Photovoltaic junction box providing quick heat dissipation

Patent metadata

Field	Value
Publication number	US-10218308-B2
Application number	US-201715793122-A
Country	US
Kind code	B2
Filing date	Oct 25, 2017
Priority date	Oct 25, 2016
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

A photovoltaic junction box comprises a box body formed of a single integrally-molded part having a housing portion defining a receiving chamber and a packaging portion having a first packaging portion located inside the receiving chamber and a second packaging portion located outside the receiving chamber, a plurality of conductive terminals positioned along the box body and at least one diode chip disposed in a portion of the box body outside of the receiving chamber.

First claim

What is claimed is:

1. A photovoltaic junction box, comprising:
a box body is a single integrally-molded part having a housing portion defining a receiving chamber and a packaging portion having a first packaging portion located inside the receiving chamber and a second packaging portion located outside the receiving chamber;
a plurality of conductive terminals positioned along the box body; and
at least one diode chip disposed in a portion of the box body outside of the receiving chamber.

2. The photovoltaic junction box of claim 1 , wherein the at least one diode chip is disposed in the second packaging portion.

3. The photovoltaic junction box of claim 2 , wherein the at least one diode chip has a first electrode electrically connected to a first conductive terminal via a wire and a second electrode directly electrically connected to a second conductive terminal adjacent to the first conductive terminal.

4. The photovoltaic junction box of claim 3 , wherein the second electrode is adapted to be soldered directly to a surface of the second conductive terminal.

5. The photovoltaic junction box of claim 1 , wherein each conductive terminal of the plurality of conductive terminals has a first portion disposed in the packaging portion of the box body and a second portion exposed in the receiving chamber.

6. The photovoltaic junction box of claim 5 , wherein a first conductive terminal disposed at a first end of the photovoltaic junction box adjacent to a first wire has a first electrical connection portion disposed on the second portion of the first conductive terminal and adapted to be electrically connected to the first wire.

7. The photovoltaic junction box of claim 6 , wherein a second conductive terminal disposed at a second end of the photovoltaic junction box opposite the first end adjacent to a second wire has a second electrical connection portion disposed on the second portion of the second conductive terminal and adapted to be electrically connected to the second wire.

8. The photovoltaic junction box of claim 7 , wherein each conductive terminal has a third electrical connection portion disposed on the second portion of the conductive terminal and adapted to be electrically connected.

9. The photovoltaic junction box of claim 1 , wherein the box body includes a housing defining the receiving chamber and a package assembled with the housing.

10. The photovoltaic junction box of claim 9 , wherein the at least one diode chip is disposed in the package.

11. The photovoltaic junction box of claim 10 , wherein the package has a first portion disposed in the receiving chamber and a second portion located outside the receiving chamber, the at least one diode chip disposed in the second portion of the package.

12. The photovoltaic junction box of claim 11 , wherein the at least one diode chip has a first electrode electrically connected to a first conductive terminal via a wire and a second electrode directly electrically connected to a second conductive terminal adjacent to the first conductive terminal.

13. The photovoltaic junction box of claim 12 , wherein the second electrode is adapted to be soldered directly to a surface of the second conductive terminal.

14. The photovoltaic junction box of claim 10 , wherein each conductive terminal of the plurality of conductive terminals has a first portion disposed in the package and a second portion exposed in the receiving chamber.

15. The photovoltaic junction box of claim 14 , wherein a first conductive terminal disposed at a first end of the photovoltaic junction box has a first electrical connection portion disposed on the second portion of the first conductive terminal and adapted to be electrically connected to a first wire.

16. The photovoltaic junction box of claim 15 , wherein a second conductive terminal disposed at a second end of the photovoltaic junction box opposite the first end has a second electrical connection portion disposed on the second portion of the second conductive terminal and adapted to be electrically connected to a second wire.

17. The photovoltaic junction box of claim 16 , wherein each conductive terminal has a third electrical connection portion disposed on the second portion of the conductive terminal and adapted to be electrically connected.

18. The photovoltaic junction box of claim 1 , further comprising a cover adapted to be mounted on an opening of the receiving chamber.

19. The photovoltaic junction box of claim 18 , wherein one of the box body and the cover has a resilient snap and the other of the box body and the cover has a recess, the resilient snap engaging the recess to lock the cover on the box body.

20. The photovoltaic junction box of claim 1 , wherein the box body is molded from an injection molding material.

21. The photovoltaic junction box of claim 20 , wherein each of the plurality of conductive terminals has a first portion disposed in the box body and a second portion not disposed in the box body.

22. The photovoltaic junction box of claim 21 , wherein the first portion of each of the conductive terminals has a plurality of passageways extending through the first portion, a portion of the box body extends through the passageways to secure the conductive terminals to the box body.

Assignees

• Tyco Electronics Shanghai Co Ltd
• Tyco Electronics Holdings Bermuda No 7 Ltd

Inventors

• Ko Shih Ying
• Zhong Yuan
• Zhang Zhenhua

Classifications

• H02S40/34

  comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes · CPC title

• H02G3/16

  structurally associated with support for line-connecting terminals within the box · CPC title

• H02G3/14

  Fastening of cover or lid to box · CPC title

• H02S40/345 Primary

  with cooling means associated with the electrical connection means, e.g. cooling means associated with or applied to the junction box (cooling means for PV cells H10F77/63, for PV modules H02S40/42) · CPC title

• H02G3/081 Primary

  Bases, casings or covers · CPC title