Three-phase intelligent module electric energy meter

By introducing locking components and positioning mechanisms into the three-phase energy meter, the problem of abnormal wire connection caused by power outage protector failure is solved, realizing automatic circuit breaking in case of circuit abnormality, preventing equipment damage and electrical fires, and providing dual protection.

CN223501060UActive Publication Date: 2025-10-31ZHEJIANG JUXIN MICROELECTRONICS CO LTD
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Patent Information

Application Number
CN202422843763.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-10-31
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

The power outage protection devices of existing three-phase electricity meters are prone to failure, which may cause the wires to remain connected to the meter when the current, voltage or load is abnormal, potentially leading to equipment damage or electrical fire.

Method used

A three-phase intelligent modular energy meter was designed, which includes a locking component and a positioning mechanism. The locking component achieves a tight connection by pressing the wire with a pressure block. When the positioning mechanism detects a circuit abnormality, it moves the wire away from the energy meter body. It works in conjunction with a miniature push rod and a power failure protector for dual protection.

Benefits of technology

It enables timely disconnection of power lines in case of circuit malfunction, preventing equipment damage or electrical fires, and provides dual protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electric energy meters, in particular to a three-phase intelligent module electric energy meter. In order to solve the problems that a power-off protector has the probability of failure, so that a wire is still connected to an electric meter after current, voltage or load is abnormal, and equipment damage or electrical fire occurs, the following technical scheme is provided: the power-off protector comprises an electric energy meter body which is provided with a plurality of groups of wiring grooves; a conductor of an electric wire is inserted into the wiring groove; the locking assembly is arranged at the position of the wiring groove and is used for extruding and fixing an electric wire to realize electrical connection; and the positioning mechanism is mounted at one end, close to the electric wire, of the electric energy meter body and is used for positioning the connecting end of the electric wire. According to the utility model, the wire can be loosened and can be far away from the electric energy meter body when the circuit is detected to be abnormal, thereby realizing circuit breaking and effectively preventing equipment damage or electrical fire.
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Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, and in particular to a three-phase intelligent module electricity meter. Background Technology

[0002] A three-phase energy meter is an instrument used to measure and monitor the consumption of three-phase AC power. It is widely used in industrial, commercial, and some large residential areas, primarily for monitoring and recording the energy consumption of three-phase power supplies. A three-phase energy meter can simultaneously measure three-phase current and voltage and calculate the consumed energy based on these two parameters. Modern digital energy meters typically use microprocessors for data acquisition, calculation, and processing. Automatic power-off functionality usually relies on power-off protection devices in the power distribution system. When current, voltage, or load abnormalities occur, the power supply is automatically disconnected to prevent equipment damage or electrical fires. However, power-off protection devices can malfunction, resulting in wires remaining connected to the meter even after abnormal current, voltage, or load conditions, potentially causing equipment damage or electrical fires. Therefore, this invention proposes a three-phase intelligent modular energy meter. Utility Model Content

[0003] The purpose of this invention is to address the problem in the prior art that power outage protection devices may malfunction, causing abnormal current, voltage, or load, resulting in the wires remaining connected to the meter and potentially causing equipment damage or electrical fires. The invention proposes a three-phase intelligent modular energy meter.

[0004] The technical solution of this utility model is as follows: A three-phase intelligent modular energy meter includes an energy meter body with multiple sets of wiring slots on the energy meter body, into which the conductors of wires are inserted; a locking component located at the wiring slot, which is used to press and fix the wires to achieve electrical connection; a positioning mechanism installed on the energy meter body near one end of the wire, which positions the connection end of the wire and, in the event of a circuit abnormality, moves the wire away from the energy meter body; and two sets of miniature push rods disposed in the energy meter body, which are electrically connected to a current and power detection module disposed in the energy meter body, for timely response when a circuit abnormality is detected.

