EP3073800B1 - Chauffage electrique - Google Patents

Chauffage electrique Download PDF

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Publication number
EP3073800B1
EP3073800B1 EP16165765.5A EP16165765A EP3073800B1 EP 3073800 B1 EP3073800 B1 EP 3073800B1 EP 16165765 A EP16165765 A EP 16165765A EP 3073800 B1 EP3073800 B1 EP 3073800B1
Authority
EP
European Patent Office
Prior art keywords
activation
power supply
heater according
activation pin
heater
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.)
Active
Application number
EP16165765.5A
Other languages
German (de)
English (en)
Other versions
EP3073800A1 (fr
Inventor
Patrick LeCoent
Walter Heidelberger
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.)
DBK David and Baader GmbH
Original Assignee
DBK David and Baader 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 DBK David and Baader GmbH filed Critical DBK David and Baader GmbH
Publication of EP3073800A1 publication Critical patent/EP3073800A1/fr
Application granted granted Critical
Publication of EP3073800B1 publication Critical patent/EP3073800B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance

Definitions

  • the invention relates to an electric heater.
  • Such electric heaters can be used, for example, in the blow-by system of internal combustion engines or for heating a tank of an SCR system (selective catalytic reduction). Examples of such electrical heaters are shown on the applicant's homepage (www.dbk-group.de). Accordingly, these have a heating section which can be inserted into a correspondingly designed receptacle of the component to be thermostated, for example a tank or a flow path of the blow-by gas. This heating section merges into a plug or contacting part, in which the power supply lines for the heater are arranged.
  • resistance elements for example PTC heating elements
  • PTC heating elements are used which are supplied with current via the power supply lines of the contacting part and lie as flat as possible on a wall area of the housing section, so that the heat can be transferred directly via the wall of the heating section and the adjacent wall of the component to be thermostatted is.
  • Another generic heater is for example from the US 4,395,623 A known.
  • the invention has for its object to provide an electric heater in which a good heat transfer is ensured with simple assembly.
  • the electric heater according to the invention has a heating section which can be inserted into a receptacle of a component to be thermostated.
  • the heater also has a heating element that can be energized via a power supply.
  • the heater is designed with an activation pin that can be adjusted from a release position to an activation position. In the release position, the heating element is in a mounting position with play, in which the heating element is not or only insignificantly in thermal contact with the wall or in electrical contact with the power supply. By moving the activation pin into the activation position, the heating element or the power supply is moved into an operative position in which the thermal and / or electrical contact is essentially free of play and flat.
  • a heater is thus created, in which the heating element is initially arranged in a playful, not in compact system on the wall to be heated or the power supply.
  • the activation pin can then be adjusted to activate the heater, so that the heating element is adjusted or shifted into its operative position.
  • the assembly of the heater is significantly simplified since the heating element is initially comparatively large game can be included in the housing. In the activation position of the activation pin, this game is then canceled so that the desired thermal and electrical contact is made with very good heat transfer.
  • the activation pin has, for example, a projecting actuation projection and an activation section on the heating element side, which can come into operative connection with the heating element for activation, the actuation projection being designed as a power supply, so that current is supplied when the activation pin is adjusted to its activation position.
  • the power supply is resilient.
  • the thermal and / or electrical contacting produced due to the displacement of the activation pin is preferably also accompanied by mechanical contacting, which ensures that the heating elements are pressed against the corresponding wall of the receptacle of the component.
  • This mechanical contacting can be provided in addition or independently of the thermal and electrical contacting.
  • the mechanical contacting of the heating elements can be indirect, i.e. via intermediate components or directly.
  • the activation pin has an actuating projection projecting from a housing section and an activating section on the heating element side, which can be operatively connected to the heating element for activating the heater by adjusting the actuating projection.
  • the activation pin can rest directly or indirectly on the heating element.
  • the structure of the heater is particularly simple if at least one of the power supply lines is resilient, for example with a spring element, so that in the Active position of the activation pin, the heating element can be acted upon in the direction of the wall.
