Frame rack with module carriers and a ventilating installation

• US 5,999,403 A
• Filed: 04/24/1998
• Issued: 12/07/1999
• Est. Priority Date: 05/09/1997
• Status: Expired due to Fees

• Current Assignee: Alcatel SA (Nokia Corporation)
• Original Assignee: Alcatel SA (Nokia Corporation)
• Inventors: Neustadt, Alf
• Primary Examiner(s): TOLIN, GERALD P
• Application Number:
  US09/065,976
• Time in Patent Office: 592 Days
• Field of Search: 415/60, 415/219.1, 415/220, 454/184, 165/80.3, 165/122-126, 312/236, 312/223.1, 174/15.1, 174/16.1, 361/690-695, 361/687, 361/831, 361/724-727, 361/796, 361/797, 361/802, 361/803
• US Class Current: 361/695
• CPC Class Codes: H05K 7/1425 of standardised dimensions, e.g. 19"-subrack
• CPC Class Codes: H05K 7/20572 within cabinets for removing heat from sub-racks, e.g. plenum

Abstract

In a cabinet (1) for telecommunications engineering, with a frame rack containing at least one module carrier (2) designed to receive plug-in units, and a ventilating installation for cooling the plug-in units, the ventilating installation comprises at least one fan insert (13) with several vertically blowing axial fans, which can be plugged in and integrated into the module carrier (2). The fan insert (13) is located under transverse supports of the module carrier (2) and has at least one plug connector at the rear, which makes contact with a secondary plug connector provided on the rear wiring panel (10).

Claims

1. A frame rack for telecommunications engineering with at least one module carrier (2, 2'"'"') containing a rear wiring panel (10) which has plug connectors (11) for insertable plug-in units (9), and with at least one ventilating installation containing at least one vertically blowing axial fan (20) for cooling the plug-in units (9), characterized in that the ventilating installation comprises at least one fan insert (13) that houses the at least one vertically blowing axial fan (20), each fan insert having at least one plug connector (16) at the rear which makes contact with a secondary plug connector (17) on the rear wiring panel (10) of the at least one module carrier, and further characterized in that a control module (22) for the individual control of said at least one vertically blowing axial fan (20) is located to the front of the rear wiring panel (10), and is electrically connected to the plug connectors (16, 17) for said at least one fan insert (13) and such that the control module is plugged in between two plug connectors (11) used to make contact with the plug-in units (9).

2. A frame rack for at least one module carrier as claimed in claim 1, characterized in that the module carrier (2, 2'"'"') is equipped with several guide rails (14, 15) that are attached to transverse supports (4, 5) on the bottom, for inserting the slide strips of the fan insert (13).

3. A frame rack with module carriers as claimed in claim 2, characterized in that the guide rails (14, 15) have an arrangement on the transverse supports (4, 5), and the plug connectors (17) for each fan insert (13) have an arrangement on the rear wiring panel (10), which makes it possible to plug in three fan inserts (13) next to each other.

4. A frame rack with module carriers as claimed in claim 3, characterized in that each fan insert (13) comprises a drawer (18) and two axial fans (20) which are wired to a rear plug connector (16) on the drawer (18).

5. A frame rack with module carriers as claimed in claim 4, characterized in that the drawer (18) is a one-piece injection-molded plastic part with two ventilators (19) placed behind each other in the plug-in direction, each able to receive a vertically blowing axial fan (20).

6. A frame rack with module carriers as claimed in claim 5, characterized in that the frame rack is equipped with several module carriers (2) and a central control unit (23), wherein each module carrier has an associated control module (22) that is connected electrically via bus connections to a central control unit (23) located in the frame rack.

7. A frame rack with module carriers as claimed in claim 1, characterized in that the guide rails (14, 15) have an arrangement on the transverse supports (4, 5), and the plug connectors (17) for each fan insert (13) have an arrangement on the rear wiring panel (10), which makes it possible to plug in three fan inserts (13) next to each other.

8. A frame rack with module carriers as claimed in claim 1, characterized in that each fan insert (13) comprises a drawer (18) and two axial fans (20) which are wired to a rear plug connector (16) on the drawer (18).

9. A frame rack with module carriers as claimed in claim 8, characterized in that the drawer (18) is a one-piece injection-molded plastic part with two ventilators (19) placed behind each other in the plug-in direction, each able to receive a vertically blowing axial fan (20).