Three-phase intelligent instrumented electric energy meter capable of being read remotely

Abstract

The invention provides a remotely readable three-phase intelligent instrumented electric energy meter, and relates to the field of electric energy meters. The three-phase intelligent instrumented electric energy meter capable of being remotely read comprises a shell, the shell is formed by an upper shell and a lower shell in a matched mode, a circuit board is arranged in the middle of the interior of the shell, a driving cavity is formed in the top of the shell, the front side and the rear side of the driving cavity are connected with the upper shell and the lower shell respectively, and a heat dissipation assembly is arranged on the rear side of the lower shell; a driving assembly is arranged in the middle of the interior of the driving cavity. The heat dissipation assembly comprises two air supply columns arranged on the rear side of the lower shell, pistons are arranged in the air supply columns in a sliding mode, reset springs are arranged in the air supply columns, pull wires are connected to the tops of the pistons, and one-way air outlet holes are formed in the air supply columns. The driving assembly drives the heat dissipation assembly to fully dissipate accumulated heat on the two sides of the circuit board in the electric energy meter, circulating heat dissipation is achieved, the effect is good, and electronic elements are protected.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meters, and in particular to a three-phase intelligent Internet of Things electric energy meter that can be read remotely. Background Art

[0002] Three-phase smart energy meters are used to measure three-phase electricity. Smart IoT meters achieve high-precision metering through digital processing. Voltage dividers and current transformers collect three-phase voltage and current signals and convert them into electrical signals. Application-specific integrated circuits then filter, amplify, and digitize these signals. The meter calculates instantaneous power using the power integration method—voltage multiplied by current multiplied by power factor—and then accumulates the energy. Electronic meters offer more functionality, including support for harmonic analysis, remote communication, and even built-in prepayment modules in some models. They are suitable for smart grid and demand management scenarios.

[0003] The existing three smart energy meters mainly integrate current transformers and voltage dividers on the circuit board and work with related data processing chips to calculate and collect voltage, current and electric energy data. In order to facilitate remote management and control, a remote communication module is integrated on the circuit board so that the energy meter can be read and used remotely.

[0004] When a traditional mechanical energy meter heats up, it maintains normal heat dissipation and maintains good operation because it only contains a current transformer and a voltage coil. However, the internal circuit board components, current transformer, and voltage divider of the three-item smart IoT energy meter are integrated on the circuit board. The heat generated by these components accumulates on both sides of the circuit board and gradually radiates outward. The circuit board also houses many chips and electronic components for computing. Prolonged exposure to high temperatures will inevitably shorten the lifespan of these electronic components.

[0005] Patent application number 2024105716609 discloses a three-item smart IoT electricity meter. This electricity meter installs multiple partitions on the inner wall of the display and control module in an offset manner, forcing air to flow along a tortuous path, thereby increasing the time the air stays inside the display and control module, allowing heat to be transferred to the flowing air more quickly, thereby improving the efficiency of heat dissipation. At the same time, the air is more evenly distributed in the display and control module, ensuring more uniform heat dissipation, which helps to reduce thermal stress or performance degradation in certain areas due to poor heat dissipation. The above patent only adjusts the air entry path into a curve, increasing the air flow rate and the time it stays inside the meter, but does not directly dissipate the heat radiated by the electronic components around the circuit board. In addition, when actually used, the electronic components, voltage dividers, and current transformers on the circuit board will form a barrier gap between each other, which will cause heat to accumulate and be difficult to dissipate. The air flowing through them cannot eliminate the heat in the gaps.

[0006] Based on the above description, the present application proposes a three-phase smart IoT electricity meter that can be read remotely. Summary of the Invention

[0007] In response to the shortcomings of the existing technology, the present invention provides a three-phase smart IoT electricity meter that can be read remotely, which solves the problem that when the existing smart electricity meter is actually used, heat accumulates around the circuit board and is difficult to dissipate, thus affecting the life of electronic components.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a three-phase smart IoT electric energy meter capable of remote reading, comprising: The housing is formed by an upper shell and a lower shell that cooperate with each other. A circuit board is provided in the middle of the housing. A drive cavity is installed on the top of the housing. The front and rear sides of the drive cavity are respectively connected to the upper shell and the lower shell. A heat dissipation component is provided on the rear side of the lower shell. A drive component is provided in the middle of the drive cavity; The heat dissipation assembly includes two air supply columns arranged on the rear side of the lower shell, each of which has a piston sliding inside the air supply column, and a one-way air intake valve for air intake of the air supply column is provided at the bottom of the air supply column. A return spring is provided in the air supply column, one end of the return spring is connected to the piston, and the other end of the return spring is connected to the bottom of the air supply column. The top of the piston is connected to a traction line, and a one-way air outlet is provided on the air supply column, and the one-way air outlet is connected to a hose.

