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EP0813030A1 - Appareil contrÔleur de formation de givre - Google Patents

Appareil contrÔleur de formation de givre Download PDF

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Publication number
EP0813030A1
EP0813030A1 EP96109236A EP96109236A EP0813030A1 EP 0813030 A1 EP0813030 A1 EP 0813030A1 EP 96109236 A EP96109236 A EP 96109236A EP 96109236 A EP96109236 A EP 96109236A EP 0813030 A1 EP0813030 A1 EP 0813030A1
Authority
EP
European Patent Office
Prior art keywords
straight sections
heating element
openings
monitor according
receiving housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP96109236A
Other languages
German (de)
English (en)
Inventor
Günter Petz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ewt Elektrogerate & Co KG GmbH
Original Assignee
Ewt Elektrogerate & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ewt Elektrogerate & Co KG GmbH filed Critical Ewt Elektrogerate & Co KG GmbH
Priority to EP96109236A priority Critical patent/EP0813030A1/fr
Publication of EP0813030A1 publication Critical patent/EP0813030A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/02Details
    • H05B3/04Waterproof or air-tight seals for heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00Stoves or ranges heated by electric energy
    • F24C7/06Arrangement or mounting of electric heating elements
    • F24C7/062Arrangement or mounting of electric heating elements on stoves

Definitions

  • the invention relates to a frost monitor with a supply and exhaust air openings for a convection air flow receiving housing, in particular made of plastic and with an electrical heating element.
  • this object is achieved by a tubular heating element with two straight connections having network connections and a spirally wound tubular heating element section with two deflection bends arranged in the area of the end facing away from the network connections and a single deflection bend arranged at a distance from the end facing the network connections, whereby the extend two deflection bends radially offset from each other with different distances to the network connections.
  • the two deflection bends are preferred and the straight sections of the tubular heating element are formed in mutually parallel planes, while the individual deflection bend is directed obliquely to the planes of the two deflection bends.
  • the straight sections of the tubular heater have thermally inactive zones over first areas adjoining the network connections, and that a thermally active second area formed by sections of the straight sections and the deflection bend is connected to the thermally inactive zones.
  • the thermally inactive zones in the area of the mains connections prevent damage, e.g. Corrosion on these and contribute to the uniform heat dissipation over predetermined areas to the interior of the receiving housing.
  • the tubular heating element with the straight sections preferably the end regions having the network connections
  • the fixation can be done arbitrarily, e.g. by screwing.
  • measures for fixing the carrier board in the receiving housing are provided.
  • the carrier board can be held in the receiving housing, for example by means of clamping means.
  • the carrier board can also be oriented in any manner in the receiving housing, preferably inclined at an angle to the vertical longitudinal orientation of the receiving housing, and can be fixed in the receiving housing.
  • the carrier board has a number of openings for warm air dissipation directly next to the through-openings for the straight sections of the tubular heater and in areas at a distance from the through-openings.
  • the openings can be of any size, number and spacing from one another.
  • 1 denotes the housing of a frost monitor, which has supply air openings 2 in the base area and 3 exhaust air openings 4 in the front side for a convection air flow passing through the receiving housing 1.
  • a board 5 (Fig. 4) is fixed, which serves as a support for a tubular heater 6 (Fig. 2,3).
  • the tubular heater 6 has two straight sections 6 ', 6' 'which, for fixing the tubular heater 6 on the carrier board 5, pass through through openings 7 of the carrier board 5 and on the carrier board 5, e.g. are held by screw 8 or clamp body.
  • the straight sections 6 'and 6' 'of the tubular heater 6 are followed by two deflection bends 9 and 10 at one end and a single deflection bend 11 in the area of the other end.
  • the deflection bend 9, 10 and the straight pipe sections 6 ′, 6 ′′ essentially extend, as shown in FIG. 4, in parallel planes to one another, while the deflection bend 11 is directed obliquely to the parallel planes.
  • the straight pipe sections 6 ', 6'' have a first thermally inactive zone 16 at the ends facing the network connections 12, which on the one hand ensures damage-free fastening of the tubular heating element 6 to the support plate 5 and which also supports the uniformity of heat emissions to the convection air flow.
  • the two deflection bends 9, 10 are offset from one another in the longitudinal direction of the tubular heating element 6 and are formed at different distances from the mains connections 12. The transferred training the deflection bend 9, 10 leads to heat emission zones extending largely over a wide area of the tubular heating element 6, which preclude the formation of temperature peaks.
  • a number of openings 14 for warm air dissipation are provided directly next to the lead-through openings 7 of the circuit board 5.
  • 7 further areas 15 are provided in the support plate 5 with openings 14 for warm air discharge in addition to the through openings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
EP96109236A 1996-06-10 1996-06-10 Appareil contrÔleur de formation de givre Withdrawn EP0813030A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96109236A EP0813030A1 (fr) 1996-06-10 1996-06-10 Appareil contrÔleur de formation de givre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96109236A EP0813030A1 (fr) 1996-06-10 1996-06-10 Appareil contrÔleur de formation de givre

Publications (1)

Publication Number Publication Date
EP0813030A1 true EP0813030A1 (fr) 1997-12-17

Family

ID=8222875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96109236A Withdrawn EP0813030A1 (fr) 1996-06-10 1996-06-10 Appareil contrÔleur de formation de givre

Country Status (1)

Country Link
EP (1) EP0813030A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2052227A (en) * 1979-06-29 1981-01-21 Taylor J Improvements in Electric Immersion Heaters
WO1990009672A1 (fr) * 1989-02-14 1990-08-23 Strix Limited Dispositif de chauffage destine a etre immerge
EP0456173A1 (fr) * 1990-05-11 1991-11-13 I.R.C.A. S.P.A. Industria Resistenze Corazzate Ed Affini Elément de chauffage d'air forcé pour sèche-linges
US5278936A (en) * 1991-12-23 1994-01-11 Steve Shao Thermostatically controlled portable electric space heater with automatic temperature setback for energy saving

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2052227A (en) * 1979-06-29 1981-01-21 Taylor J Improvements in Electric Immersion Heaters
WO1990009672A1 (fr) * 1989-02-14 1990-08-23 Strix Limited Dispositif de chauffage destine a etre immerge
EP0456173A1 (fr) * 1990-05-11 1991-11-13 I.R.C.A. S.P.A. Industria Resistenze Corazzate Ed Affini Elément de chauffage d'air forcé pour sèche-linges
US5278936A (en) * 1991-12-23 1994-01-11 Steve Shao Thermostatically controlled portable electric space heater with automatic temperature setback for energy saving

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