EP4602273A1 - Dispositif de ventilation comprenant des moyens de rétention - Google Patents
Dispositif de ventilation comprenant des moyens de rétentionInfo
- Publication number
- EP4602273A1 EP4602273A1 EP23783435.3A EP23783435A EP4602273A1 EP 4602273 A1 EP4602273 A1 EP 4602273A1 EP 23783435 A EP23783435 A EP 23783435A EP 4602273 A1 EP4602273 A1 EP 4602273A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- torque transmission
- transmission part
- blade member
- retention means
- ventilation device
- 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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- 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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/022—Units comprising pumps and their driving means comprising a yielding coupling, e.g. hydraulic
-
- 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
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
Definitions
- the present invention relates to a ventilation device comprising:
- a torque transmission part arranged to transmit a torque developed by the electric motor to the blade member, the transmission part of torque comprising: o a first section intended to transmit the torque developed by the electric motor from the torque transmission part to the blade member and o a second section intended to fix the torque transmission part to the electric motor, l arrangement of the blade member with the torque transmission part forming a coupling and the device being characterized in that it comprises retention means configured to retain within the coupling elements produced during the interaction of the blade member with the torque transmission part.
- the present invention thus makes it possible to prevent any pollution of the electric motor due to the operation of the ventilation device and this by projection of elements produced by the operation of the blade member arranged with the torque transmission part.
- the coupling of the blade member with the torque transmission part defines a volume formed by the contact zones and the mechanical clearances between the first section and the blade member.
- the volume of the coupling corresponds to the interstitial space between the first section and the blade member.
- the coupling of the blade member with the torque transmission part can be direct or indirect via one or more intermediate parts.
- the elements produced are, for example, dust, wear chips or a lubricant leak.
- the retention means of the device aim to retain these elements produced within the volume defined by the coupling of the blade member with the torque transmission part.
- the blade member and/or the torque transmission part comprise the retention means.
- the blade member and the torque transmission part in operation rotate around an axis of rotation
- the retention means are arranged all around the axis of rotation. It is thus understood that the retention means extend circularly around the axis of rotation.
- the torque transmission part comprises a peripheral wall arranged to cooperate with the retention means.
- the torque transmission part comprises a first face oriented towards the blade member and a second face oriented towards the electric motor, the peripheral wall extending from the first face towards the 'outside.
- the peripheral wall extends perpendicular to the first face of the torque transmission part.
- the first section comprises an imprint arranged to transmit the torque to a counter-imprint of the blade member.
- the peripheral wall extends circularly with respect to the axis of rotation so as to surround the footprint of the first section.
- the retention means are smaller than the blade member as well as the torque transmission part. This makes it possible to conserve the size of the ventilation device.
- the blade member comprises the retention means.
- the retention means are arranged on the counter-recess of the blade member.
- the torque transmission part preferably the first section, comprises the retention means.
- the retention means comprise a skirt
- the skirt comprises a first part connected to the blade member and extending radially to the axis of rotation and a second part connected to the first part and extending parallel to the peripheral wall towards the torque transmission part.
- the skirt and the peripheral wall are spaced from each other so as to form a space between the second part of the skirt and the peripheral wall.
- the skirt and the peripheral wall do not touch and that the space between them forms a void.
- the space between the skirt and the peripheral wall is less than or equal to 2 millimeters.
- the retention means are sealing means configured to seal the first section of the torque transmission part.
- the sealing means comprise a sealing lip configured to cooperate with the peripheral wall.
- the sealing means comprise an annular seal configured to cooperate with the peripheral wall.
- the lip is in contact with an interior wall of the peripheral wall oriented towards the axis of rotation in order to ensure the sealing of the first section.
- the lip is surrounded by the peripheral wall.
- the lip is in contact with an exterior wall of the peripheral wall in order to ensure the sealing of the first section. We thus understand that the lip surrounds the peripheral wall.
- the lip is in contact with an upper end of the peripheral wall in order to ensure the sealing of the first section.
- the sealing means are arranged on the peripheral wall and cooperate with the counter-recess of the blade member.
- the sealing means extend from an interior wall of the peripheral wall.
- the sealing means extend from an exterior wall of the peripheral wall.
- the retention means are made integrally with the counter-imprint of the blade member or made integrally with the torque transmission part.
- the retention means are overmolded with the counter-impression of the blade member or with the torque transmission part.
