EP1643804B1 - Réchauffeur d'air - Google Patents

Réchauffeur d'air Download PDF

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Publication number
EP1643804B1
EP1643804B1 EP04023222A EP04023222A EP1643804B1 EP 1643804 B1 EP1643804 B1 EP 1643804B1 EP 04023222 A EP04023222 A EP 04023222A EP 04023222 A EP04023222 A EP 04023222A EP 1643804 B1 EP1643804 B1 EP 1643804B1
Authority
EP
European Patent Office
Prior art keywords
air heater
feature
contact
housing
contact pins
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
EP04023222A
Other languages
German (de)
English (en)
Other versions
EP1643804A1 (fr
Inventor
Lukas Gisler-Reinhard
Pius Studer
Leo Wallimann-Durrer
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.)
Leister Process Technologies
Original Assignee
Leister Process Technologies
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
Priority to EP04023222A priority Critical patent/EP1643804B1/fr
Application filed by Leister Process Technologies filed Critical Leister Process Technologies
Priority to DE502004002564T priority patent/DE502004002564D1/de
Priority to ES04023222T priority patent/ES2278256T3/es
Priority to AT04023222T priority patent/ATE350880T1/de
Priority to JP2005263854A priority patent/JP4394619B2/ja
Priority to US11/230,079 priority patent/US7123822B2/en
Priority to CNB2005101071503A priority patent/CN100452537C/zh
Publication of EP1643804A1 publication Critical patent/EP1643804A1/fr
Priority to HK06108555A priority patent/HK1088493A1/xx
Application granted granted Critical
Publication of EP1643804B1 publication Critical patent/EP1643804B1/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
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7088—Arrangements for power supply

