WO2009109296A1

WO2009109296A1 - Double-bottom system in data centers and server rooms, particularly as a load-bearing floor having a ventilation supply

Info

Publication number: WO2009109296A1
Application number: PCT/EP2009/001121
Authority: WO
Inventors: Klaus Meike; Stefan Nadenau
Original assignee: SCHäFER WERKE GMBH
Priority date: 2008-03-03
Filing date: 2009-02-18
Publication date: 2009-09-11
Also published as: DE102008012215A1

Abstract

The invention relates to a double-bottom system, comprising a grid (14) having the dimension of individual boards that are disposed in an adjacent manner and supported at the corners by adjustable feet (2) on the bare ground (3), said boards being installed in data centers and server rooms in a removable manner, particularly as a load-bearing floor having a ventilation supply. The invention provides that a double-bottom system is to be created, which allows an individually variable construction method that meets all usage criteria. This is achieved in that a support rack (6), which corresponds to the grid dimension (14) of a board with regard to the outer measurements thereof, is divided into fields (5) by means of longitudinal and transverse struts (13a, 13b), wherein modular partial-dimension boards (7; 7ff) filling out the grid dimension (14) can be inserted into the fields (5) while supported on the exterior framing pipes (12) of the support rack (6) and/or the struts (13a, 13b), and support racks (6) positioned next to each other are supported at the corners thereof by the adjustable feet (2).

Description

Double floor system in data centers and server rooms, especially as pressure floor with ventilation supply

The invention relates to a double floor system consisting of arranged in a grid with the measure of strung together, supported at the corners by feet on the unfinished floor, removably installed individual panels in data centers and server rooms, especially as pressure floor with ventilation supply.

Such a raised floor, which thus the construction of supported supported on the unfinished floor or foundation plates is understood, is known from DE 39 40 530 A1, there with the formation of a heater. The stands are placed on the unfinished floor in a predetermined grid of the standard size of one panel on the unfinished floor and support the corners of the laid-up panels which adjoin one another along the side edges so that a stand has four corners each from one another supporting adjacent plates.

When testing raised floors, all current standards (DIN EN 12825 "raised floors", DIN EN 13213 "hollow floors") are based on a panel dimension of 600 x 600 mm. In addition to the technical characteristics, three main usage criteria must be considered for the special construction of double floor systems in data centers and server rooms, namely accessibility as well as accessibility and pressure floor resistance. In the case of double floors installed as pressure floor in many data centers, cold air is introduced into the double floor via an appropriate air conditioning system, ie into the space between the unfinished floor and the floor the supported standard plates blown, which is deliberately omitted by specially designed ventilation plates. In addition, the raised floor accommodates the installation of power and network cabling. This results in difficult special conditions, which require a great deal of additional effort to meet in the combination of standard plates without mutual restriction, the desired functions or usage criteria.

This difficulty is due, in particular, to the fact that the dimensions of server cabinets are larger than the base area of the standard 600 mm x 600 mm panels and, for example, 600 mm x 800 mm, 800 mm x 800 mm, 800 mm x 1000 mm and 800 mm x 1200 mm mm. In the installation of server cabinets, therefore, there is the inevitable accepted situation that a cabinet, even if it is aligned flush with the bottom plate at the front, equal to occupy several of the standard plates. This has the consequence that the accessibility is considerably limited and ventilation panels, which are used for ventilation of server cabinets, can not be aligned properly.

The up to 1 to owning server cabinets also make it almost impossible, the covered by them, not as z. As ventilation panels running floor panels subsequently for the production of ventilation outlets (holes or other free passages) with a tool, such as a jigsaw to achieve. Apart from that, such a subsequently sawn floor slab would no longer meet the stability requirements in view of the large weights. The above applies equally to solid or closed floor slabs, which would have to be drilled locally to carry out the cable systems installed in the raised floor and thus destroyed.

