# US 9,039,501 B2 · Device for cooling an electrical cabinet

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- Number: US 9,039,501 B2
- Document ID: US9039501B2
- Status: Granted
- Kind: B2
- Application number: 13/171,908
- Filed: 2011-06-29
- Published: 2012-01-12
- Granted: 2015-05-26
- Earliest claimed: 2010-07-08
- Assignees: Kapsch TrafficCom AG
- Applicants: Peter Spannagl; Leopold Hackl
- Inventors: Peter Spannagl; Leopold Hackl
- Web page: https://patentgrep.com/patent/US9039501B2

## CPC

- H05K 7/2059: {within rooms for removing heat from cabinets, e.g. by air conditioning device}
- E01F 9/696: Overhead structures, e.g. gantries; Foundation means specially adapted therefor
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- E01F: ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE

## Abstract

Device for cooling an electrical cabinet including a hollow upright beam having a lower end, an upper end and a cavity inside, the upright beam having an air inlet at the lower end and an air outlet at the upper end, the upright beam supporting the electrical cabinet on a side of the upright beam. The device further includes a first flow connection formed between the interior of the electrical cabinet and the cavity of the upright beam at a level of the lower end of the electrical cabinet; a second flow connection formed between the interior of the electrical cabinet and the cavity of the upright beam at a level of the upper end of the electrical cabinet; and a sealing element at an intermediate level between the first and second flow connections to block the cavity of the upright beam.

## Claims

### Claim 1

A device for cooling an electrical cabinet having an interior, a lower end and an upper end, comprising:
a hollow upright beam having a lower end, an upper end, a cavity inside, an air inlet at the lower end, and an air outlet at the upper end, the upright beam supporting the electrical cabinet on a side of the upright beam;
a first flow connection formed between the interior of the electrical cabinet and the cavity of the upright beam at a level of the lower end of the electrical cabinet;
a second flow connection formed between the interior of the electrical cabinet and the cavity of the upright beam at a level of the upper end of the electrical cabinet; and
a sealing element at an intermediate level between the first and second flow connections to block the cavity of the upright beam, the device thus configured to pass airflow, the airflow entering from outside through the air inlet, passing through the electrical cabinet, and exhausting outside through the air outlet at the upper end.

### Claim 2 (depends on 1)

The device according to claim 1, wherein the upright beam is a steel upright of a bridge spanning a road and the air inlet is formed as a discharge opening for condensation at the lower end of the steel upright.

### Claim 3 (depends on 1)

The device according to claim 1, wherein the sealing element is a curable sealing foam injected into the cavity.

### Claim 4 (depends on 2)

The device according to claim 2, wherein the sealing element is a curable sealing foam injected into the cavity.

### Claim 5 (depends on 1)

The device according to claim 1, wherein the electrical cabinet is fitted with a fan for forced convection.

### Claim 6 (depends on 2)

The device according to claim 2, wherein the electrical cabinet is fitted with a fan for forced convection.

### Claim 7 (depends on 3)

The device according to claim 3, wherein the electrical cabinet is fitted with a fan for forced convection.

### Claim 8 (depends on 1)

The device according to claim 1, wherein the air outlet of the upright beam includes an extractor fan.

### Claim 9 (depends on 2)

The device according to claim 2, wherein the air outlet of the upright beam includes an extractor fan.

### Claim 10 (depends on 3)

The device according to claim 3, wherein the air outlet of the upright beam includes an extractor fan.

### Claim 11 (depends on 4)

The device according to claim 4, wherein the air outlet of the upright beam includes an extractor fan.