Definitions

  • the present invention relates to an air heater with a connection housing for the connection of the electrical power supply and the air to be heated and a heater attached to the terminal housing via a carrier body, wherein in the connection housing at least two line voltage leading contact elements are arranged.
  • air heaters are well known and are widely used in industry.
  • the air heaters for the most varied manufacturing processes either heat the air supplied by an external air source (blower) or generated by a blower connected directly to the air heater.
  • the air is passed through a connection housing for the electrical supply or past it and then heated by a heating element.
  • conductive rubber expresses that it is a component with rubber-like properties, which is electrically conductive. However, it is not necessarily made of rubber.
  • the electrical conductivity of conductive rubbers is created by enriching the insulating base material with conductive materials. So long used such contact devices for electrical contacting of LCD displays with the tracks of populated circuit connection plates (DE 88 08 947 U1).
  • Object of the present invention is therefore to propose such an air heater, in which by the construction and arrangement of the terminals for the transmission of electrical heating power cost and fast assembly is possible.
  • the connection should be easily possible for an associated control device.
  • the air heater according to the invention has a connection housing for the electrical power supply and the air to be heated, and a heater attached to the connection housing via a carrier body.
  • the carrier body for transmitting the heating power via a plug connection in the form of plug contact pins on the carrier body and corresponding plug contact parts in the connection housing is connected to a connection plate on which, for example, terminals for the power connection.
  • the connection housing in the housing wall facing the heating element has at least two insertion openings aligned with the plug contact pins arranged on the support body.
  • the plug contact pins are mounted in a receiving angle in the connection housing opposite the terminal housing, which is usually formed metallic, electrically isolated.
  • the receiving angle in the terminal housing is inserted and has at least two molded domes, which perform through the insertion and insulating the plug contact pins.
  • other dome for other connections may be present.
  • the dome serve in addition to the insulation as a spacer during assembly for the carrier body.
  • contact elements and at least one fastening element for the connection plate are provided. Due to this design of the receiving angle as an insert is a quick installation possible, while ensuring a stable implementation of the electrical heating energy with appropriate insulation against the terminal housing. For this purpose, preferably the receiving angle can be latched to the connection housing
  • the plug contact pins can be connected to the contact tracks of the connection plate via rubber-elastic, conductive connection elements in order to tapped reference voltages for the control device in order to connect signals to a control device (microprocessor) arranged on the connection plate.
  • conductive rubber is used for contacting and connecting the contact surfaces of the terminal plate and the plug contact pins, which is processed into a rubber-elastic electrically conductive molding.
  • the inherently insulating base material is enriched with electrically conductive particles of metal or carbon, whereby the conductive rubber is conductive. By varying the conductive material or its proportion, the conductance of the connecting element can be changed. In this way, the voltage at the plug contact pins can be detected and evaluated via the control device arranged on the connection plate.
  • the connecting elements can also be used for current limiting.
  • the elastic connecting element is held in a trained as a U-shaped half-shell bearing cup at the bottom of the receiving angle.
  • the inclusion of the elastic connecting element in the bearing shell causes a positionally accurate positioning and a support, so that the connecting element does not deform uncontrollably when building the contact pressure.
  • the terminal housing takes on the receiving angle on the plug-in contact parts and the corresponding plug contact pins existing connector and the control device in a sealed chamber.
  • the plug contact pins are designed as cylindrical contact sockets, which are arranged on an annular carrier body.
  • the corresponding plug contact parts are pin-shaped and isolated electric single stranded conductive, which are connectable via terminal blocks with the connection plate of the control device.
  • the carrier body has a plurality of plug contact pins, of which lead at least two mains voltage.
  • the non-mains voltage leading plug pins are used to connect sensors of the controller and / or for grounding metallic equipment parts.
  • the voltages or signals required for regulation by the control device are removed at the plug contact pins, which can be contacted by the rubber-elastic connecting elements.
  • the connecting element is made in one piece and homogeneous and has on its body a recess for receiving the plug contact pin.
  • the recess is adapted to the geometry and the dimensions of the plug contact pin and advantageously designed as a bore, wherein the inner circumference of the bore is slightly smaller than the outer circumference of the plug contact pin. If the plug contact pin penetrates the bore of the connecting element, the bore is widened, as a result of which the connecting element rests positively and with pressure on the jacket of the plug contact pin.
  • connection element on the side assigned to the connection plate has a contact pressure element for contacting the contact paths of the connection plate.
  • the pressing element protrudes from the body of the connecting element, is cylindrical and integrally formed on the body of the connecting element.
