A multifunctional smart electric meter

Abstract

The present invention relates to the technical field of electric meters, and in particular to a multifunctional intelligent electric meter, comprising an electric meter body, a terminal mounting portion, located at the bottom of the electric meter body and used for assembling connection terminals; a live wire portion and a neutral wire portion, both of which are arranged inside the terminal mounting portion and isolated by a partition block, for connecting wires entering and leaving the electric meter body; wherein the live wire portion comprises a telescopic component arranged inside the terminal mounting portion, both sides of the telescopic component are provided with docking components that can be separated up and down, and the docking components are provided with detection units for detecting the number of wires; by detecting the values ​​of angle sensors located on both sides of the movable block and connected to the conductive arms, it is determined whether there is electricity theft. Once the control system detects the electricity theft, the docking components are placed in a separated state. After the docking components are separated, the short-circuit wire cannot shunt the current in the wire, thereby effectively preventing the occurrence of electricity theft.

Description

Technical Field

[0001] The present invention relates to the technical field of electric meters, and in particular to a multifunctional intelligent electric meter. Background Art

[0002] As an instrument used to accurately measure electric energy, the electric meter plays a vital role in the power system. It is responsible for recording the user's monthly electricity consumption and using it as the basis for electricity bill settlement. However, during the operation of the electric meter, some electricity thieves use a variety of illegal technical means, such as interfering with, tampering with or destroying electric energy metering equipment and transmission lines, in order to illegally obtain electric energy at low or no cost, thereby evading the payment of electricity bills.

[0003] However, the current anti-electricity theft measures taken by electricity meters are relatively simple, and many electricity meters only rely on anti-tampering stickers as a basic means of protection. This type of method not only fails to issue warnings based on the actual situation of electricity theft, but also fails to provide warning information quickly after the meter is illegally disassembled. Moreover, with the development of technology, users' electricity theft methods are becoming increasingly diverse and more covert, which undoubtedly poses a severe challenge to the safe operation of the power system and the recovery of electricity charges.

[0004] In response to the above problems, a Chinese patent with application number 202010878284.X discloses an anti-electricity theft meter box, including a box body, a top cover, a box door, a door-controlled switch, and a control alarm circuit. The control alarm circuit includes a control circuit module and an alarm circuit module, wherein: the top cover is arranged on the upper part of the box body; the box door is arranged on one side of the box body; the control alarm circuit is arranged inside the box body and outside the box door; the door-controlled switch is connected to the control alarm circuit. The meter box realizes the function of triggering an alarm when the door of the meter box is opened through the ingenious design of the door-controlled switch; at the same time, through the coordinated use of the electric meter in the control alarm circuit, the alarm information can be transmitted to the system background to notify the staff, and the alarm function can be controlled to be cancelled when they are doing their daily work, which not only ensures the deterrent effect, but also retains the flexibility of the alarm, and is highly practical.

[0005] Although the above patent can realize the alarm function through the alarm circuit, it has limitations under certain circumstances. For users who use independent electricity meters, especially in house rental scenarios, an independent electricity meter is usually installed in each rental room to record electricity usage, and these meters are often not equipped with meter boxes and are rarely subject to regular inspections. A major problem caused by this setting is that if electricity theft occurs, due to the lack of protection of the meter box and the lack of regular inspections, and the low level of intelligence, the electricity theft is difficult to be discovered in time by the outside world. This not only causes economic losses to the power industry, but also brings greater electricity safety risks to the users themselves.

[0006] In addition, when multiple high-power devices are used at the same time, the power load will increase dramatically, and the current may exceed the rated carrying capacity of the meter or circuit. In this case, the coil and resistor inside the meter will generate a lot of heat due to the excessive current, which may cause the meter to be damaged or even burned. More seriously, the overload current may also cause a short circuit in the line, which may cause safety accidents such as fire, posing a safety hazard.

