Mounting protective shell for three-phase intelligent electric meter

Abstract

The application relates to the technical field of intelligent electric meters, in particular to a mounting protective shell for a three-phase intelligent electric meter, which comprises an electric meter assembly, the electric meter assembly is provided with a display screen on one side, and the electric meter assembly is provided with a protection mechanism on the other side. The mounting protective shell can be used for dustproof and anti-collision protection of wiring terminals through a sliding cover, a sliding block, a sliding groove, a limiting block, a knob lever, an internal thread ring, an upper clamping block, a lower clamping block and a clamping groove, the sliding block and the sliding groove are slidably matched, the sliding cover can stably slide along the two sides of the electric meter body, and the sliding cover covers the wiring terminals to form physical protection when the sliding cover is closed. Meanwhile, the knob lever is in threaded connection with the internal thread ring, drives the upper clamping block to axially move along the limiting hole, and makes the clamping groove of the upper clamping block and the lower clamping block clamp the wire. Further, the device can dustproof and anti-collision protect the wiring terminals through the sliding cover, stably fix the wire through the adjustable clamping structure, and avoid loosening of the wiring position due to external force pulling.

Description

Technical Field

[0001] This application relates to the field of smart meter technology, and in particular to a mounting protective housing for a three-phase smart meter. Background Technology

[0002] In the field of electricity metering, the widespread application of three-phase smart meters has placed higher demands on their safety and reliability. Currently, traditional meter installation and protection methods have many shortcomings. Exposed wiring terminals are susceptible to dust and moisture corrosion, which can lead to poor contact, metering errors, and even short circuits over time. Ineffective fixing and organization of wire connections make them prone to loosening due to external pulling or tangling, causing insulation wear, affecting normal meter operation, increasing maintenance costs, and creating safety hazards. To address these issues, a protective casing for three-phase smart meters has been developed. Its meter components and protection mechanisms work together to achieve accurate metering while improving meter protection performance through physical protection, wire fixing, and wiring organization, ensuring the accuracy of electricity metering and the stability of equipment operation.

[0003] A search revealed Chinese Patent Publication No. CN221176938U, which discloses a protective housing for a three-phase smart meter, relating to the field of smart meter technology. Specifically, it includes a main body with a display screen and a protective housing on its front side, the protective housing being rotatably connected to the main body. A sliding groove is provided on the rear side of the main body, within which a mounting plate is slidably installed. Two clamping plates are symmetrically installed at both ends of the mounting plate, and an adjusting element is provided between the two clamping plates. This invention, by incorporating components such as a bidirectional screw, clamping plates, and mounting plates, allows the mounting plate component to move on the main body during installation, causing the bidirectional screw to be misaligned with the main body, facilitating its driving. Through the cooperation between the bidirectional screw component, the clamping plate component, and the mounting plate component, the two clamping plates can be driven to move closer or further apart, changing the distance between them. This facilitates fixing the device to different positions on different objects, expanding its application range.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following deficiencies: the protective shell of the aforementioned device mainly provides external protection for the main body and does not provide targeted protection for the wiring terminals. The wiring terminals are susceptible to corrosion from dust and moisture, affecting conductivity and service life. Furthermore, the lack of a professional wire sorting and clamping structure makes it easy for wires to become tangled after connection, which not only increases the difficulty of line maintenance but may also lead to safety hazards such as poor contact due to loose wires. Utility Model Content

[0005] To address the problems mentioned in the background section, this application provides a protective housing for a three-phase smart meter.

[0006] This application provides a protective housing for a three-phase smart meter, which adopts the following technical solution: A protective housing for a three-phase smart meter includes a meter assembly, a display screen is provided on one side of the meter assembly, and a protective mechanism is provided on the other side of the meter assembly.

[0007] The protective mechanism includes a sliding cover for protecting the terminals, an upper clamping block for holding the wires, and a cable management strip for combing and protecting the wires. Slider blocks are fixedly connected to both sides of the sliding cover. A lower clamping block is movably connected to the bottom of the upper clamping block. The contact surfaces of the upper and lower clamping blocks are provided with slots. The top of the cable management strip is provided with cable management grooves for accommodating the wires.

[0008] The above solutions form a multi-layered protection system, which effectively improves the dustproof and waterproof performance of the terminals and the reliability of wire fixing through the synergistic effect of sliding shielding and elastic clamping.

