Inverter

• US 7,672,115 B2
• Filed: 05/05/2008
• Issued: 03/02/2010
• Est. Priority Date: 05/23/2007
• Status: Active Grant

• Current Assignee: SMA Solar Technology AG
• Original Assignee: SMA Technologie AG (SMA Solar Technology AG)
• Inventors: Häde, Johannes, Benn, Alexander, Donth, Andreas, Victor, Matthias, Laschinski, Joachim
• Primary Examiner(s): DATSKOVSKIY, MICHAIL V
• Application Number:
  US12/151,259
• Publication Number:
  US 20080291609A1
• Time in Patent Office: 666 Days
• Field of Search: 361/103, 361622-627, 361/632, 361643-647, 361/658, 361/801, 361/807, 361/820, 363/40, 363/55, 363/58, 363/132, 363/141, 363/131, 363144-147, 363/112, 363/149, 174/16.R, 174/50, 174/52.1, 174/52.4, 312/223.2, 312/223.3, D13/119, D13/123, D13/124, D13/162, 307/147, 307/150, 307/151, 318/778
• US Class Current: 361/625
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: Y02E 10/56 Power conversion systems, e.g. maximum power point trackers

Abstract

The subject matter of the invention is an inverter including a casing (1), said casing (1) including at least two casing chambers (2, 3) that are each closable through a separate cover (2a, 3a).

Claims

1. An inverter for a PV installation comprising:

a first casing chamber and a second casing chamber, each separately closable by a corresponding first and second cover, the first and second covers being arranged such that the second cover has to be removed before the first cover can be removed;

electronic power components being disposed in the first casing chamber; and

an electrical connection being provided from the second casing chamber into the first casing chamber, the electrical connection having an IP rating at least corresponding to an IP rating of the first casing chamber,

wherein the electrical connection comprises a socket disposed in a wall of the first casing chamber, the socket serving to receive a plug.

2. An inverter for a PV installation comprising:

a first casing chamber and a second casing chamber, each separately closable by a corresponding first and second cover, the first and second covers being arranged such that the second cover has to be removed before the first cover can be removed;

electronic power components being disposed in the first casing chamber; and

an electrical connection being provided from the second casing chamber into the first casing chamber, the electrical connection having an IP rating at least corresponding to an IP rating of the first casing chamber,

wherein the electrical connection comprises a lead-through terminal disposed in a wall of the first casing chamber.

3. The inverter as set forth in claim 2,

wherein the lead-through terminal comprises a terminal body, said terminal body comprising a shield for abutment against the wall of the first casing chamber, said terminal body comprising a clamping member through which said shield of said terminal body is pressed against said wall.

4. The inverter as set forth in claim 3,

wherein the clamping member is configured to be a dip that may be slidably received by the terminal body.

5. The inverter as set forth in claim 4,

wherein the clip is configured like a U-shaped bar, the legs of said bar flaring toward the bight segment of said bar when said bar is viewed from the side.

6. The inverter as set forth in claim 5,

wherein for the bar to be slidably received by the terminal body, said terminal body comprising rail-shaped seats for the legs of said bar, an abutment edge for said bar being respectively provided on the portion turned away from the shield on the rail-shaped seat, said abutment edge being configured to taper according to the configuration of the legs of said bar on the terminal body.

7. The inverter as set forth in claim 5,

wherein the bar is adapted to be snap-fit to the terminal body.

8. The inverter as set forth in claim 3,

wherein the shield comprises a seal on its side turned toward the wall.