[0009] Preferably, the circuit board and the shell are sealed and connected, and the shell is divided into two independent and sealed chambers in the front and rear, one of which is in the upper shell and the other is in the lower shell. Both side walls of the upper shell and the lower shell are provided with exhaust holes for air outflow, and the exhaust holes are connected to the corresponding chambers. Exhaust square tubes are symmetrically installed in the chambers of the upper shell and the lower shell. Each of the exhaust square tubes is provided with multiple flexible tubes from top to bottom on the side close to the circuit board, and the air outlet ends of the flexible tubes correspond to the electronic components of the circuit board. The exhaust square tube in the upper shell is connected to the hose of one of the air supply columns, and the exhaust square tube in the lower shell is connected to the hose of the other air supply column.

[0010] Preferably, the driving component includes a rotating shaft rotating in the middle of the driving cavity, an aluminum disk is fixed on the upper part of the rotating shaft, and a parallel coil electromagnet and a series coil electromagnet are respectively provided on the upper and lower parts of one side of the aluminum disk, and a braking magnet is provided on the other side of the aluminum disk. Gear one is fixed to the lower part of the rotating shaft, and gear two is meshed with one side of gear one, and a first bevel gear is fixed to the bottom of gear two, and the first bevel gear is meshed with a second bevel gear, and a synchronous wheel assembly is fixed to one side of the second bevel gear, and the end of the synchronous wheel assembly away from the second bevel gear is connected to a driving shaft, and the driving shaft rotates in the driving cavity, and crankshaft parts are provided on both sides of the driving shaft, and the end points of the crankshaft parts are respectively connected to the traction line.

[0011] Preferably, the parallel coil electromagnet is arranged directly above the series coil electromagnet, and the parallel coil electromagnet and the series coil electromagnet are both installed in the driving cavity. The parallel coil electromagnet is connected in parallel to the electric energy meter, and the series coil electromagnet is connected in series to the electric energy meter.

[0012] Preferably, the braking magnet is U-shaped and the U-shaped openings are arranged at the upper and lower parts of the aluminum disk, and the braking magnet is installed in the driving cavity.

[0013] Preferably, the synchronous wheel assembly includes two synchronous wheels and a synchronous belt for connecting the two synchronous wheels, wherein one synchronous wheel is fixedly mounted on one side of the second bevel gear, and the other synchronous wheel is fixedly mounted on the drive shaft.

[0014] Preferably, the second bevel gear is rotatably mounted in the driving cavity, and the second gear is rotatably mounted in the driving cavity.

[0015] Preferably, two through holes for the rotation of the crankshaft are opened at the lower rear side of the driving cavity.

[0016] Preferably, a communication module for remote communication is provided on the circuit board, and a display screen connected to the circuit board is provided on the top of the upper shell.

[0017] Working principle: When the electric energy meter is actually used, the voltage divider and current transformer on the circuit board cooperate with each other and the chip on the circuit board to count the electric energy and display it on the display screen. The electric energy data can also be sent to the control center platform through the communication module. This is an existing well-known technology. When the electric energy meter is operating normally, the parallel coil electromagnet and the series coil electromagnet generate alternating magnetic flux. The magnetic flux passes through the aluminum disk to generate eddy currents on the aluminum disk. The interaction between these induced eddy currents and the magnetic flux will generate a torque to push the aluminum disk to rotate. When the aluminum disk rotates, gear one drives gear two through the rotating shaft, and gear two rotates the second bevel gear through the first bevel gear that rotates synchronously at the bottom. The second bevel gear drives the synchronous wheel assembly that rotates synchronously to rotate, and the synchronous wheel assembly drives the drive shaft to rotate. The drive shaft rotates the traction line and the compound through the crankshaft part. The positioning spring drives the piston to reciprocate in the air supply column. When the piston reciprocates in the air supply column, it pushes the corresponding air supply column to form a negative pressure. Air is taken in through the one-way air inlet valve. When the piston moves downward, the gas enters the hose through the one-way air outlet and then enters the corresponding exhaust square tube. The gas in the exhaust square tube is blown onto the corresponding electronic components on the circuit board through the flexible tube, directly acting on the electronic components, so that the radiated heat accumulated around them and on both sides of the circuit board is blown away. Since the air supply column continuously supplies air to the chamber, the gas in the chamber will be discharged from the exhaust hole, and the heat is taken out when it is discharged. The process of repeated exhaust is the process of repeatedly discharging the heat from both sides of the circuit board. This setting can directly act on the heat dissipation of the circuit board, protect the electronic components on the circuit board, and enable it to operate stably for a long time.

