Intelligent electric meter and intelligent electric meter using method
Through the structural design of the smart meter, components such as clamping rods, insertion rods and extrusion rods are used to fix the wires, combined with absorbent cotton and scrapers to prevent moisture and dust, which solves the problems of the meter being disassembled privately and affected by condensation water and dust, and achieves the anti-theft and protection effect of the meter.
Patent Information
- Application Number
- CN202510947097.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2025-09-16
AI Technical Summary
Existing smart meters are easily disassembled without permission during power outages, and are prone to condensation in humid environments, with dust adhesion affecting observation and circuits easily damaged.
A smart meter structure was designed, including a base, an upper cover, and a lower cover. Components such as clamping rods, insertion rods, and extrusion rods were used to fix and protect the wires. Water-absorbent cotton and scrapers were used to prevent moisture and dust. A one-way rotation restriction device was used to prevent illegal disassembly.
It effectively prevents the meter from being illegally disassembled, keeps the inside of the meter dry, prevents dust from affecting observation, ensures circuit safety, and realizes the anti-theft and protection functions of the meter.
Smart Images

Figure CN120652148A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of electric meters, and more particularly to a smart electric meter and a method for using the smart electric meter. Background Art
[0002] Smart meters are essential data collection devices for smart grids. They collect, measure, and transmit raw energy data, forming the foundation for information integration, analysis, optimization, and presentation. In addition to the basic electricity consumption metering capabilities of traditional meters, smart meters also incorporate intelligent features such as bidirectional multi-rate metering, user-side control, two-way data communication with multiple data transmission modes, and anti-theft measures to adapt to smart grids and renewable energy applications. However, existing smart meters often rely on circuitry for anti-theft protection. If the meter is unauthorizedly disassembled and adjusted during a power outage, the internal device may not be able to provide a timely alarm. Summary of the Invention
[0003] The present invention provides a smart electric meter and a method for using the smart electric meter, aiming to prevent the electric meter from being disassembled and adjusted privately.
[0004] The above objectives are achieved through the following technical solutions:
[0005] A circuit board is provided in the base, an upper cover is fixed on the base, a lower cover is slidably connected to the upper cover, a plurality of fixing holes are provided under the base, an insertion rod is slidably connected in each fixing hole, a vertical wire hole is provided at each fixing hole, and two clamping rods are provided under each wire hole.
[0006] A plurality of extrusion rods are slidably connected to the lower cover plate, an extrusion spring is fixedly connected between each extrusion rod and the lower cover plate, and an insulating protrusion is provided at the front end of each extrusion rod.
[0007] A method for using a smart meter includes the following steps:
[0008] S1: Fix the base in the meter box;
[0009] S2: Install the upper cover on the base;
[0010] S3: Insert the wire into the electric meter through the wire hole;
[0011] S4: Slide the lower cover plate under the upper cover plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a flowchart of how to use a smart meter;
[0013] Figure 2 Schematic diagram of the overall structure of a smart meter Figure 1 ;
[0014] Figure 3 Schematic diagram of the overall structure of a smart meter Figure 2 ;
[0015] Figure 4 It is a structural diagram of the base and heat dissipation vents;
[0016] Figure 5 Schematic diagram of the structure inside the upper cover;
[0017] Figure 6 It is a structural diagram of the insertion rod and the clamping rod part;
[0018] Figure 7 It is a structural diagram of the shaft part;
[0019] Figure 8 It is a structural diagram of the card bar and rack part;
[0020] Figure 9 It is a structural diagram of the support block position;
[0021] Figure 10 It is a structural diagram of the slide part;
[0022] Figure 11 Schematic diagram of the structure inside the lower cover.
[0023] In the figure: base 11; upper cover 101; glass panel 102; lower cover 103; heat dissipation vent 104; absorbent cotton 105; screw 106; scraper 107; clamping strip 108; support block 109; fixing hole 110; wire hole 111; extrusion rod 112; extrusion spring 113;
[0024] Insert rod 12; clamping rod 201; slide 202; track groove 203; rotating rod 204; rotating shaft 205; gear 206; rack 207. DETAILED DESCRIPTION
[0025] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.
