EP4599169A1 - Dispositif de ventilation pour module de refroidissement de véhicule automobile - Google Patents
Dispositif de ventilation pour module de refroidissement de véhicule automobileInfo
- Publication number
- EP4599169A1 EP4599169A1 EP23783882.6A EP23783882A EP4599169A1 EP 4599169 A1 EP4599169 A1 EP 4599169A1 EP 23783882 A EP23783882 A EP 23783882A EP 4599169 A1 EP4599169 A1 EP 4599169A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- strip
- housing
- shell
- casing
- 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.)
- Pending
Links
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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially 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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
- F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
-
- 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/059—Roller bearings
Definitions
- the invention relates to a ventilation device for a cooling module, for example for a motor vehicle, in particular an electric one.
- a cooling module (or heat exchange module) of a motor vehicle conventionally comprises at least one heat exchanger and a ventilation device adapted to generate an air flow in contact with the heat exchanger, stopping the vehicle or at low driving speed.
- the heat exchanger is placed opposite at least two cooling bays, formed in the front face of the body of the motor vehicle.
- a first cooling bay is located above the bumper while a second bay is located below the bumper.
- Such a configuration is preferred because the heat engine must also be supplied with air, the air intake of the engine being conventionally located in the passage of the air flow passing through the upper cooling bay.
- electric vehicles are preferably equipped only with cooling bays located under the bumper, more preferably with a single cooling bay located under the bumper.
- the electric motor does not need to be supplied with air. And reducing the number of cooling bays makes it possible to improve the aerodynamic characteristics of the electric vehicle. This also results in better autonomy and a greater top speed of the motor vehicle.
- This member with tangential blades is driven in rotation by the electric motor via a shaft.
- This shaft is positioned precisely relative to the blade member, in particular via a bearing mounted in a bearing cylindrical provided for this purpose in the casing of the blade member.
- the bore of the bearing must be very precise, of the order of 1/100mm, in order to perfectly tighten the bearing and that its positioning is ideal for correctly guiding the shaft.
- the material used to manufacture the casing is plastic, and it does not allow for precision of this order.
- plastic tends to deform and expand over time and depending on the surrounding temperature.
- the casing is generally formed by two half-shells which together form a cylindrical surface.
- the casing is generally formed by two half-shells which together form a cylindrical surface.
- the present invention aims to improve the ventilation device of an electric motor vehicle, by proposing an innovative solution for placing the bearing in the optimal position in the bearing and maintaining it in the bearing, despite the dimensional variations of the plastic half-shells. during assembly and their deformations and expansions over time, whatever the temperature conditions.
- the present invention relates to a ventilation device extending in an axial direction X and comprising:
- -a blade member comprising a blade protection casing composed of a lower half-shell assembled to an upper half-shell;
- -an electric motor comprising a rotor from which a shaft extends along the axis
- This device is mainly characterized in that it comprises means for holding the bearing in position in the seat inserted between the bearing and the seat, only these holding means being in contact with the outer ring of the bearing, the holding means absorbing any dimensional variation of the lower part and the upper part of the bearing.
- the main idea of this invention consists of adding holding means between the outer ring of the bearing and the seat.
- it is no longer the seat which is in contact with the bearing, but it is the holding means which are in contact with the bearing.
- Such play may be due to dimensional variations during the manufacturing of the two half-shells, or to the long-term deformation and expansion of the plastic forming the two half-shells, these deformations sometimes appearing due to temperature variations in the environment of the bladed member.
- the lifespan of the ventilation device is thus extended, and maintenance operations to reposition the shaft, or to replace the half-shells, are reduced.
- Figure 3 is an exploded perspective view of the mounting of a means for holding a bearing in a lower part of the bearing of the ventilation device;
- Figure 8 illustrates a first possible configuration for detecting the correct installation of the holding means in the half-shells
- Figure 9 illustrates a second possible configuration for detecting the correct installation of the holding means in the half-shells
- Figure 1 0 illustrates a third possible configuration for detecting the correct installation of the holding means in the half-shells.
- the “axial” direction corresponds to that of main extension of the ventilation device illustrated by the axis X in Figure 1, and the “radial” direction is orthogonal to the axial direction.
- FIG. 1 describes an example of application of the invention, in particular a cooling module 1 of a motor vehicle, in particular with an electric motor.
- the cooling module 1 comprises a heat exchanger 20 as well as a ventilation device 2 according to an exemplary embodiment of the invention.
- This ventilation device 2 extends axially along the axis
- the half-shells 8a, 8b are able to be fitted into one another to close the casing 8.
- the lower half-shell 8a acts as a support, and the upper half-shell 8b acts as a cover.
- the ventilation device 2 comprises a bearing 9 disposed in a cylindrical bearing 18 of the casing 8 provided for this purpose.
- each half-shell 8a, 8b comprises a side wall 7 extending in a plane perpendicular to the axis delimited in part by a junction rim 10.
- the two joining edges 10 are positioned against each other.
- the joining edge 10 of the lower half-shell 8a is interrupted by the lower part 18a of the bearing surface 18, and the joining edge 10 of the upper half-shell 8b is interrupted by the upper part 18b of the scope 18.
- the two semi-cylindrical openings arranged opposite each other after closing the casing 8 form the bearing surface 18 accommodating the bearing 9.
