Electric energy meter structure resistant to high-voltage static electricity

Abstract

The utility model relates to an electric energy meter structure resistant to high-voltage static electricity. According to the utility model, the purpose of resisting high-voltage static electricity can be achieved without considering a static electricity electrical gap in the electric energy meter, and the structure of the electric energy meter can be designed according to the minimum required volume so as to avoid increasing unnecessary cost; the electrostatic protection circuit is suitable for all types of electrostatic protection scenes.

Description

Technical Field

[0001] This utility model relates to the field of electrical instrumentation technology, specifically to a structure for an energy meter resistant to high-voltage static electricity. Background Technology

[0002] With the development of technology in the power industry, the application of various types of electricity meters is becoming increasingly widespread, and the operating environments of these meters are becoming more diverse and extreme. In some special environments, there is a high level of electrostatic discharge. High-voltage static electricity can fatally damage the electronic components inside the meter, causing it to malfunction. Furthermore, there is the risk of deliberately damaging the meter using high-voltage static electricity equipment.

[0003] The commonly used anti-static method is to attenuate electrostatic energy by increasing the electrical clearance to protect the electronic components of the instrument. When resisting low-voltage electrostatic discharge, the required electrical clearance is not large and has little impact on the instrument's structural design and PCB layout. However, when resisting high-voltage electrostatic discharge, the required electrical clearance is much larger, which leads to the need to increase the size of the instrument's housing by several times. This not only increases the cost but also creates the dilemma of not being able to install it on site. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a high-voltage electrostatic discharge (ESD) meter structure. This structure achieves ESD protection without requiring consideration of internal electrostatic clearances within the meter. The structure can be designed with the minimum necessary volume to avoid unnecessary costs and is suitable for all types of ESD protection scenarios.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-voltage static electricity resistant energy meter structure is characterized in that the energy meter structure includes a meter cover 1 and a meter bottom 2. A faceplate 3 is provided inside the meter cover 1. The faceplate 3 is adjacent to the lower surface of the meter cover 1 and covers all gaps connecting the meter cover 1 to other components inside the energy meter structure. The faceplate 3 is connected to a dedicated static electricity trace on a PCB board 8 inside the energy meter structure through a conductive element I 4. The dedicated static electricity trace is connected to the power grid through a conductive element II 5.

[0007] The gaps connecting the cover 1 to other components include, but are not limited to, the gaps at the junction of the cover 1 and the bottom 2, and the gaps between the button 5 and the cover 1. High voltage static electricity can usually enter the inside of the electricity meter through these gaps and damage the electricity meter.

[0008] The conductive element II 5 can be a wire or a hard needle.

[0009] Based on the above plan,

[0010] The faceplate 3 has a spliced ​​or bent structure and is adapted to the lower surface contour of the cover 1.

[0011] Based on the above plan,

[0012] The conductive element I 4 is an elastic conductive element.

[0013] The beneficial effects of the energy meter structure resistant to high voltage static electricity described in this utility model are as follows:

[0014] This invention achieves high-voltage static electricity protection without considering the internal electrostatic clearance of the electricity meter. The electricity meter structure can be designed with the minimum required volume to avoid unnecessary costs. This invention is applicable to all types of electrostatic protection scenarios. Attached Figure Description

[0015] The present invention includes the following figures:

[0016] Figure 1 The structure of this utility model Figure 1 .

[0017] Figure 2 The structure of this utility model Figure 2 .

[0018] In the diagram: 1. Watch cover; 2. Watch bottom; 3. Faceplate; 4. Conductive component I; 5. Button; 6. Power grid interface; 7. Conductive component II; 8. PCB board. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown, the anti-high voltage static electricity meter structure of this utility model includes a meter cover 1 and a meter base 2. A faceplate 3 is provided inside the meter cover 1, adjacent to the lower surface of the meter cover 1. The faceplate 3 covers all gaps connecting the meter cover 1 to other components within the meter structure. Specifically, on the lower surface of the meter cover 1, the gaps at the connection between the meter cover 1 and the meter base 2, and the gap between the button 5 and the meter cover 1, are all covered by the faceplate 3, which is treated by bending or splicing (e.g., ...). Figure 1 (as indicated by ① and ② in the text), thereby making the faceplate 3 closer to the static power source than the electronic components on the PCB, thus realizing the function of the faceplate conducting current, and then releasing the static energy to the power grid through the elastic conductive element 4 via the PCB trace path and conductive element II 7.

[0021] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A structure for an energy meter resistant to high-voltage static electricity, characterized in that, The energy meter structure includes a cover (1) and a bottom (2). The cover (1) has a faceplate (3) inside. The faceplate (3) is adjacent to the lower surface of the cover (1). The faceplate (3) covers all gaps between the cover (1) and other components inside the energy meter structure. The faceplate (3) is connected to a dedicated electrostatic trace on the PCB board (8) inside the energy meter structure through a conductive element I (4). The dedicated electrostatic trace is connected to the power grid through a conductive element II (7).

2. The structure of an anti-high voltage static electricity meter as described in claim 1, characterized in that: The faceplate (3) is a spliced ​​or bent structure and is adapted to the lower surface contour of the cover (1).

3. The structure of an anti-high voltage static electricity meter as described in claim 1, characterized in that: The conductive element I (4) is an elastic conductive element.

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