EP2360437B1 - dispositif de chauffage electrique - Google Patents

dispositif de chauffage electrique Download PDF

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Publication number
EP2360437B1
EP2360437B1 EP11153805.4A EP11153805A EP2360437B1 EP 2360437 B1 EP2360437 B1 EP 2360437B1 EP 11153805 A EP11153805 A EP 11153805A EP 2360437 B1 EP2360437 B1 EP 2360437B1
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EP
European Patent Office
Prior art keywords
heating
heating device
elements
contact
electric
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.)
Not-in-force
Application number
EP11153805.4A
Other languages
German (de)
English (en)
Other versions
EP2360437A1 (fr
Inventor
Karl Lochmahr
Thomas Rais
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Mahle Behr GmbH and Co KG
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Publication date
Application filed by Mahle Behr GmbH and Co KG filed Critical Mahle Behr GmbH and Co KG
Publication of EP2360437A1 publication Critical patent/EP2360437A1/fr
Application granted granted Critical
Publication of EP2360437B1 publication Critical patent/EP2360437B1/fr
Not-in-force legal-status Critical Current
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Classifications

    • 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
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • 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
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0429—For vehicles
    • 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
    • F24H9/1872—PTC

Definitions

  • the invention relates to an electric heater, in particular for a motor vehicle.
  • Electric vehicles produce virtually no waste heat, unlike cars with diesel or gasoline engines. At low temperatures, this is a danger to safety.
  • the water heater can be replaced by an electric heater (PTC "Positive Temperature Coefficient"). Due to the good controllability of the electric heaters, for example, can be dispensed with temperature mixing valves, which in turn costs and space can be saved.
  • PTC Positive Temperature Coefficient
  • measures are required that lead to significant additional costs and increased space requirements. For example, it would be conceivable to use a cold air bypass with an actuator-driven air damper in order to produce a variable temperature stratification. It would also be conceivable to control the individual strands of the electric heater separately.
  • the DE 197 24 734 A1 discloses an electric heating device, in particular for a motor vehicle, with a plurality of planar heating elements which are combined to form a block and which are each held between two parallel plates.
  • the heating elements each have first contact elements for power supply and second contact elements for current feedback, wherein the heating elements are arranged in rows and in substantially perpendicular columns in such a stack and wherein the first contact elements or the second contact elements close to the contact and perpendicular, to a running as a power supply or as current return inside the heater common collecting power line, in particular busbar, are arranged and electrically connected thereto, wherein heating elements are arranged on both sides of the running inside the heater common collecting power line.
  • the current return is done centrally and this is not on one side of the heating network but preferably within the heating network.
  • the provision of a common central collecting power line represents a significant simplification over generic heaters compared to generic heaters.
  • the heating device has heating zones that are controllable in their heating power via the respective non-common power supply or non-common current return.
  • the power supply is preferably carried out for each heating zone via its own controller (high-side regulator).
  • a further embodiment provides that the heating device with each heating zone arranged substantially parallel to each other, each provided with the first and second contact elements and with the power supply or the current return electrically connected heating strands may be provided.
  • the heating device may have three heating zones, of which two heating zones each having four heating strands and one heating zone having nine heating strands are formed. According to the invention, however, the exact number of heating strands in the individual heating zones plays a subordinate role.
  • the heating device can have a clamping contact, in particular in the form of a clamping plug connection, between the common collecting current line on the one hand and the contact-proximate or first and second contact elements.
  • the heating device can have a soldering or welding or electrically conductive adhesive connection between the common collecting current line on the one hand and the contact-proximate or first and second contact elements.
  • the ultimately preferred embodiment of the contacting can be based on the size or nature of the heating device or the material properties of the individual components installed.
  • the heating device can have at least one guided by a bore or recess of the collecting current line contact element.
  • two further separate contact elements for the power supply of each heating strand can be provided, which are arranged on the common contact element for current discharge. Preference is given to the contact elements for power supply to a power supply or Stromzu 1500schiene and the common contact element for power dissipation with the collecting power line or bus bar in operative connection.