  • a spring element is attached to a power supply. This can be held, for example, by crimping the power supply.
  • the power supply is designed to be resilient, tolerance differences can be compensated for by the spring action and a flat contact of the heating element in its operative position can be ensured.
  • the power supply line can have an approximately U-shaped structure, a bulge providing the spring action being formed on a U base.
  • the heating element can be acted upon in the direction of its operative position.
  • the activation pin can be made of metal as a stamped and bent part with a folded-over activation section or made of plastic.
  • the activation pin is fixed in position in its activation position by non-positive or positive engagement with another component of the heater, for example the aforementioned plug part.
  • This position fixation can take place, for example, by means of a catch, in which a tongue snaps into a recess of the activation pin or, in kinematic reversal, a projection of the activation pin into a recess of the plug part or another section of the heater fixed to the housing.
  • the electric heater can be designed with PTC resistance elements.
  • the heater can be removed again. After deactivating the activation pin, the heater can be removed without power and can be replaced, for example, in the event of service. Here is, however make sure that the heater is not removed arbitrarily. It makes sense to use a special tool here.
  • FIG. 1 shows a view of a heater 1, which in principle consists of a heating section 2 and a plug part 4.
  • the power supplies for contacting the heater 1 are arranged in this plug part 4.
  • the heating section 2 is inserted into a receptacle or pocket of a component to be heated, for example an SCR tank, the heating section 2 lying flat against the wall of this receptacle, so that good heat transfer is ensured.
  • a non-electrically conductive insulating film 6, which optimizes the heat transfer is provided in the contact area on the receptacle (not shown) on the heating section 2 and will be described in more detail later.
  • a plug contour is attached to which a correspondingly profiled plug connection of the Power supply is applied, this connector contour 8 is designed so that a correct installation is guaranteed.
  • FIG 2 shows a top view of the plug part 4 Figure 1 ,
  • a connector flange 10 which in the view according to Figure 2 covers the heating section 2 and also acts as an insertion limitation for this.
  • the profiled plug part 4 encompasses, with a peripheral wall, a plug space 12 into which the aforementioned plug of the power supply is immersed at least in sections.
  • At the bottom of this connector space 12 one can see two tongue-shaped current leads 14, 16 of the heating section 2 projecting into it and an actuation projection 18 of an activation pin 20 also protruding into this connector space 12.
  • This actuation projection 18 is supported on two spring tongues 22, 24 of the connector part 4 and extends through the bottom of the connector space 12 into the heating section 2.
  • the spring tongues 22, 24 each have a locking projection which plunges into recesses 26, 78 of the activation pin 20.
  • the spring tongues 22, 24 engage in the recess 78 of the activation pin 20, which is thus fixed in position against inadvertent shifting.
  • the spring tongues 22, 24 then engage in the recess 26 of the activation pin and lock it. This function is explained in more detail below.
  • FIG 3 shows the heater 1 according to Figure 1 with the insulating film 6 removed. This shows the actual heating section 2, which is described below using the Figures 5 and 6 is explained in more detail.
  • Figure 4 shows the connector part 4 alone without the heating section 2. Accordingly, the connector flange 10 extends downward on both sides of the heating section ( Fig. 3 ) arranged holding legs 28, 30, which practically form end walls of the heating section 2. These holding legs 28, 30 are in turn designed with a profile 32, which enables the position of the component to be heated to be fixed in position.
  • the plug part 4 of the heater 1 is preferably made of plastic by injection molding.
  • Side surfaces of the holding legs 28, 30 each have a locking lug 33, 35, via which the heating section 2 can be fixed in position between the holding legs.
  • the locking lugs 33, 35 take the force (activation force) which arises when the activation pin 20 is inserted into the heating insert Figures 5 and 6 on.
  • FIG. 5 shows a representation of the heater 1 with the plug part 4 removed.
  • U-shaped insulating film 6 the open side areas of which are described in FIG Figure 5 not visible holding legs 28, 30 are covered.
  • This illustration also shows the two power supply lines 14, 16 and the activation pin 20 with its actuating projection 18.
  • the above-described recess 26 is formed, into which the spring tongues 22, 24 (not visible) engage resiliently, this resilient engagement being relatively easy can be canceled.
