EP0051024A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Shelf unit for electronic communication devices
Assignee: Fujitsu Ltd
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Filing: 1981-10-21
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Granted: —
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Expires: 2001-10-21
Abstract
Abstract A shelf unit (10) for packing therein printed circuit boards in electronic communication devices, to be put one upon another in a cabinet, wherein said shelf unit (10) comprises hollow side plates (15) which are provided, on their outer faces, with air inlet openings (18), and atop plate (13) which is connected to the side plates and which comprises an inclined heat diffusion plate which defines thereon an air introduction space (22), the side plates being provided, on their innerfaces, with openings (19) communicating with the air introduction space.
Inventors
- 👤 Yoshihiro Takahashi
- 👤 Katsuo Okuyama
- 👤 Yutaka Matsukuma
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 10:29
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/18; H05K7/20; H05K7/20009; Y; Y10; Y10S; Y10S165/00; Y10S165/903
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
84 words
A shelf unit for packing therein printed circuit boards in electronic communication devices, to be put one on another in a cabinet, wherein said shelf unit comprises hollow side plates which are provided, on their outer faces, with air inlet openings, and a top plate which is connected to the side plates and which comprises an inclined heat diffusion plate which defines thereon an air introduction space, said side plates being provided, on their inner faces, with openings communicating with the air introduction space.
Claim 2
Dependent Claim
84 words
A shelf unit for packing therein printed circuit boards in electronic communication devices, to be put one on another in a cabinet, wherein said shelf unit comprises hollow side plates which are provided, on their outer faces, with air inlet openings, and a top plate which is connected to the side plates and which comprises an inclined heat diffusion plate which defines thereon an air introduction space, said side plates being provided, on their inner faces, with openings communicating with the air introduction space.
Claim 3
Dependent Claim
32 words
A shelf unit according to claim 1, further comprising a bottom plate which is connected to the side plates and which has openings through which the air comes into the shelf unit.
Claim 4
Dependent Claim
29 words
A shelf unit according to claim 2, further comprising lower guide means on the bottom plate for guiding the insertion of the printed circuit boards into the shelf unit.
Claim 5
Dependent Claim
29 words
A shelf unit according to claim 3, further comprising upper guide means on the top plate for guiding the insertion of the printed circuit boards into the shelf unit.
Claim 6
Dependent Claim
18 words
A shelf unit according to claim 1, wherein said top plate comprises a generally V-shaped heat diffusion plate.
Claim 7
Dependent Claim
17 words
A shelf unit according to claim 1, further comprising an overhang outwardly projecting from the top plate.
Claim 8
Dependent Claim
25 words
A shelf unit according to claim 6, wherein said overhang comprises an inclined surface in an extension of the inclination of the heat diffusion plate.
Claim 9
Dependent Claim
35 words
A shelf unit according to claim 6, further comprising a pair of separation plates which are connected to the respective side plates and which project from the latter in the same direction as the overhang.
Claim 10
Dependent Claim
19 words
A shelf unit according to claim 2, further comprising a detachable overhang which outwardly projects from the bottom plate.
Claim 11
Dependent Claim
32 words
A shelf unit according to claim 9, further comprising separation plates connected to the side plates, wherein said overhang comprises tongues which can be engaged by and disengaged from the separation plates.
Claim 12
Dependent Claim
30 words
ll. A shelf unit according to claim 10, wherein when shelfunits are put one upon another, said overhang is located on the separation plates of an adjacent lower shelf unit.
Claim 13
Dependent Claim
35 words
A shelf unit according to claim 1, wherein said side plates are provided, on their upper end, with male members and on their lower end, with female members which are complementary to the male members.
Claim 14
Dependent Claim
34 words
A-shelf unit according to claim 1, wherein said side plates are provided, on their upper end, with female members and on their lower end, with male members which are complementary to the female members.
Claim 15
Dependent Claim
156 words
An assembly comprising a frame device having a cabinet and posts which are supported on a base and which has cable guide means, and a plurality of superimposed shelf units in the cabinet for packing therein printed circuit boards, each shelf unit comprising hollow side plates which are provided, on their outer faces, with air inlet openings, a top plate which is connected to the side plates and which comprises a generally V-shaped heat diffusion plate which defines thereon, together with adjacent upper shelf unit, an air introduction space, said side plates being provided, on their inner faces, with openings communicating with the air introduction space, and a bottom plate which is connected to the side plates and which has openings through which the air comes into the shelf unit, from the air introduction space under the bottom plate, whereby the air coming into the shelf units can be independently diffused from the respective shelf units.
Claim 16
Dependent Claim
156 words
An assembly comprising a frame device having a cabinet and posts which are supported on a base and which has cable guide means, and a plurality of superimposed shelf units in the cabinet for packing therein printed circuit boards, each shelf unit comprising hollow side plates which are provided, on their outer faces, with air inlet openings, a top plate which is connected to the side plates and which comprises a generally V-shaped heat diffusion plate which defines thereon, together with adjacent upper shelf unit, an air introduction space, said side plates being provided, on their inner faces, with openings communicating with the air introduction space, and a bottom plate which is connected to the side plates and which has openings through which the air comes into the shelf unit, from the air introduction space under the bottom plate, whereby the air coming into the shelf units can be independently diffused from the respective shelf units.
Claim 17
Dependent Claim
51 words
An assembly according to claim l4, wherein said cabinet comprises a pair of side panels having air inlet openings opposed to the side plates of the shelf units and a pair of front and back door panels having air outlet openings opposed to the air introduction spaces of the shelf units.
Claim 18
Dependent Claim
24 words
An assembly according to claim 15, wherein said cable guide means comprise generally u-shaped cable brackets connected to the posts of the frame device.
Claim 19
Dependent Claim
60 words
An assembly according to claim 16, wherein each of said shelf unit comprising an overhang which outwardly projects from the top plate and which comes into contact with the inner surface of the corresponding door panel, and separation plates which are connected to the side plates and which come into contact with the inner surface of the corresponding door panel.
Claim 20
Dependent Claim
51 words
l8. An assembly according to claim 16, wherein each of said shelf unit comprises a cable duct which can be detachably connected to the cable brackets and which are located between the bottom plate and the corresponding door panel to come into contact with the bottom plate and the door panel.
Claim 21
Dependent Claim
74 words
An assembly according to claim 16, wherein each of said shelf units comprises a pair of separation plates which are connected to the respective side plates and which come into contact with the corresponding door panel, and a cable duct which can be detachably connected to the separation plates and which are located between the bottom plate and the corresponding door panel to come into contact with the bottom plate and the door panel.
References Cited (Backward Citations)
No citation records indexed.
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