The invention is therefore based on the object to provide a double floor system of the type mentioned without the described disadvantages, which in particular special fulfillment of all criteria of use, individually variable design allows.

This object is achieved in that a in its outer dimensions of the grid of a standard plate corresponding support frame is divided by longitudinal and transverse struts in fields, in the fields with support on outer framing tubes of the support frame and / or the struts the grid filling modular Teilmaßplatten can be inserted and lined up supporting frames are supported at their corners by the feet. The invention is based on the finding that the server cabinet dimensions in length and width all have a uniform dimension, namely 100 mm or 200 mm multiple times. By according to the invention, instead of a standard raised floor plate of 600 mm × 600 mm, a steel support frame having the same external dimensions is used, but divided into equal fields which rise in the grid dimension of the standard board or its external dimensions, partial dimension plates, preferably can be used 200 mm x 200 mm, variable, depending on the functions to be ensured.

It can thus achieve several benefits simultaneously. It is possible to fit the modular partial dimension plates accurately to the server cabinet dimensions deviating from the standard plate size, so that mutual, disadvantageous influence can be ruled out. The free accessibility is guaranteed, as further ventilation of server cabinets without over or shelter can be done, ie the base of the server cabinet is not on a closed base plate and leaves no area of a trained for ventilation floor plate. Necessary cable bushings do not require the destruction of a closed base plate more, since at this point from the outset a suitable open part of the scale plate can be provided. The combination of the modular partial dimension plates can be adapted at any time to a changed server room architecture by replacing them whereby optimal division is facilitated by the fact that the partial plates can be easily removed or inserted from the fields of the support frame.

An embodiment of the invention provides that the support frames are arranged with subdivided fields only in the installation of server cabinets and are provided in the walkable environment common standard plates. This makes it possible to take account of the fact that targeted, where a variable design and combination with functional partial plates is required, the supporting frames are provided with Felder subdivision, while the surrounding area can be designed unchanged with closed standard plates.

A preferred embodiment of the invention provides that the support frames and the longitudinal and transverse struts of rectangular tubes, in particular made of steel, consist, wherein the strut tubes are twice as wide as the outer framing tubes. It is thereby created the condition that not only adjacent supporting frames are flush with each other to the plant, but also in the surrounding area applied to the supporting frames standard plates. The framing tubes and the strut tubes (center struts) may alternatively be L, C or double T-sections, the latter in particular as strut tubes.

It is proposed according to the invention that the partial plates have an outer frame which is circumferentially formed with a brim-like, on the outer framing tubes and / or the strut tubes supporting collar. The removal and replacement with simultaneous support of Teilmaßplatten is thus possible in a simple manner, without the need for a tool.

If, according to one embodiment of the invention, the collar is designed to protrude with at least the width of the outer framing tubes, then probably in the joint area of adjacent supporting frames as well as in the joint area of the struts of the Fachgestelle adjacent inserted Teilmaßplatten reach a flush system with largely completely closed transition.

The above-described closed transition is also observed if, according to one embodiment of the invention, the standard plates adjacent to the support frames of the installation area in the surrounding area with the partial panels are at least tapered from top to bottom at the end faces facing the support frame. The conical faces facilitate the seamless application of standard plates.

In a preferred embodiment, all partial plates according to the invention have a unitary dimension and are designed as different types of functional elements. Thus, in a simple manner, all variants of the server cabinets, which allow the entry, the ventilation or the passage of cables, possible.

As inventive essential functional elements Teilmaßplatten are considered, which have a free passage window or a central foam rubber seal as a cable feedthrough, are designed as passive ventilation plate with perforations or active ventilation plate with a fan or as a closed surface having tread plate are formed.

