WO1998047335A1 - Module empilable destine a un equipement electronique - Google Patents

Module empilable destine a un equipement electronique Download PDF

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Publication number
WO1998047335A1
WO1998047335A1 PCT/SE1998/000517 SE9800517W WO9847335A1 WO 1998047335 A1 WO1998047335 A1 WO 1998047335A1 SE 9800517 W SE9800517 W SE 9800517W WO 9847335 A1 WO9847335 A1 WO 9847335A1
Authority
WO
WIPO (PCT)
Prior art keywords
modules
module
mounting
back plate
straps
Prior art date
Application number
PCT/SE1998/000517
Other languages
English (en)
Swedish (sv)
Inventor
Per Roland LÖÖW
Lars Nygren
Gunnel Andersson
Göte JOHANNISON
Lars Bertilsson
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SE9701419A external-priority patent/SE509243C2/sv
Priority claimed from SE9701421A external-priority patent/SE509115C2/sv
Application filed by Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Priority to AU70884/98A priority Critical patent/AU7088498A/en
Publication of WO1998047335A1 publication Critical patent/WO1998047335A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/18—Construction of rack or frame
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0021—Side-by-side or stacked arrangements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1424—Card cages
    • H05K7/1425—Card cages of standardised dimensions, e.g. 19"-subrack

