EP0401330B1 - Radiateur a rayons infrarouges a quartz enfichable - Google Patents

Radiateur a rayons infrarouges a quartz enfichable Download PDF

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Publication number
EP0401330B1
EP0401330B1 EP90900070A EP90900070A EP0401330B1 EP 0401330 B1 EP0401330 B1 EP 0401330B1 EP 90900070 A EP90900070 A EP 90900070A EP 90900070 A EP90900070 A EP 90900070A EP 0401330 B1 EP0401330 B1 EP 0401330B1
Authority
EP
European Patent Office
Prior art keywords
housing
infrared radiator
holding means
plug
radiator according
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.)
Expired - Lifetime
Application number
EP90900070A
Other languages
German (de)
English (en)
Other versions
EP0401330A1 (fr
Inventor
Reinhard Hilscher
Christian Ullrich
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.)
TQS Thermal Quarz Schmelze GmbH
Original Assignee
TQS Thermal Quarz Schmelze 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 TQS Thermal Quarz Schmelze GmbH filed Critical TQS Thermal Quarz Schmelze GmbH
Publication of EP0401330A1 publication Critical patent/EP0401330A1/fr
Application granted granted Critical
Publication of EP0401330B1 publication Critical patent/EP0401330B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/0033—Heating devices using lamps
    • H05B3/009—Heating devices using lamps heating devices not specially adapted for a particular application
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders

Definitions

  • the present invention relates to a pluggable quartz infrared heater with a housing and at least one heating element arranged therein, with electrical connections, plug connections on the rear of the housing and with a heat-resistant, insulating holder for the heating element or elements in the housing, which also have recesses for receiving electrical Has connecting elements.
  • Such a quartz infrared radiator is known from DE-OS 36 19 919.
  • both mechanical and electrical plug connections are arranged independently of one another on the rear of the housing.
  • the pluggability of the quartz infrared heater already has enormous advantages over the hitherto customary wiring, with the known pluggable quartz infrared heater the electrical connections from the heating elements are still conventional in an insulating holder for the heating elements Plug contacts arranged on the back of the housing lead there and are connected there to the associated part of a plug or a socket.
  • the electrical connector on the back of the housing must usually provide heat-resistant electrical insulation for the connection to the electrical connections of the heating elements, which are made from a ceramic in accordance with the usual requirements for thermal resistance, insulation ability and mechanical properties Housing for the connector exists.
  • the arrangement and attachment of such a connector with a ceramic housing on the back of an infrared radiator means an additional effort in the manufacture of the quartz infrared radiators, which were otherwise provided on their back only with a series of ceramic sleeves insulated connecting wires.
  • the present invention is based on the object To create a pluggable quartz infrared radiator with the features mentioned above, which is easier and cheaper to manufacture than the known pluggable quartz infrared radiator.
  • the heat-resistant, insulating holder has a space for receiving at least part of a plug connection and at least one opening for carrying out a part of a plug connection which is not accommodated in the space and which preferably protrudes from the rear of the housing.
  • part of a plug connection can also extend from the mounting plate in the direction of the infrared radiator, which is pushed into the opening when it is brought together with the infrared radiator, as a result of which the connection with the plug connection part accommodated in the space of the holder is established.
  • an embodiment of the invention is preferred in which the protruding part of the plug connection and the part of the plug connection accommodated in the space of the holder are integrally connected to one another.
  • these plug-in connection parts are L-shaped form angled flat plug, the first leg of which is completely accommodated in the space provided for the holder and the second leg of which is passed through the opening of the holder, emerges on the rear of the housing and can be plugged together with a suitable counterpart.
  • plug connection in the sense of this application is to be interpreted in such a way that it includes both a connection consisting of a socket and a plug and a plug or socket on its own insofar as it consists of one included in the space of the bracket and from the bracket and also the rear of the housing projecting part.
  • the holder according to the present invention has space for parts of two plug connections.
  • an electrical heating element requires two electrical connections which expediently end on one and the same holder and merge into the two plug connections arranged on this holder.
  • the preferred embodiment of an infrared radiator according to the present invention also has two brackets for heating elements arranged on opposite side walls of a housing, but only one of these brackets has both required plug connections.
  • the two opposite brackets or parts thereof can be designed identically and have the corresponding space for receiving plug connections, without the need for plug connectors on both brackets. This can be particularly useful for manufacturing reasons, since it reduces the number of different parts to be manufactured.
  • the holder is designed in two parts on one side of the housing, the two parts lying flat against one another in the fully assembled state and having cutouts in their contact surfaces which lie opposite one another and thus define the space for the parts of plug connections.
  • the two parts of a holder are taken apart, then the corresponding parts of a plug connection are simply inserted from the contact surface into the recesses provided therein and the second part of the holder is suitably placed with its recesses above it, so that the plug connection parts in the room , which is formed by the opposite recesses.
  • at least one slot extends from the cutouts to the side of the holder parts facing the rear wall of the housing, as a result of which an opening for the passage of a plug connection part is formed from the space to the outside of the housing.
  • the aforementioned L-shaped angled tab can also be inserted with its one leg into the corresponding space from the contact surface of one of the parts, the other leg of the L-angled connector then extending outward through the slot. As soon as the two parts of the holder with the inserted connector parts lie against each other, they are inserted into the housing and fastened in this state.
  • the holder is preferably made of ceramic, since ceramic is a very good heat-resistant and at the same time electrically good insulating material, which also has sufficient mechanical strength for receiving and holding the heating elements and also the plug parts.
  • the housing has a continuous rear wall
  • at least one opening in the rear wall of the housing must of course be provided at the level of the holder, it being particularly advantageous if it extends from the edge of the opening and parallel and extends into the housing interior at least one tab at a distance from opposite side walls of the housing. This tab can be used to attach the bracket.
  • the distance of the tab to a side wall corresponds to the thickness of the holder, the opening being arranged in the rear wall of the housing between the tab and this side wall.
  • the holder can be inserted between the tab and a housing side wall so that part of its side facing the rear wall lies exactly above or below the opening in the rear wall of the housing, so that the protruding connector parts can be provided at this point.
  • the holder also has at least one continuous transverse opening which runs essentially parallel to the rear edge of the housing and the heating element or the heating elements.
  • Fastening elements can extend through such a transverse opening to the housing side wall or to a tab.
  • the tab and the side wall have openings aligned with one another and with the continuous transverse opening, since in this way the holder can be riveted to the tab and the housing side wall in a simple manner. In this way, it is advantageously avoided that the rivet ends press directly on the holder, which can easily lead to breakage of the latter, particularly with ceramic holders.
