WO2008110245A1

WO2008110245A1 - Control box for receiving electronic system components

Info

Publication number: WO2008110245A1
Application number: PCT/EP2008/001145
Authority: WO
Inventors: Klaus Meike; Wolfgang Weller; Erwin Eckl
Original assignee: SCHäFER WERKE GMBH
Priority date: 2007-03-14
Filing date: 2008-02-15
Publication date: 2008-09-18
Also published as: DE102007048640A1; EP2135496A1

Abstract

The invention relates to a 19' design control box (1) for receiving insertable and extractable electronic system components (3; 3 a, 3 b), comprising a housing formed from vertical and horizontal profile beams (12, 13), and lateral walls, a base, a cover wall and a rear wall or rear door in addition to a front door that are secured thereto and an air-conditioning device (4) that is operated by means of ventilators (5) and by circulating air for cooling the system components. Said air-conditioning device (4) is arranged, on the base side, below the system components (3; 3 a, 3 b) and a cold and a hot channel (8, 9) are embodied towards the front side or the rear side.

Description

Control cabinet for receiving electronic system components

The invention relates to a control cabinet in 19-inch construction technology for receiving retractable and withdrawable electronic system components with a housing consisting of vertical and horizontal profile struts attached thereto side walls, floor, ceiling wall and rear wall or door and a front door and for cooling the System components has a powered by fans and air circulation air conditioner.

A control cabinet or computer rack for receiving system components, such as servers, hard disk systems or the like plug-in, in the internationally standardized 19-inch construction technique is known from DE 20 2006 007 275 1) 1. This control cabinet has a combined air-liquid cooling system, on the one hand cooling air passes through an air inlet plate in the cabinet interior. On the other hand, a cooling device comprises a heat sink arranged on a system component group and a liquid distributor, which is in flow communication with the heat sink via a feed line and a return line. The liquid distributor is arranged outside in the front area of the control cabinet.

Despite the need for additional space requirements for the installation of an air conditioner there is a demand for a space-saving design of the computer racks, but nevertheless as many, preferably 50, such system components or bays should accommodate. In addition, the housing must be dustproof and splashproof. The invention is therefore an object of the invention to provide a generic cabinet that meets all the above requirements, while allowing a simpler, modular design and ensures greater reliability.

This object is achieved in that the air conditioner side, is arranged below the system components and a cold and a hot runner to the front or back are formed. This can be achieved without additional lateral space cooling of the 19-inch system components or bays with a defined cold and hot runner and forced guidance of cold air flow through the system components, the system components are coated above and below the cold air flow. Even if the rear wall or door and / or the side walls of the cabinet are removed or opened, there is no break in the cold air flow.

An embodiment of the invention provides that the air conditioner is designed as a plug-in unit. This allows for easy replacement, for which only one of the insertion opening occlusive aperture must be removed.

A preferred embodiment of the invention provides that the system components in the horizontal and vertical position are inserted into the housing, wherein the vertically inserted system components are arranged in both sides of the horizontally inserted system components housing compartments. It is hereby exploited over the horizontally inserted system components larger width of the air conditioner to achieve optimized placement of the cabinet volume to accommodate a maximum number (preferably 50) of system components. Because the housing compartments only take the space available anyway by the width excess of the air conditioner. According to an advantageous proposal of the invention has - based on each of the side walls of the cabinet housing - the one housing compartment has a greater depth than the other housing compartment. The width excess of the air conditioner is thus optimally utilized by the division of the housing compartments with different depths. Because the deeper housing compartments, the system components or bays in edgewise position with their narrow end faces inserted in the insertion direction and side by side, while in the less deep housing compartment, the system components or bays in contrast rotated by 90 ° in series behind the other flat lying inserted.

A preferred embodiment of the invention provides that both the vertical profile struts and the horizontal profile struts are formed uniformly and have a cross section in an inner and an outer profile strut chamber dividing partition, which isolates the housing interior to the environment. The inside of the cabinet is thus subject to no external, adverse for the circulation of air, but especially for the dust and splash water tightness adverse influences. Because the created by the partition, circumferential separation level is the cabinet inside safely encapsulated. Thus, even in the profile walls or - webs of the outer profile strut chamber for attaching the housing panel (walls, doors, lids or the like) provided outside rows of holes for mounting screws no longer allow access to the cabinet interior. The closed design of the profile struts also ensures a high resistance torque and high torsional stiffness.

If according to a proposal of the invention abutting horizontal profile struts and vertical profile struts, which is always the case in the lower and upper housing corner points, are interconnected by a circumferentially closed Winkeleckstück, the closed, dust and splashproof construction is further favored. If the Winkeleckstück, for example, a Zinkdruckguss- or steel casting, two mutually orthogonal profile approaches and a downwardly angled profile approach, with the profiled approaches immerse in the outer profile strut chambers, can be easily close the open, abutting ends of the profile struts and the Winkeleckstücke connect to the profile struts for a secure cohesion.

