Anti-theft electric energy meter
By designing the main body of the electricity meter, the control box, the mounting components, and the magnetic fixing components, the problem of electricity meter theft has been solved, achieving stable connection and timely protection, ensuring the safety of the electricity meter and the effectiveness of preventing electricity theft.
Patent Information
- Application Number
- CN202520326361.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing electricity meters are easily opened for wire theft, reducing their safety.
The design incorporates an electricity meter body, control box, control components, mounting components, and magnetic fixing components. It is fixedly connected by wiring components and uses magnetic fixing components to prevent electricity thieves from forcibly prying it open. It also cuts off power to protect the electricity meter body if the control box is opened. Additionally, it is equipped with sensors and wireless connectors to achieve anomaly detection and alarm.
It improves the safety of electricity meter use, prevents electricity theft, promptly cuts off power and triggers alarms, and ensures stable connection and protection of the electricity meter.
Smart Images

Figure CN223870726U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of electricity meters, and in particular to an anti-theft electricity meter. Background Technology
[0002] An electricity meter, also known as a kilowatt-hour meter, is an instrument used to measure electrical energy. It measures various electrical quantities. With the increasing demand for electricity, some users resort to various methods of electricity theft to reduce or avoid their bills. This not only causes economic losses to power supply companies but may also affect grid quality and user safety. Anti-theft electricity meters operate on basic electrical principles, calculating user energy consumption by measuring current and voltage. They also use a built-in microprocessor to analyze the data and detect any illegal energy access. Once illegal activity is detected, the meter automatically cuts off power to prevent further theft and saves a detailed record of any unauthorized use. For example, a novel anti-theft single-phase electronic energy meter, as proposed in existing technology publication CN216485208U, includes a protective box. Mounting plates are fixed to both end walls of the protective box, and a meter is fixed to the inner rear wall of the protective box. A glass window is fixed to the outer front wall of the protective box at a position corresponding to the meter. A junction box is located at the bottom of the meter, and a sealing plate is connected to the outer front wall of the junction box via a hinge. An identification component is located at the bottom of the outer front wall of the sealing plate, and a locking component is located at the bottom of the outer rear wall of the sealing plate. However, most existing electronic meters are integrated inside a single box, making them easy to open for wire theft and reducing the security of the electronic meter. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides an anti-theft energy meter that can ensure stable connection, prevent electricity thieves from forcibly prying it open, and improve the security of electronic meter use.
[0004] This utility model discloses an anti-theft electricity meter, comprising an electricity meter body, a control box, a control component, a mounting component, and a magnetic fixing component. The electricity meter body is fixedly connected to the front end of the control box. The control component is installed inside the control box, and the mounting component is located at the rear of the control box. The magnetic fixing component is installed between the mounting component and the control box. A wiring component is installed inside the control box. The wiring component facilitates wiring, the mounting component is fixed in the usage position, and the control box is installed on the mounting component. The magnetic fixing component ensures connection and prevents electricity thieves from forcibly prying it open. The control component can cut off power to protect the electricity meter body if the control box is opened, thereby achieving the function of electricity theft protection.
[0005] Preferably, the control components include a controller, an alarm, and a wireless connector. The controller and alarm are installed on the left and right sides inside the control box, and the wireless connector is installed on the upper side inside the control box. The wireless connector enables the device to communicate wirelessly, and transmits information to the central control console in a timely manner after detecting an anomaly, so that the electrician can handle it in time. The controller can control the device, and the alarm can emit an alarm light to help the user discover it in time.
[0006] Preferably, the wiring components include a wiring block and a wire sleeve. The wiring block is installed inside the lower side of the control box, and the wire sleeve is installed on the lower side of the right outer wall of the control box. The wires are easily connected by passing through the wire sleeve and the wiring block, and the wire sleeve helps to protect the inside of the control box while preventing excess cables from being inserted.
[0007] Preferably, the mounting assembly includes a mounting backplate, two fixing plates, and two locking nuts. The mounting backplate is located behind the control box and has multiple mounting holes. Fixing plates are mounted at both the top and bottom of the mounting backplate, and fixing holes are also provided at both the top and bottom of the control box. The locking nuts pass through the fixing holes and are threadedly connected to the fixing plates. The multiple mounting holes on the mounting backplate facilitate fixing it to the desired position, making it suitable for different installation environments. The control box is then inserted into the mounting backplate, and the locking nuts are rotated to connect it to the fixing plates, thus installing the control box on the mounting backplate for convenient use.
