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US20020070009A1 - Arrangement for mounting a fan motor on a heat exchanger and automobile vehicle front assembly provided with that arrangement - Google Patents

Arrangement for mounting a fan motor on a heat exchanger and automobile vehicle front assembly provided with that arrangement Download PDF

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Publication number
US20020070009A1
US20020070009A1 US10/062,421 US6242102A US2002070009A1 US 20020070009 A1 US20020070009 A1 US 20020070009A1 US 6242102 A US6242102 A US 6242102A US 2002070009 A1 US2002070009 A1 US 2002070009A1
Authority
US
United States
Prior art keywords
arrangement
motor
support
screw
heat exchanger
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.)
Abandoned
Application number
US10/062,421
Inventor
Alain Vadrot
Alain Battel
David Negre
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.)
ECIA Equipements et Composants pour lIndustrie Automobile SA
Original Assignee
ECIA Equipements et Composants pour lIndustrie Automobile SA
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
Priority claimed from US09/669,905 external-priority patent/US6360815B1/en
Application filed by ECIA Equipements et Composants pour lIndustrie Automobile SA filed Critical ECIA Equipements et Composants pour lIndustrie Automobile SA
Priority to US10/062,421 priority Critical patent/US20020070009A1/en
Publication of US20020070009A1 publication Critical patent/US20020070009A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/04—Pump-driving arrangements
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/04—Pump-driving arrangements
    • F01P2005/046—Pump-driving arrangements with electrical pump drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2070/00—Details
    • F01P2070/50—Details mounting fans to heat-exchangers

Definitions

  • the present invention relates to an improved arrangement for mounting a fan motor on a heat exchanger and an automobile vehicle front assembly provided therewith.
  • the object of the invention is to prevent such unwanted airflow disruption and noise effects and to minimize the weight and cost of the arrangement used to mount the fan motor on the heat exchanger.
  • the invention provides an arrangement for mounting a fan motor on a heat exchanger comprising a body extending between two heat-exchange fluid tanks connected together by tubes carrying cooling fins and in which a heat-exchange fluid flows, wherein the motor is fixed to a support at least one portion of which is molded onto the body.
  • the support comprises an elastomer first portion connected to the body and a plastics material second portion molded at the same time as the first portion and connected to the motor,
  • the at least one portion of the support which is molded onto the body is made of a plastics material
  • the motor is fixed to the support by at least one screw screwed into the support
  • the at least one screw is a self-tapping screw
  • the motor includes at least one fixing lug forming an apertured seat for the screw, and
  • the support is provided with at least one motor fixing finger and the screw is screwed into an axial hole in the finger.
  • the invention also provides an automobile vehicle front assembly comprising an arrangement as defined above.
  • FIG. 1 is a perspective view of a heat exchanger on which a fan motor is mounted using an arrangement in accordance with the invention.
  • FIG. 2 is a view of the heat exchanger in section taken along the line 2 - 2 in FIG. 1, showing in more detail how the fan motor is fixed to the body of the heat exchanger.
  • FIG. 1 shows an automobile vehicle front assembly 10 provided with a heat exchanger 12 and an electric fan unit 13 .
  • the electric fan unit 13 includes an electric motor 14 driving a standard fan 16 provided with a cowl 18 and a series of blades 20 , only one of which is shown in FIG. 2.
  • the fan 16 is not shown in FIG. 1 for simplicity. It is mounted on the shaft of the motor 14 in a manner that is known in the art.
  • the heat exchanger includes a body 22 provided with cooling fins 24 carried by a bundle of tubes 26 in which a heat-exchange fluid flows.
  • the body 22 extends between two heat-exchange fluid tanks, a bottom tank 28 and a top tank 30 .
  • the tanks 28 , 30 are connected together by substantially vertical tubes 26 .
  • the fins 24 are plane, for example, and the tubes 26 pass through them.
  • the body 22 has a flattened and substantially parallelepipedal general shape defining parallel and substantially vertical opposite large faces.
  • the motor 14 is fixed to one of these two large faces of the body 22 , as described below.
  • the motor 14 is fixed to a support 32 having at least one portion molded onto the body 22 .
  • the material of the molded portion is preferably a thermosetting plastics material or thermoplastics material.
  • the molding is performed by a method known in the art, for example by injecting or compressing the plastics material so that the fins 24 and the tubes 26 are at least partly embedded in the plastics material.
  • the support 32 preferably has an elastomer first part 32 A connected to the body 22 and a plastics material second part 32 B connected to the motor 14 and molded at the same time as the first part 32 A.
  • the first part 32 A of the support which has a rubber-like elasticity, absorbs vibration of the motor 14 to prevent it propagating into the body 22 of the heat exchanger.
  • the motor 14 is fixed to the support 32 by at least one screw, preferably a self-tapping screw, screwed into the support 32 .
  • the motor 14 is fixed to the support 32 by three self-tapping screws 34 .
  • the screws 34 are carried by three fixing lugs 36 each forming an apertured seat for the corresponding screw 34 .
  • the lugs 36 are attached to the outside of a generally cylindrical housing 38 of the motor 14 .
  • the second part 32 B of the support is provided with three fixing fingers 40 associated with the three screws 34 .
  • Each screw 34 is screwed into an axial blind hole 42 in a corresponding finger 40 .
  • the second part 32 B of the support has no rubber-like elasticity and provides a rigid connection between the support 32 and the screws 34 .
  • the invention is not limited to the embodiment previously described.
  • the molded material is not necessarily a plastics material and could instead be aluminum or an aluminum alloy.
  • the advantages of the invention include the fact that it enables the fan motor to be fixed to the body of the heat exchanger with simple, light and low-cost fixing means, which fixing means minimize unwanted airflow disruption and noise effects.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

