Heating device for installation in a switchgear cabinet

Patent metadata

Field	Value
Publication number	US-9338827-B2
Application number	US-201113261447-A
Country	US
Kind code	B2
Filing date	Mar 4, 2011
Priority date	Mar 29, 2010
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

The invention relates to a heating device for installation in a switchgear cabinet, having a support and a heating body, wherein the support replaceably accommodates the heating body in a holder. Simple and secure mounting of the heating body on the support is achieved in that the holder has a contact surface to which limiting elements are attached, in that the limiting elements immobilize the heating body in a form-fitting manner transversely to the contact surface plane, and in that one or a plurality of locking elements are provided in the region of the holder, which immobilize the heating body in a form-fitting manner perpendicularly to the contact surface.

First claim

The invention claimed is:

1. A device for transferring heat from a heating element to the interior of a switchgear cabinet, having a support and a heatable body, wherein the support replaceably accommodates the heatable body in a holder comprising a contact surface which defines a contact surface plane and is arranged upright between limiting elements spaced apart from and parallel to one another, wherein the holder includes one or a plurality of snap-lock elements that immobilize the heatable body within the holder such that the limiting elements immobilize the heatable body in a form-fitting manner transversely to the contact surface plane, wherein
the limiting elements are discontinuous in an end region of the contact surface to form the snap-lock elements,
the holder comprises a guiding slope inclined at an angle <90° with respect to the contact surface that is configured to guide the heatable body into the holder during assembly, and
the heatable body comprises a recess. and the holder comprises a protrusion engaging the recess of the heatable body or the snap-lock element engages the recess of the heatable body.

2. The device of claim 1 , wherein the holder comprises an interface for heating bodies of varying length.

3. The device of claim 1 ; wherein the limiting elements are embodied as parallel webs, the heatable body abutting thereto via mounting bars formed thereon.

4. The device of claim 1 wherein the snap-lock elements are arranged such that they are locked with a mounting bar which is integrally formed with the heatable body and is embodied as a heat exchanger fin.

5. The device of claim 1 wherein two assembled bodies are attached to the holder which are spaced apart from one another and delimit a cable duct, the cable duct provides access to an electrical terminal of the heatable body, and one or both assembled bodies enclose an air duct which is spatially connected with an air guiding region of the heatable body.

6. The device of claim 5 wherein the cable duct can be closed by means of a removable cover which is snap-locked to the support.

7. The device of claim 1 wherein the heatable body is embodied as extruded profile with integrally formed heat exchanger fins and the heatable body comprises a base part having a heating element receptacle configured to receive the heating element.

Assignees

• Braun Ruediger
• Loh Friedhelm
• Rittal Gmbh & Co Kg

Inventors

• Braun Ruediger
• Loh Friedhelm

Classifications

• H05B3/06 Primary

  Heater elements structurally combined with coupling elements or holders · CPC title

• H02B1/56 Primary

  Cooling; Ventilation · CPC title

• H02B1/565 Primary

  for cabinets · CPC title

• H05B3/50

  heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins · CPC title

• H02B1/26

  Casings; Parts thereof or accessories therefor · CPC title