[0009] Optionally, the meter assembly includes a meter body for measuring electricity, a slide groove for guiding the sliding cover to slide, and a terminal block for wiring; the slide groove is opened on the left and right sides of the meter body, and a limit block is fixedly connected to the end of the slide groove; the terminal block is fixedly installed between the meter body and the slide cover.

[0010] The above solution employs an integrated design to achieve precise coordination between components, while the slide rail limiting mechanism ensures that the protective cover moves smoothly and is positioned accurately.

[0011] Optionally, the protection mechanism further includes a limiting hole for guiding the movement direction of the upper clamping block, an internally threaded ring with an internally threaded groove, a limiting rod for engaging with the limiting hole, and a knob rod movably mounted on one side of the upper clamping block; the internally threaded ring is fixedly connected to one side of the sliding cover, and the internally threaded ring is threadedly sleeved with the knob rod; the limiting hole is opened through the left and right sides of the sliding cover, the limiting rod is fixedly connected to the left and right sides of the upper clamping block, and the limiting rod is movably connected inside the limiting hole.

[0012] The above scheme constructs a precision transmission system, which, through the synergistic effect of threaded engagement and limit guidance, ensures that the clamping mechanism operates accurately and is subjected to uniform force.

[0013] Optionally, the lower clamping block is fixedly installed on one side of the meter body, and the cable management strip is fixedly connected to one side of the lower clamping block, with the cable management strip and the lower clamping block forming an integral structure.

[0014] The above solution utilizes an integral molding process to enhance structural strength, while simultaneously achieving the combined functions of wire fixing and line arrangement, thereby improving the overall stability of the equipment.

[0015] Optionally, the slider is embedded inside the slide groove and slidably connected to the slide groove; the limiting block at the end of the slide groove is used to limit the sliding stroke of the slide cover.

[0016] The above scheme forms a dual positioning mechanism, which not only ensures smooth opening and closing of the protective cover, but also effectively prevents components from falling off or shifting, thus extending the service life of the device.

[0017] Optionally, the end of the knob rod passes through an internal threaded ring and is rotatably connected to the upper clamping block; by rotating the knob rod, the upper clamping block can move along the axial direction of the limiting hole to clamp or release the wire with the lower clamping block.

[0018] The above solution innovatively designs an adjustable clamping mechanism, which can fix the wires with a simple rotation operation, significantly improving installation efficiency and ease of operation.

[0019] Optionally, the slot has a semi-circular cross-section, and the inner wall of the slot is provided with anti-slip texture to enhance the fixing effect on the wire.

[0020] The above solution employs a contour-following structural design and surface treatment technology to increase the contact area and improve the coefficient of friction, thereby ensuring the stable clamping of wires of different diameters.

[0021] Optionally, the cable management grooves of the cable management bar are multiple parallel grooves, and the depth of the cable management grooves is greater than half the diameter of the wire.

[0022] The above scheme enables the orderly arrangement of multiple lines. The reasonable groove depth design ensures accurate positioning of the conductors and avoids excessive bending that could damage the cable insulation layer.

[0023] Optionally, the length of the limiting rod is greater than the depth of the limiting hole to limit the maximum movement distance of the upper clamping block and prevent excessive twisting of the knob rod.

[0024] By implementing the above solution, a physical limit protection mechanism is set up to avoid component damage caused by operational errors through mechanical intervention, thereby improving the safety protection level of the equipment.

[0025] Optionally, the top of the sliding cover is provided with a transparent observation window, the position of which corresponds to the display screen, for reading the meter data without opening the sliding cover.

[0026] The above solution employs a visual design concept to enable convenient data reading while maintaining protective performance, thereby reducing the risk of wear and tear caused by frequent opening and closing of the protective cover.

[0027] In summary, this application includes the following beneficial technical effects:

[0028] 1. This utility model, by setting up components such as a sliding cover, a slider, a sliding groove, a limiting block, a knob rod, an internal threaded ring, an upper clamping block, a lower clamping block, and a slot, allows the sliding cover to slide smoothly along both sides of the meter body through the sliding engagement of the slider and the sliding groove. When closed, it covers the wiring terminals to form physical protection. At the same time, the threaded connection between the knob rod and the internal threaded ring drives the upper clamping block to move axially along the limiting hole, so that the slots of the upper and lower clamping blocks clamp the wires. Thus, this device can protect the wiring terminals from dust and collision through the sliding cover, and stably fix the wires through the adjustable clamping structure, preventing the wiring from loosening due to external pulling.

