Solar battery pack

Abstract

The invention discloses a solar battery pack. The solar battery pack consists of a plurality of solar battery units and comprises a plurality of normally open electronic switches, wherein each solar battery unit is connected in parallel with the corresponding electronic switch; each normally open electronic switch comprises at least one controllable electronic valve piece; and each electronic valve piece comprises a normally open switch element, a sensor and a control valve. The normally open switch elements can be zero-crossing intelligent electronic switches. By using the structure, the solar battery pack has the advantages that: 1, a junction box is removed, so that cost is greatly lowered; 2, in an abnormal state, the intelligent electronic switches are used, and heating and loss are avoided, so that safety is improved, and the power generating loss of a solar component is reduced; and 3, the complexity of a component is reduced, and only wiring ports are required to be matched with the component, so that the heat radiating efficiency and performance of the component are improved.

Description

technical field [0001] The invention relates to a solar battery pack. Background technique [0002] The current structure of solar modules is as attached figure 2 As shown, once there is an abnormality inside the battery module at the position corresponding to a certain diode, the diode will act as a bypass. At this time, the solar cell corresponding to this position will not work. The problem brought about by this is that if 10% of the solar cells are damaged , the other 90% will also be bypassed to waste the discharge capacity of the panel. [0003] Due to the nature of the diode, the diode may have a leakage current problem when the battery panel is working normally. [0004] In addition, due to the large internal resistance of bypass traditional bypass diodes, when the corresponding bypassed battery is abnormal, when a large current needs to be conducted in the diode, the diode will generate huge heat, which will generate two A problem is that the heat loss of the dio...

AI Technical Summary

Problems solved by technology

[0005] In order to consider this problem, traditional components need to specially design the junction box used by the diode. The appearance of the junction box increases the complexity of the solar module, and at the same time leads to the decline of the heat dissipation performance of the battery module and the complexity of the structure.

This will inevitably lead to an increase in costs

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