  • the heating section 2 of the heater 1 is formed with four PTC heating elements 34a, 34b and 36a, 36b, which are shown in the view according to FIG Figure 6 are clearly visible, the heater 1 shown without plug part 4 rotated in a view to about 90 ° Figure 5 shows. Accordingly, two PTC heating elements 34a, 34b and 36a, 36b lie opposite each other in pairs, the large areas of these PTC resistance elements running parallel to the large areas of the insulating film 6. An approximately U-shaped first contact element 38 of the power supply line 16 is immersed in the space between the PTC resistance elements 34a, 34b and 36a, 36b, the structure of which is particularly good Figure 6 and the individual representation according to Figure 8 is removable.
  • this first contact element 38 has two electrode plates 40, 42, each of which abuts one of the pairs of PTC resistance elements 34a, 34b, or 36a, 36b and whose base corresponds approximately to that of the associated pair of resistance elements.
  • the two electrode plates 40, 42 are each connected at the end face by a base part 44a, 44b.
  • Each of these base parts 44a, 44b is designed with a bulge 46a, 46b, so that the two electrode plates 40, 42 can be moved resiliently and parallel to one another by elastic deformation of the base parts 44a, 44b and the associated bulges 46a, 46b.
  • recesses 47 are recesses 47, on the side edges of the electrode plates 40, 42 49 designed for locking with the locking lugs 33, 35. In addition to the latching, the activation force is also received by the recesses 47, 49.
  • the contact tongue 48 is connected to the electrode plate 40 via an approximately U-shaped bent contact leg 50.
  • a spring element 52, 54 is provided on each of the two electrode plates 40, 42 of the power supply 16 (see Figures 6 and 7 ) held.
  • two crimping tabs 56a, 56b and 58a, 58b are provided on each electrode plate 40, 42 for fixing the position of these spring elements 52, 54 (see Figure 8 ), each of which laterally engages around an upper cross strut 60, 62 of the respective spring element 52, 54.
  • the two spring elements 48, 50 also have, according to the individual illustration in Figure 9 and the Figures 6 and 7 lower cross struts 64, 66 which run parallel to the upper cross struts 60, 62 and between which two spring bridges 68a, 68b and 70a, 70b, which are spaced apart from one another, bulge toward one another.
  • the associated spring bridges 68b and 70b are shown in the view according to FIG Figure 7 covered by the spring bridges 68a and 70a and in accordance with the view Figure 6 not visible.
  • Two recesses 61a, 61b are formed on the narrow sides of the upper cross struts 60, 62, which in the assembled state are separated by the crimping tabs 56a, 56b; 58a, 58b are encompassed in order to mechanically connect the spring elements 52, 54 to the corresponding power supply lines 14, 16.
  • Each spring element 52, 54 is thus supported with its upper and lower cross struts 60, 64 and 62, 66 on the associated electrode plate 40, 42, a lateral position fixation via the crimping plates 56a, 56b and on each electrode plate 40, 42 respectively. 58a, 58b takes place.
  • the two vertices 72, 74 ( Figure 7 ) of the spring bridges 68, 70 are at a comparatively small distance from one another.
  • the two electrode plates 42, 40 are somewhat spaced apart from the PTC resistance elements 34b, 36b, so that a gap s remains in each case it enables the PTC heating elements 34, 36 to be used practically without force and thus gently.
  • an activation section 76 of the activation pin 20 dips into the area between the opposing spring bridges 68, 70 and is in the assembly position or release position (see Figure 7 ) but not in contact with the spring elements 52, 54.
  • the cross struts 60, 62 remain by means of the crimping tabs 56a, 56b; 58a, 58b established connection to the electrode plates 40, 42 fixed in position.
  • the cross struts 64, 66 on the spring elements 52, 54 are displaced when the activation pin 20 is inserted, so they do not maintain their position.
  • the actuating projection 18 with the recess 26 and a further opening 78 upward protrudes from a connection 80 which is set slightly to the level of the activation section 76, from which two legs 82, 84 extend, which together form the activation section 76.
  • These legs have a folded end section 86, 88 which is bent back by a bending process to the level of the part of the legs 82, 84 on the attachment side, the end face regions 90, 92 then again being slightly bent out of this plane.
  • the activation pin 20 can be moved via suitable guides in the plug part 4 (vertically in Figure 6 ) guided.
  • FIG 11 shows an individual representation of the second power supply 14, the structure similar to that based on Figure 8 has explained power supply 16 and as shown in the Figures 5 and 6 is nested with it.
  • the power supply 14 has two electrode plates 94, 96 with approximately the same base area as the electrode plates 40, 42. Both are electrode plates 94, 96 again via resiliently connected base parts 98a, 98b, each with an arch 100a, 100b. How in particular Figure 6 can be removed, the electrode plates 94, 96 and the base parts 98a, 98b lie outside the corresponding components of the power supply 16, the PTC resistance elements 34a, 34b between the electrode plates 42 and 96 and the PTC resistance elements 36a, 36b between the electrode plates 40 and 94 are arranged (see Figure 7 ).
