An electric energy meter detection tool
By designing a power meter testing fixture that integrates infrared communication and optical pulse acquisition, the problem of lengthy processes caused by separate testing in existing technologies has been solved, and efficient signal detection has been achieved.
Patent Information
- Application Number
- CN202521685624.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-08
AI Technical Summary
The detection of infrared communication function and the acquisition of light pulses in existing electricity meters need to be carried out separately, resulting in an excessively long production process.
Design a power meter testing fixture that integrates infrared communication detection and light pulse acquisition functions. The detection head is matched with the infrared communication port of the power meter and attracted by a magnet. Combined with a photoelectric acquisition board, signal detection is achieved.
It enables one-time detection with infrared communication and light pulse acquisition, reducing production processes and improving detection efficiency.
Smart Images
Figure CN224682391U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a testing fixture used in the production process of electricity meters. Background Technology
[0002] In order to enable infrared communication, an infrared communication port is usually reserved on the meter. The electricity meter needs to test the infrared communication function. In addition, during the calibration of the electricity meter, the optical acquisition module needs to collect the light pulses in the meter to judge the error. Thus, the electricity meter needs to perform pulse acquisition and infrared communication testing in multiple steps, which makes the process too long. Summary of the Invention
[0003] In order to overcome the above-mentioned shortcomings in the prior art, this utility model provides a power meter testing fixture that integrates power meter pulse acquisition and infrared communication detection.
[0004] This utility model is achieved through the following technical solution: A testing fixture for an electricity meter is characterized by comprising a columnar testing head, the shape of which is configured to match the infrared communication port of the electricity meter. One side of the testing head facing the electricity meter is designated as the testing surface, and the other side as the back surface. The testing surface has an infrared receiving window, an infrared transmitting window, and a magnet for attaching the testing head to the electricity meter. An infrared communication circuit board is disposed inside the testing head, with an infrared receiving head and an infrared transmitting head respectively positioned on the circuit board corresponding to the infrared receiving window and the infrared transmitting window. A photoelectric acquisition board extends outward from the side of the testing head, with a photoelectric acquisition head positioned on the photoelectric acquisition board facing the electricity meter. Wires from the photoelectric acquisition board and the infrared communication circuit board pass through the back surface and connect to the testing platform of the electricity meter.
[0005] Preferably, a positioning post is provided on one side of the detection surface to match the notch on the infrared communication port of the energy meter, and elastic cards are provided on both sides of the detection head near the detection surface.
[0006] Preferably, the photoelectric acquisition board is covered with a plastic shell.
[0007] Preferably, the detection head includes a detection bottom shell and a detection top shell that are interlocked together.
[0008] Preferably, the magnets are granular, and two granules are provided.
[0009] In this application, the detection head is matched to the infrared communication port on the electricity meter and is directly attached to the electricity meter by a magnet. The detection head is also equipped with a photoelectric acquisition board, and the detection head can directly detect the infrared communication function and collect light pulses.
[0010] The beneficial effects of this utility model are as follows: This utility model realizes the detection of infrared communication function and the acquisition of light pulse through the detection head, realizing the signal detection of two functions at one time, reducing the production process and improving efficiency. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is a schematic diagram of the structure of an electricity meter. Detailed Implementation
[0013] The utility model will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0014] like Figure 2 As shown, the electricity meter 11 has a reserved infrared communication port 12 for infrared communication and detection. Figure 1 As shown, a power meter testing fixture includes a cylindrical testing head 8, the shape of which is designed to match the infrared communication port of the power meter. The testing head includes a bottom testing shell and a top testing shell that are interlocked together. The side of the testing head facing the power meter is designated as the testing surface 2, and the other side is designated as the back surface. The testing surface has an infrared receiving window 3, an infrared emitting window 4, and a magnet 1 for attaching the testing head to the power meter. An infrared communication circuit board is located inside the testing head, with an infrared receiving head and an infrared emitting head respectively positioned on the circuit board corresponding to the infrared receiving window and the infrared emitting window. The magnet 1 is granular, with two magnets provided, allowing the testing head to be directly attached to the power meter. To ensure that the infrared receiving head and infrared emitting head on the testing head are perfectly aligned with their positions on the power meter, a positioning post 5 protrudes from one side of the testing surface to match the notch on the infrared communication port of the power meter. This ensures direct alignment during attachment and prevents deflection, guaranteeing a perfect correspondence between the infrared receiving and emitting positions.
[0015] This application not only enables infrared communication detection but also the acquisition of optical pulse signals, facilitating the calibration of electricity meters. In this application, a photoelectric acquisition board 6 extends outward directly from the side of the detection head. A photoelectric acquisition head 7 is positioned on the photoelectric acquisition board facing the electricity meter, and the photoelectric acquisition head 7 is aligned with the optical pulses inside the electricity meter to acquire signals. The wires of the photoelectric acquisition board and the infrared communication circuit board pass through the back of the detection head and connect to the testing platform of the electricity meter.
[0016] In order to ensure that the detection head is attached to the energy meter without loosening, elastic clips 10 are provided on both sides of the detection head near the detection surface. The elastic clips 10 ensure that the detection head is simultaneously tensioned within the infrared communication port when it is attached, preventing loosening or displacement, and further ensuring the one-to-one correspondence of the infrared transmitting and receiving positions.
[0017] The photoelectric acquisition board is covered with a plastic shell, which can effectively prevent dust and avoid external signal interference.
[0018] In this application, the detection head 8 is matched to the infrared communication port on the electricity meter, and its position will not become loose, ensuring a one-to-one correspondence between the detection fixture and the infrared transceiver on the electricity meter. This application uses a magnet to directly attach to the electricity meter, and the detection head is also equipped with a photoelectric acquisition board, allowing the detection head to directly detect the infrared communication function and collect light pulses.
Claims
1. A testing fixture for electricity meters, characterized in that: The device includes a columnar detection head, the shape of which is designed to match the infrared communication port of the electricity meter. The detection head faces one side of the electricity meter as the detection surface, and the other side is the back surface. The detection surface has an infrared receiving window, an infrared transmitting window, and a magnet to attract the detection head onto the electricity meter. An infrared communication circuit board is installed inside the detection head. An infrared receiving head and an infrared transmitting head are respectively installed on the infrared communication circuit board corresponding to the infrared receiving window and the infrared transmitting window. A photoelectric acquisition board extends outward from the side of the detection head. A photoelectric acquisition head is installed on the photoelectric acquisition board facing the electricity meter. The wires of the photoelectric acquisition board and the infrared communication circuit board pass through the back surface and are connected to the detection platform of the electricity meter.
2. The energy meter testing fixture according to claim 1, characterized in that: The detection surface has a protruding positioning post on one side that matches the notch on the infrared communication port of the power meter, and the detection head has elastic cards on both sides near the detection surface.
3. The energy meter testing fixture according to claim 2, characterized in that: The photoelectric acquisition board is covered with a plastic shell.
4. The energy meter testing fixture according to claim 3, characterized in that: The detection head includes a detection bottom shell and a detection top shell that are interlocked together.
5. The energy meter testing fixture according to claim 4, characterized in that: The magnets are granular, and two granules are provided.