WO2020098996A1 - Composant électrique, module d'alimentation en carburant et réservoir de carburant - Google Patents

Composant électrique, module d'alimentation en carburant et réservoir de carburant Download PDF

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Publication number
WO2020098996A1
WO2020098996A1 PCT/EP2019/074649 EP2019074649W WO2020098996A1 WO 2020098996 A1 WO2020098996 A1 WO 2020098996A1 EP 2019074649 W EP2019074649 W EP 2019074649W WO 2020098996 A1 WO2020098996 A1 WO 2020098996A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
potting material
circuit board
fuel
control device
Prior art date
Application number
PCT/EP2019/074649
Other languages
German (de)
English (en)
Inventor
Karel Marhoun
Tomas Bauer
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN201980075541.1A priority Critical patent/CN113016239B/zh
Publication of WO2020098996A1 publication Critical patent/WO2020098996A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings
    • H05K5/064—Hermetically-sealed casings sealed by potting, e.g. waterproof resin poured in a rigid casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3082—Control of electrical fuel pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0047—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
    • H05K5/0056—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB characterized by features for protecting electronic components against vibration and moisture, e.g. potting, holders for relatively large capacitors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/18—Packaging of the electronic circuit in a casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M2037/085—Electric circuits therefor

Definitions

  • Control unit fuel delivery module and fuel tank
  • the present invention relates to a control device.
  • the control unit is in particular part of a fuel delivery module for insertion into one
  • Fuel tank also relates to such a fuel delivery module and a fuel tank comprising such a fuel delivery module.
  • Potting material to be cast The potting material shields the circuit board from external influences.
  • control device is advantageously suitable for use in corrosive environments.
  • control unit can be optimally used in or on fuel tanks.
  • the control unit is particularly protected against hydrocarbon vapors.
  • the control device comprises a housing and a printed circuit board.
  • the circuit board is arranged in the housing. There is also a on the circuit board
  • Control electronics and / or the printed circuit board are at least partially surrounded by a potting material.
  • the circuit board and the control electronics are protected from external influences by the potting material.
  • the housing has a wall area, the outside of which faces away from the control electronics is exposed to hydrocarbon vapors during operation of the control device.
  • an additional layer is provided between the potting material and the wall area.
  • the additional layer is made of one
  • the additional layer has a higher resistance to the penetration of hydrocarbons than the potting material.
  • the additional layer thus prevents or at least makes it difficult for hydrocarbons to penetrate into the potting material.
  • the additional layer thus represents a shield against hydrocarbons. This enables safe and reliable protection of the potting material and thus also of the printed circuit board and the control electronics. Because hydrocarbons in particular
  • control unit can be used in or on fuel tanks with a long service life.
  • the potting material advantageously comprises a casting resin.
  • the potting material particularly advantageously comprises polyurethane.
  • the potting material is made entirely of polyurethane.
  • the additional material preferably has an epoxy resin.
  • the additional material is particularly advantageously formed from epoxy resin. Epoxy resin minimizes that
  • Polyurethane in particular is susceptible to the absorption of hydrocarbons, which enables swelling and / or degradation of the potting material.
  • the circuit board could also be damaged.
  • the additional material made of epoxy resin reduces the risk of hydrocarbons penetrating into the potting material, as a result of which both potting material and printed circuit board as well as the
  • the wall area is in particular a bottom of the housing.
  • the housing is in particular pot-shaped and enables the circuit board to be inserted through the opening in the pot shape.
  • the bottom of the pot shape is formed by the wall area, the wall area being in particular directly exposed to the inside of a fuel tank.
  • the housing is preferably at least partially closed by a housing cover.
  • a housing cover In particular in the case of the pot shape described above, this completely enables the circuit board and the potting material to be closed.
  • a heat sink is particularly advantageously integrated in the housing cover.
  • the heat sink protrudes from the potting material and is used to cool the circuit board and / or the control electronics. In this way, the heat sink can in particular cool the circuit board and / or control electronics completely inside the potting material.
  • the housing cover together with the heat sink provides a surface of the
  • the circuit board and the control electronics are advantageously protected from mechanical influences and from fluids by the potting material.
  • the potting material is protected from hydrocarbons by the additional layer.
  • the potting material is in front of the additional layer
  • Control electronics components in said corrosive environment, since the circuit board and the control electronics are protected by potting material and
  • the invention also relates to a fuel delivery module.