[0007] In view of this, it is particularly critical and urgent to develop a method that can effectively deal with the above-mentioned technical difficulties and provide a multifunctional smart electric meter. Summary of the invention

[0008] The purpose of the present invention is to provide a multifunctional smart electric meter to solve the technical problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solutions: A multifunctional smart electric meter, comprising an electric meter body; The terminal mounting portion is located at the bottom of the meter body and is used to assemble the connection terminals; The live wire part and the neutral wire part, both of which are arranged inside the terminal mounting part and separated by a separator block, are used to connect the wires entering and leaving the meter body; Wherein, the live wire part comprises a telescopic component arranged inside the terminal mounting part, and both sides of the telescopic component are provided with a docking component which can be separated up and down, and the docking component is provided with a detection unit for detecting the number of wires; When the detection unit detects that the number of wires on the docking component exceeds a preset number, the telescopic component performs an extension action, thereby realizing the upper and lower separation operation of the docking component.

[0010] Preferably, the telescopic component comprises: A fixing block is arranged inside the terminal mounting portion and serves to separate the two sets of docking components; The movable block is located above the fixed block, and a pushing member is arranged between the two. The pushing member is connected to a power device arranged inside the electric meter body.

[0011] Preferably, the docking component comprises: A first docking module, which is arranged inside the terminal mounting portion and is used to receive the wire; The second docking module is arranged above the first docking module, and both of the opposite sides of the first docking module are provided with a placement groove; The clamping bolt is arranged on the top of the second docking module. When the first docking module and the second docking module are in a docking state, the wire is fixed to the placement groove by rotating the clamping bolt.

[0012] Preferably, the second docking modules located on both sides of the movable block are fixedly connected to the movable block itself.

[0013] Preferably, the detection unit comprises: Conductive rods, which are symmetrically arranged on both sides of the first docking module and are used to transmit the current of the wire; Deflection slots, whose arrays are distributed on both sides of the first docking module; The conductive arms are arranged in an array on the outer wall of the conductive rod and are rotatably connected to the conductive rod, and can be deflected inside the deflection slot.

[0014] Preferably, the conductive arms on both sides of the first docking module have different lengths, the conductive arm on one side of the first docking module contacts the clamping bolt, and the conductive arm on the other side does not contact the clamping bolt.

[0015] Preferably, the end and side surfaces of the conductive arm are both arranged in a curved surface; and the end of the clamping bolt is arranged in a wedge shape.

[0016] Preferably, a disconnecting device is provided at the bottom of the first docking module, and the disconnecting device comprises: A temperature sensing component, wherein a mounting groove is provided at the bottom of the first docking module, and a temperature sensing component is provided inside the mounting groove; A movable plate is arranged inside the mounting groove and fixedly connected to the temperature sensing element. A clamping groove is arranged on the outer side of the movable plate, and the clamping groove is clamped with an internal clamping block arranged in the mounting groove. The connecting piece is symmetrically arranged on the top of the movable disk, and one end of the connecting piece away from the movable disk is respectively connected to the corresponding conductive arms.

[0017] Preferably, a cover is provided on the top of the terminal mounting portion, and the cover is connected to the partition block via a bolt assembly.

[0018] Preferably, the outer side of the terminal mounting portion is provided with sockets distributed in an array, and the sockets correspond to the wires entering and exiting the live wire portion and the neutral wire portion respectively.

[0019] Technical effects and advantages of the present invention: 1. The present invention significantly enhances the anti-electricity theft capability of the electric meter by arranging a telescopic component and a docking component; the introduction of the telescopic component enables the docking component to automatically separate when an abnormal number of wires is detected, effectively preventing electricity thieves from stealing electricity by short-circuiting the inlet and outlet ends of the live wire; the detection unit inside the docking component can accurately identify the number of wires, and once excess wires are detected, the action of the telescopic component is triggered to separate the docking component, thereby blocking the electricity theft path and reducing the economic losses caused by the electricity theft.