According to a proposal of the invention, the partial plates or functional elements made of steel, stainless steel, plastic or metal casting. The standards with regard to fire protection, footfall sound insulation or dissipation capability can be fulfilled by choosing the right material. In existing plastic or metal casting functional elements or partial plates is proposed according to the invention that these are reinforced both in open and closed training by transverse and / or longitudinal ribs. The thus achieved stability in injection molding of plastic or metal casting easy to produce functional elements is further facilitated by the fact that the lower end edges of the transverse and / or longitudinal ribs are concave running along its length.

Further features and details of the invention will become apparent from the claims and the following description of illustrated in the drawings embodiments of the invention. Show it:

1 in a schematic configuration as a plan view of a double floor system with arranged in the lineup of server cabinets with compartment division supporting frames for holding with regard to their function variably selected Teilmaßpiatten and in the surrounding area of the erected server cabinets, undivided standard slats;

Figure 2 is a plan view in detail a compartment frame with subdivision;

Fig. 3 as a detail of Figure 1 fragmentary a support frame with inserted part size plate and support on the unfinished floor in the corner region of the support frame by a leveling foot or adjustable stand.

FIG. 4 is an illustration as in FIG. 3, in contrast, supplemented by an adjacent or adjacently supported supporting frame with an inserted partial dimension plate; Fig. 5 as a detail of a support frame two in the fields adjacent to each other inserted, partially shown Teilmaßplatten;

Fig. 6 as a detail of Fig. 1, a Eckabstützung one with Teilmaßplatten

(Partially illustrated) equipped support frame in the transition from the installation area Il of server cabinets to walk-around area I with lined up there to the supporting frames, fragmentary illustrated standard plates;

7 shows a detail of a first embodiment of a partial dimension plate made of plastic as a functional element with a free passage window for cable feedthrough, in perspective;

8 is a plan view of a partial dimension plate as a functional element for passive ventilation with perforations in the surface.

FIG. 9 shows the passive ventilating plate of FIG. 8 in a cross section; FIG.

10 is a plan view of a partial dimension plate as a functional element for active ventilation with an integrated fan.

FIG. 11 shows the active ventilation plate of FIG. 10 in a cross section; FIG.

Figure 12 is a plan view of a part measuring plate in another embodiment, which is provided for cable passage with a sponge rubber seal.

FIG. 13 shows the cable feed-through plate of FIG. 12 in a cross section; FIG.

14 is a plan view of a partial dimension plate as a functional element with a closed surface. FIG. 15 shows the partial dimension plate of FIG. 14 in a cross section; FIG.

FIG. 16 is a bottom perspective view of a partial plate made of plastic or cast metal as a closed pedal plate reinforced on the bottom side by intersecting ribs; FIG.

17 shows a perspective view of another plastic or metal casting partial dimension plate as an open functional element for ventilation and / or cable feedthrough; and

Fig. 18 in section a partial view of a built-up of plastic or metal casting Teilmaßplatten Fig. 16 or 17 raised floor with support of two juxtaposed, equipped with the Teilmaßplatten supporting frames and support to the raw floor by a leveling foot and - in the left half of the drawing - support of two adjoining each other in adjacent fields of the support frame inserted partial plates on a common strut of the support frame.

1 shows a double bottom 1 formed in a data center or server room, which comprises a total of plates 7, 7 a, 7 b and 11 supported by feet 2 (see FIG composed. In a set-up area I he is there designed for simplicity, only with solid lines box-shaped indicated server cabinets 4 arranged in fields 5 of support frames 6 Teilmaßplatten 7 or 7a and 7b. Of the partial plates 7 only a few are shown here, for example, designed as a passive ventilation plate 7a, which is provided in its surface in rows with holes 8 (see Figures 8 and 9), and as a cable bushing 7b, the one in its circumferential Frame 9 fixed sponge rubber seal 10 has (see Figures 12 and 13). By contrast, in the walk-in surrounding area II adjacent to the installation area I, the raised floor does not have any partial slabs, but usual standard slabs 11 whose dimensions are a multiple of the slabs 7. The standard plates 11 are supported as the support frames 6 at all its corners by feet 2, of which in Fig. 1 crawled in phantom circled only the feet 2 are shown on which four juxtaposed supporting frames 6 and / or partial plates 7 are supported together.

