EXPLOSION-PROTECTED ARRANGEMENT OF ELECTRICAL AND/OR ELECTRONIC COMPONENTS

• US 20160069557A1
• Filed: 04/15/2014
• Published: 03/10/2016
• Est. Priority Date: 04/26/2013
• Status: Abandoned Application

• Current Assignee: R. STAHL Schaltgeräte GmbH
• Original Assignee: R. Stahl Schaltgerte Gmbh
• Inventors: Rckgauer, Johannes
• Application Number:
  US14/786,190
• Publication Number:
  US 20160069557A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21S 2/005 of modular construction
• CPC Class Codes: F21V 17/16 by deformation of parts; Snap action mounting
• CPC Class Codes: F21V 17/164 the parts being subjected to bending, e.g. snap joints
• CPC Class Codes: F21V 25/12 Flameproof or explosion-proof arrangements
• CPC Class Codes: F21V 29/763 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 31/005 Sealing arrangements therefor
• CPC Class Codes: F21V 5/007 Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane combination of two or more refractors F21V5/008
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05K 7/14 Mounting supporting structure in casing or on frame or rack
• CPC Class Codes: H05K 7/205 Heat-dissipating body thermally connected to heat generating element via thermal paths through printed circuit board [PCB] details of PCBs relating to heat transfer H05K1/0201

Abstract

An explosion-protected arrangement (5) is provided that can be formed of a plurality of modules (49). Each module (49) has at least one covering part (20) and at least one carrier (13). The carrier (13) has a carrier face (12) on which electrical and/or electronic components (6) are arranged and in electrical contact. The covering body (20) has an underside (21) facing the carrier face (12) in which a plurality of receiving chambers (22) is formed. Each receiving chamber (22) is open via an opening (23) only on the underside (21) and is otherwise closed by the covering body (20). Webs (25) having web faces (26) surround the openings (23) and receiving chambers (22). When a connection is made between the covering body (20) and the carrier (13), each component (6) is surrounded by a web (25) with the web face (26) thereof forming a flame-proof gap (27) with an associated section of the carrier face (12).

Claims

1-18. -18. (canceled)

19. An explosion-protected apparatus (5) comprising

at least one carrier (13) having one carrier face (12) on which are arranged a plurality of electrical and/or electronic components at a distance from one another,

at least one covering body (20),

a connecting device (32) arranged on the at least one covering body (20) and/or on the at least one carrier (13) for establishing a locking connection between the at least one covering body (20) and the at least one carrier (13),

said at least one covering body (20) having a plurality of receiving chambers (22) for receiving at least a part of said components (6), said receiving chambers (22) each having an opening (23) only on a side facing the carrier face (12),

a web (25) having a web face (26) extending circumferentially around the opening (23) of each receiving chamber (22), and

said connecting device securing together said at least one covering body (20) and at least one carrier (13) with said web face (26) and carrier face (12) forming a flame-proof gap (27).

20. The explosion-protected apparatus of claim 19 in which said carrier device (32) establishes a positive locking connection between the at least one covering body (20) and the at least one carrier (13).

21. The explosion-protected apparatus of claim 19 in which said carrier device (32) establishes a nonpositive locking connection between the at least one covering body (20) and the at least one carrier (13).

22. The explosion-protected apparatus of claim 19 in which each of said electrical and/or electronic component (6) is arranged in said receiving chamber (22).

23. The explosion-protected apparatus of claim 19 in which the web (25) has a width (B) determined as a function of the total volume of the receiving chamber (22).

24. The explosion-protected apparatus of claim 19 in which the web (25) has a width (B) determined as a function of the remaining residual volume between the component (6) and the associated receiving chamber (22) in which it is received.

25. The explosion-protected apparatus of claim 19 in which said at least one covering body (20) is made of a cohesive material without seams and joints.

26. The explosion-protected apparatus of claim 19 in which said at least one carrier (13) is a circuit board (14).

27. The explosion-protected apparatus of claim 19 in which said at least one carrier (13) comprises a cooling body (15).

28. The explosion-protected apparatus of claim 27 in which said at least one carrier (13) includes at least one coolant channel (16).

29. The explosion-protected apparatus of claim 19 in which said at least one carrier (13) consists of metal.

30. The explosion-protected apparatus of claim 19 in which said connecting device (32) comprises at least one detent (33) or plug on each covering body (30) and/or on each carrier (13) that is associated, respectively, with a counter-detent (34) or a counter-plug on each carrier (13) and/or covering body (20), respectively.

31. The explosion-protected apparatus of claim 19 including a sealing arrangement (40) between the at least one covering body (20) and the at least one carrier (13).

32. The explosion-protected apparatus of claim 19 in which said at least one carrier (13) with the electrical and/or electronic components (6) arranged thereon and said at least one covering body (20) form a module (49).

33. The explosion-protected apparatus of claim 32 in which two of said modules (49) can be connected via a coupling device (51), and each module having a coupling element (52) and/or a counter-coupling element (53) of the coupling device (51).

34. The explosion-protected apparatus of claim 33 in which two of said modules (49) can be connected to one another via the coupling device (51) in a positive-locking and/or nonpositive-locking manner.

35. The explosion-protected apparatus of claim 33 in which said coupling element (52) and/or the counter-coupling element (53) are arranged on the carrier (13) and/or the covering body (20) of a module (49).

36. The explosion-protected apparatus of claim 19 in which at least some of said components (6) are light-emitting components (11) and/or light-receiving components.

37. The explosion-protected apparatus of claim 36 in which said covering body (20) is at least in part transmissive to the wavelength of the light emitted by the light-emitting components (11) and/or impinges in the light-receiving components in the receiving chamber (22).

38. The explosion-protected apparatus of claim 36 including an optical element (44) on said covering body (20) opposite the carrier (13).