[0020] 2. The present invention realizes real-time monitoring and rapid response to the circuit overload state by setting a disconnect device; the temperature sensing component in the disconnect device can sense the heat energy accumulated in the wires and connections due to overload, and extend accordingly, and push the docking parts to separate, drive the conductive arm to deflect to cut off the electrical connection with the live wire, and lock the disconnect state through the cooperation of the card slot and the card block, which not only quickly cuts off the overload circuit and prevents the occurrence of safety accidents such as damage to the electric meter and fire, but also provides clear instructions for subsequent maintenance and processing by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a structural schematic diagram of the electric meter body of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the terminal mounting portion of the present invention; Figure 4 It is a structural schematic diagram of the fire line part of the present invention; Figure 5 It is a schematic diagram of the explosion structure of the firing line portion of the present invention; Figure 6 It is a structural schematic diagram of the docking component of the present invention in a docking state; Figure 7 This is a schematic diagram of the structure in which the short-circuit wire of the present invention is installed on the clamping bolt; Figure 8 It is a structural schematic diagram of the docking components of the present invention in a separated state; Fig. 9 It is a structural schematic diagram of the disconnecting device of the present invention; Fig.10 It is a connection schematic diagram of the wire of the present invention.

[0022] The accompanying drawings are marked as follows: 1. Meter body; 2. Capping; 3. Terminal installation part; 4. Fire line unit; 401. Telescopic component; 4011. Fixed block; 4012. Movable block; 402. Docking component; 4021. First docking module; 4022. Second docking module; 4023. Clamping bolt; 5. Neutral line; 6. Separator block; 7. Detection unit; 701. Conductive rod; 702. Deflection slot; 703. Conductive arm; 8. disconnect device; 801. mounting slot; 802. temperature sensing element; 803. movable plate; 804. connecting element; 9. Socket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1 Reference Figures 1 to 10 As shown, the present invention provides a multifunctional smart electric meter, including an electric meter body 1; and also includes a terminal mounting portion 3, located at the bottom of the electric meter body 1, for assembling connection terminals.

[0025] The live wire part 4 and the neutral wire part 5 are both arranged inside the terminal mounting part 3 and separated by a partition block 6 for connecting the wires entering and leaving the meter body 1. The partition block 6 is fixedly connected to the terminal mounting part 3.

[0026] Reference Figure 1 As shown, a cover 2 is provided on the top of the terminal mounting portion 3, and the cover 2 is connected to the partition block 6 through a bolt assembly.

[0027] Reference Figure 1 As shown, the outer side of the terminal installation part 3 is provided with an array of sockets 9, and the sockets 9 correspond to the wires entering and exiting the live wire part 4 and the neutral wire part 5. The socket 9 only allows one wire to enter.

[0028] It should be noted that the electric meter body 1 in this embodiment is a single-phase digital display electric meter.

[0029] When in use, the live wire part 4 and the neutral wire part 5 of the meter include input and output terminals respectively, and four wires are connected thereto, corresponding to the live wire in, live wire out, neutral wire in and neutral wire out respectively. Fig.10 As shown. During operation, after the wire is connected to the live wire part 4 and the neutral wire part 5, the electric energy enters the meter through the live wire and passes through the current coil, which is used to measure the current intensity passing through the meter. When the current passes through the current coil, a magnetic field is generated. The interaction between this magnetic field and the magnetic field inside the meter prompts the counting mechanism or sensor inside the meter to count or convert.

[0030] At the same time, the live wire is also connected to the voltage coil to measure the voltage in the circuit. The voltage coil is connected to both ends of the power supply. When there is voltage in the circuit, current will be generated in the voltage coil, thereby forming a corresponding magnetic field or electrical signal. The meter determines the voltage value in the circuit by measuring the size of these magnetic fields or electrical signals.

[0031] Based on the measured current and voltage values, the meter generates a pulse signal that is proportional to the energy consumption. The number and frequency of the signal are directly related to the amount of energy used in the circuit. The counting mechanism or sensor inside the meter counts these pulse signals and converts them into digital signals, which are then accumulated and calculated. Finally, the meter displays the accumulated energy usage in kilowatt-hours (kWh) or degrees.

[0032] To ensure accurate measurement, the meter takes all relevant parameters into consideration when measuring current, voltage and calculating energy pulses. The meter is equipped with calibration and compensation circuits to reduce errors and improve measurement accuracy. After the entire measurement process is completed, the meter will present the final energy usage in a digital form, which is convenient for users to manage and supervise electricity consumption.