- the half-shells 8a, 8b are made of plastic, by any known technique, of the plastic injection type, or molding, or other.
- the strip 13 intended to be housed in this housing 1 1 has a profile similar to that of the housing 1 1, in this case a central zone 14 coming to be placed in the rounded zone 1 1 a of the housing 1 1.
- the strip 13 can be completely flat before being put into position, where it can be preformed with its central zone 14 already formed in a rounded shape, in this case a half-moon.
- the strip 13 has a thickness slightly greater than the depth of the housing 11, so that it protrudes slightly from the bearing surface 18, in order to ensure that the outer ring 9a of the bearing 9 is well supported on band 13 and not on range 18 outside housing 1 1.
- Shaft 5 is mounted tight in the internal ring 9b of bearing 9.
- the strip 1 3 has a semi-circular rounded central zone 14 and two flat end tabs 15.
- the rounded central zone 14 is equipped with a positioning pin 16.
- Figure 8 illustrates a method for detecting the strips 13 in order to ensure that they are correctly placed in the housings 11 of the two half-shells 8a, 8b before closing the casing 8.
- a first sensor C1 makes it possible to capture the longest tab 15b of the upper strip 13 normally placed in the upper half-shell 8b.
- a second sensor C2 makes it possible to capture the longest tab 15b of the lower strip 13 normally placed in the lower half-shell 8a.
- the two strips 13 are identical and are simply turned over because they are positioned opposite each other, in the half-shells 8a, 8b.
- the installation of the means holding the bearing 9 in the ventilation device 2 comprises the following steps:
- Orifices 21 are provided in the surfaces 18a, 18b, in order to be able to clear the passage in the scanning zones of the sensors.
- the first obstacle detected by sensors C1 and C2 will be band 13.
- the diameter of the orifices 21 is 5mm minimum.
- Figure 9 shows the elements of Figure 8. To this are added two sensors C3 and C4, capable of capturing the short legs 15a of the lower and upper bands 13.
- two additional orifices 21 are provided in the surfaces 18a, 18b, in order to be able to clear the passage in the scanning zones of the sensors C3 and C4.
- Holes 22 are also provided in the long tabs 15b at the level of the capture zone of the sensors C2 and C4, so that they can capture the short tabs 15a through the long tabs 15b if necessary. This is particularly the case of the short tab 15a of the lower strip 13, which is captured using the sensor D3 through the hole 22 of the long tab 15b of the upper strip 13.
- All the long tabs 1 5b are provided with such a hole 22, so that the strips can be used both as lower strip 13 and upper strip 13.
- the strips 13 are thus all identical.
- each strip 13 comprises a transverse extension 23 at each lateral end.
- the sensors C1 and C3 capture the transverse extensions 23 of the upper band 13
- the sensors C2 and C4 capture the transverse extensions 23 of the lower band 13.
- the strips 13 have legs 15 of the same length.
- the strips 13 are again identical, because you just have to turn them over to have either the upper strip or the lower strip.
- the configurations shown in the figures cited are only possible examples, in no way limiting, of the invention which on the contrary encompasses variants of shapes and designs within the reach of those skilled in the art.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Frames (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2210286A FR3140657B1 (fr) | 2022-10-07 | 2022-10-07 | Dispositif de ventilation pour module de refroidissement de véhicule automobile |
| PCT/EP2023/077488 WO2024074574A1 (fr) | 2022-10-07 | 2023-10-04 | Dispositif de ventilation pour module de refroidissement de véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4599169A1 true EP4599169A1 (fr) | 2025-08-13 |
Family
ID=84819918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23783882.6A Pending EP4599169A1 (fr) | 2022-10-07 | 2023-10-04 | Dispositif de ventilation pour module de refroidissement de véhicule automobile |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4599169A1 (fr) |
| CN (1) | CN119923525A (fr) |
| FR (1) | FR3140657B1 (fr) |
| WO (1) | WO2024074574A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM292681U (en) * | 2005-12-19 | 2006-06-21 | Coochingchi Pong | Base structure of a cold and warm air conditioner |
| CN208010659U (zh) * | 2017-07-05 | 2018-10-26 | 珠海格力电器股份有限公司 | 风道组件及空调器 |
| WO2019007181A1 (fr) * | 2017-07-05 | 2019-01-10 | 格力电器(武汉)有限公司 | Ensemble de passage d'air et climatiseur |
| FR3100585B1 (fr) * | 2019-09-10 | 2021-08-06 | Valeo Systemes Thermiques | Procédé de fabrication d’un dispositif de ventilation pour module de refroidissement de véhicule automobile à turbomachine tangentielle |
-
2022
- 2022-10-07 FR FR2210286A patent/FR3140657B1/fr active Active
-
2023
- 2023-10-04 WO PCT/EP2023/077488 patent/WO2024074574A1/fr not_active Ceased
- 2023-10-04 CN CN202380070847.4A patent/CN119923525A/zh active Pending
- 2023-10-04 EP EP23783882.6A patent/EP4599169A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN119923525A (zh) | 2025-05-02 |
| FR3140657A1 (fr) | 2024-04-12 |
| FR3140657B1 (fr) | 2024-10-25 |
| WO2024074574A1 (fr) | 2024-04-11 |
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Legal Events
| Date | Code | Title | Description |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20250407 |
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| AK | Designated contracting states |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VALEO ELECTRIFICATION |