Electronic component housing with heat sink

Patent metadata

Field	Value
Publication number	US-9635783-B2
Application number	US-201213436723-A
Country	US
Kind code	B2
Filing date	Mar 30, 2012
Priority date	Mar 30, 2012
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

A photovoltaic assembly for converting solar radiation to electrical energy is described. The photovoltaic assembly includes a photovoltaic module and an electronic component housing. The photovoltaic module has a frame, a laminate, a plurality of solar cells and a backsheet. The electronic component housing has an upper section to couple to the backsheet, a middle section and a lower section for enclosing electronic components. The electronic components can include a microinverter or electronics for a junction box. The middle section can have a heat sink in thermal communication with the electronic component and an opening. The opening can be a plurality of openings having a plurality of air fins distributed therein, or can be a diagonal or curved structure. The opening can permit fluid communication between the heat sink and an ambient environment. The upper section and/or the aforementioned air fins can also be coupled to the backsheet via a heat conductive adhesive.

First claim

What is claimed is:

1. A photovoltaic assembly comprising:
a photovoltaic module having a front side that faces the sun during normal operation and a back side opposite the front side, the photovoltaic module comprising:
a frame of the photovoltaic module;
a plurality of solar cells on the front side disposed within the photovoltaic module; and
a backsheet on the back side of the photovoltaic module; and

an electronic component housing comprising:
an upper portion coupled to the backsheet of the photovoltaic module;
a lower portion enclosing an electronic component; and
a middle portion comprising:
a heat sink in thermal communication with the electronic component, the heat sink disposed between the backsheet and the electronic component; and
an opening in the electronic component housing between the upper portion and lower portion, the opening permitting fluid communication between the heat sink and an ambient environment.

2. The photovoltaic assembly of claim 1 , wherein the electronic component comprises a microinverter for converting direct current generated from the solar module into alternating current and outputting alternating current.

3. The photovoltaic assembly of claim 1 , wherein the electronic component comprises an electronic junction box.

4. The photovoltaic assembly of claim 1 further comprising a heat conductive adhesive between the upper portion of the electronic component housing and the backsheet.

5. The photovoltaic assembly of claim 1 , wherein the electronic component is distributed within the middle portion of the electronic component housing.

6. The photovoltaic assembly of claim 1 further comprising a plurality air fins distributed within the opening in the electronic component housing.

7. The photovoltaic assembly of claim 1 , wherein the electronic component comprises an electronic DC to DC optimizer.

8. The photovoltaic assembly of claim 7 further comprising a plurality of air fins distributed within the plurality of openings.

9. The photovoltaic assembly of claim 1 , wherein the electronic component housing comprises aluminum or a heat dissipating polymer.

10. The photovoltaic assembly of claim 1 , wherein the backsheet of the photovoltaic module comprises a glass or a plastic polymer.

11. The photovoltaic assembly of claim 1 , wherein the photovoltaic module comprises a photovoltaic concentrator.

12. A photovoltaic assembly comprising:
a photovoltaic module having a front side that faces the sun during normal operation and a back side opposite the front side, the photovoltaic module comprising:
a plurality of solar cells on the front side disposed within the photovoltaic module; and
a backsheet on the back side of the photovoltaic module; and

an electronic component housing comprising:
an upper portion coupled to the backsheet of the photovoltaic module;
a lower portion enclosing an electronic component; and
a middle portion comprising:
a heat sink in thermal communication with the electronic component, the heat sink disposed between the backsheet and the electronic component; and
an opening in the housing originating from the lower portion and ending in between the upper portion and lower portion, the opening permitting fluid communication between the heat sink and an ambient environment.

13. The photovoltaic assembly of claim 12 further comprising a heat conductive adhesive between the upper portion of the electronic component housing and the backsheet.

14. The photovoltaic assembly of claim 12 further comprising a plurality of air fins distributed within the opening in the housing.

15. The photovoltaic assembly of claim 12 , wherein the opening in the housing originating from the lower portion and ending in between the upper portion and lower portion of the electronic component housing comprises a plurality openings.

16. The photovoltaic assembly of claim 15 further comprising a plurality of air fins distributed within the plurality of openings.

17. A photovoltaic assembly comprising:
a photovoltaic module having a front side that faces the sun during normal operation and a back side opposite the front side, the photovoltaic module comprising:
a frame of the photovoltaic module;
a plurality of solar cells on the front side disposed within the photovoltaic module; and
a backsheet on the back side of the photovoltaic module; and

an electronic component housing comprising:
a lower portion enclosing an electronic component;
an upper portion comprising an L-shaped structure extending from the lower portion and bending inward to couple to the backsheet of the photovoltaic module; and
a middle portion comprising:
a heat sink in thermal communication with the electronic component, the heat sink disposed between the backsheet and the electronic component;
an opening in the housing between the upper portion and lower portion, the opening permitting fluid communication between the heat sink and an ambient environment; and
a plurality of air fins extending from the lower portion to contact the backsheet between the L-shaped structure allowing heat transfer from the backsheet to the heat sink.

18. The electronic device of claim 17 further comprising a heat conductive adhesive between the upper portion of the electronic component housing and the backsheet.

19. The photovoltaic assembly of claim 17 , wherein the opening in the electronic component housing comprises a plurality of openings in the electronic component housing.

20. The photovoltaic assembly of claim 17 , wherein the upper portion comprising the L-shaped structure extending from the lower portion and bending inward comprises an L-shaped structure extending from the lower portion and bending outward to couple to the backsheet of the photovoltaic module.

21. The photovoltaic assembly of claim 1 , wherein the heat sink comprises a base portion proximate the lower portion, wherein the opening is disposed between the upper portion and the base portion of the heat sink.

22. The photovoltaic assembly of claim 1 , wherein the opening is disposed between the backsheet and the electronic component.

23. The photovoltaic assembly of claim 1 , wherein the entire heat sink is disposed between the backsheet and the electronic component.

24. The photovoltaic assembly of claim 1 , wherein the heat sink has a lower side facing the electronic component and an upper side opposite the lower side, wherein the entire electronic component is disposed below the lower side of the heat sink.

Assignees

• Kinyon Zachary
• Gannon John
• Mckibben Nick
• Sunpower Corp

Inventors

• Kinyon Zachary
• Gannon John
• Mckibben Nick

Classifications

• H01L31/024

  Electricity · mapped topic

• H01L31/049

  Electricity · mapped topic

• H02S40/345

  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

• H05K7/2039 Primary

  characterised by the heat transfer by conduction from the heat generating element to a dissipating body (arrangements for increasing/decreasing heat-transfer, e.g. fins details, F28F13/00) · CPC title

• Y02E10/50

  Photovoltaic [PV] energy · CPC title