Pluggable near-infrared light conversion head for electricity meter

Abstract

The utility model discloses a plug-in near-infrared light conversion head for an ammeter. The plug-in near-infrared light conversion head comprises a housing, a data line, a communication PCB box, a USB-A joint, a metal column, an infrared emission LED lamp and an infrared reception LED lamp. The data line internally comprises four strands of leads, one ends of the four strands of leads are respectively welded with positive and negative electrode pins of the infrared emission LED lamp and the infrared receiving LED lamp, the other ends of the four strands of leads are connected with the communication PCB box and the USB-A connector, and the PCB box is internally connected with an electric energy meter PCB; a fixing device is arranged on the shell, and two metal columns are assembled in the fixing device; the electric energy meter housing is provided with a fixing hole, and the fixing hole is matched with the metal column. The beneficial effects of the utility model are that the near-infrared light conversion head cancels a conventional magnetic attraction fixing mode, employs the two metal columns on the plastic housing to cooperate with the two open holes on the ammeter cover, and fixes the infrared light conversion head on the ammeter which is not equipped with the magnetic attraction ammeter cover in a close-fitting mode, thereby achieving the testing of near-infrared communication in the production process, and improving the testing efficiency. And the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of electric meter testing devices, in particular to a plug-and-play near-infrared optical head for an electric meter. Background Art

[0002] In the production process of existing American standard round meters, for the commonly used magnetic near-infrared optical head, it needs to cooperate with an infrared suction cup on the outer shell for data collection. However, since the outer transparent shell needs to be installed by rotating snap fasteners, it causes time cost and labor cost for the production line.

[0003] Currently, the commonly adopted solution is to make a fixture of the same size as the meter cover, and use the fixture to fix the existing infrared optical head together with the fixture on the meter calibration table. It is relatively cumbersome to use and the tooling cost is relatively high. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above technical defects and propose a plug-and-play near-infrared optical head for an electric meter. It changes the conventional magnetic fixation method, realizes the purpose of quickly testing near-infrared communication, and improves production efficiency.

[0005] The technical solution adopted by the utility model to achieve its technical purpose is: a plug-and-play near-infrared optical head for an electric meter, including a housing, a data cable, a communication PCB box, a USB-A connector, metal posts, an infrared transmitting LED lamp, and an infrared receiving LED lamp;

[0006] The data cable includes four strands of wires. One end is respectively welded to the positive and negative pin feet of the infrared transmitting LED lamp and the infrared receiving LED lamp, and the other end is connected to the communication PCB box and the USB-A connector. The PCB box is internally connected with an electric energy meter PCB circuit board;

[0007] The housing is provided with a fixing device, and two metal posts are assembled in the fixing device; the electric meter housing is provided with fixing holes, and the fixing holes cooperate with the metal posts.

[0008] Preferably, the fixing device is two blind holes, and the metal posts are connected in the blind holes.

[0009] Preferably, the housing is a plastic housing.

[0010] The beneficial effect of the utility model is: this near-infrared optical head cancels the conventional magnetic fixation method, adopts two metal posts on the plastic housing, and cooperates with two openings on the meter cover. Through a tight-fitting method, the infrared optical head is fixed on the electric meter without an assembled magnetic cover, thereby realizing the testing of near-infrared communication during the production process and improving production efficiency. Description of the Drawings

[0011] Figure 1This is a schematic diagram of the overall structure of the present utility model;

[0012] Figure 2 This is a side view of the housing and data cable structure of the present utility model;

[0013] Figure 3 This is a schematic diagram of the assembly relationship structure of the present utility model;

[0014] Figure 4 This is a schematic diagram of the assembly relationship structure of the present utility model from another angle;

[0015] Figure 5 This is a schematic diagram of the working state structure of the present utility model.

[0016] The markings in the figure are: 1. Housing; 2. Data cable; 3. Communication PCB box; 4. USB-A connector; 5. Metal post; 6. Infrared emission LED lamp; 7. Infrared reception LED lamp; 9. Fixing device;

[0017] 10. Fixing hole. Specific embodiments

[0018] The following further describes the present utility model in conjunction with the attached drawings and embodiments.

[0019] Embodiment 1

[0020] As Figures 1-5 shown: A near-infrared optical head for a pluggable electricity meter includes a housing 1, a data cable 2, a communication PCB box 3, a USB-A connector 4, a metal post 5, an infrared emission LED lamp 6, and an infrared reception LED lamp 7;

[0021] The data cable 2 includes four strands of wires. One end is respectively welded to the positive and negative pin feet of the infrared emission LED lamp 6 and the infrared reception LED lamp 7, and the other end is connected to the communication PCB box 3 and the USB-A connector 4. A power meter PCB circuit board is connected inside the PCB box 3;

[0022] The housing 1 is a plastic housing. Fixing devices 9 are provided on the housing 1. The fixing devices 9 are two blind holes, and the metal posts 5 are connected in the blind holes; Fixing holes 10 are provided on the power meter housing 8, and the fixing holes 10 cooperate with the metal posts 5.

[0023] The working principle and process of the present utility model are as follows:

[0024] During use, through the cooperation relationship between the metal column 5 and the electricity meter housing 8, the device is fixed on the electricity meter housing 8; at the same time, through the positional relationship of the holes on the plastic housing 1, after the device is fixed on the electricity meter, the infrared emission LED lamp 6 and the infrared reception LED lamp 7 are exactly aligned with the infrared communication lamp inside the electricity meter; the optical signal collected by the infrared LED lamp is converted into an electrical signal through the communication PCB box 3 connected to the data line 2. The communication PCB box 3 is internally connected to the electricity meter PCB circuit board to be tested, and then connected to the computer through the USB-A connector 4 to realize communication through this device.

[0025] The infrared optical head cancels the conventional magnetic attraction fixing method and adopts two metal columns 5 on the plastic housing 1 to cooperate with the fixing holes on the electricity meter housing 8. Through a tight fitting method, the infrared optical head is fixed on the electricity meter without an assembled magnetic attraction meter cover, so as to achieve the purpose of testing near-infrared communication during the production process and improve production efficiency.

Claims

1. A near-infrared optical head for a pluggable electricity meter, characterized in that: It includes a housing (1), a data line (2), a communication PCB box (3), a USB-A connector (4), metal posts (5), an infrared emission LED lamp (6), and an infrared reception LED lamp (7). The data line (2) includes four strands of wires. One end is respectively welded to the positive and negative pin feet of the infrared emission LED lamp (6) and the infrared reception LED lamp (7), and the other end is connected to the communication PCB box (3) and the USB-A connector (4). A watt-hour meter PCB circuit board is connected inside the PCB box (3). A fixing device (9) is provided on the housing (1), and two metal posts (5) are assembled inside the fixing device (9); fixing holes (10) are provided on the watt-hour meter housing (8), and the fixing holes (10) cooperate with the metal posts (5).

2. The near-infrared light changer for the plug-in electric meter according to claim 1, characterized in that: The fixing device (9) is two blind holes, and the metal posts (5) are connected inside the blind holes.

3. The pluggable near-infrared optical head for an electricity meter according to claim 1, characterized in that: The housing (1) is a plastic housing.

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