[0008] Preferably, the magnetic fixing assembly includes two metal plates and an electromagnet. The two metal plates are installed at the end of the fixing plate away from the mounting back plate, and the electromagnet is installed on the upper inner wall of the control box at a position corresponding to the metal plates. After the control box is connected to the mounting back plate, the electromagnet is energized and attracts the metal plates, preventing thieves from unscrewing the locking nut to disassemble the control box and improving the anti-theft effect.
[0009] Preferably, it also includes a sensor, with the sensor installed at the lower end of the inner wall of the control box corresponding to the position of the metal plate; after installation, the metal plate blocks the sensor so that the device will not alarm. When unauthorized personnel forcibly dismantle the control box, the sensor will automatically activate and transmit information to the controller, thereby enabling timely alarm.
[0010] Preferably, it also includes multiple support columns, multiple rubber pads, and multiple threaded seats. Support columns are fixedly installed at the four corners of the rear wall of the mounting back plate, rubber pads are installed on the outer wall of the support columns, and multiple threaded seats are installed at the bottom of the control box. The support columns and rubber pads can make contact with the mounting surface after the mounting back plate is installed in the use position, which has a certain insulation effect and improves the friction. At the same time, the threaded seats at the bottom can install the bottom of the control box, improving the convenience of installation.
[0011] Compared with the prior art, the advantages of this utility model are as follows: the wiring component facilitates wiring, the installation component is fixed in the use position, the control box is installed on the installation component, the magnetic fixing component can ensure the connection and prevent electricity thieves from forcibly prying it open, and the control component can cut off the power to protect the main body of the electricity meter after the control box is opened, thereby achieving the function of electricity theft protection. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the lower three-dimensional structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the rear view structure of this utility model;
[0015] Figure 4 This is a schematic diagram of the internal structure of the control box of this utility model;
[0016] Figure 5 This is a partial cross-sectional structural schematic diagram of the present invention;
[0017] The following are labeled in the attached diagram: 1. Energy meter body; 2. Control box; 3. Terminal block; 4. Wire sleeve; 5. Controller; 6. Alarm; 7. Wireless connector; 8. Mounting back plate; 9. Mounting hole; 10. Support column; 11. Rubber pad; 12. Fixing plate; 13. Locking nut; 14. Metal plate; 15. Electromagnet; 16. Sensor; 17. Threaded seat. Detailed Implementation
[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0019] like Figures 1 to 5As shown, the main body 1 of the electricity meter is fixedly connected to the front end of the control box 2. The controller 5 and the alarm 6 are installed on the left and right sides inside the control box 2. The wireless connector 7 is installed on the upper side inside the control box 2. The wiring block 3 is installed on the lower side inside the control box 2. A wire sleeve 4 is installed on the lower side of the right outer wall of the control box 2. The mounting back plate 8 is located on the rear side of the control box 2. Multiple mounting holes 9 are opened on the mounting back plate 8. Fixing plates 12 are installed at the upper and lower ends of the mounting back plate 8. Fixing holes are opened at the upper and lower ends of the control box 2. The locking nut 13 passes through the fixing holes and is threadedly connected to the fixing plate 12. Two metal plates 14 are installed at the end of the fixing plate 12 away from the mounting back plate 8. Electromagnets 15 are installed on the upper inner wall of the control box 2 at the position corresponding to the metal plates 14. Sensors 16 are installed on the lower end of the inner wall of the control box 2 at the position corresponding to the metal plates 14. Support columns 10 are fixedly installed at the four corners of the rear wall of the mounting back plate 8. Rubber pads 11 are installed on the outer wall of the support columns 10. Multiple threaded seats 17 are installed at the bottom of the control box 2.
[0020] The wires are threaded through the cable sleeve 4 and connected via the connector 3 for easy connection. The cable sleeve 4 also protects the inside of the control box 2 and prevents excess cable from being inserted. Multiple mounting holes 9 on the mounting backplate 8 facilitate fixing it to the desired location, suitable for various installation environments. The control box 2 is then inserted into the mounting backplate 8, and the locking nut 13 is turned to connect it to the fixing plate 12. The control box 2 is then installed on the mounting backplate 8 for easy use. After the control box 2 is connected to the mounting backplate 8, the electromagnet 15 is energized and attracts the metal plate 14, preventing thieves from unscrewing the locking nut 13 to disassemble the control box 2, thus improving anti-theft effectiveness. After installation, the metal plate 14 blocks the sensor 16, preventing… The device will not alarm unless unauthorized personnel forcibly dismantle the control box 2. In this case, the sensor 16 will automatically activate and transmit the information to the controller 5, thus triggering an alarm in time. The support column 10 and rubber pad 11 ensure that the mounting back plate 8 can contact the mounting surface after being installed in the usage position, providing a certain degree of insulation and increasing friction. At the same time, the threaded seat 17 at the bottom allows for installation of the bottom of the control box 2, improving the convenience of installation. The wireless connector 7 enables the device to achieve wireless communication. After detecting an anomaly, the information is transmitted to the central control console in a timely manner, facilitating timely handling by electricians. The controller 5 can control the device, and the alarm 6 can emit alarm lights to help users discover the problem promptly.