  • a contact tongue 102 is connected to the electrode plate 94 via a U-part 104. Both power supply lines 14, 16 are formed as stamped and bent parts. According to Figure 11 A fixing element 110 is formed on the electrode plate 96, which is more clearly shown in the figure Figure 5 is visible. During assembly, this fixing element 110 engages in a corresponding recess in the plug part 4 in order to fix the heating section 2.
  • Figure 12 shows a heater 1 inserted in a receptacle or pocket of a container to be heated, the heating section 2 being received flush in the pocket 106 and the plug part 4 with the plug flange 10 being seated on an outer surface 108.
  • the insulating film 6 sits flat on the peripheral walls of the pocket 106, although the end face of the heating section 2 can be spaced from a bottom of the pocket.
  • the activation pin 20 is inserted into its pocket in order to insert the pocket 106 Figure 7 Leave position shown, in which the electrode plates 40, 42 and 94, 96 are not contacted with the PTC resistance elements 34, 36 with bias. Furthermore, according to the assembly position Figure 7 the insulating film 6 is not pressed against the wall of the pocket 106.
  • the activation pin 20 is moved from the illustration either by the attached plug or by a suitable tool via the actuating projection 18 protruding into the plug space 12 Figure 6 shifted down ( Fig.
  • the insulating film 6 serves as electrical insulation.
  • the insulating film can also be used to compensate for slight unevenness in the mounting of the component.
  • a particular advantage of this construction is that any manufacturing tolerances and temperature-related dimensional fluctuations can be compensated for by the considerable spring force of the spring bridges 74a, 74b, so that sufficient mechanical, thermal and electrical contact is always guaranteed.
  • the assembly of the heater 1 itself and its insertion into the receptacle is facilitated by the game s.
  • the construction principle on which the invention is based can easily be adapted to different sizes and outputs.
  • an electric heater which can be used with a heating section 2 in a receptacle of a component to be thermostatted, with heating elements 34, 36 which are energized via current leads 14, 16 and which can be brought into direct or indirect thermal contact with a wall of the receptacle and with an activation pin 20, which is adjustable from a release position into an activation position, around the heating elements 34, 36 from an assembly position in which they are not or only to a limited extent in thermal contact with the wall or in electrical contact with the associated power supply lines 14, 16 are to be adjusted into an operative position in which thermal contact and / or electrical contact is ensured.
  • the activation pin 20 can have a projecting actuation projection 18 and an activation section 76 on the heating element side, which comes into operative connection with the heating element 34, 36 for activation.
  • the power supply lines 14, 16 can protrude into a connector space 12 of a connector part 4, into which the actuation projection 18 of the activation pin 20 also projects.
  • At least one of the power supply lines 14, 16 can be assigned a spring element 52, 54 which, in the active position of the activation pin 20, acts on the heating element in the direction of the wall or in the sense of an electrical contact.
  • the spring element 52, 54 can be attached to the power supply 14, 16.
  • the spring element 52, 54 can be held over crimp tabs 56, 58.
  • the current leads 14, 16 can be resilient.
  • Each power supply line 14, 16 can have an approximately U-shaped structure, in which case an arching 46, 100 can be formed on a base part 44, 98 in order to provide the spring action.
  • Both power supply lines 14, 16 can be designed to be resilient.
  • the heater may have at least two opposing heating elements 34, 36, each of which is assigned a spring element 52, 54, the activation pin 20 being immersed in its activation position between the two spring elements 42, 44 in order to spring-bias the heating elements in the direction of the wall or to act in the sense of a contact.
  • heating elements 34a, 34b; 36a, 36b can be provided, which lie opposite one another in pairs and between which the spring elements 52, 54 can be arranged, to which an activation pin 20 is assigned.
  • the activation pin 20 can be formed as a stamped and bent part with two folded-over end sections 86, 88 forming the activation section 76.
  • the activation pin 20 can be non-positively or positively fixed in position in the activation position.
  • the heating elements can be PTC resistance elements 34, 36.
  • the heating section 2 can have an insulating film 6 in the contact area against the wall.
  • an electric heater with at least one heating element that can be brought into thermal contact with a wall of a component to be heated.
  • This heating section is provided with an activation pin which can be adjusted from a release position into an activation position in order to adjust the heating element after insertion into the receptacle into an active position in which sufficient thermal and / or electrical contact is ensured.

