EP1553374A1 - Lüfterhaube- und Wärmetauscheranordnung - Google Patents

Lüfterhaube- und Wärmetauscheranordnung Download PDF

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Publication number
EP1553374A1
EP1553374A1 EP04100058A EP04100058A EP1553374A1 EP 1553374 A1 EP1553374 A1 EP 1553374A1 EP 04100058 A EP04100058 A EP 04100058A EP 04100058 A EP04100058 A EP 04100058A EP 1553374 A1 EP1553374 A1 EP 1553374A1
Authority
EP
European Patent Office
Prior art keywords
fan shroud
heat exchanger
leg
lower hook
assembly
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Withdrawn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
EP04100058A
Other languages
English (en)
French (fr)
Inventor
Jamil Ben Hamida
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to EP04100058A priority Critical patent/EP1553374A1/de
Publication of EP1553374A1 publication Critical patent/EP1553374A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures

Definitions

  • the present invention relates in general to a fan shroud and heat exchanger assembly and in particular to an improved assembly or mounting of a fan shroud to a heat exchanger in an automotive application.
  • the fan shroud is fixedly mounted on the heat exchanger.
  • connection points are provided, two at the top and two at the bottom of the fan shroud, and conventionally the fan shroud is fastened by means of respective screws to respective threaded openings of the heat exchanger.
  • the above arrangement provides a strong and robust connection between the fan shroud and the heat exchanger.
  • the process, per se, of mounting of the fan shroud is relatively time consuming.
  • EP-A-291 021 discloses a fan shroud / heat exchanger assembly, wherein resilient hooks formed on the fan shroud engage behind webs of a support element mounted on a header tank of the heat exchanger.
  • the assembly of EP-A-291 021 does not provide for sufficient stability and mechanical strength both in the horizontal and vertical directions. Thus, the heat exchanger can suffer damage and can break.
  • FR-A-2 713 754 also discloses a fan shroud / heat exchanger assembly, wherein the fan shroud is provided, at its lower side, with circular arched hooks which can be accommodated in corresponding arched slots at the lower side of the heat exchanger. Therefore, when the hooks are engaged into the slots, the fan shroud can be rotated into a vertical position and snap coupled, by a coupling provided at its upper side, to the upper side of the heat exchanger.
  • the assembly of EP-A-2 713 754 does not provide for sufficient stability both in the horizontal and vertical directions. Thus, the heat exchanger can suffer damage and can break.
  • DE-A-42 44 037 discloses a fan shroud with a plurality of arms protruding in opposite directions for engaging and snapping into respective lower and upper side portions of a header tank of a cooling system.
  • the assembly of DE-A-42 44 037, in a similar manner to the abovementioned prior art, does not provide for sufficient stability and mechanical strength both in the horizontal and vertical directions.
  • the present invention relates to an assembly for a fan shroud and a heat exchanger comprising at least one lower hook on the heat exchanger and at least one leg on the fan shroud.
  • the lower hook has a slot adapted for the insertion of the leg.
  • the leg further includes a blocking means arranged and shaped such as to allow a loose fit between the leg and the lower hook when the fan shroud and the heat exchanger are in the process of being assembled together as well as to cause a tight fit between the leg and the lower hook when the fan shroud and the heat exchanger are in their final assembled state.
  • the loose fit allows for an easy and fast connection of the fan shroud and the heat exchanger prior to their final assembly.
  • the tight fit completes the assembly by locking the two parts together.
  • the tight fit results in a lack of play, thereby preventing any movement of the fan shroud with respect to the heat exchanger.
  • the assembly has a bearing capacity for external constraints, such as the weight load.
  • a gap is formed in the slot of the lower hook substantially corresponds to a thickness of the leg, such that, in the assembled state of the fan shroud and the heat exchanger, substantially no clearance is formed between the leg and the slot and such as to enable a pre-load of the leg in the slot.
  • the leg is substantially L-shaped
  • the lower hook is shaped complementary to the leg.
  • the blocking means is shaped and sized such as to allow the fan shroud to be inserted at an angle from the vertical position with its legs into the slot of the lower hook, and then rotated until it is in a substantially vertical position.
  • the blocking means is formed as a wedge-shaped rib.
  • the wedge-shaped rib comprises a blocking surface, which can e.g. be straight, concave or convex.
  • the blocking means can also be formed of a plurality of ribs, thereby increasing strength of the leg.
  • a lower angle of the fan shroud can be rounded, such as to facilitate the insertion and assembly of the legs into the slot of the lower hook.
  • the blocking means is formed as an eccentric, which is implemented as a circular cylinder comprising a rib protruding from the cylinder surface and adapted for insertion into a seating of the lower hook.
  • the fan shroud is provided with at least one through hole so as to allow the passing of at least one stud or nut for attachment to a top bracket of the heat exchanger.
  • a fan shroud indicated with reference numeral 5 and a condenser 12 of a heat exchanger of an air conditioning system (for instance an automotive air conditioning system).
  • an air conditioning system for instance an automotive air conditioning system.
  • the terms lower/upper, left/right and vertical/horizontal are only intended for illustrative purposes and are by no means conceived to limit the scope of the invention.
  • the fan shroud 5 is provided, at the lower part thereof, with substantially L-shaped legs 1 (the illustrated embodiment shows two such legs) and at the upper part thereof with through holes 6 (the illustrated embodiment shows two such holes).
  • the heat exchanger is provided, at the lower part thereof, with lower hooks 3 (the illustrated embodiment shows two such hooks), each hook 3 being formed with a respective slot 4 adapted for the insertion of a respective leg 1 of the fan shroud 5 that has to be attached to the heat exchanger and each hook 3 being shaped complementary to its respective leg 1.
  • the fan shroud 5 is inserted at an angle (Fig. 4) with its legs 1 into the respective slot 4 of the lower hook 3 of the condenser 12, and then rotated (Fig. 5) until it is in an essentially vertical position.
  • the vertical extension of a gap 10 formed in each slot 4 of the lower hook 3 of the heat exchanger substantially corresponds to the thickness of the leg 1 and preferably has no clearance to enable a pre-load, as indicated by arrows 11 in Fig. 5, of the leg 1 in the slot 4. This ensures a tight contact with the lower hook 3 and avoids any movement in the vertical direction.
  • a blocking means is provided for tightly connecting the fan shroud 5 to the lower hook 3.
  • the blocking means is represented by a rib 2.
  • the upper end of the fan shroud 5 is fixed to a top bracket (not shown) of the heat exchanger e.g. by means of studs and nuts (also not shown).
  • the through holes 6 which are provided in the fan shroud 5 allow passing the studs therethrough.
  • Fig. 6 is a perspective view of an assembly according to the first embodiment, wherein blocking means are implemented as a plurality of ribs 2', each shaped as the rib of the first embodiment.
  • the plurality of ribs improves the stability and mechanical strength of the assembly.
  • Fig. 7 shows is a schematic side view of some possible shapes of the ribs.
  • the tight fit is mainly obtained by means of the blockings surface 13, which can e.g. be a) straight, b) concave or c) convex.
  • the lower angle 15 of the fan shroud 5 at the L-shaped legs 1 can be rounded, as shown in fig. 8, in order to facilitate the insertion and assembly of the legs 1.
  • the blocking means can be achieved by an eccentric 22 which is implemented, for instance, as a circular cylinder 22' comprising a rib 22" protruding from the cylinder surface.
  • the rib 22" is inserted into a seating section 3' of the hook 3 in a substantially vertical manner, as shown by the broken line eccentric, and then rotated until it wedges tight the seating section 3'.
  • the present invention fully achieves its objects by the provision of the blocking means in the lower connection points.
  • the lower hooks 3 are caused to contribute to a better load distribution, wherein the blocking means forbids any movement in any direction.
  • the fan shroud and the heat exchanger can be quickly and easily assembled due to hooks at lower end and screws at top end, when compared to systems with screws at both the lower and top ends.
  • the rigidity of the assembly is similar to the screw system. Some of the load is taken off the top connection points. The lower hooks retains the fan shroud in the two vertical directions and furthermore, the tight fit (due to blocking means) retains the fan shroud in the four directions of the horizontal plane.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP04100058A 2004-01-09 2004-01-09 Lüfterhaube- und Wärmetauscheranordnung Withdrawn EP1553374A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04100058A EP1553374A1 (de) 2004-01-09 2004-01-09 Lüfterhaube- und Wärmetauscheranordnung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04100058A EP1553374A1 (de) 2004-01-09 2004-01-09 Lüfterhaube- und Wärmetauscheranordnung