Definitions

  • the present invention relates to a mounting base for a modular construction system for equipped data-, telecommunication- or radio base stations.
  • a stackable module is shown.
  • the module has a top plate, a bottom plate, two side plates and a back plate removably connected with each other by respective mounting connectors. Furthermore, the module has a "door" with a cavity.
  • Several modules can be mounted together by screwing them together with respective flanges on the underside.
  • DE 3 334 587 and EP 0 498 790 similar modules are shown.
  • the problem with stacks of modules according to the prior art is that cable pulling is not especially flexible and that the cables risk being damaged by the sharp edges on the flanges existing there.
  • the stacks of modules are hardly able to withstand powerful shaking such as occurs during an earthquake.
  • One object of the present invention is to provide a stable module with the possibility to make a strong joint between several modules so that a stack of modules will be able to stand up to the earthquake requirement even with high weights in the modules.
  • Another object of the present invention is to make modules where the cables can be drawn in a simple and flexible way.
  • a further object of the present invention is to provide a strong joint between the modules which can withstand an earthquake and which is not in the way for equipment, which does not damage any possible cabling and which gives electrically good characteristics between the modules.
  • Yet another object of the present invention is to provide a mounting base for cabinets and stacks of modules which is light, simple and cheap to manufacture but even so resistant enough to successfully fulfil the applicable earthquake requirements.
  • a module comprising an outer back plate, two side plates and a door, where the side plates are bent between the outer back plate and the door to uprights in order to increase the stability of the module and so that when two modules are placed beside each other, a vertical cavity is formed between the modules.
  • the cabling can take place. Since the cavity between the modules is open at the front nearest to the doors of the modules, the cabling does not have to be threaded; instead the whole bunch of cables can be prefabricated and mounted in the cavities. Cables can also be placed in a cable shelf in front of the modules, in a cable chute in the mounting base or threaded between modules which are standing back to back.
  • the module also comprises an inner back plate mounted so that a cavity is formed between the inner back plate and the outer back plate. This cavity can be used as a "chimney" for the ventilation of throughflowing cooling air.
  • Several modules can be mounted onto each other by a joint between the side plates/uprights, which joint comprises two straps with at least one flange from each side plate between them, and at least one screw which holds together the straps and the plates.
  • the joint is advantageously attached on the outer side of the module in order to not be in the way for a possible equipment.
  • the flanges are arranged between the straps so that the outer edges of the flanges in relation to the straps are hidden during mounting in order not to damage the cabling.
  • the straps have a shape which preferably follows the side plates but which is longer than the side plates so that if the door is mounted on the outer ends of the straps, a cavity is formed between the door and the side plates for cable pulling.
  • the mounting base can be cast in aluminium in one piece and comprises in the main outer walls, a floor, intermediate walls on both sides of the floor, casting holes in the floor between certain intermediate walls, and mounting holes in the floor and in the outer walls. Furthermore, the mounting base can comprise a cable chute.
  • the intermediate walls nearest to the mounting holes are placed in crossing direction on the two sides of the floor. Some of the intermediate walls start from the mounting holes in the outer walls. These steps are taken in order that the floor will be able to withstand the load which is highest at the mounting holes.
  • One advantage of the present invention is that as the holes run through the whole of the stack of modules, free building- in of electronic units in the whole of the stack of modules is possible, which therefore can be compared to a cabinet.
  • Another advantage is the flexible way of cabling. There is a free vertical cable space through the whole of the stack of modules which is easily accessible from the front even after equipping with electronics. Furthermore, the cables can be laid horizontally in front of the modules and between modules mounted back to back. Bunches of cables can be prefabricated since the cabling paths are made so that the cables do not have to be threaded.
  • a third advantage is that the modules are stable and the joints between the modules are strong. This means that a stack of modules passes the earthquake requirement even with high weights in the modules.
  • joints also offer good electrical characteristics between the modules, that there are hidden clipping surfaces in the joints between the modules, which protect the cables, that there are few constituent details and that the joining techniques permit joining together of both equipped and unequipped modules.