A illustrated in Fig. 2 as a detail support frame 6 can be seen that it is limited by outer framing tubes 12, which have a smaller width than the compartment of the fields 5 intersecting arranged longitudinal and transverse struts 13a and 13b. Both the framing tubes 12 and the strut tubes 13a, 13b in the exemplary embodiment consist of rectangular tubes (compare FIGS. 5 and 6). The support frame 6 corresponds in its limited by the outer framing tubes 12 dimension of the outer dimensions of a standard plate 11 predetermined pitch 14 (see Fig. 1). However, the subdivision into fields 5 for partial plates 7 or 7 ff to be inserted therein makes it possible to arrange functional partial dimension plates in the installation area I of the server cabinets 4 in a targeted and variable manner while maintaining the grid dimension 14.

Of the taking into account the functional particulars for any modular combination in the fields 5 of the support frames 6 of the server rack installation area I Teilmaßplatten 7 are in addition to the already described passive ventilation plates 7a (Fig. 8 and 9) and the foam rubber cable grommet plates 7b ( Figs. 12 and 13) in the drawings, other embodiments shown, and that of Fig. 7 with a inside a free passage window 15 having further cable entry plate 7c, which is made here of plastic. FIGS. 10 and 11 show the partial size plate 7 with an integrated fan 16 as a functional element of an active ventilation plate 7d, and FIGS. 14 and 15 as a tread plate 7e with a closed surface 17.

While the above-described Teilmaßplatten 7 in the formation of the functional elements 7a, 7b, 7c, 7d and 7e advantageously made of stainless steel or steel, shown in FIGS. 16 and 17 Teilmaßplatten 7 in the closed design of FIG. 16 as a functional element 7f and in the open according to Fig. 17 construction as a functional element 7g made of plastic. These plastic partial plates 7 and / or functional elements 7f, 7g are reinforced by transverse ribs 18 and longitudinal ribs 19, the lower end edges 20 of which extend in a concave manner over their ends ending in a projecting collar 21 (compare FIG. 16) of the outer frame 9.

Such a collar 21 is formed in the case of all part-size plates 7 or functional elements 7 a to 7 e in the region of the outer frame 9, in the embodiment according to FIGS. 3 to 6 as a comparable bristle-like projection 22. This protrudes with one of the widths of the outer framing tubes 12 of the support frame 9 corresponding length. When in adjacent fields 5 of the support frame 9 with support on the strut tubes 13 a, 13 b inserted partial plates 7 can thereby achieve a virtually seamless transition in the joint area, as shown in Fig. 3. Above all, it is possible, as shown in Fig. 6, also standard panels 11 of the surrounding area I adjacent to the narrower outer framing tubes 12 of the support frame 6 to line up completely. This is also the case when the standard plates 11 on their framing tube 12 or support frame 6 facing end face 23 are tapered from top to bottom, which simplifies the installation.

FIG. 18 shows the structure of a double bottom 1 with partial dimension plates 7 as plastic functional elements 7 f and / or 7 g according to FIGS. 16 and 17. know is a Eckabstützung by a adjustable foot 2 of two adjacent with their outer framing tubes 12 supporting frames and the inserted therein Teilmaßplatten 7 and 7 f, 7 g and the support of two in adjacent fields of the support frame inserted Teilmaßplatten 7 and 7 f, 7 g on a wide longitudinal and / or transverse strut 13 a, 13 b of the support frame.

