Feedthrough device for an explosion-proof housing
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02G-003/22
H02G-003/06
H02G-003/08
H05K-005/02
H05K-005/06
출원번호
US-0407261
(2013-05-03)
등록번호
US-9478955
(2016-10-25)
우선권정보
DE-10 2012 105 113 (2012-06-13)
국제출원번호
PCT/EP2013/059268
(2013-05-03)
국제공개번호
WO2013/185979
(2013-12-19)
발명자
/ 주소
Wondrak, Tom
출원인 / 주소
R. Stahl Schaltgeräte GmbH
대리인 / 주소
Fitch, Even, Tabin & Flannery LLP
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
A feedthrough device (10) for an explosion-proof housing constructed as a “flameproof enclosure” of the flame protection type. The feedthrough device (10) is arranged in a wall opening of the housing and forms a flameproof gap therein. A rigid component (11) is arranged through said gap to be displa
A feedthrough device (10) for an explosion-proof housing constructed as a “flameproof enclosure” of the flame protection type. The feedthrough device (10) is arranged in a wall opening of the housing and forms a flameproof gap therein. A rigid component (11) is arranged through said gap to be displaced in its direction of extension relative to the wall. The feedthrough device (10) has a clamping body unit (20), a sleeve (21), a cap (22) and a thrust collar (23). The sleeve (21) and the cap (22) can be screwed together. Axial forces are transmitted between the clamping body unit (20) and the cap (22) via the thrust collar (23). The sleeve (21) exerts a radial clamping force on the clamping body unit (20), which is fully penetrated by a conduit (25) along a longitudinal axis (L), in which conduit a longitudinal section of a component (11) is arranged.
대표청구항▼
1. Explosion-proof housing (14) comprising: a wall (13) having a wall opening (12) through which a component (11, 15) that is rigid in its direction of extension is guided from an inside of the housing (14) toward an outside,with a feedthrough device (10) arranged in the wall opening (12), said feed
1. Explosion-proof housing (14) comprising: a wall (13) having a wall opening (12) through which a component (11, 15) that is rigid in its direction of extension is guided from an inside of the housing (14) toward an outside,with a feedthrough device (10) arranged in the wall opening (12), said feedthrough device being supported so as to be shiftable relative to the housing (14), andwherein a flameproof gap (43) is formed between the feedthrough device (10) and the wall opening (12) or the component (11, 15),wherein the feedthrough device (10) is immovably connected to the component (11, 15) and is slidably connected relative to the housing,wherein the feedthrough device (10) comprises a clamping body unit (20) enclosing the component (11, 15), a sleeve (21) acting with a radial clamping force on the clamping body unit (20), and a cap (22) that can be fastened to said sleeve. 2. Explosion-proof housing as in claim 1, wherein the housing is constructed in compliance with ignition protection category “flame-proof enclosure”. 3. An explosion-proof housing (14) comprising: a wall (13) having a wall opening (12) through which a component (11, 15) that is rigid in its direction of extension is guided from an inside of the housing (14) toward an outside,with a feedthrough device (10) arranged in the wall opening (12), said feedthrough device being supported so as to be shiftable relative to the housing (14);wherein a flameproof gap (43) is formed between the feedthrough device (10) and the wall opening (12) or the component (11, 15);wherein the feedthrough device (10) is immovably connected to the component (11, 15) and is slidably connected relative to the housing;wherein the feedthrough device (10) comprises:a clamping body unit (20) with a conduit (25) extending along a longitudinal axis (L) for accommodation of a longitudinal section (15a) of the component (11, 15) and with a conical clamping surface (26) extending about the longitudinal axis (L);a sleeve (21) having a conical interior surface (36) having a conicity adapted to the clamping surface (26) of the clamping body unit (20);a cap (22) that can be fastened to the sleeve (21) and has a thrust surface (53); anda thrust collar (23) that is arranged between the thrust surface (53) of the cap (22) and a first axial surface (27) of the clamping body unit (20), and that is disposed to transmit axial forces between the thrust surface (53) and the first axial surface (27). 4. The explosion-proof housing as in claim 3, wherein the thrust surface (53) and/or the first axial surface (27) are oriented obliquely or at a right angle relative to the longitudinal axis (L). 5. The explosion-proof housing as in claim 3, further comprising a sliding bearing (58) formed between the thrust collar (23) on one side and the thrust surface (53) and/or the first axial surface (27) on another side. 6. The explosion-proof housing as in claim 3, wherein an intermediate space exists between the sleeve (21) and the thrust collar (23). 7. The explosion-proof housing as in claim 3, wherein the clamping body unit (20) comprises two clamping bodies (24), each having an abutment surface (31) where the clamping bodies (24) abut against each other. 8. The explosion-proof housing as in claim 7, wherein the abutment surfaces (31) are planar surfaces. 9. The explosion-proof housing as in claim 7, wherein the abutment surfaces (31) are lying next to each other in a plane in which extends the longitudinal axis (L). 10. The explosion-proof housing as in claim 3, wherein a cross-section of the conduit (25) is adapted to a cross-section of the component (11, 15) that is to be accommodated. 11. The explosion-proof housing as in claim 3, wherein the clamping surface (26) of the clamping body unit (20), viewed along the longitudinal axis (L), is arranged between the first axial surface (27) and a second axial surface (28) of the clamping body unit (20). 12. The explosion-proof housing as in claim 11, wherein the sleeve (21) has a radially inward-extending annular flange (37) axially adjoining the interior surface (36), said annular flange being associated with the second axial surface (28). 13. The explosion-proof housing as in claim 3, wherein a section (42) of the exterior surface of the sleeve (21) and an opening (12, 45) in the housing (14) cooperatively form the flameproof gap (43).
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이 특허에 인용된 특허 (3)
Chiou, Jiun-Wei, Cable and flexible conduit gland.
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