Electric meter based on STM32

By introducing a clamping component into the meter, and using magnetic blocks and wing bolts, the meter can be quickly installed in the circuit box, solving the problem of complex installation in the prior art and improving installation efficiency and meter stability.

CN224216763UActive Publication Date: 2026-05-08JIANGSU LIYANG ELECTRONIC INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU LIYANG ELECTRONIC INSTR CO LTD
Filing Date
2025-05-07
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

When installing and replacing existing STM32-based meters in a circuit box, the tools are prone to interference with other components, making installation complex and difficult, especially when operation is restricted in confined spaces.

Method used

An STM32-based electricity meter was designed, which uses a clamping assembly for quick installation. The clamping assembly includes a fixing plate, a magnetic block, a clamping block, and a wing bolt. The magnetic block is fixed in the circuit box, and the clamping block is securely clamped by springs and inserts. The wing bolt can be adjusted to accommodate electricity meters of different sizes.

Benefits of technology

This technology enables quick installation and removal of the electricity meter within the circuit box, shortening installation time, improving work efficiency, reducing maintenance costs and difficulties, and ensuring stable operation of the electricity meter.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an STM32-based ammeter, and belongs to the technical field of power equipment. The device mainly comprises a circuit box, a containing cavity is formed in the circuit box, and multiple sets of partition plates are arranged in the containing cavity; the fixing part comprises a fixing plate, the side, close to the circuit box, of the fixing plate is provided with a shielding cover, and the side, away from the fixing plate, of the shielding cover is provided with a magnetic attraction block; the clamping assembly is arranged on the side, away from the shielding cover, of the fixing plate, an electric meter is installed in the clamping assembly, and an STM main control chip is arranged in the electric meter. According to the STM32-based electricity meter, the clamping assembly is arranged, so that the electricity meter is stably supported, the shaking or shifting phenomenon of the electricity meter in the operation process is effectively prevented, long-term stable operation of the electricity meter 3 is ensured, electricity meters of different sizes and specifications can be rapidly installed in the circuit box, the installation time is shortened, and the installation efficiency is improved. The working efficiency is improved, and the maintenance cost and the working difficulty are effectively reduced.
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Description

Technical Field

[0001] This application relates to the field of power equipment technology, specifically to STM32-based electricity meters. Background Technology

[0002] As a fundamental device for collecting electricity data, smart meters play a crucial role in the construction of smart grids. STM32-based meters utilize STM32 series microcontrollers (MCUs) as the core control unit to realize functions such as electricity metering, data acquisition, processing, display, and communication. They process the collected current and voltage data, calculate electricity consumption (e.g., kilowatt-hours), and display the data on an LCD screen.

[0003] For example, the patent with publication number CN214669243U discloses a meter cabinet that facilitates the replacement of electricity meters. The meter cabinet is equipped with a meter mounting base, which includes a base plate with a boss on the base plate. The upper end of the boss is equipped with a conductive plug for connecting to the electricity meter, which makes the installation and replacement of the electricity meter simple and convenient. Moreover, during the installation and replacement process, there is no need to cut off the user's power supply, so as not to cause inconvenience to the user's life.

[0004] In the aforementioned patent, the meter is designed with multiple mounting sections, allowing for quick installation and disassembly. However, due to the multiple bolt holes on the mounting base, the meter still requires alignment of the corresponding through holes with the bolt holes before installation. Furthermore, the limited internal space of existing circuit boxes restricts the use of commonly used installation tools such as screwdrivers and wrenches. During operation, these tools can easily interfere with other components within the circuit box, hindering proper tool application or limiting the direction of operation, further increasing the difficulty and complexity of installation. Therefore, it is necessary to provide a quickly detachable STM32-based meter to address these issues.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide an STM32-based electricity meter that can be quickly installed and removed from the circuit box.

[0007] The technical solution adopted by this application to solve its technical problem is as follows: an STM32-based electricity meter, including a circuit box, which has a receiving cavity and multiple sets of partitions; a fixing part, which includes a fixing plate, a shielding cover on the side of the fixing plate near the circuit box, and a magnetic block installed on the side of the shielding cover away from the fixing plate; and a clamping assembly, which is disposed on the side of the fixing plate away from the shielding cover, and the electricity meter is installed inside the clamping assembly, with an STM main control chip inside the electricity meter.

[0008] Furthermore, the clamping assembly includes a base plate mounted on the bottom of the fixing plate, and the base plate has a through mounting groove whose dimensions are adapted to the dimensions of the bottom of the meter.

[0009] Furthermore, multiple sets of wire clamps are installed at the bottom of the mounting slot.

[0010] Furthermore, two sets of upright plates are installed on the top of the fixing plate, a clamping block is provided on the top of the upright plate, two sets of insert blocks are provided on the bottom of the clamping block, an insertion hole is provided on the upright plate corresponding to the position of the insert block, and a spring is provided between the clamping block and the upright plate.

[0011] Furthermore, a wing bolt is provided between the upright plate and the fixed plate.

[0012] The beneficial effects of this application are: the STM32-based electricity meter provided by this application, by setting up a clamping component, allows electricity meters of different sizes and specifications to be quickly installed in the circuit box, shortening the installation time, improving work efficiency, and effectively reducing maintenance costs and work difficulty.