  • the advantages of the design of the mounting base is that it is economical to cast the base, that aluminium gives a low weight and can be recycled, that the mounting base does not warp during casting, and, last but not least, that the mounting base is resistant and successfully passes the earthquake requirement.
  • Figure 1 shows a perspective view of the parts which are comprised in a module according to the invention.
  • Figure 2 shows a perspective view of four mounted together modules.
  • Figure 3 shows a perspective view of the cabinet chassis in a module.
  • Figure 4a shows a perspective view of a mounting base according to the invention.
  • Figure 4b shows a view from below, a lateral view and a view from above of the mounting base in Figure 4a.
  • Figures 5a and 5b show a perspective view of the mounting of one module on another.
  • Figure 6 shows a front view, a lateral view and a view from above of the ventilation in a stack of modules.
  • Figures 7a-g show how cabling can be arranged in a stack of modules.
  • Figure 1 shows the different parts of a module 1 according to the invention and Figure 2 shows four mounted together modules la, lb, lc, Id.
  • a module 1 comprises a cabinet chassis 2 and a door 3, and, if required, one or two side cover plates 4, 5, a cover plate 6 and a cable shelf 12.
  • the modules lc, Id which are mounted closest to the floor, are mounted on a mounting base 7, 7a, 7b, with a cable chute 8 and a rear base cover 9, and optionally one or two base side cover plates 10, 11.
  • two cover strips 13 can also be used on the rear side, if it is not desired to thread cables that way.
  • the cabinet chassis 2 can be studied in more detail.
  • the cabinet chassis 2 comprises an outer back plate 21, two uprights 22, 23, four straps 24, 25, 26, 27, and optionally two cable holders 28, 29, and an inner back plate 30.
  • the inner back plate 30 is shown in Figure 1.
  • the outer back plate 21 is bent to form a back surface 101, two side surfaces 102,
  • the angles between the surfaces are not right angles. This is to make the cabinet chassis compatible with earlier existing cabinets in respect of a possible mounting together, and also to increase the stability.
  • the back surface 101 is provided with four holes 106 for mounting.
  • the mounting holes 106 can be used when two modules are to be mounted back to back. Seen strictly, it is sufficient with the two uppermost mounting holes 106 for sufficient strength. It is also possible to use the mounting holes 106 for mounting a stack of modules against a wall. Otherwise, mounting against walls can take place with the help of angle brackets mounted in holes on the upper side of the stack of modules.
  • the upper and lower edges 107, 108 of the back surface are bent to a double thick- ness with notches 109 for the mounting holes 106. This is to avoid sharp edges, and for reinforcing.
  • the upper and lower edges 110, 111, 112, 113 of the side surfaces are bent to right angles in order to form flanges 110, 111, 112, 113 for mounting.
  • Each flange 110, 111, 112, 113 is provided with a hole 114, a notch 115 and a snap shoulder 118, which are used for mounting together of two modules in the vertical direction in order to form a stack of modules.
  • Each mounting surface 104, 105 is provided with a row of holes 116 for mounting the inner back plate 30, preferably according to the standard for equipment.
  • Each mounting surface 104, 105 is also provided with two holes 117 for mounting together of the outer back plate 21, an upright 22, 23 and a strap 24, 25, 26, 27, and two holes 120 for mounting a contact bar between two modules.
  • each mounting surface 104, 105 is provided with a hole 121 for the cable holder 28, 29, and two holes 119 for simple mounting together of the outer back plate 21 with the uprights 22, 23.
  • the mounting surface can furthermore be provided with extra holes for mounting external earth cables.
  • Each upright 22, 23 is bent to form a first equipment surface 201, a first mounting surface 202, an intermediate surface 203, a second equipment surface 204 and a second mounting surface 205.
  • the first equipment surface 201 is provided with corresponding standardized holes 116 such as the equipment surface 105 of the outer back plate could have, and mounting holes 218 for the cable holder 29.
  • the edges 206, 207 of the first mounting surface 202 are bent to form flanges 206, 207, each with a mounting hole 208 which is used for mounting together two modules vertically. Furthermore, the first mounting surface 202 comprises two further mounting holes 209 for mounting together the uprights 22, 23 with the straps 24, 25, 26, 27, and mounting holes 217 for cables.
  • the second equipment surface 204 has in the same way edges 210, 211, which are bent to form flanges 210, 211, each with a mounting hole 212.
  • the second equip- ment surface 204 is furthermore equipped with standardized holes 213 for mounting of bars for the equipment.
  • the second equipment surface can, furthermore, be provided with mounting holes 219 for an optional angle bracket which can be fastened between the uprights 22,23 and the mounting base 7 for increased protection during earthquakes.