Publications (1)

Publication Number Publication Date
EP1553374A1 true EP1553374A1 (de) 2005-07-13

Family

ID=34585992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04100058A Withdrawn EP1553374A1 (de) 2004-01-09 2004-01-09 Lüfterhaube- und Wärmetauscheranordnung

Country Status (1)

Country Link
EP (1) EP1553374A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011047666A3 (de) * 2009-10-22 2012-05-31 Magna Electronics Europe Gmbh & Co. Kg Kühlermodul für ein kraftfahrzeug

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327956A (en) * 1993-03-05 1994-07-12 Carrier Corporation Condenser fan orifice for room air conditioner
US5657817A (en) * 1994-07-18 1997-08-19 Behr Gmbh & Co. Arrangement for connecting two or more heat exchanges
DE19953787A1 (de) * 1999-11-09 2001-05-10 Behr Gmbh & Co Anordnung zur gegenseitigen Verbindung von zwei Wärmeübertragern
US6315034B1 (en) * 1998-10-29 2001-11-13 Valeo Thermique Moteur Automobile heat exchanger module comprising a fan shroud and a heat exchanger, in particular for motor vehicle
US20030230397A1 (en) * 2002-06-13 2003-12-18 Southwick David A. Plastic attachment bracket for metal heat exchanger tank

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327956A (en) * 1993-03-05 1994-07-12 Carrier Corporation Condenser fan orifice for room air conditioner
US5657817A (en) * 1994-07-18 1997-08-19 Behr Gmbh & Co. Arrangement for connecting two or more heat exchanges
US6315034B1 (en) * 1998-10-29 2001-11-13 Valeo Thermique Moteur Automobile heat exchanger module comprising a fan shroud and a heat exchanger, in particular for motor vehicle
DE19953787A1 (de) * 1999-11-09 2001-05-10 Behr Gmbh & Co Anordnung zur gegenseitigen Verbindung von zwei Wärmeübertragern
US20030230397A1 (en) * 2002-06-13 2003-12-18 Southwick David A. Plastic attachment bracket for metal heat exchanger tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011047666A3 (de) * 2009-10-22 2012-05-31 Magna Electronics Europe Gmbh & Co. Kg Kühlermodul für ein kraftfahrzeug
CN102639875A (zh) * 2009-10-22 2012-08-15 麦格纳电子欧洲两合公司 用于机动车的散热器模块

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