Dual compressive connector

• US 9,391,385 B2
• Filed: 06/30/2014
• Issued: 07/12/2016
• Est. Priority Date: 05/22/2009
• Status: Active Grant

• Current Assignee: Solaredge Technologies Incorporated
• Original Assignee: Solaredge Technologies Incorporated
• Inventors: Shmukler, Vadim, Gershman, Israel
• Primary Examiner(s): NASRI, JAVAID H
• Application Number:
  US14/319,630
• Publication Number:
  US 20140306093A1
• Time in Patent Office: 743 Days
• Field of Search: 439/724, 439/439, 439/786, 439/787, 439/788, 439/835
• US Class Current: 1/1
• CPC Class Codes: H01L 31/02002 Arrangements for conducting electric current to or from the device in operations
• CPC Class Codes: H01L 31/0201 comprising specially adapted module bus-bar structures
• CPC Class Codes: H01R 13/2414 conductive elastomers
• CPC Class Codes: H01R 13/2435 with opposite contact points, e.g. C beam
• CPC Class Codes: H02S 40/34 comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
• CPC Class Codes: Y02E 10/50 Photovoltaic [PV] energy
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing
• CPC Class Codes: Y10T 29/49204 Contact or terminal manufacturing

Abstract

An electrical connector for electrically connecting multiple photovoltaic bus bars. A casing includes first and second opposing walls. An elastic strip is bent into a bent elastic strip with a first leg and a second leg. The bent elastic strip is disposed between the first and second walls of the casing with the first leg pressing against the first wall and the second leg pressing against the second wall. The bent elastic strip is configured to hold at least one of the photovoltaic bus bars between the first leg and the first wall and another of the photovoltaic bus bars between the second leg and the second wall. The bent elastic strip may be formed of resilient spring metal with a thickness and an elastic modulus. The thickness and/or the elastic modulus of the elastic strip is/are configured so that the bus bars are inserted without requiring a tool to open a space and so that the bus bars are removed from the connector without requiring a tool to break the electrical connection.

Claims

1. A photovoltaic panel, comprising:

a circuit board;

a wall; and

an electrical connector mounted to the wall and electrically connected to the circuit board, the electrical connector, comprising;

a casing, comprising a first casing wall and a second casing wall facing the first casing wall, the casing forming an opening to receive a first bus bar and a second bus bar; and

an elastic strip, comprising a first leg configured to hold the first bus bar against the first casing wall and a second leg configured to hold the second bus bar against the second casing wall.

2. The photovoltaic panel of claim 1, wherein the first leg comprises a protrusion configured to be inserted into and pass through a hole in the casing.

3. The photovoltaic panel of claim 1, wherein the casing comprises an electrical fixture extending through the wall.

4. The photovoltaic panel of claim 3, wherein the electrical fixture is on one a side of the casing and the opening is on the opposite side of the casing.

5. The photovoltaic panel of claim 3, wherein the electrical fixture forms a solder hole through which the electrical fixture is soldered to the circuit board.

6. The photovoltaic panel of claim 3, wherein the electrical fixture and at least one of the first casing wall and the second casing wall are integrally formed from a single sheet of metal.

7. The photovoltaic panel of claim 1, wherein the first leg comprises a protrusion passing through a hole in the casing.

8. The photovoltaic panel of claim 1, a single bend of the elastic strip forms the first leg and the second leg.

9. An electrical connector, comprising:

a casing, comprising a first wall and a second wall, the second wall facing the first wall; and

an elastic strip, comprising a first leg configured to hold a first bus bar against the first wall and a second leg configured to hold a second bus bar against the second wall,

wherein a protrusion of the first leg is configured to pass through a hole in the casing.

10. The electrical connector of claim 9, wherein the casing is constructed to provide an opening through which the electrical connector receives the first bus bar and the second bus bar in a case where the first bus bar and the second bus bar are inserted into the electrical connector.

11. The electrical connector of claim 10, wherein the casing is constructed to receive the elastic strip through the opening.

12. The electrical connector of claim 9, wherein the first leg and the second leg are integrally formed by a single bend of metal.

13. The electrical connector of claim 9,

wherein the second leg of the elastic strip is slotted longitudinally over a portion thereof to form a third leg, and

wherein the third leg is configured to hold a third bus bar against the second wall.

14. The electrical connector of claim 9, wherein the hole is in the first wall.

15. The electrical connector of claim 9, wherein a second protrusion of the second leg is configured to pass through a second hole in the casing.

16. The electrical connector of claim 9, wherein the casing is constructed to provide two holes in the first wall through which two protrusions on the first leg are inserted and two holes in the second wall through which two protrusions on the second leg are inserted.

17. The electrical connector of claim 9, wherein the elastic strip is symmetric such that the first leg and the second leg are substantially equivalent in size and shape.

18. An electrical connector, comprising:

a casing comprising a first wall and a second wall, the second wall facing the first wall; and

an elastic strip comprising a first leg configured to hold a first bus bar against the first wall and a second leg configured to hold a second bus bar against the second wall,

wherein a single bend of the elastic strip forms the first leg and the second leg.

19. The electrical connector of claim 18, wherein the elastic strip is made of conductive resilient spring metal having a thickness between 1 and 2 millimeters.

20. The electrical connector of claim 18,

wherein the first leg comprises a protrusion passing through a hole in the casing, and wherein the casing comprises an electrical fixture extending through a wall to electrically connect to a circuit board.