  • the edges 214, 215 of the second mounting surface are also bent to form flanges 214, 215, but can be without mounting holes.
  • the second mounting surface 205 is on the other hand provided with mounting holes 117, 120 and 121, corresponding to the mounting holes 117, 120, 121 on the mounting surface 105 of the outer back plate 21.
  • the mounting surface 105 of the outer back plate is, however, wider than the second mounting surface 205 of the upright, which means that when the outer back plate 21 and the upright 22, 23 are mounted together according to Figure 3, the equipment holes 116 of the outer back plate will be accessible for mounting of the inner back-plate 30.
  • the straps 24, 25, 26, 27 are mounted on the inside of the flanges 206, 210, 214, 112 and have a shape which follows the uprights 22,23 and the outer back plate 21.
  • Each strap 24, 25, 26, 27 has in the same way mounting holes 209 corresponding to the mounting holes 209 in the first mounting surface of the uprights, and mounting holes 208, 212, 114, 118 and 115 in accordance with corresponding holes, shoulders and notches 208, 202, 114, 118 and 115 on the flanges 206, 210, 214, 112.
  • the rearmost mounting hole 115 is a hole on the upper straps 24, 26, but a notch on the lower straps 25, 27. This is in order to simplify mounting of one module above another or on top of a mounting base.
  • the mounting can in this case simply take place by a screw being screwed a small distance into the mounting hole 115 on the lower module/mounting base, whereafter the upper module is pushed in place.
  • the notch 115 on the upper flanges 112 on the outer back plate could naturally also be a hole instead of a notch, but here it has been chosen to make the outer back plate 21 symmetrical in order to speed up assembly.
  • each strap 24, 25, 26, 27 has an outgrowth 216 with a notch 117, which corresponds to the hole 117 in the second mounting surface of the upright and the hole 117 in the mounting surface 105 of the outer back plate.
  • This construction is in order to mount together the upright 22, 23 with the outer back plate 21 but also helps to provide a strong and stable joint when two modules are joined together.
  • Each strap 24, 25, 26, 27 has, as mentioned, a shape which follows the uprights 22, 23 and the outer back plate 21, but the straps 24, 25, 26, 27 are longer and extend out a bit in front of the cabinet chassis 2. This is in order to form a space for cables, in accordance with the standards.
  • the lower straps 25, 27 have notches 220 for hooking on of corresponding bosses on the door 3, while the upper straps 24, 26 have holes 221 and clips 222 for screwing the corresponding screws on the door 3.
  • each strap 24, 25, 26, 27 there are holes 223 for the mounting of possible side cover plates 4, 5.
  • holes 224 can be placed for mounting a cabinet-identifier, and on the lower left 25 or the right 27 strap a hole 225 can be placed for a wrist strap.
  • the door 3 as well as the cover plate 6 and the cable shelf 12 have ventilation holes 252, 253, 254, which can be seen in Figure 1.
  • the cable shelf 12 and the cable holder 28, 29 have furthermore holes 251, 255 for cable mounting.
  • FIGS. 4a and 4b show the mounting base 7 in more detail. It is cast in aluminium in one piece.
  • the mounting base 7 is, however, not made of a solid block. This is in order to save material and to make it lighter. Aluminium can, as is known, also be recycled.
  • the mounting base 7 is provided with a floor 300 surrounded by outer walls 307. In the floor 300 there are four floor mounting holes 301 and eight holes 302 for the mounting of four or eight feet. In the vicinity of the outer walls 307 there are six holes 303 for the mounting of a possible attachment bracket, and eight mounting holes 208, 212, 114, 115, which correspond to the mounting holes 208, 212, 114, 115 on the cabinet chassis 2.
  • casting holes 304 are furthermore twelve casting holes 304 in the floor 300. These casting holes 304 also allow air to be taken in from below, which sometimes can be desired. If it is not desirable that air is taken in from below, e.g. from the fire-protection point of view, a protective plate can be placed over the casting holes.
  • intermediate walls 305 are provided. Their positioning and number depend on casting requirements and durability demands. An example is shown in Figure 4b but other variations can be envisaged. The appearance should, however, be somewhat symmetrical at the same time as there should be intermediate walls/outer walls near to the mounting holes 208, 212, 114, 115, 301, 302, 303 for the sake of stability.
  • the mounting base 7 comprises also a cable chute 8 and a rear mounting base cover 9, and optionally one or two mounting base side cover plates 10, 11.
  • the rear mounting base cover is screwed in holes in the rear side of the mounting base 7.
  • the cable chute 8 is hooked in notches 306 on the mounting base in order that the upper side of the mounting base should be even.
  • the mounting base side cover plates 10, 11 are screwed in the front of the cable chute 8 but are snapped to the rear of the mounting base in notches 308 in order to facilitate demounting when a stack of cabinets stands up against a wall.