LIST OF REFERENCE NUMBERS

1 double floor

2 adjustable foot

3 unfinished floor (underground)

4 server cabinet

5 field

6 support frame

7 partial plates

7a passive ventilation plate

7b foam rubber cable entry plate

7c another embodiment of a cable entry plate

7d active ventilation plate

7e footboard

7f closed plastic or metal casting functional element

7g open plastic or metal casting functional element

8 holes

9 External frame (of the partial plates) 0 Sponge rubber gasket 1 Standard plate 2 External framing tubes 3a, b Longitudinal and transverse struts (strut tubes, center struts) 4 Pitch 5 Free passage window 6 Blower 7 Closed surface 8 Transverse rib 9 Longitudinal rib 0 Lower stimulus edge (of ribs 18 , 19) Collar brim-like projection (as a collar) face (the standard plates) installation area surrounding area

Claims

claims

1. double floor system consisting of arranged in a grid (14) with the measure of juxtaposed at the corners by feet on the unfinished floor (3) supported, removably installed individual panels in data centers and server rooms, especially as pressure floor with ventilation supply, characterized in that a support frame (6) corresponding in its external dimensions to the grid dimension (14) of a panel is subdivided into panels (5) by longitudinal and transverse struts (13a, 13b), the panels (5) being supported on the outer framing tubes (FIG. 12) of the support frame (6) and / or the struts (13a, 13b) the modular dimension (14) filling modular Teilmaßplatten (7; 7ff) can be inserted and lined up supporting frames (6) are supported at their corners by the adjustable feet (2) ,

2. false floor system according to claim 1, characterized in that the supporting frames (6) with subdivided fields (5) are seconded only in the installation area (I) of server cabinets (4) and in the walkable environment (II) usual standard plates (11) are provided.

3. double floor system according to claim 1 or 2, characterized in that the supporting frames (6) and the longitudinal and transverse struts (13a, 13b) consist of rectangular tubes, wherein the strut tubes (13a, 13b) twice as wide as the outer framing tubes (12 ) are.

4. double floor system according to one of claims 1 to 3, characterized in that the Teilmaßplatten (7, 7 ff) have an outer frame (9), the circumferentially with a brim-like, on the outer framing tubes (12) and / or the strut tubes ( 13a, 13b) supporting collar (21, 22) is formed.

5. double floor system according to claim 4, characterized in that the collar (21; 22) is formed projecting with at least the width of the outer framing tubes (12).

6. double floor system according to claim 4 or 5, characterized in that in the surrounding area (II) adjacent to the supporting frames (6) of the installation area (I) with the partial panels 7; 7 ff) laid standard plates (11) at least on the support frame facing end surfaces (23) are tapered from top to bottom.

7. double floor system according to one of claims 1 to 6, characterized in that all partial plates (7; 7 ff) have a unitary dimension and are designed as different types of functional elements (7a, 7b, 7c, 7d, 7e, 7f, 7g).

8. double floor system according to claim 7, characterized in that the functional element as a with a inside a free passage window (15) having cable feed-through plate (7c, 7b) is formed.

9. double floor system according to claim 7, characterized in that the functional element with a central sponge rubber seal (10) as a cable feedthrough plate (7b, 7c) is formed.

10. double floor system according to claim 7, characterized in that the functional element with perforations (8) as a passive ventilation plate (7a, 7g) is formed.

11. double floor system according to claim 7, characterized in that the functional element with an integrated fan (16) as an active ventilation plate (7d) is formed.

12. double floor system according to claim 7, characterized in that the functional element as a closed surface (17) having tread plate (7e, 7f) is formed.

13. double floor system according to one of claims 1 and 7 to 12, characterized in that the partial dimension plates (7) or functional elements (7a to 7e, 7f, 7g) made of steel, stainless steel or plastic.

14 double floor system according to claim 13, characterized in that plastic existing functional elements (7f, 7g) both in open and closed training of Teilmaßplatten (7) by transverse and / or longitudinal ribs (18, 19) are reinforced.

15. double floor system according to claim 14, characterized in that the lower end edges (20) of the transverse and / or longitudinal ribs (18; 19) are concave running along its length.