[0033] Embodiment 2 Although the above embodiment can realize the detection of electric energy, in actual application, electricity thieves often remove the cover 2 and short-circuit the live wire inlet and outlet to divert the electric energy, causing the meter to run slowly or even stop, causing losses to the power supply organization. In addition, since the cover 2 blocks the short-circuit, this kind of electricity theft is more concealed and difficult to detect. In view of this, improvements are made on the basis of embodiment 1, and the improved technical solution is as follows.

[0034] Reference Figures 1 to 10 As shown, the live wire portion 4 includes a telescopic component 401 arranged inside the terminal mounting portion 3, and both sides of the telescopic component 401 are provided with docking components 402 that can be separated up and down, and the docking components 402 are provided with detection units 7 for detecting the number of wires.

[0035] When the detection unit 7 detects that the number of wires on the docking component 402 exceeds a preset number, the telescopic component 401 performs an extension action, thereby realizing the upper and lower separation operation of the docking component 402.

[0036] Reference Figures 4 to 9 As shown, the telescopic component 401 includes a fixing block 4011 , which is arranged inside the terminal mounting portion 3 and serves to separate the two groups of docking components 402 .

[0037] The fixing block 4011 is made of insulating material, which separates the two groups of docking components 402 while preventing the two groups of docking components 402 from being electrically connected through the fixing block 4011 .

[0038] The movable block 4012 is located above the fixed block 4011 , and a pushing member is provided between the two. The pushing member is connected to a power device inside the electric meter body 1 .

[0039] The movable block 4012 is made of insulating material, which can separate the two groups of docking components 402 while preventing the two groups of docking components 402 from being electrically connected through the movable block 4012 .

[0040] The pusher includes an electric push rod, a fixed end of the pusher is arranged inside the fixed block 4011, an output end of the pusher is connected to the movable block 4012, and a main body of the pusher is made of insulating material.

[0041] It should be noted that the power device mentioned in this embodiment is an independent power supply arranged inside the meter body 1 and a signal processing device arranged inside the meter body 1 (the independent power supply and the signal processing device are conventional settings in the meter and will not be described in detail here). When the detection unit 7 detects the electricity theft, the signal processing device sends a signal to the pusher, and the pusher drives the movable block 4012 to move upward, thereby realizing the upper and lower separation operation of the docking component 402.

[0042] Reference Figures 4 to 9 As shown, the docking component 402 includes a first docking module 4021, which is arranged inside the terminal mounting portion 3 and is used to receive the wire; the first docking module 4021 is an insulating material.

[0043] The second docking module 4022 is arranged above the first docking module 4021, and both of the opposite sides thereof are provided with placement grooves; the wires entering the live wire part 4 are all located inside the placement grooves.

[0044] The clamping bolt 4023 is disposed on the top of the second docking module 4022. When the first docking module 4021 and the second docking module 4022 are in a docking state, the wire is fixed to the placement groove by rotating the clamping bolt 4023.

[0045] Specifically, the second docking modules 4022 located on both sides of the movable block 4012 are fixedly connected to the movable block 4012 itself.

[0046] Reference Figures 5 to 9 As shown, the detection unit 7 includes a conductive rod 701 symmetrically arranged on both sides of the first docking module 4021 for transmitting the current of the conductor.

[0047] The deflection slots 702 are arranged in an array on both sides of the first docking module 4021 .

[0048] The conductive arms 703 are distributed in an array on the outer wall of the conductive rod 701 and are rotatably connected to the conductive rod 701 . The conductive arms 703 can be deflected inside the deflection slot 702 .

[0049] The conductive arm 703 is hinged to the deflection slot 702 via a torsion spring. An angle sensor is provided at the connection between the torsion spring and the deflection slot 702. The deflection angle of the conductive arm 703 can be obtained by detecting the value of the angle sensor.

[0050] Specifically, the conductive arms 703 on both sides of the first docking module 4021 have different lengths. The conductive arm 703 on one side of the first docking module 4021 contacts the clamping bolt 4023 , while the conductive arm 703 on the other side does not contact the clamping bolt 4023 .