[0005] Optionally, the locking component includes a mounting frame slidably connected to the side of the electricity meter body. The mounting frame has a "U"-shaped structure. Multiple sets of first screws are threaded onto the mounting frame. One end of each set of first screws is rotatably connected to a synchronization plate. Multiple sets of pressure blocks are fixedly connected to the side of the synchronization plate away from the first screws. The positions of the multiple sets of pressure blocks correspond to the positions of multiple sets of wiring slots. The pressure blocks are slidably connected in the wiring slots.

[0006] Optionally, the positioning mechanism includes two sets of guide plates slidably connected to the bottom of the electricity meter body. The guide plates are L-shaped. A first clamping plate is fixedly connected between the two sets of guide plates. Multiple sets of wires are arranged on one side of the first clamping plate. A second clamping plate is arranged on the side of the wires away from the first clamping plate. The second clamping plate is fixedly connected to the side of the first clamping plate by a second screw to clamp and fix the wires.

[0007] Optionally, a first spring is provided at the top of the guide plate, and a limiting block for limiting the guide plate is provided on the inner side of the guide plate, the limiting block being inclined.

[0008] Optionally, a movable cylinder is fixedly connected to the side of the limiting block near the mounting frame. The movable cylinder is slidably connected to the energy meter body. A sliding block is slidably connected in the movable cylinder. A connecting rod is fixedly connected between the sliding block and the mounting frame. The connecting rod is slidably connected to the movable cylinder.

[0009] Optionally, the movable cylinder is further provided with a second spring, which is located on the side of the sliding block away from the connecting rod.

[0010] Optionally, the output end of the miniature push rod is fixedly connected to a connecting plate, and both sets of connecting plates are fixedly connected to the mounting frame.

[0011] In summary, this application includes at least one of the following beneficial technical effects:

[0012] This utility model clamps one end of the wire through a positioning mechanism, and simultaneously, through a locking component, multiple sets of pressure blocks move synchronously to squeeze and fix the conductor part of the wire in the wiring groove position, thereby achieving a tight electrical connection.

[0013] Furthermore, through the setting of the positioning mechanism, the miniature push rod is activated after receiving the abnormal signal from the current and power detection module, which drives the pressure block away from the wire and at the same time drives the limit block to move, causing the first spring to release its elastic force, thereby driving the wire away from the energy meter body and realizing circuit breaking. It works in conjunction with the existing power outage protection device to provide double protection and effectively prevent equipment damage or electrical fires.

[0014] In summary, this utility model can disconnect the wire and move it away from the electricity meter body when a circuit abnormality is detected, thereby breaking the circuit and effectively preventing equipment damage or electrical fires. Attached Figure Description

[0015] Figure 1 A schematic diagram of a three-phase intelligent module energy meter is provided.

[0016] Figure 2 This is a cross-sectional structural diagram of the locking component;

[0017] Figure 3 This is a schematic diagram of the positioning mechanism;

[0018] Figure 4 for Figure 2 Enlarged diagram of point A in the middle.

[0019] Figure label:

[0020] 1. Electricity meter body; 11. Wiring trough;

[0021] 2. Electrical wires;

[0022] 3. Locking component; 31. Mounting frame; 32. First screw; 33. Synchronization plate; 34. Pressure block;

[0023] 4. Positioning mechanism; 41. Guide plate; 42. First clamping plate; 43. Second clamping plate; 44. First spring; 45. Limiting block; 46. Moving cylinder; 47. Sliding block; 48. Connecting rod; 49. Second spring;

[0024] 5. Miniature push rod; 51. Connecting plate. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0026] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0027] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example

[0031] like Figures 1 to 4 As shown, the present invention proposes a three-phase intelligent module energy meter, including an energy meter body 1, on which multiple sets of wiring slots 11 are provided, and the conductors of the wires 2 are inserted into the wiring slots 11.