  • the two ends of the rivet engage on the side wall or a tab, these being pressed against the intermediate holder and at the same time distributing the forces exerted by the rivet over a larger area of the holder.
  • the transverse opening in the holder can also be reinforced by a metal sleeve.
  • the part lying on the housing side wall is wider in the direction perpendicular to the rear wall of the housing than the other part of the holder and has a receptacle for heating elements in its projecting area.
  • the space for accommodating plug-in connection parts then lies in the area in which the two parts of the holder lie one on top of the other, while, independently of this, a receptacle for the heating elements is provided in the protruding area of one part of the holder.
  • This part lying on the side wall with the receptacle for the heating elements can then be used as an ordinary holder for heating elements, regardless of the arrangement of plug-in connection parts. If you then want to arrange plug elements on the holder, the second part of a holder is simply added, which must be located in the area in which it connects to the rear wall of the housing, since plug parts are to extend through the rear wall of the housing.
  • the space for receiving the plug connection and the corresponding parts of the holder are thus in the area between the heating elements and the rear wall of the housing.
  • the electrical connections of the heating elements are preferably connected directly to the plug connection parts accommodated in the space of the holder, preferably by welding.
  • the connection must be sufficiently heat-resistant and electrically safe.
  • the heat dissipation via such plug connections is sufficiently good so that the temperatures at the plug contacts remain below 300 ° C., so that a plug connection can be implemented with commercially available flat plugs.
  • a mechanical plug pin is also arranged on the rear edge of the housing, which has a resilient plug socket, which for example is at a suitable distance from the electrical plug parts on a mounting plate is arranged, can be inserted.
  • heating elements 2 which consist of quartz tubes in which a coil of an electrical heating wire is arranged.
  • the quartz tubes or the heating elements 2 are held in recesses or receptacles 16 which are provided in the parts 6 'of a holder 6.
  • the parts 6 'of the bracket 6 are arranged on opposite side walls 12 of the housing 1 of a quartz infrared radiator.
  • the bracket 6 shown on the right side of Figure 1 consists of two parts 6 'and 6 ⁇ , the part 6' in the direction perpendicular to the bottom 15 of the housing 1 is wider or higher than the part 6 ⁇ , so that the heating elements 2 protrude beyond the part 6 ⁇ into the receptacle 16 of the part 6 '.
  • Around the hole 13 around the part 6 ' has a cylindrical projection 19 which fits into a radial extension of the bore 13' engages on part 6 ⁇ , so that after the engagement the two parts 6 'and 6 ⁇ are fixed relative to each other.
  • a metal sleeve 18 is arranged which has a flange projecting beyond the shoulder 19, so that the part 6' can be fastened directly to the side wall 12 of the housing 1 with a rivet.
  • the two-part bracket 6 is inserted in the assembled state between a side wall 12 and a bent up from the bottom 15 of the housing 1 tab 11 so that the parts 6 'and 6' remain in firm engagement with each other.
  • a rivet for fastening the bracket 6 can also be arranged.
  • Figures 3a-f show different views or sectional views of part 6 'of the bracket 6.
  • Figure 3a you can see the part 6' from the side lying against the side wall 12.
  • 3c which is a view of part 6 'from the inside of the housing 1, provides a more precise impression.
  • the receptacle 16 is connected via a channel 17 to the recess 7 'or the slot 8', which in the fully assembled state are opposite recesses 7 ⁇ and 8 ⁇ and thus a space 7th and form an opening 8 for receiving and implementing parts of a plug connection.
  • the plug connection 5 lies with its leg 5 'in the recess 7' and extends with its leg 5 ⁇ in the recess 8 'and protrudes with a flat plug part from the slot 8' of part 6 in the illustration of Figure 3c to the right.
  • Part 6 ' is mirror-symmetrical with respect to a central plane running horizontally in FIG. 3c. So there are a recess 7 'and a slot 8' and a channel 17 for receiving the connector 5 and the electrical connections 3 are provided on the right and left of this level.
  • FIGS. 5a-c Only the housing 1 is shown in FIGS. 5a-c. It can be seen that two openings 10 are punched out of the base, the material of the base 15 of the housing 1 not being completely stamped out on the innermost edge of the opening 10, but in the form of a tab at an angle of essentially 90 ° to the base 15 the housing 1 is bent inwards.
  • the tab has a bore 14 ', which is aligned with a bore 14 which is attached in the side wall 12.
  • the side wall 12 opposite side wall has a corresponding hole for rivet attachment of the part 6 ', while in the space between the tabs 11 and the side wall 12, the assembled parts 6' and 6 'can be used essentially suitable.
  • the pin or plug-in attachment 4 shown in FIG. 1 can either be designed in the form of an otherwise commercially available holding mandrel or can be provided with an external thread so that it can be screwed into the interior of a holding mandrel provided with a corresponding internal thread.
  • Such holding mandrels usually have a hexagonal base at their base, so that they can easily be screwed onto a corresponding threaded pin.
  • Such a holding mandrel also has a tip for insertion between spring clamps and a tapering neck behind the conical tip, so that the holding mandrel is held on the constriction thus formed by means of corresponding holding clamps with a predetermined force.
  • Quartz infrared emitters are usually arranged in large numbers on a mounting plate, so that spring clips for such holding mandrels and plug connections can be provided on the mounting plate in a corresponding grid dimension for the electrical connector parts 5 'projecting from the openings 8 and 10 on the rear of the housing.
  • Such an electrical plug connection is shown in FIG. 7, the flat plug part 5 'being inserted into the space 20 between the rear wall 21 and the bent contact flanks 22 of a plug connection 23.
  • the plug connection 23 in turn has three further flat plug connections at the other end, which can be used both for further contacting and interconnection of several infrared radiators, but at the same time also serve as cooling surfaces for the dissipation of heat, which from the heating elements 2 via the plug connection 5, the plug connection 23 is supplied.
  • the new quartz infrared heater is simpler in construction and easier to manufacture than the known pluggable infrared heater. It is only necessary to redesign the brackets 6 for the heating elements 2, which are required anyway, so that they can simultaneously serve as brackets for plug connections 5.