[0018] The present invention provides a three-phase intelligent IoT electric energy meter that can be read remotely. It has the following beneficial effects: The present invention drives the aluminum plate to rotate through the action of the parallel coil electromagnet and the series coil electromagnet. The aluminum plate drives the first bevel gear to drive the second bevel gear to rotate through the rotating shaft. The second bevel gear drives the synchronous wheel assembly to rotate. The synchronous wheel assembly drives the driving shaft to rotate. The driving shaft drives the traction line and the return spring to drive the piston to reciprocate in the air supply column through the crankshaft part. When the piston reciprocates in the air supply column, it pushes the corresponding air supply column to form a negative pressure. The air supply column is inletted through the one-way air inlet valve. When the piston moves downward, the gas enters through the one-way air outlet hole. The hose then enters the corresponding exhaust square tube, and the gas in the exhaust square tube is blown onto the corresponding electronic components on the circuit board through the flexible tube, directly acting on the electronic components, so that the radiant heat accumulated around them and on both sides of the circuit board is blown away. Since the air supply column continuously supplies air into the chamber, the gas in the chamber will be discharged from the exhaust hole, and the heat is taken out when it is discharged. The repeated exhaust process is the process of repeatedly dissipating the heat on both sides of the circuit board. This setting can directly act on the heat dissipation of the circuit board, protect the electronic components on the circuit board, and enable it to operate stably for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 It is a front cross-sectional view of the lower shell of the present invention; Figure 3 A plan view of the lower shell of the present invention; Figure 4 is a schematic side view of the circuit board of the present invention; Figure 5 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 6 For the present invention Figure 2 Enlarged view of point B in the middle; Figure 7 This is a side structural diagram of the meshing of gear 1 and gear 2 of the present invention.

[0020] Among them, 1. lower shell; 2. upper shell; 3. drive chamber; 4. exhaust hole; 5. air supply column; 6. return spring; 7. piston; 8. one-way air outlet; 9. rotating shaft; 10. parallel coil electromagnet; 11. series coil electromagnet; 12. aluminum disk; 13. drive assembly; 14. crankshaft; 15. drive shaft; 16. brake magnet; 17. gear one; 18. gear two; 19. first bevel gear; 20. second bevel gear; 21. synchronous wheel assembly; 22. exhaust square pipe; 23. flexible tube; 24. circuit board; 25. hose; 26. one-way air intake valve; 27. heat dissipation assembly; 28. traction line. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0022] Example: like Figure 1-Figure 7 As shown, an embodiment of the present invention provides a three-phase smart IoT electric energy meter that can be read remotely, including: The housing is formed by the cooperation of the upper shell 2 and the lower shell 1. A circuit board 24 is provided in the middle of the housing. A drive cavity 3 is installed on the top of the housing. The front and rear sides of the drive cavity 3 are connected to the upper shell 2 and the lower shell 1 respectively. A heat dissipation component 27 is provided on the rear side of the lower shell 1. A drive component 13 is provided in the middle of the drive cavity 3. The heat dissipation component 27 includes two air supply columns 5 arranged on the rear side of the lower shell 1, and a piston 7 is sliding inside the air supply column 5. A one-way air intake valve 26 for air intake of the air supply column 5 is provided at the bottom of the air supply column 5. The one-way air intake valve 26 is a one-way valve that can only intake air into the air supply column 5. A return spring 6 is provided in the air supply column 5, one end of the return spring 6 is connected to the piston 7, and the other end of the return spring 6 is connected to the bottom of the air supply column 5. The top of the piston 7 is connected to a traction line 28, and a one-way air outlet 8 is provided on the air supply column 5. A one-way air outlet 8 is provided with a one-way valve that can only exhaust air to the hose 25, and the one-way air outlet 8 is connected to the hose 25; the return spring 6 and the traction line 28 pull each other to realize the continuous reciprocating motion of the piston 7 in the air supply column 5. As long as the electricity meter is working, the piston 7 will work to realize air intake and exhaust.