- the retention means are molded with the counter-impression of the blade member or with the torque transmission part by a two-material molding.
- the retention means are attached to the counter-recess of the blade member or to the torque transmission part.
- the retention means are fixed by gluing to the counter-impression or to the torque transmission part.
- the retention means are mounted in a circular groove positioned on the counter-recess or on the peripheral wall of the torque transmission part.
- the counter-impression of the blade member is an attached part.
- the counter-impression is assembled to the blade member by fixing means (screw, rivet, clip, etc.).
- the blade member comprises a shaft configured to be housed in a hub inserted by overmolding in the counter-recess.
- the second section is a mechanical fixing via fixing means (screw, rivet, clip etc.).
- the first section is closer to the axis of rotation than the second section. We understand that the first section is arranged more in the center of the torque transmission part than the second section, which surrounds the first section.
- FIG 1 is a schematic sectional view of a cooling module according to an example of application of the invention.
- FIG 2 is a schematic view of a ventilation device according to the prior art
- FIG 3 is a schematic view of the torque transmission part according to the invention with the retention means
- FIG 4 is a schematic sectional view of the torque transmission part with the retention means according to a first embodiment of the invention
- FIG 5 is a schematic sectional view of the torque transmission part with the retention means according to a second embodiment of the invention.
- FIG 6 is a schematic sectional view of the torque transmission part with the retention means according to an alternative of the second embodiment of the invention.
- FIG 7 is a schematic sectional view of the torque transmission part with the retention means according to another alternative of the second embodiment of the invention. It should first be noted that if the figures present the invention in detail for its implementation, these figures can of course be used to better define the invention if necessary. It should also be noted that these figures only show a few examples of implementation of the invention.
- FIG. 1 describes an example of application of the invention, in particular a cooling module 50 of a motor vehicle, in particular with an electric motor.
- the cooling module 50 comprises a housing or fairing 200 forming an internal channel 300.
- the housing 200 makes it possible to accommodate at least one heat exchanger 400 as well as a ventilation device 100 according to an example of embodiment of the invention.
- This ventilation device 100 comprises a blade member 1.
- FIG. 2 represents a ventilation device according to the prior art.
- This ventilation device includes: • a bladed member 1,
- a torque transmission part 3 arranged to transmit a torque developed by the electric motor 2 to the blade member 1, the torque transmission part 3 comprising: o a first section 4 intended to transmit the torque developed by the motor electrical 2 of the torque transmission part 3 to the blade member 1 and o a second section 5 intended to fix the torque transmission part 3 to the electric motor 2.
- the arrangement of the blade member 1 with the torque transmission part 3 forming a coupling 6 and the device 100 being characterized in that it comprises retention means 7 configured to retain within the coupling 6 elements produced during the interaction of the blade member 1 with the torque transmission part 3.
- the blade member 1 and/or the torque transmission part 3 comprise the retention means 7.
- the blade member 1 and the torque transmission part 3 in operation rotate around an axis of rotation 8, the retention means 7 are arranged all around the axis of rotation 8. It is thus understood that the means of retention 7 extend circularly around the axis of rotation 8.
- the torque transmission part 3 comprises a peripheral wall 9 arranged to cooperate with the retention means 7.
- the torque transmission part 3 comprises a first face 30 oriented towards the blade member 1 and a second face 31 oriented towards the electric motor 2, the peripheral wall 9 extending from the first face 30 towards the outside.
- the peripheral wall 9 extends perpendicular to the first face 30 of the torque transmission part 3.
- the first section 4 comprises a recess 10 arranged to transmit the torque to a counter-recess 11 of the blade member 1.
- the peripheral wall 9 extends circularly with respect to the axis of rotation 8 so as to surround the imprint 10 of the first section 4.
- the retention means 7 are smaller than the blade member 1 as well as the torque transmission part 3. This makes it possible to conserve the size of the ventilation device 100.
- the blade member 1 comprises the retention means 7.
- the retention means 7 are arranged on the counter-recess 11 of the blade member 1.
- the torque transmission part 3, preferably the first section 4 comprises the retention means 7.
- the retention means 7 comprise a skirt 70, the skirt 70 comprises a first part 700 connected to the blade member 1 and extending radially to the axis of rotation 8 and a second part 701 connected to the first part 700 and extending parallel to the peripheral wall 9 towards the torque transmission part 3.