  • a mounting base is first screwed in the floor with four screws, preferably expander screws, in the four floor mounting holes so that the mounting base is horizontal.
  • the mounting bases are mounted at a suitable distance from each other by using contact bars between the mounting bases, which contact bars are attached with screws in the mounting holes 208,115. These contact bars can then be taken away after the mounting bases have been mounted in place.
  • a first module is mounted on the mounting base by two screws at the front and two screws at the back being mounted in the mounting holes 208,115.
  • the first screws can be screwed in a bit in the rear mounting holes 115, whereafter the module is pushed in place and the rest of screws are screwed in.
  • a second module is mounted in the same way on the first module by, in the same way two screws at the front and two screws at the back being mounted in the mounting holes 208,115.
  • the stack of cabinets is built up to the desired height, suitably, however, at most five modules.
  • the stack of cabinets, which must be able to survive an earthquake, is suitably reinforced with four extra screws between the mounting base and the first module in the mounting holes 212,114, and four extra screws between the first module and the second module, similarly in the mounting holes 212,114.
  • a mounting bar is used in order to get everything aligned.
  • flanges and the straps could equally well be mounted on the inside of the modules but as they are, as in the Figures, mounted on the outside of the modules, a stack of modules has a "running" space which can be compared to a cabinet. This means that a free building-in of electronic units can be obtained in the whole of the stack of modules.
  • the joint also offers good electrical conductor characteristics between the modules, which is important from an earthing point of view.
  • An external earth cable is suitably connected to one of the screws which joint together the upper module and the next upper module, and in this way the whole of the stack of modules becomes earthed.
  • a contact bar should be mounted between two modules which stand beside each other in the lateral direction. This is above all for the sake of electrical conduction, but to a certain amount also for the sake of stability.
  • the mounting base 7 is only used at the lowest part of a stack of modules, the cover plate 6 in the same way only on the uppermost, while the side cover plates 4,5 and the mounting base side cover plates 10,11 are only used on the sides of the module where there will not be mounted any other module, see Figure 2. If two modules are mounted side-to-side, then, as mentioned earlier, cover strips 13 can instead be attached on the rear side.
  • a stack of modules can also be attached to a wall or with two stacks of modules back to back.
  • a channel 46 which will act as a chimney 46 for cooling air, is formed.
  • the cable shelf 12 functions also as an air- guiding plate and controls the airflow.
  • the cooling air comes in from the front of the module through the ventilation holes 252 of the doors and goes out through the ventilation holes 253 of the cover plate at the top of the stack of modules.
  • Each module has a separate intake for air at room temperature.
  • Serial ventilation means that the same air passes through all the modules in a stack of modules, from the mounting base 7 to the cover plate 6. This means that the air temperature will rise as the air passes the modules.
  • the modules can be equipped more because no air intake is required under each magazine.
  • an inner back plate 30 can be mounted a distance from the outer back plate 21 to ensure that a pressure increase in the chimney 46 cannot cause the warmed-up air to be forced in over or under the equipment in the wrong manner.
  • the appearance of the inner back plate 30 depends on the equipment of the module and should be specially designed. In particular, if a fan 44 is to be used, the inner back plate 30, however, should be provided with at least one hole.
  • FIG. 2 shows four mounted together modules la, lb, lc, Id on two mounting bases 7a, 7b. If a module la is to be mounted next to another module lb, as mentioned earlier, no side cover plates 4, 5 or mounting base side cover plates 10, 11 are mounted between the modules la, lb.
  • the cabling can be seen more clearly.
  • the cable holders 28, 29 can advantageously be used.
  • the cable(s) are strapped sufficiently firmly to the front edge of the cable holder, Figure 7b. Thereafter the cable(s) are pushed backwards along the cable holders 28, 29 into the cable shaft 41, 42, 43, Figure 7c. Cables can also be mounted in the mounting holes 255 in the cable holders 28, 29, in the mounting holes 217, in the uprights 22, 23, Figure 7f, or against the straps 24, 25, 26, 27, Figure 7d.
  • cables can be mounted in the mounting holes 251 in the cable shelf 12, Figure 7e, and laid in the cable chute 8 of the mounting base. If two stacks of modules are mounted with their backs towards each other, it is possible to leave out the cover strips 13 and instead draw cables that way. All in all, the design of the modules permits cabling in a simple and flexible way.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Patch Boards (AREA)