  • the pressing element may also have a different shape or be composed of several individual pressing elements.
  • the contacting of the contact tracks by pressing the connection plate to the mounted in the receiving angle connecting elements, which are penetrated by the plug contact pins. By fixing the terminal plate at the receiving angle, the connecting element is compressed and the contact pressure is maintained.
  • the carrier body on the side facing away from the connection housing on additional plug-in elements, in which the circularly arranged connection contacts of an electric heating element can be inserted.
  • the plug-in elements for the heating element are electrically connected to the plug contact pins of the carrier body.
  • the plug contact pins are arranged on the carrier body in a row which is aligned parallel to the bottom of the connection housing and the receiving angle. This makes it possible to arrange the connecting elements in the connection housing in a plane, whereby only one embodiment variant of the connecting element is needed.
  • the connector housing 6 shown in Figure 1 for receiving a mains voltage leading connector 3, 16 and an electrical control device 2 is provided with electrically conductive flexible connecting elements 1 for electrical contacting of arranged on a terminal plate 24, connected to electrical components contact paths and plug contact pins 16 of the connector 3, 16 equipped.
  • the connection and connection of the contact surfaces of the connection plate 24 and the plug contact pins 16 is effected by a rubber-elastic, electrically conductive connecting element 1.
  • the connecting element 1 is held in a U-shaped bearing shell 5 at the bottom of the connection housing 6 inserted receiving angle 27, whereby a positionally accurate positioning as well as a support.
  • the terminal housing 6 receives in the receiving angle 27, the plug contact parts 3 and the corresponding plug contact pins 16 in a closed chamber 14.
  • the plug contact pins 16 are designed as cylindrical contact sockets which are arranged on an annular support body 4.
  • the plug contact parts 3 are attached to electrical strands 17, which are connected to the connection plate 24 of the control device 2.
  • the contact carrier part 4 has four plug contact pins 16, of which lead at least two mains voltage.
  • the control device 2 is contacted with the plug contact pins 16 by three rubber-elastic connecting elements 1.
  • the connecting element 1 is made in one piece and homogeneous and has a bore 11 for receiving the plug contact pin 16.
  • the plug contact pin 16 penetrates the bore 11 of the connecting element 1, and is positively and with pressure on the jacket of the plug contact pin 16 at.
  • the connecting element 1 has, on the side assigned to the connection plate 24, a contact pressure element 9 for contacting the contact paths of the connection plate 24.
  • the pressing element 9 protrudes from the body 10 of the connecting element 1 forth. It is cylindrical and integrally formed on the body 10 of the connecting element 1.
  • the terminal housing 6 is designed in three pieces and consists of a housing body 12, a receiving angle 27 and a housing cover, not shown.
  • the housing body 12 has an air duct 19 for the passage of compressed air, wherein at the ends of the air duct 19, two connecting pieces 22, 23 are integrally formed on the housing body 12.
  • the connecting pieces 22, 23 are designed as inlet port 23 and outlet 22 and round in different sizes.
  • the outlet 22 receives the carrier body 4, which is annular and has air channels 18 for the passage of compressed air.
  • housing wall 15 of the housing body 12 and the receiving angle 27 are in the region of the outlet 22 with the plug contact pins 16 aligned housing openings 13 provided in the region of the outlet 22 with the plug contact pins 16, the rubber-elastic connecting elements 1 through the plug contact pins 16 through which the plug contact pins 16 are guided into the chamber 14 of the housing body 12.
  • the carrier body 4 has on its side facing away from the connector housing additional plug-in elements 19, in which the circularly arranged connection contacts 20 of an electric heating element 21 can be inserted.
  • the plug-in elements 19 for the heating element 21 are electrically conductively connected to the plug contact pins 16 of the carrier body 14.
  • the plug contact pins 16 are arranged on the carrier body 4 in a row which is aligned parallel to the bottom 8 of the connection housing 6 and the receiving angle 27.
  • the connecting elements 1 in the chamber 14 of the terminal housing 6 are arranged in a plane which is aligned with the mating connector parts 16 arranged in a row.
  • connection element 1 according to the invention shown enlarged in FIG. 2 is provided for electrical contacting and connection of the mating contact pin 16 with the conductor tracks of the connection plate 24.
  • the connecting element 1 has a cuboidal body 10 and a cylindrical attachment 9.
  • the cuboidal body 10 is penetrated by a bore 7. With the end face 25 of the attachment 9, the contact paths of the connection plate 24 and over the lateral surface 7 of the bore 11, the plug contact pins 16 are contacted.
  • Figures 3 and 4 show the air heater in the assembled state in section and in perspective view.
  • Figures 5 and 6 show a detailed view of the receiving angle 27 in a perspective view.
  • the plug contact pins 16 are impressedgesteckbar.
  • the dome 28 electrically isolate the plug contact pins 16 relative to the terminal housing 6 and simultaneously serve as spacers for the support body 4 relative to the housing wall 15.
  • the receiving angle 27 has a latching element 35 on the bottom 34 for latching to the connection housing 6. As a result, the receiving angle can be quickly inserted and fixed.
  • the domes 29 serve as lateral contact protection.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Resistance Heating (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • Cookers (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Percussion Or Vibration Massage (AREA)

