US 12,171,069 B2
Explosion-proof housing and method for the assembly thereof
Elena Kondrus, Künzelsau (DE); Jürgen Schmitt, Öhringen (DE); Natascha Sekinger, Baierbach (DE); Otto Walch, Gerabronn (DE); Bernd Limbacher, Schwäbisch Hall (DE); and Christian Kochendörfer, Schwäbisch Hall (DE)
Assigned to R. Stahl Schaltgeräte GmbH, Waldenburg (DE)
Appl. No. 17/428,175
Filed by R. Stahl Schaltgeräte GmbH, Waldenburg (DE)
PCT Filed Jan. 24, 2020, PCT No. PCT/EP2020/051770
§ 371(c)(1), (2) Date Aug. 3, 2021,
PCT Pub. No. WO2020/160937, PCT Pub. Date Aug. 13, 2020.
Claims priority of application No. 10 2019 102 832.9 (DE), filed on Feb. 5, 2019.
Prior Publication US 2022/0201872 A1, Jun. 23, 2022
Int. Cl. H05K 5/00 (2006.01)
CPC H05K 5/0008 (2013.01) 13 Claims
OG exemplary drawing
 
1. An explosion-proof housing comprising:
a housing body that limits an interior and that comprises a housing opening via which access to the interior can be achieved, the housing body having a housing surface extending along a first plane;
a frame part separate from the housing body and having first and second frame part surfaces opposite one another, the first frame part surface facing the housing surface to form a first flameproof gap;
a peripheral web surrounding the housing opening and that comprises at least one central web that extends within the peripheral web and separates the housing opening in at least two opening sections; and
at least two separate covers each having a cover surface facing the second frame part surface to form a second flameproof gap.
 
8. An explosion-proof housing comprising:
a housing body that limits an interior and that comprises a housing opening via which access to the interior can be achieved,
a frame part that is attached to the housing body and that comprises a peripheral web surrounding the housing opening and that comprises at least one central web that extends within the peripheral web and separates the housing opening in at least two opening sections,
wherein the frame part is releasably attached to the housing body by a connection arrangement comprising multiple separate connection units wherein one or more of the connection units are configured as a clamping unit that is configured for creation of a clamping connection, and
at least two separate covers that abut against the peripheral web and/or the at least one central web in a closing position respectively, such that between each cover and the frame part a flameproof gap is formed.
 
13. A method for explosion-proof arrangement of at least one electrical and/or electronic device in an explosion-proof housing, the method comprising:
providing a housing body that limits an interior and that comprises a housing opening, the housing body having a housing surface extending along a first plane;
providing a frame part having first and second frame part surfaces opposite one another, the first frame part surface facing the housing surface to form a first flameproof gap;
a peripheral web that surrounds the housing opening and comprises at least one central web that extends within the peripheral web;
providing at least two separate covers each having a cover surface facing the second frame part surface;
arranging the at least one electrical and/or electronic device in the interior of the housing body; and
attaching the frame part to the housing body in a manner such that the at least one central web separates the housing opening in at least two opening sections and attaching the at least two covers in a closing position to the frame part, wherein one cover surface faces the peripheral web and the other of the cover surfaces faces the at least one central web, such that a second flameproof gap is formed between each cover and the second frame part surface and wherein the frame part is releasably attached to the housing body by a connection arrangement.