[0051] The longer conductive arm 703 is in contact with the clamping bolt 4023 , while the shorter conductive arm 703 is not in contact with the clamping bolt 4023 .

[0052] Specifically, the end and side of the conductive arm 703 are both arranged in a curved surface; the end of the clamping bolt 4023 is arranged in a wedge shape.

[0053] by Figure 6 As shown in the example, each docking component 402 is equipped with two sets of conductive arms 703: the longer set is set as arm A, and the shorter set is set as arm B. A control system is integrated inside the meter body 1, and the core function of the system is to regulate the actions of all electrical components.

[0054] In the initial state, the telescopic assembly remains in a retracted state, and at this time, the first docking module 4021 and the second docking module 4022 are in a mutually docked position.

[0055] When in use, the wire enters the placement groove between the first docking module 4021 and the second docking module 4022 through the socket 9. As the wire moves in the placement groove, the wire is squeezed and contacted with the side of the B arm, causing the B arm to deflect. This deflection process is also affected by the torsion spring, so that the B arm squeezes the wire synchronously.

[0056] After the wire enters the placement slot, the control system continuously monitors the value of the angle sensor as a basis for determining whether the wire has been correctly inserted.

[0057] In this embodiment, two B arms are provided on the conductive rod 701. If the control system detects that the angle sensor value associated with one of the B arms is lower than a preset threshold, it indicates that the insertion length of the wire in the placement slot is insufficient. At this time, the control system will issue a warning on the display interface of the meter body 1, prompting the operator to continue to insert the wire into the placement slot to prevent only one clamping bolt 4023 from applying pressure when the clamping bolt 4023 is subsequently used to fix the wire, which may cause poor contact between the wire and the live wire part 4.

[0058] After the wire is inserted into place, the operator rotates the clamping bolt 4023 to make its bottom closely contact with the wire, thereby fixing the wire to the placement slot. The bottom of the clamping bolt 4023 is designed to be conical, and the A arm is in contact with the bottom of the clamping bolt 4023. As the clamping bolt 4023 continues to be screwed in, the A arm is affected by the clamping bolt 4023 and deflects synchronously until it reaches Figure 6The state shown indicates that the installation of the live wire on the meter body 1 is completed.

[0059] It is worth noting that when the docking component 402 is in the docking state, since the pushing member is in a retracted state, during the screwing process of the clamping bolt 4023, it is restricted by the pushing member and the clamping bolt 4023 will not drive the second docking module 4022 to move upward.

[0060] When users attempt to steal electricity in secret, they usually install a short-circuit wire in the live wire portion 4 inside the cover 2, and the two ends of the short-circuit wire are connected to the "live wire in" and "live wire out" respectively. Figure 7 and Fig.10 As shown. During the electricity theft process, the clamping bolts 4023 are used to fix the two ends of the short-circuit wire. At this time, when the meter is in operation, the control system determines whether there is electricity theft by detecting the values ​​of the angle sensors located on both sides of the movable block 4012 and connected to the A arm.

[0061] like Figure 7 As shown, if the control system detects that the values ​​of these angle sensors are all lower than the preset threshold, it indicates that there is electricity theft. That is, when the user steals electricity, part of the clamping bolt 4023 is used to fix the short-circuit wire, causing the wedge-shaped part of the clamping bolt 4023 to move upward, thereby reducing the value of the angle sensor connected to the A-arm.

[0062] like Figure 8 As shown, once the control system detects the theft of electricity, it will send a signal to the pusher through the signal processing device to drive the movable block 4012 to move up, and the movable block 4012 drives the second docking module 4022 to move up, so that the docking component 402 is in a separated state. After the docking component 402 is separated, the control system sends an electricity theft alarm to the power company so that subsequent staff can conduct on-site investigation and evidence collection.