Landscapes

  • Resistance Heating (AREA)

Claims (10)

  1. Appareil de chauffage électrique, qui peut, avec un tronçon chauffant (2), être introduit dans un logement d'un composant à thermostater, avec
    un élément chauffant (34), pouvant être alimenté en courant par le biais d'une amenée de courant (14), qui peut être mis en contact thermique avec une cloison du logement,
    une broche d'activation (20), qui peut être déplacée d'une position de libération vers une position d'activation pour déplacer l'élément chauffant (34) à partir d'une position de montage, dans laquelle il n'est pas ou seulement de façon réduite en contact thermique avec la cloison ou en contact électrique avec l'amenée de courant (14) affectée, vers une position opératoire dans laquelle le contact thermique et/ou le contact électrique est garanti,
    la broche d'activation (20) ayant une saillie d'actionnement (18) en surplomb et un tronçon d'activation (76), côté élément chauffant, qui, pour l'activation, entre en relation opératoire avec l'élément chauffant (34),
    la saillie d'actionnement (18) étant constituée en tant qu'amenée de courant de sorte qu'une alimentation en courant intervient lors du déplacement de la broche d'activation (20) vers sa position d'activation,
    l'amenée de courant (14) étant constituée de façon élastique.
  2. Appareil de chauffage selon la revendication 1, l'amenée de courant (14) dépassant dans un espace de connecteur (12) d'une partie de connecteur (4) à l'intérieur duquel dépasse également la saillie d'actionnement (18) de la broche d'activation (20).
  3. Appareil de chauffage selon la revendication 1 ou 2, un élément de ressort (52) étant affecté à l'amenée de courant (14) et, dans la position opératoire de la broche d'activation (20), agissant sur l'élément de chauffage dans la direction de la cloison ou dans le sens d'une mise en contact électrique.
  4. Appareil de chauffage selon la revendication 3, l'élément de ressort (52) étant fixé sur l'amenée de courant (14) .
  5. Appareil de chauffage selon la revendication 4, l'élément de ressort (52) étant retenu par le biais d'attaches serties (56, 58).
  6. Appareil de chauffage selon l'une des revendications précédentes, l'amenée de courant (14) présentant une structure à peu près en forme de U, et une partie de base (44) présentant une concavité (46, 100) pour la fourniture d'une action de ressort.
  7. Appareil de chauffage selon l'une des revendications précédentes, la broche d'activation (20) étant constituée en tant que pièce découpée-pliée avec deux tronçons d'extrémité (86, 88) repliés formant le tronçon d'activation (76).
  8. Appareil de chauffage selon l'une des revendications précédentes, la broche d'activation (20) étant fixée en place dans la position d'activation par liaison de force ou de forme.
  9. Appareil de chauffage selon l'une des revendications précédentes, l'élément chauffant étant un élément de résistance CTP (34).
  10. Appareil de chauffage selon l'une des revendications précédentes, le tronçon chauffant (2) comportant une feuille isolante (6) dans la zone d'appui sur la cloison.
EP16165765.5A 2010-09-10 2011-09-12 Chauffage electrique Active EP3073800B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010037479.2A DE102010037479B4 (de) 2010-09-10 2010-09-10 Elektrischer Heizer
EP11180922.4A EP2429257B1 (fr) 2010-09-10 2011-09-12 Chauffage électrique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP11180922.4A Division EP2429257B1 (fr) 2010-09-10 2011-09-12 Chauffage électrique

