Electric energy meter facilitating wire insertion

Abstract

The application relates to the technical field of electric power metering equipment, in particular to an electric energy meter facilitating wire insertion, which comprises a shell, a measuring module and a wire connecting seat, the measuring module is fixedly installed in the inner cavity of the shell, the wire connecting seat is fixed at the input end and the output end of the measuring module, and the wire connecting seat is electrically connected with the measuring module, an insertion slot for inserting external wires is formed in the wire connecting seat, the wire connecting seat is provided with an anti-loosening assembly for electrically connecting the external wires with the wire connecting seat at the insertion slot, and the shell is provided with a wire arranging and fixing assembly for arranging and fixing the inserted external wires at the insertion slot, the external wires can be directly inserted into the insertion slot to realize electric connection, tools such as screwdrivers are not needed, the wiring operation process is greatly simplified, the labor intensity of installation and maintenance is reduced, the work efficiency is improved, and the inserted multiple external wires are arranged and fixed.

Description

Technical Field

[0001] This invention relates to the field of power metering equipment technology, specifically to an energy meter that is easy to connect wires to. Background Technology

[0002] Electricity meters are core instruments in power systems used to measure electrical energy consumption, and are widely used in various electricity consumption scenarios such as industrial production and residential life. The normal operation of an electricity meter depends on a reliable connection between the external wiring and the internal measurement module. Currently, most mainstream electricity meter wiring methods on the market use terminals with screws for tightening. During installation, installers need to first strip the insulation from the ends of the wires, insert the exposed copper core into the wiring hole, and then tighten the screw with a screwdriver. The top of the screw presses the wire, thus achieving electrical connection and mechanical fixation. However, this traditional screw-pressing method is inconvenient in practice. Tightening the screws requires appropriate tools, and the limited space within the confined space of the electricity meter box makes construction inconvenient and inefficient, especially in scenarios involving the installation or replacement of large numbers of electricity meters, significantly reducing work efficiency. Summary of the Invention

[0003] In view of the shortcomings of the existing technology and to overcome its defects, the present invention aims to provide an energy meter that is easy to connect wires, thereby solving the problem of low wire connection efficiency in traditional energy meters.

[0004] The technical solution is an energy meter that facilitates wire insertion, including a housing, a measuring module, and a wire connector. The measuring module is fixedly installed inside the housing cavity, and the wire connector is fixed at the input and output ends of the measuring module and electrically connected to the measuring module. The wire connector has a insertion slot for inserting an external wire, and the wire connector has an anti-loosening component at the insertion slot for electrical contact between the external wire and the wire connector. The housing has a cable fixing component at the insertion slot for organizing and fixing the inserted external wire.

[0005] Preferably, each of the anti-loosening components includes a slot formed on the side wall of the insertion slot, a slidably connected block in the slot, and a first elastic element made of elastic material installed between the block and the bottom of the slot.

[0006] Preferably, the cable fixing assembly includes a mounting base fixedly connected to the housing, the mounting base having through holes for external conductors to pass through, each through hole corresponding to a plug slot, and the mounting base having a slidably connected plate at each through hole for restricting the movement of the external conductors away from the plug slot.

[0007] Preferably, the end of the card block furthest from the first elastic element has a spherical head structure.

[0008] Preferably, each of the through holes has a conical structure, with the larger end of each through hole adjacent to the insertion slot, and each of the clamping plates has a wedge-shaped structure. One side of each clamping plate cooperates with the inner wall of the through hole to fix the external wire, and the side of each clamping plate away from the external wire is slidably connected to the inner wall of the through hole.

[0009] Preferably, the surfaces of the card plates and through holes that are used to fix the external wires are arranged in parallel, and the surfaces of the card plates and through holes that are used to fix the external wires are friction surfaces, and the side of the card plate away from the external wires and the side of the through hole that is in contact with each other are friction surfaces.

[0010] Preferably, a plurality of guide rods are slidably connected on the mounting base, one end of each guide rod is fixedly connected to the clamping plate, and a baffle is installed at the other end of each guide rod. A second elastic element made of elastic material is installed between each baffle and the mounting base, and the sliding direction of each guide rod relative to the mounting base is parallel to the sliding direction of the adjacent clamping plate relative to the through hole.

[0011] Preferably, the mounting base is made of insulating material, and the through holes are arranged linearly.