Landscapes

  • Resistance Heating (AREA)

Abstract

Radiateur à rayons infrarouges à quartz doté d'un boîtier (1), à l'intérieur duquel se trouve au moins un élément de chauffage (2), de raccords électriques (3), de connecteurs à fiche (4, 5), agencés sur la face arrière du boîtier, et d'un support (6) isolant résistant aux températures élevées pour l'élément de chauffage. On obtient un radiateur à rayons infrarouges à quartz plus simple et plus économique de la manière suivante: le support (6) isolant résistant aux températures élevées comporte un espace (7), où est agencé au moins une partie d'un connecteur à fiche (5), ainsi qu'au moins une ouverture, par laquelle passe une partie d'un connecteur à fiche (5) qui n'est pas agencée dans cet espace (7) et qui dépasse du boîtier (1).

Claims (15)

  1. Radiateur infrarouge à quartz, comportant une enveloppe (1) et au moins un élément chauffant (2) disposé à l'intérieur, des raccordements électriques (3), des connecteurs (4, 5) sur le côté arrière de l'enveloppe, et un support isolant (6), résistant à la chaleur, destiné à l'élément chauffant (2), et qui comporte aussi des évidements destinés au logement des éléments de connexion électrique, caractérisé en ce que les évidements destinés au logement des éléments de connexion électrique définissent dans le support (6) un espace (7) destiné au logement d'au moins une partie d'un connecteur (5), et au moins une ouverture permettant la traversée d'une pièce, qui n'est pas logée dans l'espace (7), d'un connecteur (5), laquelle pièce dépasse de l'enveloppe (1).
  2. Radiateur infrarouge selon la revendication 1, caractérisé en ce que les pièces du connecteur (5) sont contiguës et forment un ensemble monobloc.
  3. Radiateur infrarouge selon la revendication 1 ou 2, caractérisé en ce que le connecteur (5) est une fiche plate repliée en L, dont la première branche (5′) est entièrement logée dans l'espace (7), qui lui est destiné, du support (6), et dont la deuxième branche (5˝) traverse l'ouverture (8) du support (6), pour ressortir sur le côté arrière de l'enveloppe, en pouvant se rattacher à un pendant adapté (9).
  4. Radiateur infrarouge selon l'une des revendications 1 à 3, caractérisé en ce que le support (6) possède un espace (7) destiné aux pièces de deux connecteurs (5).
  5. Radiateur infrarouge selon l'une des revendications 1 à 4, caractérisé en ce que le support (6) est, sur un côté de l'enveloppe, réalisé en deux parties, les deux parties (6′, 6˝) s'appuyant l'une contre l'autre en pleine surface à l'état entièrement monté, et comportant dans leurs surfaces d'appui des évidements (7, 7˝), opposés l'un à l'autre et qui ainsi définissent l'espace (7) destiné aux pièces des connecteurs (5).
  6. Radiateur infrarouge selon l'une des revendications 1 à 5, caractérisé en ce qu'au moins une fente (8, 8˝) part de chacun des évidements (7, 7˝), pour aller vers le côté du support (6) dirigé vers la paroi arrière de l'enveloppe, ce qui forme une ouverture (8) permettant la traversée de pièces des connecteurs.
  7. Radiateur infrarouge selon l'une des revendications 1 à 6, caractérisé en ce que le support (6) est en céramique.
  8. Radiateur infrarouge selon l'une des revendications 1 à 7, caractérisé en ce qu'on prévoit, à hauteur du support (6), au moins une ouverture (10) dans la paroi arrière (15) de l'enveloppe, et au moins une languette (11), s'étendant dans le volume intérieur de l'enveloppe à partir du bord de l'ouverture (10), et parallèlement, et à une certaine distance, des parois latérales opposées de l'enveloppe (1).
  9. Radiateur infrarouge selon la revendication 8, caractérisé en ce que la distance de la languette (11) à une paroi latérale (12) correspond à l'épaisseur du support (6), l'ouverture (10) aménagée dans la paroi arrière (15) de l'enveloppe étant disposée entre la languette (11) et cette paroi latérale (12).
  10. Radiateur infrarouge selon l'une des revendications 1 à 9, caractérisé en ce que le support (6) comporte au moins une ouverture transversale traversante (13), disposé essentiellement parallèlement à la paroi arrière (15) de l'enveloppe et à l'élément chauffant (2), pour assurer une fixation par rivets.
  11. Radiateur infrarouge selon les revendications 8 ou 9 et 10, caractérisé en ce que la languette (11) et la paroi latérale (12) comportent des ouvertures (14), en alignement l'une avec l'autre et avec l'ouverture transversale traversante (13), pour assurer une fixation par rivets du support (6) à l'enveloppe (1).
  12. Radiateur infrarouge selon l'une des revendications 1 à 11, caractérisé en ce que la partie (6′), qui s'appuie contre la paroi latérale (12) de l'enveloppe, du support (6), est dans la direction perpendiculaire à la paroi arrière (15) de l'enveloppe plus large que l'autre partie (6˝) du support (6), et comporte dans sa zone en saillie un logement (16) destiné à des éléments chauffants ou à des tubes de quartz (2).
  13. Radiateur infrarouge selon l'une des revendications 1 à 12, caractérisé en ce que les raccordements électriques (3) des éléments chauffants (2) sont directement connectés, de préférence par soudage, aux éléments de connecteur (5′) logés dans l'espace (7) du support (6).
  14. Radiateur infrarouge selon l'une des revendications 1 à 13, caractérisé en ce qu'on prévoit sur le support (6) au moins une gaine de connexion (17), pour permettre le passage d'un raccordement électrique (3), entre l'élément chauffant (2) et l'élément de connecteur (5) logé dans l'espace (7).
  15. Radiateur infrarouge selon l'une des revendications 1 à 14, caractérisé en ce qu'on prévoit sur le côté arrière de l'enveloppe (1) une broche (4) qui est conçue comme un goujon de retenue, ou encore comporte un moyen destiné à recevoir un élément mécanique du connecteur.
EP90900070A 1988-12-18 1989-12-18 Radiateur a rayons infrarouges a quartz enfichable Expired - Lifetime EP0401330B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3842641 1988-12-18
DE3842641A DE3842641A1 (de) 1988-12-18 1988-12-18 Steckbarer quarz-infrarotstrahler
PCT/DE1989/000777 WO1990007253A1 (fr) 1988-12-18 1989-12-18 Radiateur a rayons infrarouges a quartz enfichable

