Photovoltaic module xenon lamp aging test machine——

The establishment of equipment reliability models (or reliability diagrams) should strictly follow the following basic principles:

▼Each box in the reliability structure model is a functional block that can complete a certain function, and it should be an indispensable functional block for the equipment to complete the specified tasks. As long as any functional block in the diagram fails, it can cause equipment failure. Generally speaking, a functional block is a unit (i.e. an extension, subsystem, or component), but sometimes a functional block may also contain several units.

▼In the reliability structure model,Each box that fails is independent of each other. that is to say,Any failure of a box in the diagram should not result in the failure of another box.

The reliability structure model of the equipment is entirely based on the equipment itself and does not involve human factors.

▼The equipment reliability structure model mainly describes the division of equipment reliability functions,It should not involve other factors such as the complexity of each functional box, the severity of the working environment, and the length of working time.

Establishment of Reliability Structure Model

▼The establishment of a reliability structure model must be based on a thorough and meticulous analysis of the equipment,It is necessary to carefully analyze the working principle of the circuit, environmental conditions, and the impact of component failures on the equipment, as well as the interdependence between the functionality and reliability of the equipment and its constituent parts. Establish a reliability structure model according to the following steps and criteria.

2.The main features of the photovoltaic module xenon lamp aging test machine are:

▼Xenon lamp cooling water uses a refrigeration unit, and the water can be recycled, reducing equipment operation and maintenance costs.

▼Sample rack, sample rack1r/minThe speed rotates around the light source, and a blackboard thermometer is installed on the sample holderBPTOr black standard thermometerBST.

▼Timing device:In order to record the working time of each experiment, the equipment is equipped with a timer on the operation panel, which can control the equipment time. When the timer ends, the equipment will automatically shut down.

▼Ventilation and cooling device: The temperature ventilation and cooling system of the test chamber is automatically controlled by a temperature controller.

▼Rain system: The rain system of the equipment consists of components such as water pump, time relay, nozzle, etc., and the spraying cycle can be adjusted.

▼The control blackboard thermometer adopts wireless transmission technology, effectively improving the control accuracy.

▼Using fiber optic transmission to measure the radiation intensity of xenon lamps to avoid measurement errors caused by temperature.

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