EP0190835A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fan Mounting
Assignee: Rittal Werk Rudolf Loh GmbH and Co KG
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Filing: 1986-01-17
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Granted: —
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Expires: 2006-01-17
Abstract
Abstract A fan casing for mounting a plurality of motor/fan units for cooling electronic apparatus mounted in racks or cabinets, the casing comprising two identical planar members (2) to be assembled so that the motor/fan units are sandwiched between the planar members (2) with finger guard members (17) covering openings in the planar members (2). Inwardly directed projections (10) formed by a pierce and plunge operation are provided on the planar members (2) to engage in apertures in the motor/fan units to locate the motor/fan units (14) and indentations (11) are formed in the planar members (2) to receive and locate the finger guard members so that when the two parts of the casing are assembled the finger guard members are disposed between the motor/fan units and the planar members (2). Attachment means are provided engaging in recesses (18) to couple the two planar members (2) one to the other, each planar member (2) has parts of side walls (5) and end walls (3, 4) integral therewith and the overall height (2D) of the casing is 45 mm.
Inventors
- 👤 David Paul Erlam
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 17:23
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/20009; H05K7/20136; H05K7/20172; F; F04; F04D; F04D29/00; F04D29/40; F04D29/52; F04D29/522; F04D29/526; F24; F24F; F24F13/00; F24F13/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
141 words
A fan casing for mounting a plurality of motor/fan units and comprising an upper planar member (2), a lower planar member (2), motor/fan units (14) sandwiched between the planar members (2) and finger guard members (17) to cover openings in the planar members (2), characterised in that inwardly directed projections (10) are provided on the planar members (2) to engage in apertures (12) in the motor/fan units (14) to locate the motor/fan units (14), indentations (11) are formed in the planar members (2) to receive and locate the finger guard members (17) so that when the casing is assembled the finger guard members (17) are disposed between the motor/fan units (14) and the planar members (2), the two planar members (2) are substantially identical, and attachment means (19) are provided to couple the two planar members (2) one to the other.
Claim 2
Dependent Claim
141 words
A fan casing for mounting a plurality of motor/fan units and comprising an upper planar member (2), a lower planar member (2), motor/fan units (14) sandwiched between the planar members (2) and finger guard members (17) to cover openings in the planar members (2), characterised in that inwardly directed projections (10) are provided on the planar members (2) to engage in apertures (12) in the motor/fan units (14) to locate the motor/fan units (14), indentations (11) are formed in the planar members (2) to receive and locate the finger guard members (17) so that when the casing is assembled the finger guard members (17) are disposed between the motor/fan units (14) and the planar members (2), the two planar members (2) are substantially identical, and attachment means (19) are provided to couple the two planar members (2) one to the other.
Claim 3
Dependent Claim
39 words
A fan casing according to claim 1, characterised in that each planar member (2) has at least one side wall (5) and one end wall (3, 4) thereon or a portion of a side wall and an end wall.
Claim 4
Dependent Claim
91 words
A fan casing according to claim 1, characterised in that each planar member (2) has a half height end wall (3, 4) at each end, a half height side wall (6) along one side with end portions (6a, 6b) thereof of full height and at the other side has a half height side wall (5) with end portions thereof missing to form cut-aways to receive the full height side wall end portions (6a, 6b) of the other planar member (1) when they are brought into engagement after one has been inverted.
Claim 5
Dependent Claim
83 words
A fan casing according to any one of claims 1 to 3, characterised in that the inwardly directed projections (10) provided on the planar members (1) to engage in the apertures (12) in the motor/fan units (14) to locate the motor/fan units (14) comprise inwardly directed portions of the material of which the respective planar member (1) is formed, said material being caused to project inwardly by a pierce and plunge operation effected on the outer face of the respective planar member (1).
Claim 6
Dependent Claim
58 words
A fan casing according to any one of claims 1 to 4, characterised in that the attachment means (19) to couple the two planar members (1) one to another comprise elongate members (19) with the opposite ends drilled and screw threaded to receive screws (18a) extending therein through apertures in the planar members (1) from the outer face.
Claim 7
Dependent Claim
95 words
A fan casing according to any one of claims 1 to 4, characterised in that the attachment means (19) to couple the two planar members (1) one to another comprise elongate members (19) with one of the planar members (1) permanently secured to the elongate members (19) by providing a rivet head on one end of each elongate member (19) and the other of the planar members (1) can be coupled to the elongate members by providing a screw threaded bore in the other end of each elongate member (19) to receive a screw (18a).
Claim 8
Dependent Claim
50 words
A fan casing according to claim 5 or claim 6, characterised in that the planar members (2) are inwardly dished to form recesses to receive screw heads or rivet heads such that the attachment means (19) do not cause the fan casing to have a height greater than "one unit".
Claim 9
Dependent Claim
56 words
A fan casing according to any one of claims 1 to 7, characterised in that each of the indentations (11) in the planar members (2) has a projection (lla) in the form of a transverse knife edge shaped portion of the material of the respective planar member extending thereinto to engage the finger guard member (17).
References Cited (Backward Citations)
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