Abstract

L'invention concerne un module empilable pour équipement électronique. Ce module comprend une flasque postérieure (21) externe, deux flasques latérales (22, 23) placées sur la flasque postérieure (21) externe, et une porte (3) en face des flasques latérales (22, 23). Ce module est conçu pour pouvoir se monter sur un autre module formant ainsi un empilage de modules. Selon l'invention, les flasques latérales (22, 23) sont pourvues d'éléments de surface (201, 202, 203, 204, 205) formant des montants augmentant la stabilité du module.
PCT/SE1998/000517 1997-04-16 1998-03-20 Module empilable destine a un equipement electronique WO1998047335A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU70884/98A AU7088498A (en) 1997-04-16 1998-03-20 Stackable module for electronic equipment

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE9701419A SE509243C2 (sv) 1997-04-16 1997-04-16 Staplingsbar modul för elektronisk utrustning
SE9701419-5 1997-04-16
SE9701421A SE509115C2 (sv) 1997-04-16 1997-04-16 Sockel för modulstaplar och skåp
SE9701421-1 1997-04-16

Publications (1)

Publication Number Publication Date
WO1998047335A1 true WO1998047335A1 (fr) 1998-10-22

Family

ID=26662957

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/SE1998/000517 WO1998047335A1 (fr) 1997-04-16 1998-03-20 Module empilable destine a un equipement electronique
PCT/SE1998/000516 WO1998047334A1 (fr) 1997-04-16 1998-03-20 Base de montage destinee aux armoires et modules empiles pour equipement electronique

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/SE1998/000516 WO1998047334A1 (fr) 1997-04-16 1998-03-20 Base de montage destinee aux armoires et modules empiles pour equipement electronique

Country Status (2)

Country Link
AU (2) AU7088498A (fr)
WO (2) WO1998047335A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12041744B2 (en) 2020-08-31 2024-07-16 Ovh Rack for a data center

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1249750A1 (fr) 2001-04-12 2002-10-16 Lufthansa Technik AG Cadre du rack

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1529250A (en) * 1975-08-28 1978-10-18 Siemens Ag Housing assemblies
EP0057580A2 (fr) * 1981-01-30 1982-08-11 Hitachi, Ltd. Structure de bâti pour équipement électronique
EP0448545A1 (fr) * 1990-03-21 1991-09-25 VYNCKIER Naamloze Vennootschap Boîtiers destinés à être couplés, en particulier pour un matériel électrique
GB2268629A (en) * 1992-07-03 1994-01-12 Bicc Plc Racks for electronic equipment
US5305187A (en) * 1992-04-15 1994-04-19 Nec Corporation Building box type plug-in modular rack structure for electronic equipment

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4661888A (en) * 1984-07-03 1987-04-28 Hewlett-Packard Company Removable modular housing for RF circuits
DE8511217U1 (de) * 1985-04-16 1985-09-05 ABN Werner Braun GmbH, 7106 Neuenstadt Verteilerschrank
DE8521461U1 (de) * 1985-07-26 1986-11-27 Siemens AG, 1000 Berlin und 8000 München Elektronikschrank
FR2614752B1 (fr) * 1987-04-28 1993-09-03 Legrand Sa Socle d'appareil electrique pouvant prendre place dans une goulotte de passage de conducteurs
GB2217520B (en) * 1988-04-08 1991-10-09 Stc Plc Electronic equipment practice
JPH04287396A (ja) * 1991-03-18 1992-10-12 Fujitsu Ltd 小形電子装置筐体
WO1995017803A1 (fr) * 1993-12-20 1995-06-29 David Stephen Hobday Meubles pour appareils electriques, et procedes de fabrication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1529250A (en) * 1975-08-28 1978-10-18 Siemens Ag Housing assemblies
EP0057580A2 (fr) * 1981-01-30 1982-08-11 Hitachi, Ltd. Structure de bâti pour équipement électronique
EP0448545A1 (fr) * 1990-03-21 1991-09-25 VYNCKIER Naamloze Vennootschap Boîtiers destinés à être couplés, en particulier pour un matériel électrique
US5305187A (en) * 1992-04-15 1994-04-19 Nec Corporation Building box type plug-in modular rack structure for electronic equipment
GB2268629A (en) * 1992-07-03 1994-01-12 Bicc Plc Racks for electronic equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12041744B2 (en) 2020-08-31 2024-07-16 Ovh Rack for a data center

Also Published As

Publication number Publication date
WO1998047334A1 (fr) 1998-10-22
AU7088498A (en) 1998-11-11
AU7088398A (en) 1998-11-11

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