[0013] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the STM32-based electricity meter in this application;

[0017] Figure 2 for Figure 1 Installation diagram of the clamping component;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of the clamping component;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] The following are the labeling elements in the figure:

[0021] 1. Circuit box; 11. Receiving cavity; 12. Partition; 2. Fixing part; 21. Fixing plate; 22. Shielding cover; 3. Meter; 4. Clamping assembly; 41. Base plate; 411. Mounting groove; 42. Wire clamp; 43. Vertical plate; 44. Clamping block; 45. Insertion block; 46. Spring; 5. Wing bolt. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] like Figures 1-3 As shown, this application provides an STM32-based electricity meter, including a circuit box 1. The circuit box 1 is installed inside a computer room and is used to collect data on the electricity metering inside the computer room, process the collected current and voltage data, and calculate the electricity consumption. The circuit box 1 has a receiving cavity 11, and multiple sets of partitions 12 are set inside the receiving cavity 11. The partitions 12 divide the receiving cavity 11 into multiple receiving spaces. A fixing part 2 is installed in the topmost receiving space, and an electricity meter 3 is installed on the fixing part 2. The electricity meter 3 has an STM32 main control chip inside. This STM32 chip has a high-performance ADC, which can realize high-precision electricity metering and meet the requirements of electricity metering accuracy in different occasions.

[0025] The fixing part 2 includes a fixing plate 21. A shielding cover 22 is provided on the side of the fixing plate 21 near the circuit box 1. The shielding cover 22 is made of nickel-plated steel. At the same time, a magnetic block (not shown in the figure) is fixedly installed on the side of the shielding cover 22 away from the fixing plate 21. The magnetic block is attracted to the receiving cavity 11 at the top of the circuit box 1, so that the fixing plate 21 can be quickly and firmly installed in the receiving cavity 11 without the need for bolts, which simplifies the installation process and improves the installation efficiency.

[0026] Meanwhile, a clamping assembly 4 is provided on the other side of the fixing plate 21. The clamping assembly 4 includes a base plate 41, which is fixedly installed on the bottom of the fixing plate 21. A through mounting groove 411 is provided on the base plate 41. The size of the mounting groove 411 is adapted to the size of the bottom of the meter 3. When the meter 3 is installed, its bottom will extend into the mounting groove 411 and be fixed by the mounting groove 411, so that the meter 3 is stably supported and effectively prevents the meter 3 from shaking or shifting during operation, ensuring the long-term stable operation of the meter 3.

[0027] Meanwhile, multiple sets of wire clamps 42 are installed at the bottom of the mounting slot 411. These wire clamps 42 are suitable for workers to quickly connect the connecting lines to the meter 3, which shortens the connection time, improves installation efficiency, and makes the wiring layout more neat and orderly, facilitating subsequent maintenance and repair work.

[0028] like Figures 2-4 As shown, two sets of upright plates 43 are threadedly installed on the top of the fixed plate 21. The top of the upright plate 43 is provided with a clamping block 44. The clamping block 44 is suitable for contacting the two sides of the top of the meter 3. The clamping block 44 is made of rubber material, so that the clamping block 44 can fit tightly against the top contour of the meter 3, effectively dispersing the clamping force and providing reliable friction, preventing the meter 3 from being displaced due to vibration or external force during operation.

[0029] Meanwhile, two sets of insert blocks 45 are provided at the bottom of the clamping block 44, and a socket (not shown in the figure) is provided on the upright plate 43 at the position corresponding to the insert block 45. The size of the socket is adapted to the size of the insert block 45, so that the upright plate 43 can be adjusted adaptively according to the size of the meter 3. At the same time, a spring 46 is provided between the clamping block 44 and the upright plate 43. The spring 46 is sleeved on the outside of the insert block 45, and one end of the spring 46 is fixed to the clamping block 44, and the other end is fixed to the upright plate 43. This allows the clamping block 44 to quickly complete the clamping action after the meter 3 is inserted, thus improving the installation efficiency.

[0030] In order to enable quick adjustment when clamping the clamping assembly 4 with electricity meters 3 of different shapes and sizes, a wing bolt 5 is provided between the upright plate 43 and the fixed plate 21. Thus, when it is necessary to adjust the position of the clamping block 44, simply loosen the wing bolt 5 and the upright plate 43 can be rotated freely. When the appropriate installation position is reached, tighten the wing bolt 5 so that the clamping block 44 can better match the electricity meter 3.

[0031] In summary, by incorporating the clamping component 4, this device enables the rapid installation of electricity meters 3 of different sizes and specifications within the circuit box 1, thereby shortening installation time, improving work efficiency, and effectively reducing maintenance costs and work difficulty.

[0032] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electricity meter based on STM32, characterized in that: include: A circuit box (1) is provided with a receiving cavity (11), and multiple sets of partitions (12) are provided in the receiving cavity (11); The fixing part (2) includes a fixing plate (21), a shield (22) is provided on the side of the fixing plate (21) close to the circuit box (1), and a magnetic block is installed on the side of the shield (22) away from the fixing plate (21); A clamping assembly (4) is disposed on the side of the fixing plate (21) away from the shield (22). An electricity meter (3) is installed inside the clamping assembly (4), and an STM32 main control chip is disposed inside the electricity meter (3).

2. The STM32-based electricity meter according to claim 1, characterized in that: The clamping assembly (4) includes a base plate (41) which is mounted on the bottom of the fixing plate (21). The base plate (41) has a through mounting groove (411) which is adapted to the size of the bottom of the meter (3).

3. The STM32-based electricity meter according to claim 2, characterized in that: Multiple sets of wire clamps (42) are installed at the bottom of the mounting slot (411).

4. The STM32-based electricity meter according to claim 3, characterized in that: The top of the fixed plate (21) is equipped with two sets of upright plates (43), the top of the upright plate (43) is provided with a clamping block (44), the bottom of the clamping block (44) is provided with two sets of insert blocks (45), the upright plate (43) is provided with an insertion hole corresponding to the position of the insert block (45), and a spring (46) is provided between the clamping block (44) and the upright plate (43).

5. The STM32-based electricity meter according to claim 4, characterized in that: A wing bolt (5) is provided between the upright plate (43) and the fixed plate (21).