[0023] The circuit board 24 is sealed around the shell and is divided into two independent and sealed chambers in the front and rear. One chamber is in the upper shell 2 and the other chamber is in the lower shell 1. The two side walls of the upper shell 2 and the lower shell 1 are provided with exhaust holes 4 for air outflow, which are used to discharge heat. The exhaust holes 4 are connected to the corresponding chambers. Exhaust square tubes 22 are symmetrically installed in the chambers of the upper shell 2 and the lower shell 1. Each exhaust square tube 22 is provided with multiple flexible tubes 23 from top to bottom on the side close to the circuit board 24. The flexible tubes 23 are provided on the upper and lower sides of the upper and lower shells 2. The air outlet ends of the tube 23 correspond to the electronic components on the circuit board 24. The exhaust square tube 22 in the upper shell 2 is connected to the hose 25 of one of the air supply columns 5, and the exhaust square tube 22 in the lower shell 1 is connected to the hose 25 of the other air supply column 5. The flexible tube 23 can be bent at will according to use without affecting its air supply. The flexible tube 23 can be bent to the gaps of the electronic components on the circuit board 24, so as to ensure that the heat accumulated in the electronic components is quickly blown out in the chamber, and the chamber continuously supplies and exhausts air to achieve heat dissipation.

[0024] The driving assembly 13 includes a rotating shaft 9 that rotates in the middle of the driving chamber 3. An aluminum disk 12 is fixed to the upper part of the rotating shaft 9. The upper and lower parts of one side of the aluminum disk 12 are respectively provided with a parallel coil electromagnet 10 and a series coil electromagnet 11. A brake magnet 16 is provided on the other side of the aluminum disk 12. A gear 17 is fixed to the lower part of the rotating shaft 9. A gear 2 18 is engaged with one side of the gear 17. A first bevel gear 19 is fixed to the bottom of the gear 2 18. The first bevel gear 19 is engaged with a second bevel gear 20. A synchronous wheel assembly 21 is fixed to one side of the second bevel gear 20. The synchronous wheel assembly 21 is away from one end of the second bevel gear 20. A drive shaft 15 is connected, and the drive shaft 15 rotates in the drive cavity 3. Crankshafts 14 are provided on both sides of the drive shaft 15. The end points of the crankshafts 14 are respectively connected to the traction lines 28. When the aluminum disk 12 drives the rotating shaft 9 to rotate, when the electric energy meter operates normally, the parallel coil electromagnet 10 and the series coil electromagnet 11 generate alternating magnetic flux. The magnetic flux passes through the aluminum disk 12 to generate eddy currents in the aluminum disk 12. The interaction between these induced eddy currents and the magnetic flux will generate a torque to drive the aluminum disk 12 to rotate. When the aluminum disk 12 rotates, the gear 1 17 drives the gear 2 18 through the rotating shaft 9. Gear 2 18 rotates the second bevel gear 20 through the first bevel gear 19 that rotates synchronously at the lower part, and the second bevel gear 20 drives the synchronous wheel assembly 21 that rotates synchronously to rotate, and the synchronous wheel assembly 21 drives the drive shaft 15 to rotate, and the drive shaft 15 drives the traction line 28 and the return spring 6 to drive the piston 7 to reciprocate in the air supply column 5 through the crankshaft part 14. When the piston 7 reciprocates in the air supply column 5, it pushes the corresponding air supply column 5 to form a negative pressure, and the air supply column 5 is inwardly inlet through the one-way air inlet valve 26. When the piston 7 moves downward, the gas enters the hose 25 through the one-way air outlet 8 and then enters the corresponding exhaust Inside the square gas tube 22, the gas in the exhaust square tube 22 is blown onto the corresponding electronic components on the circuit board 24 through the flexible tube 23, directly acting on the electronic components, so that the radiant heat accumulated around them and on both sides of the circuit board 24 is blown away. Since the air supply column 5 continuously supplies air into the chamber, the gas in the chamber will be discharged from the exhaust hole 4, and the heat is taken out when it is discharged. The repeated exhaust process is the process of repeatedly discharging the heat on both sides of the circuit board 24. Such a setting can directly act on the heat dissipation of the circuit board 24, protect the electronic components on the circuit board 24, and enable it to operate stably for a long time.

