EP3582237A1 - Ptc-heizanordnung - Google Patents

Ptc-heizanordnung Download PDF

Info

Publication number
EP3582237A1
EP3582237A1 EP18177323.5A EP18177323A EP3582237A1 EP 3582237 A1 EP3582237 A1 EP 3582237A1 EP 18177323 A EP18177323 A EP 18177323A EP 3582237 A1 EP3582237 A1 EP 3582237A1
Authority
EP
European Patent Office
Prior art keywords
ptc heating
ptc
heating element
rib structure
accommodating space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18177323.5A
Other languages
English (en)
French (fr)
Inventor
Joffroy Didelot
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 International GmbH
Original Assignee
Mahle International 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 Mahle International GmbH filed Critical Mahle International GmbH
Priority to EP18177323.5A priority Critical patent/EP3582237A1/de
Publication of EP3582237A1 publication Critical patent/EP3582237A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
    • H01C1/022—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being openable or separable from the resistive element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/08—Cooling, heating or ventilating arrangements
    • H01C1/084—Cooling, heating or ventilating arrangements using self-cooling, e.g. fins, heat sinks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • 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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/24—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor being self-supporting
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/022—Heaters specially adapted for heating gaseous material
    • H05B2203/023—Heaters of the type used for electrically heating the air blown in a vehicle compartment by the vehicle heating system