In an arrangement for mounting a fan motor on a heat exchanger comprising a body extending between two heat-exchange fluid tanks connected together by tubes carrying cooling fins and in which a heat-exchange fluid flows, the motor is fixed to a support at least one portion of which is molded onto the body. The motor is preferably fixed to the support by at least one screw, for example a self-tapping screw, screwed into the support. The molded material is preferably a plastics material.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the invention [0001]
  • The present invention relates to an improved arrangement for mounting a fan motor on a heat exchanger and an automobile vehicle front assembly provided therewith. [0002]
  • 2. Description of the prior art [0003]
  • There is already known in the art an arrangement for mounting a fan motor on a heat exchanger comprising a body extending between two heat-exchange fluid tanks connected by tubes carrying cooling fins and in which a heat-exchange fluid flows. [0004]
  • An arrangement of the above type is described in FR-A-2 748 559, for example. In that document the fan motor is fixed to the body of the exchanger by means of arms hooked onto the edges of the body, for example. It is found that the fixing arms tend to create unwanted airflow disruption and noise effects. [0005]
  • The object of the invention is to prevent such unwanted airflow disruption and noise effects and to minimize the weight and cost of the arrangement used to mount the fan motor on the heat exchanger. [0006]
    • SUMMARY OF THE INVENTION
  • The invention provides an arrangement for mounting a fan motor on a heat exchanger comprising a body extending between two heat-exchange fluid tanks connected together by tubes carrying cooling fins and in which a heat-exchange fluid flows, wherein the motor is fixed to a support at least one portion of which is molded onto the body. [0007]
  • According to other features of the arrangement: [0008]
  • the support comprises an elastomer first portion connected to the body and a plastics material second portion molded at the same time as the first portion and connected to the motor, [0009]
  • the at least one portion of the support which is molded onto the body is made of a plastics material, [0010]
  • the motor is fixed to the support by at least one screw screwed into the support, [0011]
  • the at least one screw is a self-tapping screw, [0012]
  • the motor includes at least one fixing lug forming an apertured seat for the screw, and [0013]
  • the support is provided with at least one motor fixing finger and the screw is screwed into an axial hole in the finger. [0014]
  • The invention also provides an automobile vehicle front assembly comprising an arrangement as defined above. [0015]
  • The invention will be better understood after reading the following description, which is given by way of example only and with reference to the accompanying drawing.[0016]
    • BRIEF DESCRIPTION OF THE DRAWING
  • FIG. 1 is a perspective view of a heat exchanger on which a fan motor is mounted using an arrangement in accordance with the invention. [0017]
  • FIG. 2 is a view of the heat exchanger in section taken along the line [0018] 2-2 in FIG. 1, showing in more detail how the fan motor is fixed to the body of the heat exchanger.
    • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • FIG. 1 shows an automobile [0019] vehicle front assembly 10 provided with a heat exchanger 12 and an electric fan unit 13. The electric fan unit 13 includes an electric motor 14 driving a standard fan 16 provided with a cowl 18 and a series of blades 20, only one of which is shown in FIG. 2. The fan 16 is not shown in FIG. 1 for simplicity. It is mounted on the shaft of the motor 14 in a manner that is known in the art.
  • The heat exchanger includes a [0020] body 22 provided with cooling fins 24 carried by a bundle of tubes 26 in which a heat-exchange fluid flows.
  • The [0021] body 22 extends between two heat-exchange fluid tanks, a bottom tank 28 and a top tank 30. The tanks 28, 30 are connected together by substantially vertical tubes 26.
  • The [0022] fins 24 are plane, for example, and the tubes 26 pass through them.
  • The [0023] body 22 has a flattened and substantially parallelepipedal general shape defining parallel and substantially vertical opposite large faces. The motor 14 is fixed to one of these two large faces of the body 22, as described below.
  • The [0024] motor 14 is fixed to a support 32 having at least one portion molded onto the body 22. The material of the molded portion is preferably a thermosetting plastics material or thermoplastics material. The molding is performed by a method known in the art, for example by injecting or compressing the plastics material so that the fins 24 and the tubes 26 are at least partly embedded in the plastics material.
  • The [0025] support 32 preferably has an elastomer first part 32A connected to the body 22 and a plastics material second part 32B connected to the motor 14 and molded at the same time as the first part 32A.
  • The [0026] first part 32A of the support, which has a rubber-like elasticity, absorbs vibration of the motor 14 to prevent it propagating into the body 22 of the heat exchanger.
  • The [0027] motor 14 is fixed to the support 32 by at least one screw, preferably a self-tapping screw, screwed into the support 32. In the example described the motor 14 is fixed to the support 32 by three self-tapping screws 34.
  • The [0028] screws 34 are carried by three fixing lugs 36 each forming an apertured seat for the corresponding screw 34. The lugs 36 are attached to the outside of a generally cylindrical housing 38 of the motor 14.
  • The [0029] second part 32B of the support is provided with three fixing fingers 40 associated with the three screws 34. Each screw 34 is screwed into an axial blind hole 42 in a corresponding finger 40.
  • Note that, unlike the [0030] first part 32A, the second part 32B of the support has no rubber-like elasticity and provides a rigid connection between the support 32 and the screws 34.
  • The invention is not limited to the embodiment previously described. In particular, the molded material is not necessarily a plastics material and could instead be aluminum or an aluminum alloy. [0031]
  • The advantages of the invention include the fact that it enables the fan motor to be fixed to the body of the heat exchanger with simple, light and low-cost fixing means, which fixing means minimize unwanted airflow disruption and noise effects. [0032]