  • Fuel delivery module is provided for insertion in a fuel tank.
  • the fuel delivery module comprises the control device as described above.
  • the fuel delivery module preferably comprises a tank flange, which serves to close an opening of a fuel tank.
  • the housing of the control unit At said tank flange is advantageously formed the housing of the control unit.
  • the housing represents a portion of the
  • control unit is optimal for use in one
  • the fuel delivery module therefore has a long service life and advantageously enables the integration of the
  • the fuel delivery module particularly advantageously has a fuel pump.
  • the fuel pump can be controlled by the control unit.
  • the fuel pump is advantageously held at least indirectly on the tank flange. In this way, the fuel delivery module can be manufactured easily and with little effort, on the one hand, and can be easily and effortlessly integrated into a fuel tank.
  • the invention relates to a fuel tank.
  • the fuel tank is in particular a vehicle tank for receiving operating fluids for a vehicle.
  • the fuel tank has a fuel delivery module as previously described.
  • the tank flange closes an opening in the fuel tank.
  • a fuel pump can be integrated into the fuel tank by the fuel delivery module and can be controlled by the control unit. The outside of the wall area described above is thus exposed to hydrocarbon vapors.
  • the fuel tank thus has a high
  • Figure 1 is a schematic view of a fuel tank according to a
  • Fuel delivery module according to an embodiment of the invention and Figure 2 is a schematic view of the fuel delivery module with a control device according to an embodiment of the invention.
  • FIG. 2 schematically shows a fuel tank 8.
  • the fuel tank 8 is advantageously a vehicle tank and is used to hold one
  • Operating fluids 1 especially fuels such as diesel or gasoline. It is also possible to take up other operating fluids 11, such as, in particular, urea.
  • the fuel tank 8 can be filled with fluid via a filler neck 16, the fluid being dispensable via an outlet 17.
  • the fuel tank 8 has a fuel delivery module 7, which closes an opening 15 of the fuel tank.
  • the fuel delivery module 7 is inserted into the opening 15 of the fuel tank 8 and has a tank flange 10 which closes the opening 15 of the fuel tank 8.
  • the tank flange 10 also serves to hold a fuel pump 9 at least indirectly.
  • the tank flange 10 also represents a housing 5 of a control unit 1 for controlling the fuel pump 9. The operating fluid 11 can thus be pumped out of the fuel tank 8 via the fuel pump 9.
  • the operating fluid 11 received within the fuel tank 8 means that the fuel delivery module 7 is always exposed to corrosive media.
  • the housing 5 is always exposed to hydrocarbon vapors.
  • FIG. 1 schematically shows a sectional view of the tank flange 10 of the fuel delivery module 7 according to FIG. 2.
  • the control device 1 can be seen here, which comprises a circuit board 2 accommodated in the housing 5.
  • the circuit board 2 also has control electronics 12 for controlling the fuel pump 9. Furthermore, the control device 1 has a potting material 3 which at least partially surrounds the printed circuit board 2 and / or the control electronics 12. In particular, the potting material 3 completely surrounds the printed circuit board 2 and also the control electronics 12.
  • the housing 5 comprises a housing receptacle in which the control electronics 12, for example formed on the printed circuit board 2, for controlling the fuel pump 9 and the control electronics 12 at least partially encapsulating potting material 3, in particular a casting resin, is provided.
  • the potting material 3 is preferably formed from polyurethane. Such a valuable substance enables a shielding of the printed circuit board 2 and
  • Control electronics 12 so that the circuit board 2 is protected from mechanical influences and from corrosive influences by fluids.
  • the housing 5 for example the housing receptacle, has a wall region 13. An outside of the wall area 13 facing away from the control electronics 12 is always exposed to hydrocarbon vapors during the operation of the fuel delivery module 7 and thus the control device 1, since the tank flange 10 is arranged in the opening 15 of the fuel tank 8 and the outside of the wall area 13 faces the fuel tank 8.
  • the wall area 13 is, for example, a bottom of the housing receptacle.
  • an additional layer 4 is provided between the potting material 3 and the wall area 13.
  • the additional layer 4 is advantageously applied to the potting material and is used for
  • the potting material 3 is made of a casting resin, in particular of polyurethane.
  • the additional layer 4 is formed from an additional material, which consists in particular of epoxy resin. This has a higher resistance to the penetration of hydrocarbons than the potting material. The risk of damage to the printed circuit board 2 due to deformation of the potting material 3 due to the penetration of hydrocarbons is thus minimized.
  • the combination of potting material 3 and additional layer 4 preferably ensures that a mechanical and chemical protective effect is present.
  • the potting material 3 causes mechanical damage and
  • the additional layer 4 ensures that the potting material 3 is due to Hydrocarbons do not swell or degrade. Comprehensive protection of the printed circuit board 2 and the control electronics 12 is thus ensured.
  • the housing 5 by a
  • Housing cover 14 is at least partially closed.
  • a heat sink 6 is integrated into the housing cover and protrudes in particular from the potting material 3. The circuit board 2 and the control electronics 12 can thus be cooled by the heat sink 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