  • the heating device has a parallelepiped stacking of four heating zones forming heating elements, of which two in each case in series or in column next to each other or are arranged one above the other, wherein the common collecting power line between the adjacent, provided with the contact elements surfaces the heating elements runs.
  • the contact elements are arranged offset substantially 90 degrees to the collecting stream line. In this case, the current return takes place via the contact elements provided for the removal of current to the centrally arranged collecting current line.
  • the heater may have at least one between two adjacent heating elements to the heating strands parallel partition.
  • the realization of individual, separately formed heating zones can be created with simple means.
  • the heating device can conventionally be made of ceramic PTC elements (ceramic base with a non-linear resistance profile), of plastic with PTC character (polymer-based with a nonlinear resistance profile) or other materials with PTC character.
  • the electric heater can find application in an electric vehicle as a replacement for a water heater in an air conditioner.
  • Fig. 1 shows the schematic representation of a first embodiment of an electric heater H.
  • the heater H has three heating zones Z 1, Z 2 and Z 3.
  • the heating zones Z 1 and Z 2 are each assigned a heating element 1a and 2a.
  • the heating zone Z 3 is associated with the heating element 3a.
  • Each heating element 1 a, 2 a, 3 a is also a separate power supply 4, 5, 6 assigned.
  • Each heating element 1a, 2a and 3a is arranged with each heating zone Z 1, Z 2, Z 3 substantially parallel to each other and each with first and second contact elements 7, 8 (same components bear the same reference numerals) provided heating strands 9 (same components carry the same Reference numeral).
  • the contact elements 7 are in each case electrically connected to the corresponding power supply lines 4, 5 and 6, while the contact elements 8 are electrically connected to the centrally arranged busbar 10, respectively.
  • the current is dissipated together for all heating zones Z 1, Z 2 and Z 3 via the bus bar 10th
  • the heating elements 1a and 2a each have four individual heating strands 9, while the heating element 3a comprises nine individual heating strands 9.
  • the heating zones Z 1 and Z 2 or the heating elements 1 a and 2 a are spatially separated from one another by a partition wall 11 running parallel to the heating strands 9.
  • Fig. 2 shows the schematic representation of a second embodiment of an electric heater H '.
  • the heating device H ' has four heating zones Z 1', Z 2 ', Z 3' and Z 4.
  • the heating zones Z 1 'and Z 2' are each assigned a heating element 1a 'and 2a'.
  • the heating zones Z 3 'and Z4 are each assigned a heating element 3a' and 4a.
  • Each heating element 1a ', 2a', 3a 'and 4a is further associated with a separate power supply 4', 5 ', 6' and 12.
  • Each heating element 1a ', 2a', 3a 'and 4a is arranged with each heating zone Z 1', Z 2 ', Z 3' and Z4 substantially parallel to each other, and each with first and second contact elements 7 ', 8' (same Components carry the same Reference numerals) provided heating strands 9 '(the same components bear the same reference numerals).
  • the contact elements 7 ' are in each case electrically connected to the corresponding power supply lines 4', 5 ', 6' and 12, while the contact elements 8 'are each electrically connected to the centrally arranged busbar 10'.
  • the power dissipation takes place for all heating zones Z1 ', Z 2', Z 3 'and Z4 together via the busbar 10'.
  • the heating elements 1a ', 2a', 3a 'and 4a each comprise four individual Heinz strands 9'.
  • the heating zones Z 1 'and Z 2' or the heating elements 1 a 'and 2 a' are spatially separated from one another by a partition wall 11 'extending parallel to the heating strands 9'.
  • the heating zones Z 3 'and Z 4 or the heating elements 3a' and 4a are spatially separated from one another by a partition 11 'running parallel to the heating strands 9'.
  • Fig. 3 shows the schematic representation of a contact element arrangement, wherein the contact element arrangement comprises the contact elements 13 and 14.
  • the contact element 14 takes over the common current discharge of two heating strands 15 and is therefore designed as a continuous contact element 14.
  • the contact element arrangement can be electrically connected to a Stromzu adjustment not shown. If the contact element 14 is formed continuously, a corresponding bore or recess or the like can be provided in the busbar 16, through which the contact element 14 extends.
  • Fig. 4 shows a schematically illustrated first connection variant between a shortened illustrated contact element 19 and a shortened collecting busbar 20.
  • the spring element 21 has two prestressed spring legs 22 and 23 , which fix the contact element 19 fixed in position.
  • the spring element 21 can be fastened to the collecting busbar 20, for example by means of a soldering, welding, riveting, adhesive or screw connection.
  • Fig. 5 shows a shortened contact element 24 which is attached via a solder joint 25 with a shortened collecting busbar 26 shown.
  • Fig. 6 shows a contact element arrangement in which a continuous contact element 27 is provided with a bore 28. Through the bore 28, the bus bar 29 extends, which takes over the entire current return as the only busbar.
  • the mechanical and / or electrical connection takes place via a welded connection 30.
  • the mechanical and / or electrical connection can also take place via an adhesive and / or solder connection.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Claims (9)