Claims (8)

There is claimed:
1. An arrangement for mounting a fan motor on a heat exchanger comprising a body extending between two heat-exchange fluid tanks connected together by tubes carrying cooling fins and in which a heat-exchange fluid flows, wherein said motor is fixed to a support at least one portion of which is molded onto said body.
2. The arrangement claimed in claim 1 wherein said support comprises an elastomer first portion connected to said body and a plastics material second portion molded at the same time as said first portion and connected to said motor.
3. The arrangement claimed in claim 1 wherein said at least one portion of said support which is molded onto said body is made of a plastics material.
4. The arrangement claimed in claim 1 wherein said motor is fixed to said support by at least one screw screwed into said support.
5. The arrangement claimed in claim 4 wherein said at least one screw is a self-tapping screw.
6. The arrangement claimed in claim 4 wherein said motor includes at least one fixing lug forming an apertured seat for said screw.
7. The arrangement claimed in claim 4 wherein said support is provided with at least one motor fixing finger and said screw is screwed into an axial hole in said finger.
8. An automobile vehicle front assembly comprising an arrangement in accordance with any one of claims 1 to 6.
US10/062,421 2000-09-27 2002-02-05 Arrangement for mounting a fan motor on a heat exchanger and automobile vehicle front assembly provided with that arrangement Abandoned US20020070009A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/062,421 US20020070009A1 (en) 2000-09-27 2002-02-05 Arrangement for mounting a fan motor on a heat exchanger and automobile vehicle front assembly provided with that arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/669,905 US6360815B1 (en) 1999-06-29 2000-09-27 Arrangement for mounting a fan motor on a heat exchanger and automobile vehicle front assembly provided with that arrangement
US10/062,421 US20020070009A1 (en) 2000-09-27 2002-02-05 Arrangement for mounting a fan motor on a heat exchanger and automobile vehicle front assembly provided with that arrangement

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US09/669,905 Division US6360815B1 (en) 1999-06-29 2000-09-27 Arrangement for mounting a fan motor on a heat exchanger and automobile vehicle front assembly provided with that arrangement

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US20020070009A1 true US20020070009A1 (en) 2002-06-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040255878A1 (en) * 1999-10-29 2004-12-23 Robert Bosch Corporation, A Massachusetts Corporation Mount for connecting automotive fan motor to housing
WO2008043619A1 (en) * 2006-10-06 2008-04-17 Robert Bosch Gmbh Cooling fan and method for producing a cooling fan

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040255878A1 (en) * 1999-10-29 2004-12-23 Robert Bosch Corporation, A Massachusetts Corporation Mount for connecting automotive fan motor to housing
US7318394B2 (en) * 1999-10-29 2008-01-15 Robert Bosch Llc Mount for connecting automotive fan motor to housing
WO2008043619A1 (en) * 2006-10-06 2008-04-17 Robert Bosch Gmbh Cooling fan and method for producing a cooling fan
US8720064B2 (en) 2006-10-06 2014-05-13 Robert Bosch Gmbh Cooling fan and method for producing a cooling fan

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