[0012] This invention provides an energy meter that facilitates wire connection, and its advantages over existing technologies are as follows:

[0013] 1. This invention provides a plug slot on the wire connector, allowing external wires to be directly inserted into the plug slot for electrical connection without the need for tools such as screwdrivers. This significantly simplifies the wiring process, reduces the labor intensity of installation and maintenance, and improves work efficiency, making it particularly suitable for batch installation scenarios.

[0014] 2. By setting up an anti-loosening component, after the external wire is inserted, the locking block automatically locks the wire under the action of the first elastic element, effectively preventing the wire from loosening or falling off due to vibration and other factors, ensuring tight electrical contact between the external wire and the wire connector, avoiding metering errors and overheating risks caused by poor contact, and improving the operational stability and reliability of the electricity meter.

[0015] 3. The cable fixing component can organize and fix multiple external wires after plugging in, so that the wires are neatly arranged and avoid problems such as tangling and wear. This not only improves the appearance of the electricity meter, but also facilitates subsequent inspection and maintenance, while reducing the risk of wire damage and short circuit. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the housing of the present invention.

[0017] Figure 2 This is a cross-sectional schematic diagram of the anti-loosening component inside the housing of the present invention.

[0018] Figure 3 This is a partially enlarged schematic diagram of point A in the present invention.

[0019] Figure 4 This is a cross-sectional view of the cable fixing component of the present invention.

[0020] Figure 5 This is a schematic diagram of the structure of the housing of the present invention.

[0021] Figure 6 This is a schematic diagram of another embodiment of the present invention.

[0022] Figure 7 This is a cross-sectional view of the cable fixing component in another embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the housing structure according to another embodiment of the present invention.

[0024] In the diagram: 1. Housing, 2. Measuring module, 3. Wire connector, 4. Plug slot, 5. Anti-loosening component, 5.1. Slot, 5.2. Block, 5.3. First elastic element, 6. Cable fixing component, 6.1. Mounting base, 6.2. Through hole, 6.3. Card plate, 6.4. Guide rod, 6.5. Baffle, 6.6. Second elastic element, 7. External wire. Detailed Implementation

[0025] The technical solutions of various embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to 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 the present invention.

[0026] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" 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 invention based on the specific circumstances.

[0027] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0028] Please see Figure 1-5 This invention provides a technical solution: an energy meter that facilitates wire insertion, comprising a housing 1, a measuring module 2, and a wire connector 3. The housing 1 is made of polycarbonate and glass fiber composite material. The measuring module 2 is fixedly installed in the inner cavity of the housing 1 by bolts to realize the function of measuring energy. The measuring module 2 is a device in the prior art. The wire connector 3 is fixed at the input and output ends of the measuring module 2, and the wire connector 3 is electrically connected to the measuring module 2 by wires. The wire connector 3 is bolted inside the housing 1 and is made of copper material to ensure good conductivity.

[0029] The wire connector 3 has a socket 4 for inserting the external wire 7. The number of socket 4 is set according to the number of input and output terminals of the measurement module 2. In this embodiment, six socket 4 are set, corresponding to three input wires and three output wires respectively. The wire connector 3 is provided with an anti-loosening component 5 at the socket 4 for electrical contact between the external wire 7 and the wire connector 3, so as to achieve stable electrical contact between the external wire 7 and the wire connector 3 and prevent loosening and falling off.

[0030] Each anti-loosening component 5 includes a slot 5.1 formed on the side wall of the insertion slot 4. The slot 5.1 is arranged radially along the insertion slot 4, and each insertion slot 4 has one or two slots 5.1 of appropriate quantity. A locking block 5.2 is slidably connected in the slot 5.1. The locking block 5.2 is made of copper material to ensure good conductive contact with the external wire 7. A first elastic element 5.3 made of elastic material is installed between the locking block 5.2 and the bottom of the slot 5.1. The first elastic element 5.3 is a compression spring. The wire connector 3 is provided with a limiting block at the insertion slot 4 to limit the maximum distance between the locking block 5.2 and the bottom of the slot 5.1. The limiting block and the wire connector 3 are an integral structure, so that the first elastic element 5.3 is locked between the bottom of the slot 5.1 and the locking block 5.2. The first elastic element 5.3 is always in a compressed state, providing elastic force to the locking block 5.2 toward the center of the insertion slot 4. The end of the locking block 5.2 furthest from the first elastic element 5.3 has a spherical head structure. The surface of the spherical head structure is polished to reduce the friction when the outer wire 7 is inserted. At the same time, it ensures that the locking block 5.2 and the wire surface are in point contact. Under the action of the first elastic element 5.3, it can accommodate outer wires 7 of different diameters, improving the versatility of the structure.

