3032 placed inside the guide rail block 3031, a connecting block fixedly connected to the top of the movable plate 3032, an elastic element fixedly connected to the side of the connecting block, one end of the elastic element fixedly connected to the inside of the guide rail block 3031, a pin opening provided at one end of the movable plate 3032, the pin opening size being consistent with the bottom size of the conductor tongue plate 2015, the pin opening being movably sleeved on the conductor tongue plate 2015, and a rack fixedly connected to one side of the movable plate 3032, the rack meshing with a gear 3023.

[0047] In this embodiment, it should be specifically noted that the elastic element is a component with contractile properties, such as a spring;

[0048] When circulating current or reverse current occurs, the magnetoelectric trigger component 2 causes the conductor tongue plate 2015 to disengage from the conductive spring 202, thereby causing the conductor tongue plate 2015 to be pulled away from the moving plate 3032. The moving plate 3032 loses its fixation and moves rapidly towards the guide rail block 3031 under the action of the elastic element. During the movement of the moving plate 3032, the gear two 3023 is engaged and driven, thereby driving the gear one 3022 to rotate. Under the meshing relationship, the rotating ring 3013 also begins to rotate. The rotating ring 3013 drives the damping disk 3011 to rotate, causing the magnetic block 3012 to cut the magnetic field lines and generate eddy currents, converting electrical energy into heat energy for dissipation, suppressing instantaneous voltage spikes, and avoiding instantaneous overvoltage damage to the circuit or backup power supply.

[0049] The working principle of this invention is as follows: When circulating current and reverse current occur in the backup power circuit, the reverse current flows through the solenoid 2012 and generates a magnetic field. The magnetic field force pushes the movable plunger 2013 upward, causing the conductor tongue 2015 to disengage from the conductive spring 202, thus breaking the backup power circuit and preventing the reverse current from flowing. When the circulating current and reverse current disappear, no current flows through the solenoid 2012 and it cannot generate a magnetic field. Under the action of the spring 2014, the conductor tongue 2015 is reinserted into the conductive spring 202, connecting the circuit and preventing the backup battery from being reverse-charged by the main power supply, which could cause overheating or even explosion.

[0050] When circulating current or reverse current occurs, the magnetoelectric trigger component 2 causes the conductor tongue plate 2015 to disengage from the conductive spring 202, thereby causing the conductor tongue plate 2015 to be pulled away from the moving plate 3032. The moving plate 3032 loses its fixation and moves rapidly towards the guide rail block 3031 under the action of the elastic element. During the movement of the moving plate 3032, the gear two 3023 is engaged and driven, thereby driving the gear one 3022 to rotate. Under the meshing relationship, the rotating ring 3013 also begins to rotate. The rotating ring 3013 drives the damping disk 3011 to rotate, causing the magnetic block 3012 to cut the magnetic field lines and generate eddy currents, converting electrical energy into heat energy for dissipation, suppressing instantaneous voltage spikes, and avoiding instantaneous overvoltage damage to the circuit or backup power supply.

[0051] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0052] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0053] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A digital meter for a dual-power, dual-communication surge arrester, comprising a meter assembly (1), wherein the meter assembly (1) includes a digital meter (101), the back of the digital meter (101) is electrically connected to a main power supply line (103), and a backup power supply (105) is fixedly connected to the bottom of the back of the digital meter (101), characterized in that, The magnetoelectric triggering component (2) includes an electromagnetic component (201), and a conductive spring piece (202) is electrically attached to the bottom end of the electromagnetic component (201). The main power line (103) and the backup power supply (105) form a parallel circuit with the digital meter (101) through the electromagnetic component (201) and the conductive spring (202). The voltage suppression component (3) includes an eddy current energy dissipation component (301). A linkage component (302) is installed on the side of the bottom end of the eddy current energy dissipation component (301). A potential energy component (303) is installed at the bottom end of the linkage component (302). The electromagnetic component (201) uses circulating current and backflow current to generate a magnetic field force to disconnect from the conductive spring (202) and prevent the main power supply from charging in reverse. The potential energy component (303) uses the electromagnetic component (201) to pull away from the conductive spring (202) to unlock. The eddy current energy dissipation component (301) rotates at high speed under the action of the contraction inertia of the potential energy component (303) to cut the magnetic field lines and generate eddy currents, suppressing instantaneous voltage spikes.