Definitions

  • the invention relates to a PTC heating arrangement comprising at least one PTC module according to the preamble of claim 1.
  • a PTC module typically has a plurality of thermistors of a ceramic PTC thermistor, which are arranged between two printed circuit boards in an electroconductive manner.
  • the printed circuit boards and the thermistors are typically arranged in a metallic housing so as to transfer heat and are electrically insulated by it. If a voltage is applied to the thermistors, the Ohmic resistance of the PTC thermistors increases. The heat generated thereby in the thermistors is then dissipated to a surrounding fluid - such as air, for example - via the printed circuit boards and via the housing.
  • a rib structure which enlarges a heat-dissipating surface of the housing, is secured to the respective housing on both sides.
  • the rib structure is typically metallic and is adhered to the metallic housing.
  • the quality of the housing and of the rib structure is significant for the heat-conducting contact in the PTC module. If the rib structure or the housing are deformed during the production or during use, the heat-conducting contact between the housing and the rib structure cannot be ensured. The heat output of the PTC module decreases accordingly.
  • a generic PTC heating arrangement has at least one PTC module.
  • the at least one PTC module thereby has an elongated PTC heating element and a rib structure comprising a plurality of ribs, which is arranged on the PTC heating element so as to transfer heat.
  • the PTC heating element has a cuboid housing and at least one PTC thermistor, which is arranged in the housing.
  • the housing thereby has two opposite heat dissipating walls, which are connected to one another by means of two opposite side walls, and which extend in the longitudinal direction of the PTC heating element.
  • the at least one PTC thermistor is thereby secured in the housing on the inner side on the heat dissipating walls so as to transfer heat.
  • the PTC heating element is arranged at least area by area in an accommodating space of the rib structure in its longitudinal direction, and the rib structure surrounds the PTC heating element in the area of the accommodating space in the circumferential direction.
  • the heat dissipating walls and the side walls of the housing of the PTC heating element are further secured on the outer side in the area of the accommodating space on an inner surface of the accommodating space so as to transfer heat.
  • the PTC heating element of the PTC module is surrounded by the rib structure in the area of the accommodating space, so that the heat-transferring contact between the rib structure and the PTC heating element can take place across a total outer surface of the housing - thus across the heat dissipating walls and across the side walls - in the area of the accommodating space.
  • the heat dissipation between the PTC module and the surrounding fluid can thus be improved and the heat output of the PTC heating arrangement can thus be increased as well.
  • the housing of the PTC heating element to be secured on the heat dissipating walls and/or on the side walls in the area of the accommodating space to the inner surface of the accommodating space by means of a substance-to-substance bond, preferably by means of adhesion.
  • a heat-conductive adhesive can be used, for example, which supports a heat transfer between the housing of the PTC heating element and the rib structure in the respective PTC module.
  • the PTC heating element can thereby in particular be secured in the rib structure in a secure manner and additional fastening or bracing means, respectively, can be avoided.
  • a stable heat-transferring connection can further be attained between the rib structure and the PTC heating element, so that the production of the PTC heating arrangement can be simplified, and the quality can be improved.
  • the PTC heating element in particular remains accessible from the outside on its longitudinal ends in this way, for example for maintenance or for electrically connecting to an external voltage source.
  • the contact elements of the connection arrangement can thereby protrude to the outside from the housing of the PTC heating element and from the accommodating space of the rib structure.
  • the ribs of the rib structure protrude perpendicularly to the outside from the heat dissipating walls and/or from the side walls of the housing of the heating element. Hollow spaces, which are directed perpendicular to the outside and which provide for an inflow and outflow of the surrounding fluid all the way to the housing of the PTC heating element, are created between the ribs of the rib structure in this way.
  • the heat output between the respective PTC module and the surrounding fluid can be intensified in this way.
  • the heat dissipation to each of the heat dissipating walls and/or to each of the side walls can be balanced in this advantageous way.
  • the at least one PTC thermistor, which is secured in the respective PTC module can in particular heat evenly or can cool evenly by means of the heat dissipation, respectively, and the heat output of the respective PTC module can thus be increased as well.
  • the rib structure can be formed by a shaped sheet metal part, which is made of a single piece of sheet metal by means of undulated or zig-zag-shaped forming. Due to its heat-conducting properties, the one-piece rib structure made of sheet metal provides for an even heat dissipation to the surrounding fluid and the heat output of the PTC heating arrangement can be increased.
  • At least two PTC modules can be stacked against one another in the PTC heating arrangement, wherein the rib structures of the respective PTC modules are secured to one another so as to transfer heat. Provision can additionally be made for the rib structures of the PTC modules, which are stacked against one another, to be connected via a support plate so as to transfer heat, wherein an outer surface of the respective rib structure, which corresponds to the heat dissipating wall, is secured to a connecting surface of the support plate so as to transfer heat.
  • a heat-transferring layer for example a heat-conducting film or a heat-conducting paste, can further be arranged at least area by area between the respective outer surface of the respective rib structure and the connecting surface of the support plate.
  • the PTC heating element of the PTC module is surrounded by the rib structure in the area of the accommodating space in the PTC heating arrangement according to the invention, wherein the heat dissipation between the PTC module and the surrounding fluid is improved and the heat output of the PTC heating arrangement can thus be increased as well.
  • Fig. 1 and Fig. 4 show views of a PTC heating arrangement 1 according to the invention.
  • the PTC heating arrangement 1 thereby has two PTC modules 2, which are stacked against one another.
  • Fig. 1 shows one of the PTC modules 2 in section.
  • the respective PTC module 2 thereby has a PTC heating element 3 and a rib structure 4, which is secured to the respective PTC heating element 3 so as to transfer heat.
  • the PTC heating element 3 has a cuboid housing 5 comprising two opposite heat dissipating walls 6, which are connected to one another by means of two opposite side walls 7.
  • the heat dissipating walls 6 and the side walls 7 thereby extend in the longitudinal direction 8 of the PTC heating element 3.
  • An insulating plate 11 electrically insulates the respective PTC thermistor 9 and the contact plate 10 from the respective heat dissipating wall 6 of the housing 5.
  • the insulating plate 11 is advantageously made of a heat-conducting material and provides for a heat-transferring contact of the respective PTC thermistor 9 and the respective contact plate 10 with the housing 5, so that the heat generated in the respective PTC thermistor 9 can be guided into the rib structure 4 via the respective contact plate 10, the respective insulating plate 11, and the heat dissipating wall 6 of the housing 5.
  • the respective PTC heating element 3 is arranged area by area in an accommodating space 12 of the respective rib structure 4 in the longitudinal direction 8 and the respective rib structure 4 surrounds the respective PTC heating element 3 in the area of the accommodating space 12 in the circumferential direction.
  • the heat dissipating walls 6 and the side walls 7 of the housing 5 of the PTC heating element 3 are secured to an inner surface 13 of the accommodating space 12 so as to transfer heat on the outer side in the area of the accommodating space 12, as can be seen in particular in Fig. 2 .
  • the housing 5 of the PTC heating element 3 is mechanically clamped in the accommodating space 12 of the rib structure 4 and the PTC heating element 3 penetrates the accommodating space 12 of the rib structure 4.
  • the contact plates 10 of the PTC heating element 3 and thus the PTC heating element 3 can be electrically connected to an external voltage source by means of a connection arrangement 14 comprising contact element 15.
  • the contact elements 15 of the connection arrangement 14 are connected to the respective contact plates 10 in an electroconductive manner and protrude to the outside from the housing 5 of the PTC heating element 3 and from the accommodating space 12 of the rib structure 4, so that the electrical connecting is simplified.
  • the respective rib structure 4 - as can in particular be seen in Fig. 3 - has a plurality of ribs 16 and can be made in one piece, for example as a shaped sheet metal part.
  • the ribs 16 of the rib structure 4 thereby protrude perpendicularly to the outside from the heat dissipating walls 6 and from the side walls 7 of the housing 5 of the PTC heating element 3, so that the surrounding fluid between the individual ribs 16 can be guided all the way to the housing 5 of the PTC heating element.
  • the heat output between the respective PTC module 2 and the surrounding fluid can thus in particular be intensified.
  • the accommodating space 12 is further arranged at right angles to the longitudinal direction 8 of the PTC heating element 3 in the middle of the rib structure 4 - as can in particular be seen in Fig. 2 .
  • a length of the ribs 16, which protrude to the outside from the two heat dissipating walls 6, and a length of the ribs 16, which protrude to the outside from the two side walls 7, are thereby identical.
  • the heat dissipation at the heat dissipating walls 6 and at the side walls 7 can thus be balanced and the PTC thermistors 9 can heat evenly or can cool evenly, respectively, by means of the heat dissipation.
  • the heat output of the PTC heating arrangement can thus in particular be increased.
  • the two PTC modules 2 are stacked against one another and are connected to one another via a support plate 17 so as to transfer heat.
  • two PTC modules 2 are stacked against one another in the PTC heating arrangement 1.
  • PTC modules 2 can also be stacked to form the PTC heating arrangement 1.
  • the PTC heating element 3 of the PTC module 2 is surrounded by the rib structure 4 and the heat dissipation between the respective PTC module 2 and the surrounding fluid is improved.
  • the heat output of the PTC heating arrangement 1 is also increased accordingly.
  • a stable heat-transferring connection is further attained between the rib structure 4 and the PTC heating element 3, so that the production can be simplified and the quality of the PTC heating arrangement 1 can be improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Resistance Heating (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Thermistors And Varistors (AREA)
EP18177323.5A 2018-06-12 2018-06-12 Ptc-heizanordnung Withdrawn EP3582237A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18177323.5A EP3582237A1 (de) 2018-06-12 2018-06-12 Ptc-heizanordnung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18177323.5A EP3582237A1 (de) 2018-06-12 2018-06-12 Ptc-heizanordnung