[0029] 2. This utility model incorporates components such as a cable management system, cable management channels, limiting rods, limiting holes, and a transparent observation window. The integrated structure of the cable management system and the lower clamping block allows the cable management channels to organize and position the wires. Multiple parallel grooves can categorize and store different wires, preventing tangling. The limiting rods and limiting holes restrict the maximum movement of the upper clamping block, preventing damage to the wires from excessive tightening of the knobs. Simultaneously, the transparent observation window on the top of the sliding cover corresponds to the display screen, allowing data to be read without opening the cover. Thus, this device achieves the effect of orderly organizing and protecting wires through its cable management structure, enhancing clamping safety through the limiting design, and providing convenient data viewing even in a protected state, combined with the observation window design. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0031] Figure 2 This is a partial structural diagram of an embodiment of this application;

[0032] Figure 3 This is a partial structural diagram of the protection mechanism in an embodiment of this application;

[0033] Figure 4 This is a schematic diagram of the partial structure installation of the protection mechanism in an embodiment of this application.

[0034] Reference numerals in the attached drawings: 1. Meter assembly; 101. Meter body; 102. Slide groove; 103. Terminal block; 2. Display screen; 3. Protection mechanism; 301. Sliding cover; 302. Limiting hole; 303. Internal threaded ring; 304. Slider; 305. Knob rod; 306. Upper clamping block; 307. Limiting rod; 308. Slot; 309. Lower clamping block; 310. Cable management strip; 311. Cable management groove. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0036] This application discloses a protective housing for a three-phase smart meter.

[0037] Please see Figure 1 A protective housing for a three-phase smart meter includes a meter assembly 1, a display screen 2 on one side of the meter assembly 1, and a protective mechanism 3 on the other side of the meter assembly 1.

[0038] Please see Figures 2 to 4 The protection mechanism 3 includes a sliding cover 301 for protecting the terminal block 103, an upper clamping block 306 for clamping the wire, and a cable management strip 310 for combing and protecting the wire. Slider blocks 304 are fixedly connected to both sides of the sliding cover 301. A lower clamping block 309 is movably connected to the bottom of the upper clamping block 306. The contact surfaces of the upper clamping block 306 and the lower clamping block 309 are provided with slots 308. The top of the cable management strip 310 is provided with cable management grooves 311 for accommodating the wire.

[0039] The top of the sliding cover 301 is provided with a transparent observation window, which is positioned corresponding to the display screen 2, and is used to read the meter data without opening the sliding cover 301.

[0040] The meter assembly 1 includes a meter body 101 for measuring electricity, a slide groove 102 for guiding the sliding cover 301 to slide, and a terminal block 103 for wiring; the slide groove 102 is opened on the left and right sides of the meter body 101, and a limit block is fixedly connected to the end of the slide groove 102; the terminal block 103 is fixedly installed between the meter body 101 and the sliding cover 301.

[0041] The slider 304 is embedded inside the slide groove 102 and is slidably connected to the slide groove 102; the limiting block at the end of the slide groove 102 is used to limit the sliding stroke of the slide cover 301.

[0042] The protection mechanism 3 also includes a limiting hole 302 for guiding the movement direction of the upper clamping block 306, an internal threaded ring 303 with an internal threaded groove, a limiting rod 307 for engaging with the limiting hole 302, and a knob rod 305 movably mounted on one side of the upper clamping block 306; the internal threaded ring 303 is fixedly connected to one side of the sliding cover 301, and the internal threaded ring 303 is threadedly engaged with the knob rod 305; the limiting hole 302 is opened through the left and right sides of the sliding cover 301, the limiting rod 307 is fixedly connected to the left and right sides of the upper clamping block 306, and the limiting rod 307 is movably connected inside the limiting hole 302.

[0043] The lower clamping block 309 is fixedly installed on one side of the meter body 101, and the cable management strip 310 is fixedly connected to one side of the lower clamping block 309, and the cable management strip 310 and the lower clamping block 309 form an integral structure.

[0044] The end of the knob rod 305 passes through the internal threaded ring 303 and is rotatably connected to the upper clamping block 306; by rotating the knob rod 305, the upper clamping block 306 can move along the axial direction of the limiting hole 302 to clamp or loosen the wire with the lower clamping block 309.

