SolarEdge Technologies has been granted a patent for a junction box component designed to be coupled to a power generator. The component includes bypass mechanisms to bypass malfunctioning or mismatched substrings of the generator, generating heat that is dissipated through a heat dissipation mechanism mounted on the cover of the junction box. The patent also includes a claim for a junction box with a base, bus bars, bypass mechanisms, and a cover with a heat dissipation mechanism in thermal contact with the bus bars. GlobalData’s report on SolarEdge Technologies gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on SolarEdge Technologies, Smart energy mgmt systems was a key innovation area identified from patents. SolarEdge Technologies's grant share as of September 2023 was 47%. Grant share is based on the ratio of number of grants to total number of patents.

Junction box with bypass mechanisms and heat dissipation mechanism

Source: United States Patent and Trademark Office (USPTO). Credit: SolarEdge Technologies Inc

A recently granted patent (Publication Number: US11777444B2) describes a new junction box design for power generators, such as photovoltaic generators. The junction box includes a base with multiple bus bars and at least one bypass mechanism that is coupled between two bus bars. A cover is mounted over the base and includes power converters to convert DC power from the generator to AC power or DC power with a different voltage.

One notable feature of the junction box is a heat dissipation mechanism mounted on the cover. This mechanism is in thermal contact with the bus bars when the cover is mounted, helping to dissipate heat generated during operation. The patent also mentions that the bus bars may include heat spreading parts designed to conduct heat in different directions, enhancing the overall heat dissipation capabilities of the junction box.

The junction box also includes connectors that can be connected to conductors carrying current from the power generator. These connectors are electrically coupled to the bus bars, ensuring efficient power transmission within the junction box.

The bypass mechanism in the junction box can include diodes, and there can be multiple bypass mechanisms that are serially coupled. Additionally, an additional bypass mechanism can be disposed in parallel to two or more bypass mechanisms, providing redundancy and improving the overall performance of the junction box.

The cover of the junction box may also include a communication device that is communicatively coupled to controllers. These controllers can be used to control various components within the junction box, enhancing its functionality and allowing for remote monitoring and management.

To ensure effective heat dissipation, the heat dissipation mechanism in the cover can include a fan, a cooling agent, a cryogenic cooler, or other materials such as thermal grease, thermal pads, thermal putty, thermal paste, or laminated Kapton® polyimide film.

Overall, this patented junction box design offers improved heat dissipation capabilities, efficient power transmission, and enhanced functionality through the use of power converters and communication devices.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.