Claims (10)

  1. Réchauffeur d'air avec un boîtier de raccordement (6) pour le raccordement de l'alimentation en énergie électrique et l'amenée de l'air à réchauffer et avec un élément chauffant (21) fixé par un corps de support (4) sur le boîtier de raccordement (6), au moins deux éléments de contact (3, 16) conduisant la tension du secteur étant disposés dans le boîtier de raccordement (6), caractérisé par le fait que
    le boîtier de raccordement (6) présente dans la paroi de boîtier (15) tournée vers l'élément chauffant (21) au moins deux ouvertures d'enfichage (13) pour le passage de fiches de contact (16),
    les fiches de contact (16) sont disposées sur le corps de support (4) et alignées avec les ouvertures d'enfichage (13) dans la paroi de boîtier (15) et les fiches de contact (16) sont logées dans une équerre de réception (27) du boîtier de raccordement (6) en étant isolés électriquement du boîtier de raccordement (6) et reliées par des éléments de contact à fiche (3) à une plaque de raccordement (24).
  2. Réchauffeur d'air selon la revendication 1, caractérisé par le fait que l'équerre de réception (27) peut être insérée dans le boîtier de raccordement (6) et présente des dômes (28) formés sur elle qui passent à travers les ouvertures d'enfichage (13) et isolent les fiches de contact (16) ainsi que des éléments d'appui (29) et au moins un élément de fixation (33) pour la plaque de raccordement (24).
  3. Réchauffeur d'air selon la revendication 1, caractérisé par le fait que l'équerre de réception (27) peut être encliquetée avec le boîtier de raccordement (6).
  4. Réchauffeur d'air selon l'une des revendications précitées, caractérisé par le fait que les fiches de contact (16) sont disposées en ligne ou sur une ligne sur le corps de support (4).
  5. Réchauffeur d'air selon l'une des revendications précitées, caractérisé par le fait que le corps de support (4) présente du côté opposé aux fiches de contact (16) des éléments d'enfichage (19) traversant le support de contacts (4) dans lesquels des contacts de raccordement (20) de l'élément chauffant électrique (21) sont enfichables.
  6. Réchauffeur d'air selon la revendication 5, caractérisé par le fait que les éléments d'enfichage (19) sont reliés de manière électroconductrice aux fiches de contact (16) sur le corps de support (4).
  7. Réchauffeur d'air selon l'une des revendications précitées, caractérisé par le fait que le corps de support (4) est de forme annulaire et présente des canaux d'air (18) pour le passage d'air comprimé.
  8. Réchauffeur d'air selon l'une des revendications précitées, caractérisé par le fait qu'au moins une fiche de contact (16) est reliée par un élément de liaison (1) à élasticité caoutchoutique, qui est disposé dans une coquille de support (5) de préférence en U, à des pistes de contact électrique de la plaque de raccordement (24) pour la transmission de signaux à un dispositif de commande installé sur la plaque de raccordement (24).
  9. Réchauffeur d'air selon la revendication 8, caractérisé par le fait que l'élément de liaison (1) est une pièce moulée en un bloc homogène en caoutchouc conducteur contenant du métal ou du graphite et présente des éléments de contact (7, 9) formés dessus pour contacter les pistes de contact électrique de la plaque de raccordement (24) ainsi que les fiches de contact (16).
  10. Réchauffeur d'air selon la revendication 8 ou 9, caractérisé par le fait que la liaison électrique de l'élément de liaison (1) avec les pistes de contact de la plaque de raccordement (24) est réalisée par compression de l'élément de liaison (1) lors de la fixation de la plaque de raccordement (24) sur le boîtier de raccordement (6).
EP04023222A 2004-09-29 2004-09-29 Réchauffeur d'air Expired - Lifetime EP1643804B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE502004002564T DE502004002564D1 (de) 2004-09-29 2004-09-29 Lufterhitzer
ES04023222T ES2278256T3 (es) 2004-09-29 2004-09-29 Calefactor de aire.
AT04023222T ATE350880T1 (de) 2004-09-29 2004-09-29 Lufterhitzer
EP04023222A EP1643804B1 (fr) 2004-09-29 2004-09-29 Réchauffeur d'air
JP2005263854A JP4394619B2 (ja) 2004-09-29 2005-09-12 空気加熱器
US11/230,079 US7123822B2 (en) 2004-09-29 2005-09-19 Air heater
CNB2005101071503A CN100452537C (zh) 2004-09-29 2005-09-28 空气加热器
HK06108555A HK1088493A1 (en) 2004-09-29 2006-08-01 Air heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04023222A EP1643804B1 (fr) 2004-09-29 2004-09-29 Réchauffeur d'air