[0025] The parallel coil electromagnet 10 is positioned directly above the series coil electromagnet 11. Both the parallel coil electromagnet 10 and the series coil electromagnet 11 are mounted within the drive cavity 3. The parallel coil electromagnet 10 is connected in parallel to the electric energy meter, while the series coil electromagnet 11 is connected in series to the electric energy meter. The brake magnet 16 is U-shaped, with U-shaped openings located at the top and bottom of the aluminum disk 12. Braking magnet 16 is mounted within the drive cavity 3. When the electric energy meter is connected to the circuit being measured, alternating current flows through the current coil and voltage coil, generating alternating magnetic flux between the parallel coil electromagnet 10 and the series coil electromagnet 11. This alternating magnetic flux passes through the aluminum disk 12, inducing eddy currents in the disk. These eddy currents, in turn, are acted upon by forces in the magnetic field, generating torque and causing the disk 12 to rotate. The greater the power consumed by the load, the greater the current flowing through the parallel coil electromagnet 10, the greater the eddy currents induced in the disk 12, and the greater the torque that causes the disk 12 to rotate. In other words, the magnitude of the torque is directly proportional to the power consumed by the load. The greater the power, the greater the torque, and the faster the aluminum disk 12 rotates. When the aluminum disk 12 rotates, it is affected by the braking torque generated by the brake magnet 16. The braking torque is opposite to the active torque. The magnitude of the braking torque is proportional to the rotational speed of the aluminum disk 12. The faster the aluminum disk 12 rotates, the greater the braking torque. When the active torque and the braking torque reach a temporary balance, the aluminum disk 12 will rotate at a constant speed. The electrical energy consumed by the load is proportional to the number of revolutions of the aluminum disk 12. When the aluminum disk 12 rotates, it drives the rotating shaft 9 to absorb and discharge the air in the air supply column 5, thereby achieving direct heat dissipation of the circuit board 24.

[0026] The synchronous wheel assembly 21 includes two synchronous wheels and a synchronous belt for connecting the two synchronous wheels. One synchronous wheel is fixedly mounted on one side of the second bevel gear 20, and the other synchronous wheel is fixedly mounted on the drive shaft 15. The cooperation between the synchronous belts will prevent the drive shaft 15 from rotating and failing, and the output can be stable. The second bevel gear 20 is rotatably mounted in the drive cavity 3 to ensure the synchronous rotation of the synchronous wheel assembly 21. The second gear 18 is rotatably mounted in the drive cavity 3 to ensure the transmission output.

[0027] Two through holes for the crankshaft 14 to rotate are provided at the lower rear portion of the driving chamber 3 . The through holes provide a space for the crankshaft 14 to rotate, so that the crankshaft 14 can rotate without restriction.

[0028] A communication module for remote communication is provided on the circuit board 24, and a display screen connected to the circuit board 24 is provided on the top of the upper shell 2. When the electric energy meter is actually in use, the voltage divider and current transformer on the circuit board 24 cooperate with each other and the chip on the circuit board 24 to count the electric energy and display it through the display screen. The electric energy data can also be sent to the control center platform through the communication module. This is an existing well-known technology, and the technical solution in this application will not be described in detail. The communication module in this application can transmit data to the remote control center through signal lines or base station communications, and the display screen can display the monitoring data of the electric energy meter.

[0029] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A three-phase smart IoT electric energy meter capable of remote reading, characterized by: include: A shell, wherein the shell is formed by an upper shell (2) and a lower shell (1) cooperating with each other, a circuit board (24) is provided in the middle of the shell, a driving cavity (3) is installed on the top of the shell, the front and rear sides of the driving cavity (3) are connected to the upper shell (2) and the lower shell (1) respectively, a heat dissipation component (27) is provided on the rear side of the lower shell (1), and a driving component (13) is provided in the middle of the driving cavity (3); The heat dissipation assembly (27) includes two air supply columns (5) arranged on the rear side of the lower shell (1), a piston (7) slides inside the air supply columns (5), a one-way air intake valve (26) for air intake of the air supply column (5) is provided at the bottom of the air supply column (5), a return spring (6) is provided in the air supply column (5), one end of the return spring (6) is connected to the piston (7), and the other end of the return spring (6) is connected to the bottom of the air supply column (5), the top of the piston (7) is connected to a traction line (28), and a one-way air outlet (8) is provided on the air supply column (5), and the one-way air outlet (8) is connected to a hose (25).