[0026] The present invention will be further described below with reference to the accompanying drawings.
[0027] like Figures 2 to 11 , in order to solve the problem of electricity meters being dismantled privately.
[0028] A circuit board is provided in the base 11, an upper cover 101 is fixedly connected to the base 11, a lower cover 103 is slidably connected to the upper cover 101, a plurality of fixing holes 110 are provided below the base 11, an insertion rod 12 is slidably connected in each fixing hole 110, a vertical wire hole 111 is provided at each fixing hole 110, and two clamping rods 201 are provided below each wire hole 111.
[0029] Initially, the upper cover 101 and the base 11 are fixedly connected by a permanent snap fastener, making them easy to install and difficult to disassemble. The lower cover 103 is slidably connected to the upper cover 101, and the wires are located in the wire holes 111. The fixing holes 110 and the wire holes 111 intersect with each other. When in use, the wires are inserted into the meter from the bottom and then fixed in the wire holes 111 to prevent them from sliding. To disassemble the meter, when the upper cover 101 and the base 11 are separated by external force, the clamping rod 201 below each wire hole 111 moves downward, first clamping the wire in the wire hole 111, and then pulling the wire out of the wire hole 111, so that the fixing hole 110 becomes partially connected. At this time, the insertion rod 12 is simultaneously driven to move forward, thereby blocking the wire hole 111, preventing the wire from being inserted into the wire hole 111 again and thus preventing it from contacting the circuit board inside the meter. As a result, the meter cannot be used after the cover is opened, avoiding the problem of unauthorized disassembly of the meter.
[0030] like Figures 3 to 5 , to solve the problem of condensation water inside the meter in a humid environment.
[0031] Two heat dissipation openings 104 are respectively provided on both sides of the base 11 , and absorbent cotton 105 is bonded to positions on the upper cover 101 corresponding to the heat dissipation openings 104 .
[0032] When the ambient humidity is low, the inside of the meter exchanges energy with the outside world through the heat dissipation vent 104 to facilitate heat dissipation. The absorbent cotton 105 is set at the heat dissipation vent 104. When the outside air flows into the meter, the absorbent cotton 105 can absorb moisture in the air, thereby ensuring that the inside of the meter is dry and avoiding condensation. When the internal temperature of the meter is high, the air convects outward to dissipate heat, and at this time the moisture in the absorbent cotton 105 can be evaporated and discharged outward.
[0033] Preferably, an inclined guide groove is provided in the heat dissipation port 104, and the absorbent cotton 105 is located above the guide groove. When the humidity is low, the absorbent cotton 105 has low water content and shrinks. At this time, a gap will be generated between the guide groove part and the absorbent cotton 105, which is convenient for heat exchange; similarly, when the humidity is high, the absorbent cotton 105 expands to completely cover the heat dissipation port 104 to prevent water vapor from entering.
[0034] like Figure 4 and Figure 5, in order to solve the problem that dust in the air adheres to the inside of the meter and affects observation.
[0035] A display screen is mounted on the base 11, and the display screen is electrically connected to the circuit board. A glass plate 102 is provided at a position corresponding to the display screen on the upper cover 101. A scraper 107 is slidably connected to the upper cover 101 and is located between the glass plate 102 and the display screen. A screw 106 is rotatably connected to the upper cover 101, and the screw 106 threadably drives the scraper 107 to move.
[0036] To ensure heat dissipation, the interior of the meter is connected to the external environment. Due to static electricity, dust in the air easily adheres to the glass plate 102 and the display screen, affecting the reading of the meter. When dust accumulates on the glass plate 102 and the display screen, screw 106, which passes through a knob on one end of the upper cover 101, is rotated. This thread drives scraper 107 to move, thereby scraping away dust from the glass plate 102 and the display screen, making it easier to read the meter reading.
[0037] like Figures 6 to 10 , in order to realize the function of the corresponding clamping rods 201 approaching each other to clamp the wires.