Publications (2)

Publication Number Publication Date
EP1643804A1 EP1643804A1 (fr) 2006-04-05
EP1643804B1 true EP1643804B1 (fr) 2007-01-03

Family

ID=34926782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04023222A Expired - Lifetime EP1643804B1 (fr) 2004-09-29 2004-09-29 Réchauffeur d'air

Country Status (8)

Country Link
US (1) US7123822B2 (fr)
EP (1) EP1643804B1 (fr)
JP (1) JP4394619B2 (fr)
CN (1) CN100452537C (fr)
AT (1) ATE350880T1 (fr)
DE (1) DE502004002564D1 (fr)
ES (1) ES2278256T3 (fr)
HK (1) HK1088493A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101413476B1 (ko) 2013-04-10 2014-07-01 국방과학연구소 공기가열기
KR101622178B1 (ko) 2016-03-03 2016-05-18 국방과학연구소 냉각핀을 구비하는 인젝터를 포함하는 공기가열기
USD792662S1 (en) * 2016-05-27 2017-07-18 Billy Chen Pet dryer
USD838061S1 (en) * 2017-07-12 2019-01-08 Ningbo Iclipper Electric Appliance Co., Ltd. Pet hair blowing and sucking nursing machine
EP3544121B1 (fr) * 2018-03-19 2022-05-04 Mahle International GmbH Dispositif de chauffage électrique
KR102066491B1 (ko) * 2019-09-18 2020-01-15 국방과학연구소 공기 가열기 및 공기 가열기를 조립하는 방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4337584A (en) * 1980-09-05 1982-07-06 Johnson Lawrence D Heat pump grain dryer
JPS6027284B2 (ja) * 1981-06-23 1985-06-28 松下電工株式会社 ヘア−ドライヤ
US4531308A (en) * 1983-04-29 1985-07-30 Cactus Machinery Inc. Apparatus for conditioning hygroscopic plastic material
EP0306765B1 (fr) * 1987-09-05 1992-04-22 Robert Krups GmbH & Co. KG Sèche-cheveux à main
US4914834A (en) * 1989-04-11 1990-04-10 Sime Sylvan H Grain dryer
US5033208A (en) * 1989-12-13 1991-07-23 Kabushiki Kaisha Matsui Seisakusho Hopper dryer
IT1239248B (it) * 1990-05-11 1993-09-28 I R C A Ind Resistenze Corazza Elemento scaldante d'aria in convezione forzata particolarmente per asciugabiancheria
US5758017A (en) * 1996-02-22 1998-05-26 Western Optical Supply, Inc. Apparatus and method for heating eyeglass frames
DE19743461A1 (de) * 1997-10-01 1999-04-08 Buehler Ag Trockner-Wärmetauscher
US6079122A (en) * 1998-08-28 2000-06-27 Rajkovich; Thomas Russell Weighing dryer
DE50110692D1 (de) * 2001-01-24 2006-09-21 Leister Process Tech Heisslufteinrichtung

Also Published As

Publication number Publication date
ATE350880T1 (de) 2007-01-15
HK1088493A1 (en) 2006-11-03
CN100452537C (zh) 2009-01-14
JP2006098049A (ja) 2006-04-13
US20060068622A1 (en) 2006-03-30
DE502004002564D1 (de) 2007-02-15
EP1643804A1 (fr) 2006-04-05
US7123822B2 (en) 2006-10-17
ES2278256T3 (es) 2007-08-01
CN1755989A (zh) 2006-04-05
JP4394619B2 (ja) 2010-01-06

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