La présente invention concerne un dispositif de commande (1) destiné à commander une pompe à carburant électrique (9) et comprenant un boîtier (5) et une carte de circuit imprimé (2). La carte de circuit imprimé (2) est disposée dans le boîtier (5). Une électronique de commande (12), destinée à commander la pompe à carburant (9), qui est au moins partiellement entourée d'un matériau d'enrobage (3), est fixée à la carte de circuit imprimé (2). Le boîtier (5) comporte une zone de paroi (13) dont le côté extérieur, opposé à l'électronique de commande (12), est exposé à des vapeurs d'hydrocarbures pendant le fonctionnement du dispositif de commande. L'invention est caractérisée en ce qu'une couche supplémentaire (4) est formée entre le matériau d'enrobage (3) et la zone de paroi (13) du boîtier (5), qui est formée d'un matériau différent du matériau d'enrobage (3) et a une résistance à la pénétration d'hydrocarbures supérieure à celle du matériau d'enrobage (3).
PCT/EP2019/074649 2018-11-14 2019-09-16 Composant électrique, module d'alimentation en carburant et réservoir de carburant WO2020098996A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980075541.1A CN113016239B (zh) 2018-11-14 2019-09-16 控制设备、燃料输送模块以及燃料箱

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018219455.6 2018-11-14
DE102018219455.6A DE102018219455A1 (de) 2018-11-14 2018-11-14 Steuergerät, Kraftstofffördermodul sowie Kraftstofftank

Publications (1)

Publication Number Publication Date
WO2020098996A1 true WO2020098996A1 (fr) 2020-05-22

Family

ID=67988999

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/074649 WO2020098996A1 (fr) 2018-11-14 2019-09-16 Composant électrique, module d'alimentation en carburant et réservoir de carburant

Country Status (3)

Country Link
CN (1) CN113016239B (fr)
DE (1) DE102018219455A1 (fr)
WO (1) WO2020098996A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010285929A (ja) 2009-06-11 2010-12-24 Aisan Ind Co Ltd 燃料ポンプ用制御装置
DE102011003404A1 (de) * 2010-02-09 2011-08-11 DENSO CORPORATION, Aichi-pref. Kraftstoffzufuhrgerät
DE102013113337A1 (de) * 2013-04-30 2014-10-30 Kia Motors Corporation Kraftstoffpumpenmodul mit integrierter Steuereinrichtung
DE102014112048A1 (de) * 2013-12-02 2015-06-03 Hyundai Motor Company Kraftstoffpumpenmodul mit integrierter Steuereinrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3213465B2 (ja) * 1993-11-19 2001-10-02 株式会社ミツバ 燃料供給ポンプ
JP4410183B2 (ja) * 2005-01-27 2010-02-03 愛三工業株式会社 燃料供給装置
KR101164778B1 (ko) * 2010-02-19 2012-07-11 주식회사 코아비스 연료탱크 내부 장착형 드라이버 구비 연료펌프 모듈
DE102011086048A1 (de) * 2011-04-07 2012-10-11 Continental Teves Ag & Co. Ohg Gehäuseseitige Trennschicht zur Stressentkopplung von vergossenen Elektroniken
JP6221908B2 (ja) * 2014-04-01 2017-11-01 株式会社デンソー 燃料タンク蓋、および、それを有する燃料ポンプモジュール

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010285929A (ja) 2009-06-11 2010-12-24 Aisan Ind Co Ltd 燃料ポンプ用制御装置
DE102011003404A1 (de) * 2010-02-09 2011-08-11 DENSO CORPORATION, Aichi-pref. Kraftstoffzufuhrgerät
DE102013113337A1 (de) * 2013-04-30 2014-10-30 Kia Motors Corporation Kraftstoffpumpenmodul mit integrierter Steuereinrichtung
DE102014112048A1 (de) * 2013-12-02 2015-06-03 Hyundai Motor Company Kraftstoffpumpenmodul mit integrierter Steuereinrichtung

Also Published As

Publication number Publication date
CN113016239A (zh) 2021-06-22
DE102018219455A1 (de) 2020-05-14
CN113016239B (zh) 2023-03-03

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