[0038] Each wire hole 111 is slidably connected to a slide 202, each two corresponding clamping rods 201 are slidably connected in the corresponding slide 202, a tension spring is fixed between each two corresponding clamping rods 201, and a support block 109 is fixed between each two corresponding clamping rods 201 on the base 11.
[0039] Initially, the corresponding clamping rods 201 are located on both sides of the support block 109. At this time, the tension spring is in a stretched state, and the distance between the two clamping rods 201 is greater than the diameter of the wire hole 111, thereby preventing interference with the insertion of the wires during installation. When the upper cover 101 is forcibly disassembled, the slide 202 moves downward, thereby driving the internal clamping rods 201 downward. After the two clamping rods 201 leave the sides of the support block 109, the tension spring pulls the clamping rods 201 closer together, thereby holding the wires between them. As the clamping rods 201 continue to move downward, the wires are pulled out of the wire hole 111.
[0040] like Figures 6 to 8 , in order to solve the problem of synchronous movement of the insertion rod 12 in the fixing hole 110.
[0041] The base 11 is rotatably connected to a rotating shaft 205 , and a plurality of rotating rods 204 are fixedly connected to the rotating shaft 205 . Each rotating rod 204 is provided with a sliding groove at one end, and each insertion rod 12 is slidably connected in the corresponding sliding groove.
[0042] Initially, the upper end of the rotating rod 204 is in a backward tilted state. At this time, the end of the insertion rod 12 is located at the upper end of the slide groove. When the rotating shaft 205 is rotated, the rotating rod 204 is driven to rotate, and the upper end of the rotating rod 204 is moved closer to the electric meter, thereby driving the insertion rod 12 to be synchronously inserted into the corresponding fixing hole 110, and at the same time moving in the slide groove to avoid getting stuck, so that it blocks the wire hole 111.
[0043] like Figure 6 , in order to solve the problem of simultaneous movement of the clamping rod 201 and the insertion rod 12.
[0044] Two track grooves 203 are fixedly connected to each slide 202 , and the other end of each rotating rod 204 is slidably connected in the track groove 203 .
[0045] When the rotating shaft 205 rotates, the rotating rod 204 rotates, and the upper end of the rotating rod 204 drives the insertion rod 12 to be inserted into the fixing hole 110; at the same time, the lower end of the rotating rod 204 gradually changes from an inclined state to a vertical state, thereby pushing the track groove 203 downward to move, and then driving the slide 202 downward to achieve the purpose of clamping the wire 201 to move it out of the wire hole 111, and at the same time controlling the insertion rod 12 to move to block the wire hole 111. In order to avoid the problem of the insertion rod 12 moving too early and pressing on the wire, the length of the insertion rod 12 is set not too long, so that initially there is a certain distance between the front end of the insertion rod 12 and the intersection of the wire hole 111 and the fixing hole 110.
[0046] like Figure 8 , in order to solve the problem of rotation of the rotating shaft 205.
[0047] A one-way rotation limiting device is provided between the rotating shaft 205 and the base 11 . Two gears 206 are fixedly connected to the rotating shaft 205 , and two racks 207 are slidably connected to the base 11 . Each rack 207 is engaged with a corresponding gear 206 .
[0048] The one-way rotation limiting device can be a ratchet pawl mechanism or a one-way bearing, thereby allowing the rotating shaft 205 to rotate in only one direction. Initially, the rack 207 is located at the rear. When the upper cover 101 is opened, the rack 207 moves forward, meshing with the drive gear 206 to rotate, thereby driving the rotating shaft 205 to rotate.
[0049] like Figure 8 , in order to realize the linkage between the upper cover 101 and the rack 207.
[0050] Two clips 108 are fixed to the upper cover 101 , and each clip 108 is connected to the corresponding rack 207 via a buckle.
[0051] When the upper cover 101 is initially installed, the two clamping strips 108 are driven to move synchronously toward the inside of the base 11 , thereby engaging with the rack 207 . When the upper cover 101 is opened again, the clamping strips 108 drive the rack 207 to move, thereby driving the rotating shaft 205 to rotate.