[0045] The cross-section of the slot 308 is semi-circular, and the inner wall of the slot 308 is provided with anti-slip texture to enhance the fixing effect on the wire.

[0046] The cable management grooves 311 of the cable management bar 310 are multiple parallel grooves, and the depth of the cable management grooves 311 is greater than half the diameter of the wire.

[0047] The length of the limiting rod 307 is greater than the depth of the limiting hole 302 to limit the maximum movement distance of the upper clamping block 306 and prevent excessive turning of the knob rod 305.

[0048] Further explanation is needed: The meter assembly 1, as the core functional carrier of the smart meter, mainly consists of the meter body 101, the slide groove 102, and the terminal block 103. The meter body 101 is the core component for power measurement, undertaking the task of collecting and processing three-phase power data. The slide grooves 102 on its left and right sides provide sliding tracks for the sliding cover 301 in the protection mechanism 3. The limit block at the end can precisely limit the sliding stroke of the sliding cover 301 to prevent it from leaving the track. The terminal block 103 is fixedly installed between the meter body 101 and the sliding cover 301 and is used to connect external power transmission lines. It is the key interface for the meter to achieve electrical connection with the power grid.

[0049] The protection mechanism 3 is a protective system designed around the terminal block 103 and the wires. It includes core components such as the sliding cover 301, the upper clamping block 306, and the cable management strip 310. The sliding cover 301 is inserted into the sliding groove 102 by the sliders 304 on both sides and can slide along the meter body 101. When closed, it can effectively block the terminal block 103 to prevent the intrusion of external impurities such as dust and moisture. The transparent observation window on the top can also read the data on the display screen 2 without opening the sliding cover 301, combining protection and convenience. The upper clamping block 306 and the lower clamping block 309 are clamped by the semi-circular slot 308. The cable holder, in conjunction with the screw drive structure of the knob 305 and the internal threaded ring 303, allows for adjustable clamping force. The anti-slip texture on the inner wall further enhances the cable fixing effect, preventing loosening at the connection point due to external pulling. The parallel groove-type cable management channel 311 of the cable management bar 310 can orderly organize the cable. Its depth design ensures that the cable is stably limited, reducing cable tangling and wear. The protection mechanism 3, through multiple protection designs, achieves physical isolation of the terminal block 103, reliable fixing of the cable, and standardized arrangement of the line, significantly improving the safety and reliability of the meter operation.

[0050] The implementation principle of a protective housing for a three-phase smart meter according to an embodiment of this application is as follows:

[0051] First, the meter assembly 1 plays a core metering role. The meter body 101 collects voltage and current data in the three-phase circuit in real time through built-in sensors and metering chips, performs calculations and processes them, and presents the measurement results on the display screen 2 to achieve accurate metering and intuitive display of power data. At the same time, the sliding grooves 102 on both sides provide sliding tracks for the protection mechanism 3, and the wiring terminal 103 serves as an electrical interface for connecting to external circuits.

[0052] Secondly, when the equipment is installed or under maintenance, the protection mechanism 3 is in the open state. The sliding cover 301 is opened by sliding along the slide groove 102 via the sliders 304 on both sides, exposing the wiring terminal 103, which makes it convenient for operators to connect the wiring. At this time, the upper clamping block 306 can be adjusted by rotating the knob rod 305 to separate it from the lower clamping block 309, leaving space for the wire to be connected.

[0053] Next, the wire connection operation is performed. The wires are passed through the wire management groove 311 of the wire management bar 310. The wire management groove 311 is used to comb and position the wires, so that the wires are neatly arranged and avoid tangling. Then, the wire ends are connected to the terminal block 103. Then, by rotating the knob rod 305, the upper clamping block 306 moves axially along the limiting hole 302 and fits against the lower clamping block 309. The semi-circular groove 308 and the anti-slip texture on the inner wall are used to clamp the wires to ensure a stable connection and prevent loosening due to external pulling.

[0054] Next, after completing the wiring, close the sliding cover 301 and push the sliding cover 301 to slide and close it along the slide groove 102. The slider 304 slides in the slide groove 102 until the sliding cover 301 completely covers the terminal 103, which plays a protective role such as dustproof and waterproof, and avoids external factors from affecting the normal operation of the terminal 103. At the same time, the transparent observation window on the top of the sliding cover 301 corresponds to the display screen 2, which makes it easy to read the meter data without opening the sliding cover 301.