- the skirt 70 and the peripheral wall 9 are spaced apart from each other so as to form a space 12 between the second part 701 of the skirt 70 and the peripheral wall 9. It is thus understood that the skirt 70 and the peripheral wall 9 do not touch and that the space 12 between them forms a void.
- the space 12 between the skirt 70 and the peripheral wall 9 is less than or equal to 2 millimeters.
- the retention means 7 are sealing means 7 configured to seal the first section 4 of the torque transmission part 3.
- the sealing means 7 comprise a sealing lip 71 configured to cooperate with the peripheral wall 9.
- the sealing means 7 comprise an annular seal 72 configured to cooperate with the peripheral wall 9.
- the lip 71 is in contact with an interior wall 90 of the peripheral wall 9 oriented towards the axis of rotation 8 in order to ensure the sealing of the first section 4.
- the lip 71 is surrounded by the peripheral wall 9.
- the lip 71 is in contact with an exterior wall 91 of the peripheral wall 9 in order to ensure the sealing of the first section 4. It is thus understood that the lip 71 surrounds the peripheral wall 9.
- the lip 71 is in contact with an upper end 92 of the peripheral wall 9 in order to ensure the sealing of the first section 4.
- the sealing means 7 are arranged on the peripheral wall 9 and cooperate with the counter-recess 11 of the blade member 1.
- the sealing means 7 can either extend from an interior wall 90 of the peripheral wall 9, or from an exterior wall 91 of the peripheral wall 9.
- the retention means 7 are integral with the counter-recess 11 of the blade member 1 or integral with the torque transmission part 3.
- the retention means 7 are attached to the counter-recess 11 of the blade member 1 or to the torque transmission part 3.
- the retention means 7 are fixed by gluing to the counter-recess 11 or to the torque transmission part 3.
- the retention means 7 are mounted in a circular groove 13 positioned on the counter-recess 11 or on the peripheral wall 9 of the torque transmission part 3.
- the counter-recess 11 of the blade member 1 is an attached part.
- the blade member 1 comprises a shaft 14 not visible in the figures and configured to be housed in a hub 15 inserted by overmolding in the counter-recess 11.
- the counter-recess 11 is assembled to the blade member 1 by fixing means (screw, rivet, clip, etc.). It is also possible, although not illustrated in the figures, to have the counter-impression 11 in one piece with the blade member 1 by overmolding directly on the shaft 14 of the blade member 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2210373A FR3140656B1 (fr) | 2022-10-10 | 2022-10-10 | Dispositif de ventilation comprenant des moyens de rétention |
| PCT/EP2023/077490 WO2024078947A1 (fr) | 2022-10-10 | 2023-10-04 | Dispositif de ventilation comprenant des moyens de rétention |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4602273A1 true EP4602273A1 (fr) | 2025-08-20 |
Family
ID=84362686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23783435.3A Pending EP4602273A1 (fr) | 2022-10-10 | 2023-10-04 | Dispositif de ventilation comprenant des moyens de rétention |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4602273A1 (fr) |
| CN (1) | CN120019209A (fr) |
| FR (1) | FR3140656B1 (fr) |
| WO (1) | WO2024078947A1 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8007225B2 (en) * | 2007-09-10 | 2011-08-30 | Chen-Hui Ko | Cross flow fan |
| CN108361209B (zh) * | 2018-02-26 | 2023-12-08 | 珠海格力电器股份有限公司 | 风道组件及空调器 |
| FR3115503B1 (fr) | 2020-10-22 | 2022-11-11 | Valeo Systemes Thermiques | Dispositif de ventilation pour module de refroidissement de véhicule automobile |
-
2022
- 2022-10-10 FR FR2210373A patent/FR3140656B1/fr active Active
-
2023
- 2023-10-04 CN CN202380071882.8A patent/CN120019209A/zh active Pending
- 2023-10-04 EP EP23783435.3A patent/EP4602273A1/fr active Pending
- 2023-10-04 WO PCT/EP2023/077490 patent/WO2024078947A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024078947A1 (fr) | 2024-04-18 |
| CN120019209A (zh) | 2025-05-16 |
| FR3140656B1 (fr) | 2024-10-25 |
| FR3140656A1 (fr) | 2024-04-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| 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 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20250410 |
|
| 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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VALEO ELECTRIFICATION |