[0052] like Figure 11 , to solve the problem of fixing the wires and the meter.
[0053] A plurality of extrusion rods 112 are slidably connected to the lower cover 103 . A compression spring 113 is fixedly connected between each extrusion rod 112 and the lower cover 103 . An insulating protrusion is provided at the front end of each extrusion rod 112 .
[0054] During installation, first install the upper cover 101, then insert the wires into the corresponding wire holes 111, and then install the lower cover 103 so that the squeezing rods 112 in the lower cover 103 are aligned with each fixing hole 110, so that the squeezing rods 112 fix the wires through the elastic force of the squeezing springs 113, making it easier to fix the wires. The lower cover 103 and the upper cover 101 are connected by sliding, so that when the external wires of the meter fail, the lower cover 103 can be moved to facilitate the removal and replacement of the wires. A baffle is provided on the upper cover 101, so that when the upper cover 101 moves, the lower cover 103 will be driven to move at the same time, thereby ensuring that the fixation of the wires can be canceled at the same time when the upper cover 101 is forcibly opened.
[0055] like Figure 1 A method for using a smart meter includes the following steps:
[0056] S1: Fix the base 11 in the meter box and adjust the interior to meet the requirements;
[0057] S2: Install the upper cover 101 on the base 11 to protect the interior of the meter;
[0058] S3: Insert the wire into the electric meter through the wire hole 111 to connect the circuit;
[0059] S4: Slidingly install the lower cover 103 under the upper cover 101 to fix the wires.
Claims
1. A smart electric meter, characterized in that: It includes a base, a circuit board is arranged inside the base, an upper cover is fixedly connected to the base, a lower cover is slidably connected to the upper cover, a plurality of fixing holes are arranged under the base, an insertion rod is slidably connected in each fixing hole, a vertical wire hole is arranged at each fixing hole, and two clamping rods are arranged under each wire hole.
2. The smart meter according to claim 1, wherein: Two heat dissipation openings are provided on the base, and water-absorbing cotton is fixedly connected to the upper cover plate at positions corresponding to the heat dissipation openings.
3. The smart meter according to claim 1, wherein: A glass plate is fixed on the upper cover, a display screen is arranged on the base, a scraper is slidably connected to the upper cover, a screw is rotatably connected to the upper cover, and threaded transmission is provided between the screw and the scraper.
4. The smart meter according to claim 1, wherein: Each wire hole is slidably connected to a slide, each two corresponding clamping rods are slidably connected to the corresponding slide, a tension spring is fixed between each two corresponding clamping rods, and a support block is fixed between each two corresponding clamping rods on the base.
5. The smart electric meter according to claim 4, characterized in that: A rotating shaft is rotatably connected to the base, and a plurality of rotating rods are fixedly connected to the rotating shaft. A sliding groove is provided at one end of each rotating rod, and each insertion rod is slidably connected in the corresponding sliding groove.
6. The smart electric meter according to claim 5, characterized in that: Each slide is fixedly connected to two track grooves, and the other end of each rotating rod is slidably connected in the track groove.
7. The smart electric meter according to claim 5, characterized in that: A one-way rotation limiting device is provided between the rotating shaft and the base. Two gears are fixedly connected to the rotating shaft, and two racks are slidably connected to the base. Each rack is engaged with a corresponding gear.
8. The smart electric meter according to claim 7, characterized in that: Two clips are fixed to the upper cover, and each clip is connected to the corresponding rack via a buckle.
9. The smart electric meter according to claim 8, characterized in that: A plurality of extrusion rods are slidably connected to the lower cover plate, an extrusion spring is fixedly connected between each extrusion rod and the lower cover plate, and an insulating protrusion is provided at the front end of each extrusion rod.
10. The method for using the smart meter according to claim 1, characterized in that: The method comprises the following steps: S1: Fix the base 11 in the meter box; S2: Install the upper cover 101 on the base 11; S3: Insert the wire into the electric meter through the wire hole 111; S4: Slidingly install the lower cover 103 under the upper cover 101 .