Intelligent electric meter wire clamping structure

Abstract

The utility model provides a wire clamping structure of an intelligent electric meter, which belongs to the technical field of intelligent electric meters and comprises a mounting shell, a sealing cover shell, a control panel, a wiring groove, a plurality of partition plates arranged in the wiring groove and a plurality of wire fixing grooves formed by the partition plates. A wire pressing block is arranged in the wire fixing groove and is used for connecting a wire with the wiring core in the wire fixing groove through a connecting piece; the first elastic table and the second elastic table are oppositely arranged on the side wall of the wire fixing groove, and when the wire pressing block is fixed through the connecting piece, the first elastic table and the second elastic table deform and then make contact with the two sides of the wire pressing block; a plurality of mounting holes are formed in the mounting shell and the sealing cover shell, and the mounting shell and the sealing cover shell are connected by penetrating a plurality of fixing pieces into the mounting holes; the wire clamping structure of the intelligent electric meter provided by the utility model can dynamically compensate the loosening trend caused by environmental vibration, and effectively solves the problems that the traditional screw crimping depends on torque control, and the lead is easy to loosen due to thread wear or vibration.

Description

Technical Field

[0001] This utility model relates to the field of smart meter technology, and in particular to a smart meter cable clamping structure. Background Technology

[0002] With the advancement of smart grid construction, smart meters, as core metering devices, directly affect metering accuracy and electricity safety through the reliability of their wiring. Existing smart meters generally employ a traditional screw-press-fit wire clamping structure, using screws to fix the wires.

[0003] However, in the existing wire fixing methods, screw crimping relies on torque control during installation. If the tightening force is insufficient or the threads are worn, it can easily lead to a small gap between the wire and the terminal. Especially in scenarios with environmental vibration, such as street-facing buildings and industrial sites, the wire is prone to gradually loosening, causing poor contact, which in turn leads to fluctuating meter readings, metering errors, and even local overheating due to increased contact resistance, posing a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a smart meter cable clamping structure that can solve the above-mentioned technical problems.

[0005] This utility model provides a smart meter cable clamping structure, including a mounting housing, a cover housing, and a control board, and further includes:

[0006] The wiring trough has several partitions inside, which together form several wire fixing troughs; and wire pressing blocks are installed in the wire fixing troughs. The wire pressing blocks connect the wires to the wiring cores in the wire fixing troughs through connectors. The wiring cores are connected to the control board through wires.

[0007] The first elastic platform and the second elastic platform are arranged opposite to each other on the side wall of the wire fixing groove. When the wire pressing block is fixed by the connector, the first elastic platform and the second elastic platform deform and contact the two sides of the wire pressing block.

[0008] Both the mounting housing and the cover housing are provided with several mounting holes. Several fasteners are inserted into these mounting holes to connect the mounting housing and the cover housing.

[0009] As a further technical solution, the first flexible platform includes:

[0010] An elastic plate and a slider disposed on the elastic plate; the elastic plate is disposed on the side wall of the fixed groove.

[0011] As a further technical solution, the pressure block is provided with a sliding groove, and the slider is adapted to the sliding groove.

[0012] As a further technical solution, the slider is a dovetail slider and the groove is a dovetail groove.

[0013] As a further technical solution, an installation groove is provided on the side wall of the cable tray, and an elastic plate is inserted into the installation groove.

[0014] As a further technical solution, the elastic plate includes a connecting section and plug-in sections disposed at both ends of the connecting section, and the plug-in sections are provided with limiting sections that are inserted into the mounting groove.

[0015] As a further technical solution, the wiring trough is provided with a detachable sealing plate, the two ends of which are slidably connected to the wall of the wiring trough.

[0016] As a further technical solution, a slide rail is provided on the wall of the wiring trough, and connecting grooves are opened at both ends of the sealing plate, which are adapted to the slide rail.

[0017] As a further technical solution, the sealing plate has several first wire-locking ports, and the sealing cover shell has several second wire-locking ports. In the installed state, the wire is placed between the first wire-locking ports and the second wire-locking ports.

[0018] As a further technical solution, several limiting protrusions are provided on both the first and second wire-locking ports.