[0032] Specifically, the aforementioned electricity meter includes a locking component 3 located at the wiring slot 11. The locking component 3 is used to press and fix the wire 2 to achieve electrical connection. The locking component 3 includes a mounting frame 31 slidably connected to the side of the electricity meter body 1. The mounting frame 31 has a "U"-shaped structure and slides smoothly on the side of the electricity meter body 1. Two sets of first screws 32 are threadedly connected to the mounting frame 31. When the first screws 32 rotate, they move along their own length direction. One end of the two sets of first screws 32 is rotatably connected to a synchronization plate 33. When the first screws 32 move, they drive the synchronization plate 33 to move synchronously. Multiple sets of pressure blocks 34 are fixedly connected to the side of the synchronization plate 33 away from the first screws 32. When the synchronization plate 33 moves, it drives the multiple sets of pressure blocks 34 to move synchronously. The positions of multiple pressure blocks 34 correspond to the positions of multiple wiring slots 11. The pressure blocks 34 are slidably connected in the wiring slots 11. When the synchronization plate 33 approaches the energy meter body 1, it drives the pressure blocks 34 to squeeze the wire 2, so that the wire 2 is tightly pressed in the wiring slots 11, realizing the electrical connection between the wire 2 and the energy meter body 1, and ensuring the normal operation of the energy meter.

[0033] Furthermore, the aforementioned electricity meter also includes a positioning mechanism 4 installed on the end of the electricity meter body 1 near the wire 2. The positioning mechanism 4 positions the connection end of the wire 2 and is also used to move the wire 2 away from the electricity meter body 1 when a circuit malfunction occurs. The positioning mechanism 4 includes two sets of guide plates 41 slidably connected to the bottom of the electricity meter body 1. The guide plates 41 are L-shaped, and a first clamping plate 42 is fixedly connected between the two sets of guide plates 41. The first clamping plate 42 moves smoothly under the limiting action of the guide plates 41, and the L-shaped design of the guide plates 41 prevents the first clamping plate 42 from moving too far. Multiple wires 2 are all arranged on one side of the first clamping plate 42. A second clamping plate 43 is arranged on the side of the wire 2 away from the first clamping plate 42. The second clamping plate 43 is fixedly connected to the side of the first clamping plate 42 by a second screw to clamp and fix the wire 2, so that when the first clamping plate 42 and the second clamping plate 43 move, they drive the wire 2 to move synchronously. A first spring 44 is provided at the top of the guide plate 41, and a limiting block 45 is provided on the inner side of the guide plate 41 to limit its movement. When the limiting block 45 moves, it releases its limiting force, and the first spring 44 releases its elastic force, causing the guide plate 41 to move, thereby moving the wire 2 away from the energy meter body 1. The limiting block 45 is inclined, allowing the guide plate 41 to pass through its position when moving upwards. A movable cylinder 46 is fixedly connected to the side of the limiting block 45 near the mounting frame 31. The movable cylinder 46 is slidably connected to the energy meter body 1, and its movement causes the limiting block 45 to move synchronously. A sliding block 47 is slidably connected to the movable cylinder 46, and a connecting rod 48 is fixedly connected between the sliding block 47 and the mounting frame 31. When the mounting frame 31 moves away from the energy meter body 1, the connecting rod 48 moves the sliding block 47, thereby moving the movable cylinder 46 and the limiting block 45. The connecting rod 48 is slidably connected to the moving cylinder 46. The moving cylinder 46 is also provided with a second spring 49. The second spring 49 is located on the side of the sliding block 47 away from the connecting rod 48. The second spring 49 is used to release the elastic force to facilitate the reset of the limiting block 45, so as to limit the guide plate 41 through the limiting block 45.

[0034] Furthermore, the aforementioned electricity meter also includes two sets of miniature push rods 5 disposed within the electricity meter body 1. The miniature push rods 5 are electrically connected to the current and power detection modules disposed within the electricity meter body 1, and are used to react promptly when a circuit abnormality is detected. A connecting plate 51 is fixedly connected to the output end of each miniature push rod 5. Both sets of connecting plates 51 are fixedly connected to the mounting frame 31. After activation, the miniature push rods 5 drive the mounting frame 31 to move, while the connecting plates 51 limit the movement to prevent excessive distance. Both sets of miniature push rods 5 are powered by batteries.