[0031] During use, at least one locking block 5.2 in the same plug slot 4 is in contact with the copper core of the external conductor 7. When the external conductor 7 is inserted into the plug slot 4, the locking block 5.2 slides into the slot 5.1 under the pressure of the conductor, and the first elastic element 5.3 is further compressed; when the conductor is inserted into place, the locking block 5.2 presses tightly against the surface of the copper core of the external conductor 7 under the elastic force of the first elastic element 5.3, realizing the initial anti-loosening fixation of the external conductor 7, while ensuring that the locking block 5.2 and the external conductor 7 are in full contact, ensuring the stability of the electrical connection.

[0032] The housing 1 has a cable fixing component 6 at the plug-in slot 4 for organizing and fixing the plugged-in external conductors 7. The cable fixing component 6 includes a mounting base 6.1, which is made of insulating material, specifically ABS engineering plastic, which has both insulation and structural strength. It can also be made of the same material as the housing 1. The mounting base 6.1 has through holes 6.2 for the external conductors 7 to pass through. The number of through holes 6.2 corresponds one-to-one with the plug-in slot 4. The through holes 6.2 are arranged linearly, which can arrange multiple external conductors 7 in an orderly manner, avoid the conductors from getting tangled or squeezed, facilitate subsequent operation and maintenance, and improve the overall aesthetics of the electricity meter.

[0033] Mounting base 6.1 is slidably connected to a retaining plate 6.3 at each through hole 6.2 to restrict the movement of the external wire 7 away from the plug slot 4. Through the cooperation of retaining plate 6.3 and through hole 6.2, the inserted external wire 7 is fixed again, further improving the anti-loosening effect.

[0034] Each through-hole 6.2 has a conical structure, with the larger end of the through-hole 6.2 adjacent to the insertion slot 4 and the smaller end away from the insertion slot 4, facilitating the passage of the external conductor 7. Each clamping plate 6.3 has a wedge-shaped structure adapted to the through-hole 6.2. One side of the clamping plate 6.3 engages with the inner wall of the through-hole 6.2 to fix the external conductor 7, while the side of the clamping plate 6.3 away from the external conductor 7 is slidably connected to the inner wall of the through-hole 6.2. The engagement of the conical through-hole 6.2 and the wedge-shaped clamping plate 6.3 allows the clamping plate 6.3 to slide along the inner wall of the through-hole 6.2 toward the smaller end of the through-hole 6.2 after the external conductor 7 is inserted. The clamping force of the clamping plate 6.3 and the inner wall of the through-hole 6.2 on the conductor gradually increases, thereby restricting the movement of the external conductor 7 away from the insertion slot 4. At the same time, the wedge-shaped structure can accommodate external conductors 7 of different diameters, expanding the applicability of the structure.

[0035] The surfaces of the clamping plates 6.3 and through holes 6.2 that are used to fix the outer conductor 7 are arranged parallel to each other, and the surfaces of the clamping plates 6.3 and through holes 6.2 that are used to fix the outer conductor 7 are friction surfaces, specifically formed by knurling, to increase the friction between the clamping plates 6.3 and the conductor. The sides of the clamping plates 6.3 away from the outer conductor 7 and the sides of the through holes 6.2 that are in contact with each other are friction surfaces, formed by knurling, to increase the friction between the clamping plates 6.3 and the through holes 6.2 and prevent the clamping plates 6.3 from loosening. The parallel arrangement of the surfaces ensures that the clamping force of the clamping plates 6.3 and the through holes 6.2 on the conductor is uniform, avoiding damage to the conductor due to uneven force. The friction surfaces can increase the friction between the clamping plates 6.3 and the conductor, and between the clamping plates 6.3 and the through holes 6.2, effectively preventing axial sliding of the conductor and loosening of the clamping plates 6.3, further improving the anti-loosening effect.