[0021] like Figures 1 to 5As shown, this utility model discloses an anti-theft energy meter. During operation, the wire is passed through the wire sleeve 4 and connected via the terminal block 3 for easy connection. The wire sleeve 4 protects the inside of the control box 2 and prevents excess cable from entering. Multiple mounting holes 9 on the mounting back plate 8 facilitate fixing it to the usage position, making it suitable for various installation environments. Support columns 10 and rubber pads 11 ensure that the mounting back plate 8 contacts the mounting surface after installation, providing insulation and increasing friction. The control box 2 is then inserted into the mounting back plate 8, and the locking nut 13 is rotated to connect it to the fixing plate 12, thus installing the control box 2. After the control box 2 is connected to the mounting backplate 8, the electromagnet 15 is energized and attracted to the metal plate 14, preventing thieves from unscrewing the locking nut 13 to disassemble the control box 2. After installation, the metal plate 14 blocks the sensor 16, preventing the device from alarming. If unauthorized personnel forcibly disassemble the control box 2, the sensor 16 will automatically activate and transmit information to the controller 5. The wireless connector 7 enables the device to communicate wirelessly. After detecting an anomaly, the information is promptly transmitted to the central control console for timely handling by electricians. The controller 5 can control the device, and the alarm 6 can emit alarm lights to facilitate timely detection by users.
[0022] The controller 5, alarm 6, wireless connector 7, electromagnet 15, and sensor 16 of this anti-theft energy meter are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A theft-proof electricity meter, characterized in that, The device includes an electricity meter body (1), a control box (2), a control component, an installation component, and a magnetic fixing component. The electricity meter body (1) is fixedly connected to the front end of the control box (2). The control component is installed inside the control box (2). The installation component is located on the rear side of the control box (2). A magnetic fixing component is installed between the installation component and the control box (2). Wiring components are installed inside the control box (2). The mounting assembly includes a mounting back plate (8), two fixing plates (12) and two locking nuts (13). The mounting back plate (8) is located on the rear side of the control box (2). Multiple mounting holes (9) are provided on the mounting back plate (8). Fixing plates (12) are installed at the upper and lower ends of the mounting back plate (8). Fixing holes are provided at the upper and lower ends of the control box (2). The locking nuts (13) pass through the fixing holes and are threaded to the fixing plates (12). The magnetic fixing assembly includes two metal plates (14) and an electromagnet (15). The two metal plates (14) are installed on the end of the fixing plate (12) away from the mounting back plate (8). The electromagnet (15) is installed on the upper inner wall of the control box (2) at the position corresponding to the metal plates (14).
2. The anti-theft energy meter as described in claim 1, characterized in that, The control components include a controller (5), an alarm (6) and a wireless connector (7). The controller (5) and the alarm (6) are installed on the left and right sides inside the control box (2), and the wireless connector (7) is installed on the upper side inside the control box (2).
3. The anti-theft energy meter as described in claim 1, characterized in that, The wiring components include a wiring block (3) and a wire sleeve (4). The wiring block (3) is installed inside the lower side of the control box (2), and the wire sleeve (4) is installed on the lower side of the outer right side of the control box (2).
4. The anti-theft energy meter as described in claim 1, characterized in that, It also includes a sensor (16), which is installed at the position corresponding to the metal plate (14) on the lower end of the inner wall of the control box (2).
5. The anti-theft energy meter as described in claim 1, characterized in that, It also includes multiple support columns (10), multiple rubber pads (11) and multiple threaded seats (17). Support columns (10) are fixedly installed at the four corners of the back wall of the mounting plate (8). Rubber pads (11) are installed on the outer wall of the support columns (10). Multiple threaded seats (17) are installed at the bottom of the control box (2).
Citation Information
Patent Citations
Novel electricity larceny prevention type single-phase electronic watt-hour meter
CN216485208U