[0019] The technical solution of this utility model uses a first elastic platform and a second elastic platform arranged opposite to each other on the side wall of the wire trough. When the wire pressing block is fixed, it generates elastic deformation and clamps both sides of the wire pressing block, forming a dual fixing structure of connector pressing and elastic clamping. The technical solution of this utility model can dynamically compensate for the loosening tendency caused by environmental vibration, effectively solving the problem that traditional screw pressing relies on torque control and is prone to wire loosening due to thread wear or vibration. Even in high-frequency vibration scenarios such as street-facing buildings and industrial sites, it can still maintain a stable clamping force, reducing the risk of meter data fluctuation and measurement error. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a first-view perspective perspective view of the smart meter card wire structure of this utility model;

[0022] Figure 2 This is a second-view perspective perspective view of the smart meter card wire structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of a smart meter card wire according to the present invention;

[0024] Figure 4 for Figure 3 Enlarged structural diagram of section A;

[0025] Figure 5 This is a perspective view of another embodiment of the mounting housing in this utility model;

[0026] Figure 6 for Figure 5 Enlarged structural diagram of section B;

[0027] Figure 7 This is a perspective view of another state of the sealing plate in this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 101-Capping housing; 102-Mounting housing; 121-Second wire clamping port; 201-Sealing plate; 211-Connecting groove; 212-First wire clamping port; 202-Slide rail; 300-Partition plate; 400-Wire fixing groove; 401-Mounting groove; 500-Wire pressing block; 501-Connector; 502-Slide groove; 600-First elastic platform; 601-Elastic plate; 611-Connecting section; 612-Plug-in section; 613-Limiting section; 602-Slider; 700-Second elastic platform; 800-Mounting hole; 900-Limiting protrusion. Detailed Implementation

[0030] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 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 this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, 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; 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.

[0033] like Figure 1-7 As shown, the present invention proposes a smart meter cable clamping structure, including a mounting housing 102, a cover housing 101, and a control board. In this invention, the control board is mounted on the mounting housing 102, and the mounting housing 102 and the cover housing 101 cooperate to seal and protect the control board. In addition, a display hole is opened on the cover housing 101, and a display screen is provided in the display hole. The control board is connected to the display screen. Specifically, the control board is the control board in the existing smart meter, which can perform electrical energy measurement and display the measurement results on the display screen.

[0034] It also includes wiring channels, which are provided with several partitions 300, forming several wire-fixing channels 400. A wire-pressing block 500 is provided within each wire-fixing channel 400. The wire-pressing block 500 connects the wire to the wiring core (a conventional component of a smart meter used for current conduction) within the wire-fixing channel 400 via a connector 501. The wiring core is connected to the control board via a wire. When connecting the wire, the wire is placed between the wiring core and the wire-pressing block 500, and the connector 501 brings the wire-pressing block 500 into contact with the wire. As the connector 501 is continuously tightened, the wire and wiring core are brought into close contact through the wire-pressing block 500, thus achieving the connection. The wire-fixing channels 400 in this invention have the same structure; to save space, the structure of each wire-fixing channel 400 will not be described separately. Preferably, eight channels are provided, which can accommodate the three-phase live wires (L1, L2, L3), neutral wire (N), ground wire (PE), and three auxiliary signal lines of a smart meter.

[0035] The first elastic platform 600 and the second elastic platform 700 are disposed opposite each other on the side wall of the wire fixing groove 400. When the wire pressing block 500 is fixed by the connector 501, the first elastic platform 600 and the second elastic platform 700 deform and come into contact with both sides of the wire pressing block 500. Specifically, as the connector 501 is continuously tightened, the wire pressing block 500 moves and squeezes the first elastic platform 600 and the second elastic platform 700, causing them to deform. When the wire pressing block 500 is pressed by the connector 501, the first elastic platform 600 and the second elastic platform 700 on both sides of the wire pressing block 500 apply a pushing force to the wire pressing block 500, thereby limiting the wire pressing block 500 through the cooperation of the connector 501, the first elastic platform 600 and the second elastic platform 700. In this utility model, the connector 501 is preferably a screw.

[0036] Both the mounting housing 102 and the cover housing 101 are provided with a plurality of mounting holes 800. A plurality of fasteners are inserted into the plurality of mounting holes 800 to connect the mounting housing 102 and the cover housing 101. After the mounting housing 102 and the cover housing 101 are connected, the wires can be clamped by the cooperation of the mounting housing 102 and the cover housing 101, further increasing the fixation of the wires. The preferred fasteners are bolts or screws.