[0063] At the same time, during the separation of the docking component 402, the second docking module 4022 synchronously drives the clamping bolt 4023 to move upward, causing the A arm to be out of contact with the clamping bolt 4023. Under the elastic restoring force of the torsion spring, the A arm deflects in the opposite direction and finally forms a squeeze contact with the wire. At this time, the wire is fixed by the A arm and the B arm, and the current flows into the inside of the electric meter body 1 through the conductive arm 703 and the conductive rod 701. Since the second docking module 4022 is in a separated state from the first docking module 4021, the short-circuit wire cannot shunt the current in the wire, thereby effectively preventing the occurrence of electricity theft.

[0064] Embodiment 3 Although the above embodiments can effectively prevent electricity theft, in actual application, when multiple high-power devices are connected to the same power socket at the same time, the power load will increase sharply, and the current may exceed the rated load capacity of the meter. In this case, the coil and resistor inside the meter will generate a lot of heat due to the excessive current, which may cause the meter to be damaged or even burned. More seriously, the overload current may also cause a short circuit in the line, thereby causing safety accidents such as fire. In view of this, improvements are made on the basis of Example 2, and the improved technical solution is as follows.

[0065] Reference Figures 4 to 9 As shown, a disconnection device 8 is provided at the bottom of the first docking module 4021 , and the disconnection device 8 includes a temperature sensing component 802 . A mounting groove 801 is provided at the bottom of the first docking module 4021 , and a temperature sensing component 802 is provided inside the mounting groove 801 .

[0066] The temperature sensing element 802 is a component that is elongated when heated, and specifically can be an air bag, a memory alloy, etc. Components that are elongated when heated belong to the prior art and will not be described in detail here.

[0067] The movable disk 803 is arranged inside the installation groove 801 and fixedly connected to the temperature sensing member 802 . A clamping groove is arranged on the outer side of the movable disk 803 , and the clamping groove is clamped with an internal clamping block arranged in the installation groove 801 .

[0068] The connector 804 is symmetrically arranged on the top of the movable disk 803, and one end of the connector 804 away from the movable disk 803 is respectively connected to the corresponding conductive arms 703. The connector 804 includes a guide wire, which is used to drive the conductive arm 703 to deflect to the side away from the wire.

[0069] In the initial state, the engaging groove provided on the outer side of the movable disk 803 and the engaging block inside the mounting groove 801 are in a non-connected state.

[0070] When the current flowing through the wire exceeds its designed rated capacity, an overload phenomenon will occur. In the overload state, the internal resistance of the wire increases. According to Joule's law, the current flowing through this increased resistance will generate significant heat energy accumulation. In addition, there is usually contact resistance at the connection between the wire and the meter. In the case of overload, the increase in current intensity further exacerbates the heat energy generation on the contact resistance.

[0071] During this process, the temperature sensing component 802 deployed at the bottom of the first docking module 4021 is heated and stretched. During the process of the temperature sensing component 802 being heated and stretched, the control system sends a signal to the pushing component through the signal processing device, driving the movable block 4012 to move upward, and the movable block 4012 drives the second docking module 4022 to move upward, so that the docking component 402 is in a separated state.

[0072] During the extension of the temperature sensing element 802, the movable disk 803 is synchronously driven to move downward. During the downward movement of the movable disk 803, the conductive arm 703 is driven to deflect to the side away from the wire through the connecting element 804 until the conductive arm 703 is completely out of physical contact with the wire. This series of actions can separate the docking component 402, and the electrical connection between the conductive arm 703 and the live wire is cut off.

[0073] During the downward movement of the movable disk 803, the locking groove on the outside of the movable disk 803 gradually locks with the locking block. When the locking groove and the locking block are locked, the movable disk 803 is fixed inside the installation groove 801. At this time, the self-recovery force of the temperature sensing component 802 cannot release the locking state between the locking groove and the locking block, and subsequent recovery processing is required by subsequent staff.

[0074] It should be noted that the live wire, as the path carrying the main current, is essential for the normal operation of the circuit. It forms a closed loop through the electrical load to achieve energy transmission and conversion. Therefore, when the current level in the circuit exceeds the preset safety threshold, timely cutting off the live wire can quickly and effectively interrupt the power supply of the entire circuit, thereby avoiding potential equipment damage and safety accidents, especially fire risks.