Publications (2)

Publication Number Publication Date
EP0401330A1 EP0401330A1 (fr) 1990-12-12
EP0401330B1 true EP0401330B1 (fr) 1995-03-01

Family

ID=6369484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90900070A Expired - Lifetime EP0401330B1 (fr) 1988-12-18 1989-12-18 Radiateur a rayons infrarouges a quartz enfichable

Country Status (7)

Country Link
US (1) US5142609A (fr)
EP (1) EP0401330B1 (fr)
JP (1) JP2741634B2 (fr)
DE (2) DE3842641A1 (fr)
ES (1) ES2069063T3 (fr)
RU (1) RU2100038C1 (fr)
WO (1) WO1990007253A1 (fr)

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FI915731A0 (fi) * 1991-12-05 1991-12-05 Derek Henry Potter Foerfarande och anordning foer reglering av temperaturen i ett flertal prov.
DE4210519C1 (fr) * 1992-03-31 1993-09-09 Heraeus Noblelight Gmbh, 6450 Hanau, De
JP2933523B2 (ja) * 1996-03-13 1999-08-16 日本電気エンジニアリング株式会社 データ送受信装置
CN1071015C (zh) * 1998-10-08 2001-09-12 关福彦 一种暖气片丝头
EP2230466A1 (fr) * 2007-04-10 2010-09-22 Electrolux Home Products Corporation N.V. Dispositif de cuisson, en particulier dispositif de cuisson domestique

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US2227739A (en) * 1937-08-21 1941-01-07 John H Pollard Combined bracket and lighting device
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US3253243A (en) * 1961-08-07 1966-05-24 Insto Gas Corp Heater tube assembly
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US3309499A (en) * 1962-10-25 1967-03-14 Joseph J Carr Radiant heater
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FR1392260A (fr) * 1964-04-29 1965-03-12 Appareil émetteur de radiations infra-rouges avec éléments de raccordement souples et étanches
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US4161622A (en) * 1976-12-22 1979-07-17 Drayer Sanford A Insulator assembly having novel feedthrough portion
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US4406944A (en) * 1981-03-23 1983-09-27 Radiant Technology Corp. Devices for mounting infrared lamps in furnaces
US4531047A (en) * 1982-07-28 1985-07-23 Casso-Solar Corporation Clip-mounted quartz tube electric heater
GB8316304D0 (en) * 1983-06-15 1983-07-20 Emi Plc Thorn Heating apparatus
EP0176027B1 (fr) * 1984-09-22 1989-02-01 E.G.O. Elektro-Geräte Blanc u. Fischer Elément chauffant à rayons pour appareils de cuisson
JPH0227970Y2 (fr) * 1985-05-08 1990-07-27
DE3619919C2 (de) * 1986-06-13 1995-11-09 Thermal Quarz Schmelze Gmbh Quarz-Infrarotstrahler
NL8700734A (nl) * 1987-03-30 1988-10-17 Philips Nv Elektrische kookeenheid en elektrisch kooktoestel daarvan voorzien.

Also Published As

Publication number Publication date
EP0401330A1 (fr) 1990-12-12
DE58909071D1 (de) 1995-04-06
JPH03502851A (ja) 1991-06-27
DE3842641A1 (de) 1990-06-21
JP2741634B2 (ja) 1998-04-22
WO1990007253A1 (fr) 1990-06-28
ES2069063T3 (es) 1995-05-01
US5142609A (en) 1992-08-25
RU2100038C1 (ru) 1997-12-27

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