[0037] The technical solution of this utility model uses a first elastic platform 600 and a second elastic platform 700 arranged opposite each other on the side wall of the wire trough 400. When the wire pressing block 500 is fixed, it generates elastic deformation and clamps both sides of the wire pressing block 500, forming a dual fixing structure of pressing and elastic clamping of the connector 501. The technical solution of this utility model can dynamically compensate for the loosening tendency caused by environmental vibration. Specifically, when environmental vibration causes the connector 501 to loosen slightly, the elastic restoring force of the first elastic platform 600 and the second elastic platform 700 can continuously apply a lateral thrust to the wire pressing block 500, firmly pressing the wire pressing block 500 against the wiring core, offsetting the loose gap, maintaining the tight contact between the wire and the wiring core, effectively solving the problem of traditional screw pressing relying on torque control and being prone to wire loosening due to thread wear or vibration. Even in high-frequency vibration scenarios such as street-facing buildings and industrial sites, it can still maintain a stable clamping force, reducing the risk of meter data fluctuation and metering error.

[0038] like Figure 3 and Figure 4As shown, the first elastic platform 600 includes an elastic plate 601 and a slider 602 disposed on the elastic plate 601; the elastic plate 601 is disposed on the side wall of the wire fixing groove 400; and the pressure block 500 is provided with a sliding groove 502, the slider 602 being adapted to the sliding groove 502; before operating the pressure block 500, the slider 602 is placed in the sliding groove 502, the slider 602 can limit the position of the pressure block 500, preventing the pressure block 500 from shifting when operating the connector 501; in addition, as the connector 501 is operated, the pressure block 500 can move along the slider 602, and the elastic plate 601 deforms during the movement; when the pressure block 500 is pressed, the slider 602 pushes the pressure block 500 under the action of the elastic plate 601, thereby limiting the position of the pressure block 500; in this utility model, the elastic plate 601 is made of tin bronze, which has good elastic recovery performance;

[0039] like Figure 3 As shown, slider 602 is a dovetail slider 602, and groove 502 is a dovetail groove; this ensures that slider 602 does not detach from groove 502 after installation, and guarantees the stability of first elastic platform 600 and pressure block 500 after installation; in addition, mounting groove 401 is provided on the side wall of fixed groove 400, and elastic plate 601 is inserted into mounting groove 401; the mounting groove 401 can restrict the position of elastic plate 601, preventing elastic plate 601 from detaching from side wall of fixed groove 400 during deformation; specifically, elastic plate 601 includes connecting section 611 and two parts disposed on connecting section 611. The connector 612 has a plug-in section 612, which is provided with a limiting section 613 that inserts into the mounting groove 401. When the limiting section 613 is placed in the mounting groove 401, it positions the connector 612 and supports the connecting section 611. As the connector 501 is tightened, the pressure block 500 slides along the slider 602 and presses the slider 602, causing the connecting section 611 and the plug-in section 612 to deform. After deformation, the connecting section 611 and the plug-in section 612 will generate a reaction force, which presses the pressure block 500 to limit its position.

[0040] It should be noted that the second elastic platform 700 has the same structure as the first elastic platform 600, but is arranged opposite to the other side of the pressure block 500. To save space, this utility model will not describe the second elastic platform 700 further.

[0041] like Figure 2 and Figure 5As shown, the wiring trough is provided with a detachable sealing plate 201, and the two ends of the sealing plate 201 are slidably connected to the wall of the wiring trough. When connecting wires, the sealing plate 201 can be separated from the side wall of the wiring trough for wire installation, thereby avoiding the sealing plate 201 from affecting the operation of the connector 501 and improving the wire installation efficiency. After the wires are installed, the sealing plate 201 is installed on the side wall of the wiring trough, and the cover housing 101 is installed. After the cover housing 101 and the mounting housing 102 are installed by the fastener, the cover housing 101 and the sealing plate 201 cooperate to hold the wires in place, further fixing the wires.

[0042] Specifically, a slide rail 202 is provided on the wall of the wiring groove, and a connecting groove 211 is provided at both ends of the sealing plate 201. The connecting groove 211 is adapted to the slide rail 202. When the sealing plate 201 is operated, the connecting groove 211 on the sealing plate 201 slides on the slide rail 202 to realize the disassembly and assembly operation of the sealing plate 201.