For this purpose, an embodiment of the invention provides that holes are provided for attachment to the vertical and horizontal profile struts in the walls formed by angled webs of the vertical profile struts and horizontal profile struts rows for attachment of attachments and in the profile approaches the Winkeleckstücks. In the rows of holes of the profile struts are on the one hand to the attachment of the housing cover already described holes in the webs or walls of the outer profile strut chamber and on the other hand to rows of holes in the webs or walls of the inner profile strut chambers for attachment of the interior organization (19-inch system components , Shelves, cable fasteners or the like) of the control cabinet or computer rack.

In this case, it is recommended that at least the holes of the rows of holes of the vertical and horizontal profile struts are formed reinforced material with sleeve-like passages. This contributes to the fact that the self-tapping screws used to attach the attachments do not spin even after repeated use.

If, according to one embodiment of the invention, the free ends of the profile projections of the angle corner piece are provided with inlet slopes, the simple insertion of the angle corner piece is supported in the profile struts and the outer profile strut chambers. According to the embodiment, it can be provided that the angle corner piece is formed with a vertically extending core hole. This allows the simple, subsequent attachment of feet, rollers, eye bolts or the like.

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

1 is a perspective overall view of a without wall paneling or doors or the like shown assembled from profile struts housing frame of a cabinet or computer rack with bottom-mounted air conditioner;

FIG. 2 shows the housing frame according to FIG. 1 in front view; FIG.

Figure 3 is a perspective view as a detail of the marked in Figure 1 with "X" corner region of the profile strut housing frame.

Fig. 4 is a representation corresponding to Figure 3 with the other hand for the connection of the profiles also inserted Winkeleckstück.

Figure 5 as a detail in an overall perspective view of the inserted into the abutting profile ends of Figure 4 Winkeleckstück.

Fig. 6, the vertical profile strut of Fig. 3 in plan view with a schematic

Representation of wall or web parts of the abutting horizontal profile struts; and Fig. 7 as a detail a cross section of the identical horizontal and vertical profile struts.

Of a computer rack or cabinet 1 is in Figs. 1 and 2, essentially only the housing frame formed from profile struts or the housing 2 with it below the system components 3, of which in horizontal installation position only a few are indicated, arranged, designed as a plug-in unit Air conditioner 4 shown. Its fans 5 ensure inside the cabinet for an air circulation for cooling the system components 3, which are lapped by the indicated by arrow 6 cooling air streams. Because these branch off from an illustrated by the upwardly facing arrows 7 total air flow of a trained inside the cabinet cooling channel 8 and then fall in the inside of the cabinet opposite formed hot runner 9 according to the downward arrows 10, so that they according to arrow 11 back in the air conditioner 4 and thus enter the new cooling circuit.

As can be seen in more detail in FIG. 2, the air conditioner 4 inserted into the housing frame 2 consisting of horizontal profile struts 12 and vertical profile struts 13 has a greater width than the system components 3 inserted horizontally one above the other, of which in turn only a few are indicated. The width excess of the air conditioner 4 is utilized to accommodate further system components 3a and 3b, respectively. For this purpose, additional housing compartments 14a, 14b are formed on the left and on the right in the housing frame 2 of the switchgear cabinet 1, next to the horizontally inserted system components 3, which are likewise covered by the cooling air flow (compare FIG. The housing compartment 14a has a greater depth, and system components 3a inserted therein with their end faces in an upright position than the housing compartment 14b into which the system components 3b are rotated by 90 ° with respect to the direction of insertion of the system components 3a and inserted flatly behind one another. This room layout allows an occupancy of fifty system components, namely, for example, with thirty-five horizontally inserted system components 3 and in the housing compartment 14a nine housed system components 3a and the housing compartment 14b six housed system components 3b.

The horizontal and vertical profile struts 12, 13 of the housing frame or housing 2 are all of identical construction and have a profile configuration that can be seen more clearly in FIGS. 6 and 7 in particular. This is characterized by a parting plane in the form of a cross-section of the profile struts dividing partition 15. This subdivides the profiled struts 12, 13 into an inner and an outer profiled strut chamber 16a, 16b, the inside and outside being related to the installation position, i. the inner profile strut chamber 16a is the Schrankbzw. Facing the housing interior. Especially in the together with the partition wall 15, the outer profile strut chamber 16b limiting webs or walls 18a, 18b for attachment and attachment of the housing cover by self-tapping screws 19, as indicated in Fig. 7, provided rows of holes 20 and 21 (see FIGS. 3 and 4) of the horizontal and vertical profile struts 12, 13 are thus completely sealed off towards the inside. About the holes of these rows of holes 20, 21 can enter from the outside no ambient air into the cabinet interior. The in the webs or walls of the profile struts of the inner profile strut chamber 16a for fixing the inner organization also provided two rows of holes 22, 23 are anyway facing the cabinet interior and thus unimpaired by the external environment.