Publications (2)

Publication Number Publication Date
EP3073800A1 EP3073800A1 (fr) 2016-09-28
EP3073800B1 true EP3073800B1 (fr) 2020-01-15

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP11180922.4A Active EP2429257B1 (fr) 2010-09-10 2011-09-12 Chauffage électrique
EP16165765.5A Active EP3073800B1 (fr) 2010-09-10 2011-09-12 Chauffage electrique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP11180922.4A Active EP2429257B1 (fr) 2010-09-10 2011-09-12 Chauffage électrique

Country Status (4)

Country Link
EP (2) EP2429257B1 (fr)
DE (1) DE102010037479B4 (fr)
DK (1) DK2429257T3 (fr)
ES (1) ES2575134T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10093538B2 (en) 2012-11-19 2018-10-09 Intelligent Energy Inc. Heater assembly, hydrogen generator and method of providing hydrogen gas
US9243560B2 (en) * 2012-11-19 2016-01-26 Intelligent Energy Inc. Hydrogen generator having a thermal actuator
DE102017123549A1 (de) * 2017-10-10 2019-04-11 Eichenauer Heizelemente Gmbh & Co. Kg Tankheizung
CN110145808B (zh) * 2019-06-24 2024-06-07 宁波奥克斯电气股份有限公司 一种可折叠空调辅助电加热装置及空调

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Publication number Priority date Publication date Assignee Title
US3940591A (en) * 1974-07-01 1976-02-24 Texas Instruments Incorporated Self-regulating electric heater
US4395623A (en) * 1980-03-04 1983-07-26 Murata Manufacturing Co., Ltd. Self-regulating electric heater
US5194717A (en) * 1990-10-18 1993-03-16 Tecumseh Products Company Bracket for mounting a crankcase heater
ES2057952T3 (es) * 1991-08-12 1994-10-16 Siemens Matsushita Components Dispositivo de calefaccion para calentar medios circulantes.
US6455822B1 (en) * 2000-10-11 2002-09-24 Mega Dynamics Ltd. Heat sink for a PTC heating element and a PTC heating member made thereof
EP1375997B1 (fr) 2002-06-27 2005-01-12 David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH Dispositiv de chauffage pour un conduit et procédé de construction
DE10325965B4 (de) * 2003-06-07 2007-01-11 Mann + Hummel Gmbh Heizeinrichtung für Fluide
US7537000B2 (en) * 2006-02-14 2009-05-26 Honda Motor Co., Ltd Engine with breather apparatus
JP2008071553A (ja) * 2006-09-13 2008-03-27 Calsonic Kansei Corp 電気ヒータ装置およびその製造方法
US8232509B2 (en) * 2006-11-16 2012-07-31 S.C. Johnson & Son, Inc. Retainer system

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
DE102010037479B4 (de) 2023-03-16
ES2575134T3 (es) 2016-06-24
EP3073800A1 (fr) 2016-09-28
DE102010037479A1 (de) 2012-03-15
DK2429257T3 (en) 2016-08-01
EP2429257B1 (fr) 2016-04-20
EP2429257A1 (fr) 2012-03-14

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