[0035] In this embodiment, when a circuit fault occurs, the current and power detection module detects the abnormality and sends a signal to activate the miniature push rod 5. After the miniature push rod 5 is activated, it drives the mounting frame 31 to move, and at the same time drives the synchronization plate 33 away from the wiring slot 11. The synchronization plate 33 drives the pressure block 34 away from the wire 2. Meanwhile, when the mounting frame 31 moves, it drives the sliding block 47 to move through the connecting rod 48, thereby driving the moving cylinder 46 to move synchronously. At this time, the limiting block 45 moves and no longer limits the guide plate 41. At this time, the first spring 44 releases its elastic force, causing the guide plate 41 to move downward, and at the same time, it drives the first clamping plate 42 to move downward, thereby causing the wire 2 clamped between the first clamping plate 42 and the second clamping plate 43 to move downward. At this time, the wire 2 moves away from the energy meter body 1, realizing the circuit breaking and effectively preventing equipment damage or electrical fire.

[0036] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A three-phase intelligent modular energy meter, characterized in that, include: The meter body (1) has multiple sets of wiring slots (11) on it, and the conductor of the wire (2) is inserted into the wiring slot (11); A locking component (3) is provided at the location of the wiring groove (11), the locking component (3) is used to squeeze and fix the wire (2) to achieve electrical connection; The positioning mechanism (4) is installed on the end of the power meter body (1) near the wire (2). The positioning mechanism (4) positions the connection end of the wire (2). At the same time, the positioning mechanism (4) is used to drive the wire (2) away from the power meter body (1) when the circuit is abnormal. Two sets of miniature push rods (5) are installed in the main body (1) of the energy meter. The miniature push rods (5) are electrically connected to the current and power detection module installed in the main body (1) of the energy meter, and are used to react in time when a circuit abnormality is detected.

2. A three-phase intelligent module energy meter according to claim 1, characterized in that, The locking component (3) includes a mounting frame (31) slidably connected to the side of the electricity meter body (1). The mounting frame (31) has a "U" shaped structure. Multiple sets of first screws (32) are threaded onto the mounting frame (31). One end of the multiple sets of first screws (32) is rotatably connected to a synchronization plate (33). Multiple sets of pressure blocks (34) are fixedly connected to the side of the synchronization plate (33) away from the first screws (32). The positions of the multiple sets of pressure blocks (34) correspond to the positions of the multiple sets of wiring slots (11). The pressure blocks (34) are slidably connected in the wiring slots (11).

3. A three-phase intelligent module energy meter according to claim 2, characterized in that, The positioning mechanism (4) includes two sets of guide plates (41) slidably connected to the bottom of the electricity meter body (1). The guide plates (41) are L-shaped. A first clamping plate (42) is fixedly connected between the two sets of guide plates (41). Multiple sets of wires (2) are all arranged on one side of the first clamping plate (42). A second clamping plate (43) is arranged on the side of the wires (2) away from the first clamping plate (42). The second clamping plate (43) is fixedly connected to the side of the first clamping plate (42) by a second screw to clamp and fix the wires (2).

4. A three-phase intelligent module energy meter according to claim 3, characterized in that, The top of the guide plate (41) is provided with a first spring (44), and the inner side of the guide plate (41) is provided with a limiting block (45) for limiting it. The limiting block (45) is inclined.

5. A three-phase intelligent module energy meter according to claim 4, characterized in that, The limiting block (45) is fixedly connected to a movable cylinder (46) on the side near the mounting frame (31). The movable cylinder (46) is slidably connected to the energy meter body (1). A sliding block (47) is slidably connected in the movable cylinder (46). A connecting rod (48) is fixedly connected between the sliding block (47) and the mounting frame (31). The connecting rod (48) is slidably connected to the movable cylinder (46).

6. A three-phase intelligent module energy meter according to claim 5, characterized in that, The movable cylinder (46) is also provided with a second spring (49), which is located on the side of the sliding block (47) away from the connecting rod (48).

7. A three-phase intelligent module energy meter according to claim 6, characterized in that, The output end of the micro push rod (5) is fixedly connected to a connecting plate (51), and both sets of the connecting plates (51) are fixedly connected to the mounting frame (31).