2. The three-phase smart IoT electric energy meter capable of remote reading according to claim 1, characterized in that: The circuit board (24) is sealed with the shell and the shell is divided into two independent and sealed chambers in front and back, one of which is in the upper shell (2) and the other is in the lower shell (1). Both side walls of the upper shell (2) and the lower shell (1) are provided with exhaust holes (4) for air outflow, and the exhaust holes (4) are connected to the corresponding chambers. Exhaust square tubes (22) are symmetrically installed in the chambers of the upper shell (2) and the lower shell (1). A plurality of flexible tubes (23) are provided from top to bottom on the side of each exhaust square tube (22) close to the circuit board (24). The air outlet ends of the flexible tubes (23) correspond to the electronic components of the circuit board (24). The exhaust square tube (22) in the upper shell (2) is connected to the hose (25) of one of the air supply columns (5), and the exhaust square tube (22) in the lower shell (1) is connected to the hose (25) of the other air supply column (5).

3. The three-phase smart IoT electric energy meter capable of remote reading according to claim 1, characterized in that: The driving assembly (13) includes a rotating shaft (9) rotating in the middle of the driving chamber (3), an aluminum disk (12) is fixed on the upper part of the rotating shaft (9), and a parallel coil electromagnet (10) and a series coil electromagnet (11) are respectively provided on the upper and lower parts of one side of the aluminum disk (12), and a braking magnet (16) is provided on the other side of the aluminum disk (12), and a gear 1 (17) is fixed on the lower part of the rotating shaft (9), and a gear 2 (18) is meshed with one side of the gear 1 (17), and the bottom of the gear 2 (18) is fixed on the lower part of the rotating shaft (9). A first bevel gear (19) is fixed to the first bevel gear (19), the first bevel gear (19) is meshed with a second bevel gear (20), a synchronous wheel assembly (21) is fixed to one side of the second bevel gear (20), and an end of the synchronous wheel assembly (21) away from the second bevel gear (20) is connected to a drive shaft (15), the drive shaft (15) rotates in the drive cavity (3), and crankshafts (14) are provided on both sides of the drive shaft (15), and the end points of the crankshafts (14) are respectively connected to the traction lines (28).

4. The three-phase smart IoT electric energy meter capable of remote reading according to claim 3, characterized in that: The parallel coil electromagnet (10) is arranged directly above the series coil electromagnet (11), and both the parallel coil electromagnet (10) and the series coil electromagnet (11) are installed in the drive cavity (3). The parallel coil electromagnet (10) is connected in parallel to the electric energy meter, and the series coil electromagnet (11) is connected in series to the electric energy meter.

5. The three-phase smart IoT electric energy meter capable of remote reading according to claim 3, characterized in that: The braking magnet (16) is U-shaped, and the U-shaped openings are arranged at the upper and lower parts of the aluminum disk (12). The braking magnet (16) is installed in the driving cavity (3).

6. The three-phase smart IoT electric energy meter capable of remote reading according to claim 3, characterized in that: The synchronous wheel assembly (21) includes two synchronous wheels and a synchronous belt for connecting the two synchronous wheels, wherein one synchronous wheel is fixedly mounted on one side of the second bevel gear (20), and the other synchronous wheel is fixedly mounted on the drive shaft (15).

7. The remotely readable three-phase smart IoT electric energy meter according to claim 3, characterized in that: The second bevel gear (20) is rotatably mounted in the drive cavity (3), and the second gear (18) is rotatably mounted in the drive cavity (3).

8. The three-phase smart IoT electric energy meter capable of remote reading according to claim 3, characterized in that: Two through holes for the rotation of the crankshaft portion (14) are provided at the lower rear portion of the drive chamber (3).

9. The three-phase smart IoT electric energy meter capable of remote reading according to claim 1, characterized in that: A communication module for remote communication is provided on the circuit board (24), and a display screen connected to the circuit board (24) is provided on the top of the upper shell (2).

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