2. The digital meter for a dual-power, dual-communication surge arrester according to claim 1, characterized in that: A magnetoelectric trigger assembly (2) is fixedly connected to the back of the meter assembly (1), and a pressure suppressor assembly (3) is fixedly connected to the inside of the magnetoelectric trigger assembly (2).

3. A digital meter for a dual-power, dual-communication surge arrester according to claim 2, characterized in that: The digital meter (101) has two surge arrester connection posts (102) electrically connected to the rear end of its top. The digital meter (101) has two mounting strips fixedly connected to the rear end of its bottom. The mounting plates (104) are fixedly connected to the back of the two mounting strips. The top of the mounting plates (104) is fixedly connected to a backup power supply (105).

4. A digital meter for a dual-power, dual-communication surge arrester according to claim 3, characterized in that: The top of the electromagnetic component (201) is electrically connected to the bottom of the main power line (103), and the top of the backup power supply (105) is electrically connected to a conductor rod. The bottom of the electromagnetic component (201) is attached to a conductive spring (202). The top of the conductor rod is electrically connected to two conductive springs (202). The bottom of the main power line (103) is fixedly connected to a vertical plate. Both ends of the front of the vertical plate are fixedly connected to side shells (203). A rectangular columnar space is formed between the two side shells (203). The electromagnetic component (201) and the conductive springs (202) are both located in the rectangular columnar space. A vent is provided on one side of the two side shells (203).

5. A digital meter for a dual-power, dual-communication surge arrester according to claim 4, characterized in that: The electromagnetic component (201) includes a circular shell (2011). An upper conductive plate and a lower conductive plate are fixedly connected to the inner sides of the top and bottom ends of the circular shell (2011), respectively. The upper conductive plate is electrically connected to the main power line (103). A solenoid coil (2012) is electrically connected to the bottom of the upper conductive plate. The bottom end of the solenoid coil (2012) is electrically connected to the lower conductive plate. A conductive strip is electrically connected to one side of the lower conductive plate. A wire is electrically connected to one end of the conductive strip. A movable plunger (2013) is movably sleeved on the inner side of the lower conductive plate.

6. A digital meter for a dual-power, dual-communication surge arrester according to claim 5, characterized in that: The bottom end of the movable plunger (2013) is fixedly connected to a guide block. One side of the guide block is electrically connected to a wire. A spring (2014) is movably sleeved on the side of the movable plunger (2013). The top end of the spring (2014) is fixedly connected to the bottom of the lower conductive plate. The bottom end of the spring (2014) is fixedly connected to the top of the guide block. A conductor tongue plate (2015) is electrically connected to the bottom of the guide block.

7. A digital meter for a dual-power, dual-communication surge arrester according to claim 6, characterized in that: The eddy current energy dissipation component (301) is rotatably sleeved on the side of the circular shell (2011), the back of the linkage component (302) is fixedly connected to the inner side of the side shell, and the potential energy component (303) is fixedly connected to one side of the side shell.

8. A digital meter for a dual-power, dual-communication surge arrester according to claim 7, characterized in that: The eddy current energy dissipation component (301) includes a damping disk (3011), the top of which is provided with several heat dissipation vents, the inside of which is provided with several magnetic blocks (3012), and a rotating ring (3013) is fixedly connected to the bottom of the damping disk (3011). The bottom end of the side of the rotating ring (3013) is provided with gear teeth.

9. A digital meter for a dual-power, dual-communication surge arrester according to claim 8, characterized in that: The linkage component (302) includes a rotating shaft (3021), a gear 1 (3022) is fixedly connected to the top end of the rotating shaft (3021), a gear 2 (3023) is fixedly connected to the bottom end of the rotating shaft (3021), a fixing block is movably sleeved on the side of the rotating shaft (3021), the back of the fixing block is fixedly connected to the inside of the side shell, and the gear 1 (3022) meshes with the rotating ring (3013).

10. A digital meter for a dual-power, dual-communication surge arrester according to claim 9, characterized in that: The potential energy component (303) includes a guide block (3031), a movable plate (3032) is placed inside the guide block (3031), a connecting block is fixedly connected to the top of the movable plate (3032), an elastic element is fixedly connected to the side of the connecting block, one end of the elastic element is fixedly connected to the inside of the guide block (3031), a pin is provided at one end of the movable plate (3032), the size of the pin is consistent with the bottom size of the conductor tongue plate (2015), the pin is movably sleeved on the conductor tongue plate (2015), a rack is fixedly connected to one side of the movable plate (3032), and the rack meshes with gear two (3023).

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