[0075] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multifunctional smart electric meter, comprising an electric meter body (1), characterized in that: A terminal mounting portion (3) is located at the bottom of the electric meter body (1) and is used for assembling connection terminals; The live wire part (4) and the neutral wire part (5) are both arranged inside the terminal mounting part (3) and separated by a partition block (6) for connecting the wires entering and leaving the electric meter body (1); The live wire portion (4) comprises a telescopic component (401) arranged inside the terminal mounting portion (3), both sides of the telescopic component (401) are provided with docking components (402) that can be separated up and down, and the docking components (402) are provided with detection units (7) for detecting the number of wires; When the detection unit (7) detects that the number of wires on the docking component (402) exceeds a preset number, the telescopic component (401) performs an elongation action, thereby achieving an upper and lower separation operation of the docking component (402).

2. The multifunctional smart meter according to claim 1, characterized in that: The telescopic component (401) comprises: A fixing block (4011) is arranged inside the terminal mounting portion (3) and serves to separate the two groups of docking components (402); The movable block (4012) is located above the fixed block (4011), and a pushing member is provided between the two, wherein the pushing member is connected to a power device provided inside the electric meter body (1).

3. The multifunctional smart meter according to claim 2, characterized in that: The docking component (402) comprises: A first docking module (4021) is arranged inside the terminal mounting portion (3) and is used to receive a wire; The second docking module (4022) is arranged above the first docking module (4021), and both opposite sides of the first docking module (4021) are provided with a placement groove; A clamping bolt (4023) is arranged on the top of the second docking module (4022). When the first docking module (4021) and the second docking module (4022) are in a docking state, the clamping bolt (4023) is rotated to fix the wire to the placement groove.

4. The multifunctional smart meter according to claim 3, characterized in that: The second docking modules (4022) located on both sides of the movable block (4012) are fixedly connected to the movable block (4012) itself.

5. The multifunctional smart meter according to claim 3, characterized in that: The detection unit (7) comprises: Conductive rods (701) are symmetrically arranged on both sides of the first docking module (4021) and are used to transmit the current of the conductor; Deflection grooves (702), whose arrays are distributed on both sides of the first docking module (4021); The conductive arms (703) are distributed in an array on the outer wall of the conductive rod (701) and are rotatably connected to the conductive rod (701), and are capable of deflecting inside the deflection slot (702).

6. The multifunctional smart meter according to claim 5, characterized in that: The conductive arms (703) on both sides of the first docking module (4021) have different lengths; the conductive arm (703) on one side of the first docking module (4021) contacts the clamping bolt (4023), while the conductive arm (703) on the other side does not contact the clamping bolt (4023).

7. The multifunctional smart meter according to claim 6, characterized in that: The end and side surfaces of the conductive arm (703) are both arranged in a curved surface; the end of the clamping bolt (4023) is arranged in a wedge shape.

8. The multifunctional smart electric meter according to claim 6, characterized in that: A disconnecting device (8) is provided at the bottom of the first docking module (4021), and the disconnecting device (8) comprises: A temperature sensing component (802), wherein a mounting groove (801) is provided at the bottom of the first docking module (4021), and a temperature sensing component (802) is provided inside the mounting groove (801); A movable disk (803) is arranged inside the installation groove (801) and is fixedly connected to the temperature sensing element (802); a clamping groove is arranged on the outer side of the movable disk (803), and the clamping groove is clamped with an internal clamping block arranged in the installation groove (801); The connecting member (804) is symmetrically arranged on the top of the movable disk (803), and one end of the connecting member (804) away from the movable disk (803) is respectively connected to the corresponding conductive arms (703).

9. The multifunctional smart meter according to claim 1, characterized in that: A cover (2) is provided on the top of the terminal mounting portion (3), and the cover (2) is connected to the partition block (6) via a bolt assembly.

10. The multifunctional smart meter according to claim 1, characterized in that: The outer side of the terminal mounting portion (3) is provided with sockets (9) distributed in an array, and the sockets (9) respectively correspond to the wires entering and exiting the live wire portion (4) and the neutral wire portion (5).

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