The horizontal and vertical profile struts 12, 13 at the same time provide sealing edges 24 and sealing surfaces 25, which when attaching or screwing the housing cover parts 26, as indicated in Fig. 6, including interposed seals 27 in these areas for the required tightness to the cabinet interior provides. From Fig. 7 it follows that the holes of the rows of holes 20 to 23 with sleeve-like passages 28 are material reinforced, which is a mehrma- Liges screwing and unscrewing the self-tapping screws 19 allows.

For the completely closed, dense frame construction, the horizontal and vertical profile struts 12, 13 are closed by an angle corner piece 29 in the ends open in the upper and lower corners (see Fig. 3), as shown in FIG. The corner piece 29 shown in detail in FIG. 5 has two profiled shoulders 30a, 30b which are arranged orthogonally to one another and a profile projection 30c which is angled downwards. At their free ends, the profile approaches are provided with inlet slopes 31. These facilitate the insertion of the Winkeleckstücks 29 in the horizontal and vertical profile struts 12, 13, wherein the rectangular profile approaches 30a, 30b dip into the outer profile strut chambers 16b of the horizontal profile struts 12 and the downwardly angled profile projection 30c in the outer profile strut chamber 16b of the vertical profile strut 13. For screw fastening with the profile struts holes 32 are provided in the profile approaches 30a to c, which are brought into alignment with the holes of the rows of holes 20 and 21 of the profile struts 12, 13, as shown in FIG. A centrally and vertically disposed in the corner piece 29 Kemloch 23 allows it to fix, for example, a leveling foot or a role.

List of reference numerals:

1 computer rack / control cabinet

2 case frame

3; 3a, 3b system components

4 air conditioner

5 fans

6 cooling air flow

7 arrow

8 cooling channel

9 hot runner

10 arrow

11 arrow

12 horizontal profile strut

13 vertical profile strut

14a, 14b housing compartment

15 partition wall

16a Inner profile strut chamber

16b External profile strut chamber

18a, 18b bridge / wall

19 Self-tapping screw 0 Punch row (outside) 1 Punch row (outside) 2 Punch row (inside) 3 Punch row (inside) 4 Sealing edge 5 Sealing surface 6 Housing covering part 7 Seal 8 Threading Nosing piece

profile approach

run-in slope

hole

core hole

Claims

claims

1. Control cabinet (1) in 19-inch mounting technology for receiving retractable and withdrawable electronic system components (3, 3 a, 3 b) with a housing consisting of vertical and horizontal profile struts (12, 13) with attached side walls, bottom , Ceiling wall and rear wall or door and a front door and for cooling the system components by means of fans (5) and air circulation operated air conditioner (4), characterized in that the air conditioner (4) on the bottom side, below the system components (3; 3b) is arranged and a cold and a hot runner (8; 9) are formed to the front or back.

2. Switchgear cabinet according to claim 1, characterized in that the air conditioner (4) is designed as a plug-in unit.

3. Switchgear cabinet according to claim 1 or 2, characterized in that the system components (3, 3 a, 3 b) in a horizontal and vertical position in the housing (2) can be inserted, wherein the vertically inserted system components (3 a, 3 b in both sides next to the horizontal inserted system components (3) formed housing compartments (14a, 14b) are arranged.

4. Switchgear cabinet according to claim 3, characterized in that relative to each of the side walls of the housing (2) has a housing compartment (14 a) has a greater depth than the other housing (14 b).

5. Switchgear cabinet, in particular according to one of claims 1 to 4, characterized in that both the vertical profile struts (12) and the horizontal profile struts (13) are formed uniformly and a cross section in an inner and an outer profile strut chamber (16 a, 16 b) dividing Have partition (15), which isolates the housing interior to the environment.

6. Switchgear cabinet according to claim 5, characterized in that abutting horizontal profile struts (12) and vertical profile struts (13) by a circumferentially closed Winkeleckstück (29) are interconnected.

7. Switchgear cabinet according to claim 6, characterized in that the Winkeleckstück (29) has two mutually orthogonal extending profile projections (30 a, 30 b) and a downwardly angled profile projection (30 c), wherein the profile approaches (30 a to c) in the outer profile strut chambers ( 16b).

8. Switchgear cabinet according to claim 7, characterized in that the free ends of the profile projections (30 a to c) are provided with inlet slopes (31).

9. Switchgear cabinet according to one of claims 5 to 8, characterized in that the Winkeleckstück (29) with a vertically extending core hole (33) is formed.

10. Switchgear cabinet according to one of claims 5 to 9, characterized by in the formed by angled webs walls (18 a, 18 b) of the vertical profile struts (12) and horizontal profile struts (13) provided rows of holes (20, 21, 22, 23) for attachment of attachments and holes (32) provided in the profiled shoulders (30a-c) of the angle corner piece (29) for attachment to the vertical and horizontal profile struts (12, 13).

11. Switchgear cabinet according to claim 10, characterized in that at least the holes of the rows of holes (20, 21, 22, 23) of the vertical and horizontal profile struts (12, 13) with sleeve-like passages (28) are material-reinforced.