Publications (1)

Publication Number Publication Date
EP3582237A1 true EP3582237A1 (de) 2019-12-18

Family

ID=62778681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18177323.5A Withdrawn EP3582237A1 (de) 2018-06-12 2018-06-12 Ptc-heizanordnung

Country Status (1)

Country Link
EP (1) EP3582237A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10015905A1 (de) * 2000-03-30 2001-10-11 Eichenauer Gmbh & Co Kg F Vorrichtung zur Beheizung von Innenräumen von Kraftfahrzeugen
WO2007049746A1 (ja) * 2005-10-28 2007-05-03 Calsonic Kansei Corporation ヒータ装置
US20150117846A1 (en) * 2011-12-15 2015-04-30 Behr Gmbh & Co. Kg Electrically operable heating device
DE102015120183A1 (de) * 2015-11-20 2017-05-24 Dbk David + Baader Gmbh Radiatoranordnung für einen elektrischen Heizer und elektrischer Heizer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10015905A1 (de) * 2000-03-30 2001-10-11 Eichenauer Gmbh & Co Kg F Vorrichtung zur Beheizung von Innenräumen von Kraftfahrzeugen
WO2007049746A1 (ja) * 2005-10-28 2007-05-03 Calsonic Kansei Corporation ヒータ装置
US20150117846A1 (en) * 2011-12-15 2015-04-30 Behr Gmbh & Co. Kg Electrically operable heating device
DE102015120183A1 (de) * 2015-11-20 2017-05-24 Dbk David + Baader Gmbh Radiatoranordnung für einen elektrischen Heizer und elektrischer Heizer

Similar Documents

Publication Publication Date Title
JP2698318B2 (ja) ヒータ
JP2005045960A (ja) 電力変換装置
EP3582237A1 (de) Ptc-heizanordnung
JP6301938B2 (ja) ヒートシンク、関連する加熱モジュール、および、対応する組み立て方法
KR100737347B1 (ko) 피티씨 소자를 이용한 발열장치
JP2015050164A (ja) 電池モジュール
JP6738193B2 (ja) 伝熱構造体、絶縁積層材、絶縁回路基板およびパワーモジュール用ベース
KR102292906B1 (ko) 히터 코어, 히터 및 이를 포함하는 히팅 시스템
JP2018157201A (ja) 抵抗装置、及び、抵抗装置の製造方法
US20140124500A1 (en) Insulated heater
CN110366278B (zh) Ptc热敏电阻模块
US11618302B2 (en) PTC heater
JP2010287842A (ja) 大電力無誘導抵抗器
JP2009224556A (ja) 印刷版及びそれを用いたパワーモジュールの組み付け方法
JP5707910B2 (ja) 積層型冷却器
JP2008042020A (ja) 半導体モジュール
JPH07201454A (ja) 正特性サーミスタ発熱体
KR20170093453A (ko) 정온특성 서미스터 소자를 이용한 발열장치
KR102292905B1 (ko) 히터 코어, 히터 및 이를 포함하는 히팅 시스템
JPH065353A (ja) 正特性サーミスタ発熱体
CN210274559U (zh) 散热组件及ptc加热装置
CN210091843U (zh) 一种高电压用的ptc热敏电阻及其组件
JP2518847Y2 (ja) フィンヒータ
CN117650105A (zh) 一种功率模块及功率模块组装方法
JPS6029196Y2 (ja) 正特性サ−ミスタを用いた発熱体装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20200619