[0036] Example 2 Based on the previous embodiment, please refer to Figure 6-8 A plurality of guide rods 6.4 are slidably connected to the mounting base 6.1. A mounting block is bonded to the mounting base 6.1, and the mounting base 6.1 is slidably connected to the guide rods 6.4 via the mounting block. The number of guide rods 6.4 corresponds one-to-one with the clamping plates 6.3. One end of each guide rod 6.4 is bonded to the clamping plate 6.3 via a connecting rod, and the other end of each guide rod 6.4 is bonded to a baffle 6.5. A second elastic element 6.6 made of elastic material is sandwiched between each baffle 6.5 and the mounting block on the mounting base 6.1. The second elastic element 6.6 is a spring, sleeved on the guide rod 6.4. The sliding direction of each guide rod 6.4 relative to the mounting base 6.1 is parallel to the sliding direction of the adjacent clamping plate 6.3 relative to the through hole 6.2. The guide rods 6.4, clamping plates 6.3, connecting rods, mounting blocks, baffles 6.5, etc., are all made of insulating material, the same material as the mounting base 6.1.

[0037] The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. An energy meter that facilitates wire insertion, comprising a housing (1), a measuring module (2), and a wire connector (3), wherein the measuring module (2) is fixedly installed in the inner cavity of the housing (1), and the wire connector (3) is fixed at the input and output ends of the measuring module (2), and the wire connector (3) is electrically connected to the measuring module (2), characterized in that: The wire connector (3) has a socket (4) for inserting an external wire (7). The wire connector (3) has an anti-loosening component (5) at the socket (4) for the external wire (7) to make electrical contact with the wire connector (3). The housing (1) has a cable fixing component (6) at the socket (4) for tidying up and fixing the inserted external wire (7).

2. The energy meter according to claim 1, characterized in that: Each of the anti-loosening components (5) includes a slot (5.1) opened on the side wall of the insertion groove (4), a slot (5.1) is slidably connected to a block (5.2), and a first elastic element (5.3) made of elastic material is installed between the block (5.2) and the bottom of the slot (5.1).

3. The energy meter according to claim 1, characterized in that: The cable fixing assembly (6) includes a mounting base (6.1) fixedly connected to the housing (1). The mounting base (6.1) has through holes (6.2) for the passage of the external conductor (7). Each through hole (6.2) corresponds to a plug slot (4). The mounting base (6.1) is slidably connected at each through hole (6.2) to a clamp (6.3) for restricting the movement of the external conductor (7) away from the plug slot (4).

4. The energy meter according to claim 2, characterized in that: The end of the card block (5.2) away from the first elastic element (5.3) has a spherical head structure.

5. An energy meter for easy wire connection according to claim 3, characterized in that: Each of the through holes (6.2) has a conical structure, and the large end of each of the through holes (6.2) is adjacent to the insertion groove (4). Each of the clamping plates (6.3) has a wedge-shaped structure. One side of each clamping plate (6.3) is fitted with the inner wall of the through hole (6.2) to fix the outer wire (7). The side of each clamping plate (6.3) away from the outer wire (7) is slidably connected to the inner wall of the through hole (6.2).

6. An energy meter for easy wire connection according to claim 5, characterized in that: The surfaces of the card plate (6.3) and the through hole (6.2) that are used to fix the external wire (7) are arranged in parallel, and the surfaces of the card plate (6.3) and the through hole (6.2) that are used to fix the external wire (7) are friction surfaces. The side of the card plate (6.3) away from the external wire (7) and the side of the through hole (6.2) that are in contact with it are friction surfaces.

7. An energy meter for easy wire connection according to claim 5, characterized in that: A plurality of guide rods (6.4) are slidably connected to the mounting base (6.1). One end of each guide rod (6.4) is fixedly connected to the clamping plate (6.3), and a baffle (6.5) is installed at the other end of each guide rod (6.4). A second elastic element (6.6) made of elastic material is installed between each baffle (6.5) and the mounting base (6.1). The sliding direction of each guide rod (6.4) relative to the mounting base (6.1) is parallel to the sliding direction of the adjacent clamping plate (6.3) relative to the through hole (6.2).

8. An energy meter for easy wire connection according to claim 3, characterized in that: The mounting base (6.1) is made of insulating material, and the through holes (6.2) are arranged linearly.

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