[0043] like Figure 5 and Figure 7 As shown in Embodiment 1 of this utility model, the sealing plate 201 is provided with a first wire-locking port 212. When the wire is installed, the sealing plate 201 contacts the bottom of the wiring groove to limit the wire. When the cover housing 101 is installed, the cover housing 101 presses the sealing plate 201, thereby limiting the wire.

[0044] like Figure 2 As shown in Embodiment 2 of this utility model, the sealing plate 201 has a plurality of first wire-clamping ports 212, and the cover housing 101 has a plurality of second wire-clamping ports 121. In the installed state, the wire is placed between the first wire-clamping ports 212 and the second wire-clamping ports 121. After the wire is installed, the wire is placed in the first wire-clamping port 212. After the cover housing 101 is installed, the second wire-clamping ports 121 are connected to the first wire-clamping ports 212, and the wire is clamped by the first wire-clamping ports 212 and the second wire-clamping ports 121, thereby limiting the wire.

[0045] It should be noted that in both Embodiment 1 and Embodiment 2, a plurality of limiting protrusions 900 are provided on the first wire-locking port 212 and the second wire-locking port 121. When the wire is placed between the first wire-locking port 212 and the bottom of the wiring groove, or between the first wire-locking port 212 and the second wire-locking port 121, the limiting protrusions 900 can increase the friction between the wire and the wire, further increasing the stability of the wire after it is limited, and improving the limiting effect of the wire.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A smart meter card wiring structure comprising a mounting case (102), a cover case (101) and a control board, characterized in that, Also include: The wiring slot is provided with a plurality of partitions (300), and a plurality of fixed wiring slots (400) are formed by a plurality of partitions (300); and a wire pressing block (500) is arranged in the fixed wiring slot (400), the wire pressing block (500) is connected with the wiring core in the fixed wiring slot (400) through the connecting piece (501), and the wiring core is connected with the control panel through the wire; The first elastic table (600) and the second elastic table (700) are arranged on the side wall of the fixed wiring slot (400), and when the wire pressing block (500) is fixed through the connecting piece (501), the first elastic table (600) and the second elastic table (700) are deformed and contact the two sides of the wire pressing block (500); The mounting shell (102) and the cover shell (101) are provided with a plurality of mounting holes (800), and a plurality of fixing members are inserted into the mounting holes (800) to connect the mounting shell (102) and the cover shell (101).

2. The smart meter carding structure of claim 1, wherein, The first elastic table (600) comprises: The elastic plate (601) and the sliding block (602) arranged on the elastic plate (601); the elastic plate (601) is arranged on the side wall of the fixed wiring slot (400).

3. The smart meter carding structure of claim 2, wherein, The wire pressing block (500) is provided with a sliding groove (502), and the sliding block (602) is matched with the sliding groove (502).

4. The smart meter carding structure of claim 3, wherein, The sliding block (602) is a dovetail sliding block (602), and the sliding groove (502) is a dovetail groove.

5. The smart meter card structure of claim 2, wherein, The side wall of the fixed wiring slot (400) is provided with a mounting groove (401), and the elastic plate (601) is inserted into the mounting groove (401).

6. The smart meter card structure of claim 5, wherein, The elastic plate (601) comprises a connecting section (611) and a plug-in section (612) arranged at both ends of the connecting section (611), and the plug-in section (612) is provided with a limiting section (613) inserted into the mounting groove (401).

7. The smart meter carding structure of claim 1, wherein, The wiring slot is provided with a detachable cover plate (201), and the two ends of the cover plate (201) are slidably connected with the slot wall of the wiring slot.

8. The smart meter card structure of claim 7, wherein, The slot wall of the wiring slot is provided with a sliding rail (202), and the two ends of the cover plate (201) are provided with a connecting groove (211), and the connecting groove (211) is matched with the sliding rail (202).

9. The smart meter card structure of claim 8, wherein, A plurality of first wire clamping holes (212) are formed in the cover plate (201), and a plurality of second wire clamping holes (121) are formed in the cover shell (101), and in the installed state, the wire is arranged between the first wire clamping hole (212) and the second wire clamping hole (121).

10. The smart electricity meter carding structure of claim 9, wherein, The first wire clamping hole (212) and the second wire clamping hole (121) are provided with a plurality of limiting protrusions (900).

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