  1. Dispositif de chauffage électrique (H, H'), en particulier chauffage auxiliaire électrique pour un véhicule automobile, comprenant plusieurs éléments chauffants (la, 1a', 2a, 2a', 3a, 3a', 4a) associés à chaque fois à une zone de chauffage (Z1, Z1', Z2, Z2', Z3, Z3', Z4), où les éléments chauffants (1a, 1a', 2a, 2a', 3a, 3a', 4a) présentent à chaque fois des premiers éléments de contact (7, 13) servant à l'alimentation en courant et présentent à chaque fois des deuxièmes éléments de contact (8, 14, 19, 24, 27) servant au circuit de retour du courant, où les éléments chauffants (1a, 1a', 2a, 2a', 3a, 3a', 4a) sont disposés de manière empilée, en rangées et en intervalles s'étendant pratiquement de façon perpendiculaire auxdites rangées, et où les premiers éléments de contact (7, 13) ou les deuxièmes éléments de contact (8, 14, 19, 24, 27) sont disposés en étant presque au contact et de façon perpendiculaire par rapport à une conduction collectrice de courant commune, en particulier une barre collectrice de courant (10, 10', 16, 20, 26, 29), qui s'étend à l'intérieur du dispositif de chauffage et sert à l'alimentation en courant ou au circuit de retour du courant, lesdits premiers ou deuxièmes éléments de contact étant reliés électriquement à ladite conduction collectrice de courant, où des éléments chauffants sont disposés des deux côtés de la conduction collectrice de courant commune s'étendant à l'intérieur du dispositif de chauffage, où le dispositif de chauffage (H, H') présente des zones de chauffage (Z1, Z1', Z2, Z2', Z3, Z3', Z4) pouvant être réglées, concernant leur puissance de chauffage, respectivement par l'alimentation en courant non commune ou par le circuit de retour du courant non commun.
  2. Dispositif de chauffage électrique selon la revendication 1, caractérisé en ce que le dispositif de chauffage (H, H') est doté, pour chaque zone de chauffage (Z1, Z1', Z2, Z2', Z3, Z3', Z4), à chaque fois des premiers ou des deuxièmes éléments de contact (7, 13, 8, 14, 19, 24, 27) disposés pratiquement de façon parallèle les uns aux autres, et doté de circuits de chauffage (9, 9', 15) reliés électriquement à l'alimentation en courant ou au circuit de retour du courant.
  3. Dispositif de chauffage électrique selon l'une des revendications 1 ou 2, caractérisé en ce que le dispositif de chauffage (H, H') présente une mise en contact aux bornes, en particulier sous la forme d'un connecteur aux bornes, entre, d'une part, la conduction collectrice de courant commune (10, 10', 16, 20, 26, 29) et, d'autre part, les premiers et deuxièmes éléments de contact ou disposés presque au contact (7, 13, 8, 14, 19, 24, 27).
  4. Dispositif de chauffage électrique selon l'une des revendications 1 ou 2, caractérisé en ce que le dispositif de chauffage (H, H') présente un assemblage par brasage ou par soudage ou un assemblage collé électroconducteur entre, d'une part, la conduction collectrice de courant commune (10, 10', 16, 20, 26, 29) et, d'autre part, les premiers et deuxièmes éléments de contact ou disposés presque au contact (7, 13, 8, 14, 19, 24, 27).
  5. Dispositif de chauffage électrique selon la revendication 4, caractérisé en ce que le dispositif de chauffage (H, H') présente au moins un élément de contact (14) guidé à travers un perçage de la conduction collectrice de courant (16).
  6. Dispositif de chauffage électrique selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le dispositif de chauffage (H, H') présente un élément de contact (14) continu commun pour deux circuits de chauffage (15) disposés l'un à côté de l'autre ou en amont l'un par rapport à l'autre.
  7. Dispositif de chauffage électrique selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le dispositif de chauffage (H, H') présente un empilement, de forme parallélépipédique, d'éléments chauffants (1a', 2a', 3a', 4a) formant quatre zones de chauffage (Z1', Z2', Z3', Z4), éléments chauffants dont deux sont disposés à chaque fois l'un à côté de l'autre ou l'un au-dessus de l'autre, en rangée ou dans un intervalle, où la conduction collectrice de courant commune (10') s'étend entre les surfaces adjacentes des éléments chauffants (1a', 2a', 3a', 4a), lesdites surfaces étant dotées des éléments de contact (7, 13, 8, 14, 19, 24, 27).
  8. Dispositif de chauffage électrique selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le dispositif de chauffage (H, H') présente, entre deux éléments chauffants adjacents (1a, 2a, 1a', 2a'), une paroi de séparation (11, 11') s'étendant parallèlement aux circuits de chauffage (9, 9').
  9. Utilisation d'un dispositif de chauffage électrique selon l'une quelconque des revendications 1 à 8, dans un climatiseur d'un véhicule électrique.
EP11153805.4A 2010-02-11 2011-02-09 dispositif de chauffage electrique Not-in-force EP2360437B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010001819 DE102010001819A1 (de) 2010-02-11 2010-02-11 Elektrische Heizvorrichtung