[0055] Finally, during the daily operation of the equipment, the meter component 1 continuously monitors and measures the power data, while the protection mechanism 3 continuously performs its protective function. The sliding cover 301 remains closed to protect the wiring terminal 103; the cable management strip 310 stably fixes the wires to prevent them from shaking or rubbing against each other; the upper and lower clamps tightly hold the wires to ensure the reliability of the electrical connection and ensure the stable and safe operation of the three-phase smart meter.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A protective housing for a three-phase smart meter, comprising a meter assembly (1), characterized in that: A display screen (2) is provided on one side of the meter assembly (1), and a protection mechanism (3) is provided on the other side of the meter assembly (1); The protection mechanism (3) includes a sliding cover (301) for protecting the terminal block (103), an upper clamping block (306) for clamping the wire, and a cable management strip (310) for combing and protecting the wire; the sliding cover (301) is fixedly connected to the left and right sides with sliders (304), the bottom of the upper clamping block (306) is movably connected to the lower clamping block (309), the contact surfaces of the upper clamping block (306) and the lower clamping block (309) are provided with slots (308), and the top of the cable management strip (310) is provided with cable management grooves (311), which are used to accommodate the wire.

2. The mounting protective housing for a three-phase smart meter according to claim 1, characterized in that: The meter assembly (1) includes a meter body (101) for measuring electricity, a slide groove (102) for guiding the sliding cover (301) to slide, and a terminal block (103) for wiring; the slide groove (102) is opened on the left and right sides of the meter body (101), and a limit block is fixedly connected to the end of the slide groove (102); the terminal block (103) is fixedly installed between the meter body (101) and the sliding cover (301).

3. The mounting protective housing for a three-phase smart meter according to claim 1, characterized in that: The protective mechanism (3) further includes a limiting hole (302) for guiding the movement direction of the upper clamping block (306), an internal threaded ring (303) with an internal threaded groove, a limiting rod (307) for cooperating with the limiting hole (302), and a knob rod (305) movably installed on one side of the upper clamping block (306); the internal threaded ring (303) is fixedly connected to one side of the sliding cover (301), and the internal threaded ring (303) is threadedly connected to the knob rod (305); the limiting hole (302) is opened through the left and right sides of the sliding cover (301), the limiting rod (307) is fixedly connected to the left and right sides of the upper clamping block (306), and the limiting rod (307) is movably connected inside the limiting hole (302).

4. The mounting protective housing for a three-phase smart meter according to claim 1, characterized in that: The lower clamping block (309) is fixedly installed on one side of the meter body (101), and the cable management strip (310) is fixedly connected to one side of the lower clamping block (309), and the cable management strip (310) and the lower clamping block (309) form an integral structure.

5. The mounting protective housing for a three-phase smart meter according to claim 2, characterized in that: The slider (304) is embedded inside the slide groove (102) and is slidably connected to the slide groove (102); the limiting block at the end of the slide groove (102) is used to limit the sliding stroke of the slide cover (301).

6. The mounting protective housing for a three-phase smart meter according to claim 3, characterized in that: The end of the knob rod (305) passes through the internal threaded ring (303) and is rotatably connected to the upper clamping block (306); by rotating the knob rod (305), the upper clamping block (306) can move along the axial direction of the limiting hole (302) to clamp or loosen the wire with the lower clamping block (309).

7. The mounting protective housing for a three-phase smart meter according to claim 1, characterized in that: The slot (308) has a semi-circular cross-section, and the inner wall of the slot (308) is provided with anti-slip texture to enhance the fixing effect on the wire.

8. The mounting protective housing for a three-phase smart meter according to claim 4, characterized in that: The cable management groove (311) of the cable management bar (310) consists of multiple parallel grooves, and the depth of the cable management groove (311) is greater than half the diameter of the wire.

9. A protective housing for a three-phase smart meter according to claim 3, characterized in that: The length of the limiting rod (307) is greater than the depth of the limiting hole (302) to limit the maximum movement distance of the upper clamping block (306) and prevent excessive twisting of the knob rod (305).

10. The mounting protective housing for a three-phase smart meter according to claim 1, characterized in that: The top of the sliding cover (301) is provided with a transparent observation window, the position of which corresponds to the display screen (2), and is used to read the meter data without opening the sliding cover (301).

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