CN-224218801-U - Photovoltaic module welding detection device

Abstract

The application relates to a welding detection device for a photovoltaic module. The welding device comprises a sensing device, a disturbance device, an image processing device and a control device, wherein the sensing device is arranged on a photovoltaic module conveying path after a welding procedure, the disturbance device is used for applying physical disturbance to a welding area of the photovoltaic module under the condition that the sensing device detects the photovoltaic module, the disturbance device is connected with the sensing device, and the image processing device is used for collecting image information of the welding area after the disturbance is applied. By adopting the device, the welding detection accuracy of the photovoltaic module can be improved.

Inventors

• HUANG GUOPING
• SUN JUN

Assignees

• 通威太阳能(南通)有限公司

Dates

Publication Date

20260508

Application Date

20250428

Claims (10)

1. 1. A photovoltaic module welding detection device, characterized by comprising: A sensing device; the photovoltaic module conveying path is arranged after the welding process; A disturbance device for applying a physical disturbance to a welding area of the photovoltaic module in case the sensing device detects the photovoltaic module, the disturbance device being connected to the sensing device, and And the image processing equipment is used for acquiring the image information of the welding area after the disturbance is applied.
2. 2. The photovoltaic module welding inspection apparatus of claim 1, wherein the photovoltaic module is transported by a conveyor belt after welding, and wherein the disturbance device comprises a vibrating module attached below the conveyor belt.
3. 3. The welding inspection device of a photovoltaic module according to claim 2, wherein the vibration frequency of the vibration assembly is in the range of 10Hz to 50Hz.
4. 4. The photovoltaic module welding inspection device of claim 2, wherein the vibration module includes at least two vibration sources having different vibration transmission directions.
5. 5. The welding inspection apparatus of claim 2, wherein the vibration assembly includes at least two vibration sources having the same vibration transmission direction, and the vibration frequency and initial phase of each vibration source are the same.
6. 6. The photovoltaic module welding inspection apparatus of claim 2 wherein the sensing device comprises a pressure sensing device disposed below the conveyor belt.
7. 7. The photovoltaic module welding inspection apparatus of claim 1 wherein the perturbation device comprises a pneumatic module that applies a perturbation to the welding region by pneumatic jetting.
8. 8. The photovoltaic module welding inspection apparatus according to claim 7, wherein the pneumatic module includes a plurality of pneumatic nozzles, and wherein the respective air injection direction of each of the pneumatic nozzles varies in accordance with a positional variation of the photovoltaic module during the transfer.
9. 9. The photovoltaic module welding detection apparatus according to any one of claims 1 to 8, further comprising: And sorting the photovoltaic modules under the condition that the image information represents that the welding area has abnormal welding.
10. 10. The photovoltaic module welding inspection apparatus of claim 9, further comprising an alarm device that generates an alarm signal if the image information characterizes the welding region as having a welding anomaly; The sorting equipment is used for sorting the photovoltaic modules under the condition that the alarm signals are received.

Description

Photovoltaic module welding detection device Technical Field The application relates to the technical field of photovoltaics, in particular to a welding detection device for a photovoltaic module. Background With the gradual upgrade of the grid line technology of the photovoltaic module, the density of the grid lines in the photovoltaic module is increased, so that a current transmission path can be shortened, and the transverse resistance loss is reduced. However, the reduced pitch of the gate lines may cause a series of problems, for example, the reduced pitch of the gate lines may lead to a reduced area of the bonding area, uneven contact pressure distribution between the bonding pad and the gate lines, and easy to cause cold joint. In the prior art, because the number of welding spots for carrying out the false welding detection in the welding area is more, the false welding detection is generally carried out in the welding area of the photovoltaic module in a manual spot check mode, and some false welding spots are easy to be missed in detection, so that the problem of poor detection accuracy exists in the false welding detection through manual detection. Disclosure of utility model Accordingly, it is desirable to provide a photovoltaic module welding detection device capable of improving the accuracy of welding detection of photovoltaic modules. In a first aspect, the application provides a photovoltaic module welding detection device. Comprising the following steps: A sensing device; the photovoltaic module conveying path is arranged after the welding process; A disturbance device for applying a physical disturbance to a welding area of the photovoltaic module in case the sensing device detects the photovoltaic module, the disturbance device being connected to the sensing device, and And the image processing equipment is used for acquiring the image information of the welding area after the disturbance is applied. In one embodiment, the photovoltaic module is conveyed by a conveyor belt after welding, and the disturbance device comprises a vibration module fitted under the conveyor belt. In one embodiment, the vibration frequency of the vibration assembly is in the range of 10Hz-50Hz. In one embodiment, the vibration assembly includes at least two vibration sources having different vibration transmission directions. In one embodiment, the vibration assembly comprises at least two vibration sources with the same vibration transmission direction, and the vibration frequency and the initial phase of each vibration source are the same. In one embodiment, the sensing device comprises a pressure sensing device disposed below the conveyor belt. In one embodiment, the perturbation device comprises a pneumatic assembly that applies a perturbation to the weld zone by pneumatic jetting. In one embodiment, the pneumatic assembly comprises a plurality of pneumatic nozzles, and the respective air injection direction of each pneumatic nozzle changes along with the position change of the photovoltaic assembly in the conveying process. In one embodiment, the apparatus further comprises: And sorting the photovoltaic modules under the condition that the image information represents that the welding area has abnormal welding. In one embodiment, the welding system further comprises an alarm device for generating an alarm signal when the image information indicates that welding abnormality exists in the welding area; The sorting equipment is used for sorting the photovoltaic modules under the condition that the alarm signals are received. The photovoltaic module welding detection device is provided with the sensing equipment arranged on the photovoltaic module conveying path after the welding process, the conveying position of the photovoltaic module after the welding process can be monitored in real time to ensure the normal operation of the follow-up welding detection process, the disturbance equipment is provided, when the sensing equipment detects the photovoltaic module, the disturbance equipment can apply physical disturbance to the welding area of the photovoltaic module, so that the welding area can be fully covered by the applied physical disturbance, and the image processing equipment is provided, so that the image information of the welding area after the disturbance is applied can be collected, and the welding condition of the photovoltaic module is determined. Therefore, by adopting the welding detection device for the photovoltaic module, all welding spots of a welding area of the photovoltaic module can be ensured to be fully disturbed and covered under the condition of ensuring the accuracy of welding detection of the photovoltaic module. Drawings FIG. 1 is a schematic structural diagram of a photovoltaic module welding detection apparatus in one embodiment; FIG. 2 is a diagram of a position arrangement of a vibration assembly in one embodiment; FIG. 3 is a diagram of a position setting of a pressure sensi