Publications (2)

Publication Number Publication Date
EP2360437A1 EP2360437A1 (fr) 2011-08-24
EP2360437B1 true EP2360437B1 (fr) 2016-11-02

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EP11153805.4A Not-in-force EP2360437B1 (fr) 2010-02-11 2011-02-09 dispositif de chauffage electrique

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DE (1) DE102010001819A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3072616B1 (fr) * 2017-10-24 2020-02-07 Valeo Systemes Thermiques Dispositif de chauffage, notamment pour boitier de climatisation d'un vehicule automobile

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19724734A1 (de) * 1997-06-12 1998-12-17 Behr Gmbh & Co Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug
EP1452357A1 (fr) * 2003-02-28 2004-09-01 Catem GmbH & Co.KG Appareil de chauffage électrique avec plusieurs zones de chauffage
EP1884383A1 (fr) * 2006-07-31 2008-02-06 Behr France Rouffach SAS Dispositif de chauffage électrique, en particulier pour un véhicule

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50313579D1 (de) * 2003-07-31 2011-05-12 Behr France Rouffach Sas Vorrichtung zum Austausch von Wärme
DE102004050237A1 (de) 2004-10-15 2006-04-27 Daimlerchrysler Ag Zuheizung
EP1926346B1 (fr) * 2006-11-23 2018-02-21 Mahle Behr France Rouffach S.A.S Dispositif de chauffage électrique, en particulier de véhicules

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19724734A1 (de) * 1997-06-12 1998-12-17 Behr Gmbh & Co Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug
EP1452357A1 (fr) * 2003-02-28 2004-09-01 Catem GmbH & Co.KG Appareil de chauffage électrique avec plusieurs zones de chauffage
EP1884383A1 (fr) * 2006-07-31 2008-02-06 Behr France Rouffach SAS Dispositif de chauffage électrique, en particulier pour un véhicule

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Publication number Publication date
EP2360437A1 (fr) 2011-08-24
DE102010001819A1 (de) 2011-08-11

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