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Solar battery module

A technology for solar cell modules and battery packs, applied in the field of solar cells, can solve problems such as battery module performance and safety hazards, and achieve the effects of improving electrical performance and stability and reducing damage.

Inactive Publication Date: 2014-02-05
承启(上海)能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing bypass diodes have great hidden dangers in the performance and safety of battery components due to heat generation and heat dissipation.

Method used

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  • Solar battery module
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Embodiment Construction

[0018] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0019] Such as figure 1 with figure 2 As shown, a solar battery module includes a battery pack body, a battery protection circuit and a junction box. The battery protection circuit is arranged in the battery pack body or in the junction box, and a battery connection port is arranged in the junction box. electrical connection,

[0020] The battery protection circuit includes, charge pump, charge pump protector and photovoltaic cell bypass switch,

[0021] The charge pump is composed of a converter U1 and a capacitor C1, the power ground VSS terminal of the converter U1 is grounded, the pump capacitor CPC+ terminal of the converter U1 is connected to one end of the...

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Abstract

The invention discloses a solar battery module which comprises a battery pack body, a battery protective circuit and a junction box. The battery protective circuit is arranged in the battery pack body or the junction box, a battery junction port is formed in the junction box and electrically connected with the battery pack body, and the battery protective circuit comprises a charge pump, a charge pump protective device and a photovoltaic battery pack bypass switch. An MOS tube Q1, a capacitor C1 and an MOS tube Q2 in the battery protective circuit are powered on and powered off to enable the ratio of the powered-on time of the MOS tube Q1 in the battery protective circuit to the cutting-off time of the MOS tube Q1 in the battery protective circuit to be higher than 95%, the average power dissipation is much lower than that of a traditional bypass diode, the influences of the high temperature of a bypass tube on the solar battery module are reduced, and the aims of improving the electrical property and the safety performance of the solar battery module are accordingly achieved.

Description

technical field [0001] The present invention relates to the field of solar cells, in particular to a solar cell assembly. Background technique [0002] At present, with the intensification of environmental pollution, clean energy has attracted widespread attention from the society, and solar cells, as an important carrier of solar energy utilization, are widely used in daily life. Due to quality mismatch or part of the battery is blocked, the hot spot effect will cause the battery component to heat up and / or be damaged. To reduce the impact on the output power of the component due to the quality difference or the use environment, it is necessary to connect a bypass diode in parallel on multiple series-connected batteries. , so as to ensure the service life and output power of the solar cell. However, due to heat generation and heat dissipation problems of the existing bypass diodes, there are great hidden dangers in the performance and safety of the battery components. Co...

Claims

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Application Information

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IPC IPC(8): H01L31/0443
CPCY02E10/50H01L31/02021
Inventor 朱钰李天万
Owner 承启(上海)能源科技有限公司