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EP2381110B1 - Climatisation de véhicule automobile - Google Patents

Climatisation de véhicule automobile Download PDF

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Publication number
EP2381110B1
EP2381110B1 EP11162589.3A EP11162589A EP2381110B1 EP 2381110 B1 EP2381110 B1 EP 2381110B1 EP 11162589 A EP11162589 A EP 11162589A EP 2381110 B1 EP2381110 B1 EP 2381110B1
Authority
EP
European Patent Office
Prior art keywords
ring
conditioning system
vehicle air
shield
hub
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.)
Not-in-force
Application number
EP11162589.3A
Other languages
German (de)
English (en)
Other versions
EP2381110A2 (fr
EP2381110A3 (fr
Inventor
Matthias Lang
Karim-Mathieu Bouchalat
Dieter Sartorius
Michael Herrmann
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Mahle Behr GmbH and Co KG
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 DE102010028067A external-priority patent/DE102010028067A1/de
Application filed by Mahle Behr GmbH and Co KG filed Critical Mahle Behr GmbH and Co KG
Publication of EP2381110A2 publication Critical patent/EP2381110A2/fr
Publication of EP2381110A3 publication Critical patent/EP2381110A3/fr
Application granted granted Critical
Publication of EP2381110B1 publication Critical patent/EP2381110B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards

Definitions

  • the invention relates to an automotive air conditioning system according to the preamble of claim 1.
  • the motor vehicle air conditioner generally comprises a refrigerant evaporator for cooling the air and a heating device for heating the air.
  • a blower serves to circulate or convey the air through the motor vehicle air conditioning system. The air is sucked in from the environment of the motor vehicle or from the interior of the motor vehicle, then passed to the refrigerant evaporator and the heating device and subsequently supplied to the motor vehicle interior.
  • the fan is arranged within a fan housing and has an impeller, a drive shaft and an electric motor. By means of the electric motor, the impeller is driven, so that on the impeller trained blades on a hub can promote or circulate the air.
  • the object of the present invention is therefore to provide an automotive air conditioning system in which the electric motor is protected against water and moisture and a freezing of the impeller is substantially excluded.
  • an automotive air conditioning system comprising a housing, a fan with an impeller, a drive shaft and an electric motor, wherein the impeller has a hub and blades for circulating the air and the electric motor is arranged below the impeller, preferably a refrigerant evaporator for cooling an air to be supplied to a vehicle interior, a heater for heating the air to be supplied to the vehicle interior, the impeller being provided with a liquid-tight closed screen for shielding water from the electric motor.
  • the formation of the impeller, in particular the hub, above the electric motor as a liquid-tight closed screen causes that guided from above towards the electric motor water, especially in the form of steam, mist or water drops, does not reach the electric motor and the screen radially is derived to the outside.
  • the liquid-tight closed screen has no opening, so that in a direction from top to bottom of the screen is liquid-tight and thus no liquid can be passed through the screen.
  • the hub is formed as the liquid-tight closed screen and / or the impeller is formed in the axial direction of the drive shaft above the electric motor as the liquid-tight closed screen and / or the hub is at a projection portion of the electric motor to the hub parallel to an axis of the drive shaft is formed as a liquid-tight closed screen, and preferably the hub is additionally formed at a radial distance of less than 5 cm, 2 cm or 1 cm to the projection portion as the liquid-tight closed screen.
  • the impeller is formed radially outside of the electric motor as the liquid-tight closed screen.
  • the screen is formed as a disk or a dome.
  • the shield formed as a dome in the radial direction outwards on the upper side, in particular continuous, gradient.
  • the shield formed as a dome in the radial direction outwards on the underside, in particular continuous slope.
  • the screen has on one upper side a convex surface and / or on one lower side a concave surface.
  • the drive shaft is oriented substantially vertically.
  • a substantially vertical orientation of the drive shaft preferably means that the drive shaft is aligned with a deviation of less than 30 °, 20 °, 10 °, 5 ° or 2 ° to a vertical plane or vertical straight line.
  • the liquid-tight screen is formed at a radial end portion as a ring and the slope of the ring is upper side smaller than the slope of the screen within the ring on the upper side, in particular as the slope of the screen on the upper side within the ring at a radial distance of less than half the radius of the screen.
  • the ring thus also has a slight downward gradient on the upper side, so that water which flows out of the screen in the area inside the ring to the ring can also flow out radially on the ring to the outside.
  • the liquid-tight screen is formed at a radial end portion as a ring and the slope of the ring underside is smaller than the slope of the screen within the ring below, especially as the slope of the screen below the inside of the ring at a radial distance of less as half the radius of the screen.
  • the liquid-tight screen in particular the ring. and / or the blades are provided on the underside in a radial end region with an annular drip nose.
  • annular drip nose the water flowing from the top of the ring to the bottom of the ring dripping, so that this water drips down selectively at the drip tip below the impeller. This should allow a targeted and controlled discharge of the water.
  • the drive shaft is fastened to a fixing opening in the hub
  • the fixation opening is formed as a bore completely piercing the hub and the drive shaft with respect to the hub is sealed liquid-tight at the bore or the fixation opening is formed as a downwardly formed bore and above the fixation opening of the liquid-tight screen of the hub is continued and / or the impeller is integrally formed, in particular made of plastic.
  • the hub or the screen is thus formed liquid-tight in the region of the fixing opening with the drive shaft arranged therein.
  • the electric motor is fastened to the housing by means of a motor holder which encloses the electric motor at least partially, in particular completely, and / or the electric motor is an electrically commutated, brushless motor.
  • the motor holder in the radial direction outwards on the top and / or bottom side, in particular continuous slope on.
  • impinging water on the motor holder can be discharged radially outward, so that no water can reach the electric motor arranged radially inside the motor holder.
  • the gradient of the motor holder is formed in a ring portion below the liquid-tight screen and preferably additionally radially outside of the ring portion.
  • At least one annular step is formed in the ring portion and preferably outside the ring portion.
  • the refrigerant evaporator and the, preferably electrical, heating device are arranged within the housing of the motor vehicle air conditioning system.
  • the motor vehicle air conditioning system has at least one channel for passing air through.
  • the motor vehicle air conditioning system expediently comprises at least one air filter.
  • the refrigerant evaporator and / or the, preferably electrical, heating device and / or the at least one air filter are arranged within the at least one channel.
  • the at least one air filter in the flow direction of the air upstream of the fan is arranged as a suction-side air filter and / or in the flow direction of the air downstream of the fan as a pressure-side air filter.
  • the motor vehicle air conditioning system has at least one air guiding device, eg, at least one air flap and / or at least one screen and / or at least one conveyor belt, by means of which or to which the air quantity controllable by the at least one channel can be controlled.
  • at least one air guiding device eg, at least one air flap and / or at least one screen and / or at least one conveyor belt, by means of which or to which the air quantity controllable by the at least one channel can be controlled.
  • the housing of the motor vehicle air conditioning at least partially made of plastic.
  • the at least one channel for the passage of air from a wall of the housing is limited.
  • An automotive air conditioning system with a housing 2 is used for cooling and / or heating of an interior of a motor vehicle, not shown, air to be supplied.
  • a refrigerant evaporator for cooling the air to be supplied to the vehicle interior, and a heater for heating the air to be supplied to the vehicle interior are arranged.
  • the refrigerant evaporator and the heater are arranged within a trapped or bounded by the housing 2 channel.
  • the blower 3 has a blower housing 4 as part of the housing 2 of the motor vehicle air conditioner on.
  • the blower housing 4 limits a flow space 24 and has an intake opening 23 for sucking in air.
  • an impeller 5, a drive shaft 6 and an electric motor 7 is arranged within the blower housing 4, within the blower housing 4, an impeller 5, a drive shaft 6 and an electric motor 7 is arranged.
  • the impeller 5 is mechanically connected to the electric motor 7, so that thereby the impeller 6 performs a rotational movement with a rotation axis as an axis 1 of the drive shaft 6 of the electric motor 7.
  • the impeller 5 has a hub 8 with blades 9 arranged thereon ( Fig. 1 to 3 ).
  • At the hub 8 is formed centrally as a bore 17 formed fixing opening 16.
  • the bore 17 has any cross-section, for example, it is circular, square or triangular, in the bore 17, the drive shaft 6 is fixed ( Fig. 1 ).
  • the hub 8 of the impeller 5 is formed as a screen 10 in the form of a dome 11.
  • An upper side 12 and an underside 13 of the screen 10 has a gradient in the radial direction outward away from the axis 1.
  • water impinging on the upper side 12 of the screen 10 or the hub 8 is conducted radially outwards to form a ring 14 at a radial end section of the screen 10.
  • the blades 9 pierce the ring 14 slightly, so that even below the ring 14, a small portion of the blades 9 is present, which form a cooling trough 26 ( Fig. 1 to 3 ).
  • the cooling flow 26 serves to circulate the air between the screen 10 and the electric motor 7 for cooling the electric motor 7.
  • a completely circumferential stabilizing ring 18 is provided to fix or stabilize also at the upper end of the blades 9 to allow the blades 9.
  • the upper stabilizing ring 18 is in the view from below in Fig. 2 not shown.
  • a projection section 25 of the electric motor 7 is formed on the hub 8. This projection is in Fig. 1 shown with two dashed lines from the electric motor 7 to the hub 8.
  • the electric motor 7 is fixed by means of a ring-like motor holder 19 made of plastic and a tongue and groove connection 22 as a releasable connection means to the fan housing 4.
  • the motor holder 19 has a gradient in a radial direction with increasing distance from the electric motor 7.
  • an annular step 21 is formed on the motor holder 19.
  • An upper side 20 of the motor holder 19 thus has a gradient from the electric motor 7 to the tongue and groove connection 22.
  • the sucked air is sucked at the suction port 23 substantially in a direction parallel to the axis 1 of the drive shaft 6 down and then conveyed radially outwardly of the blades 9 relative to the axis 1 in the flow space 24.
  • In the air sucked through the suction port 23 may be water, for example in the form of vapor, mist or water droplets contained.
  • the lower end of the blades 9 or the cooling trough 26 can likewise have the same geometry as the drip nose 15 (not shown) or the lower end of the blades 9 or the cooling trough 26 has a triangular shape (in FIG Fig. 1 shown in dashed lines) and thus also forms a triangular drip 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (14)

  1. Système de climatisation d'un véhicule automobile, comprenant
    - un carter (2),
    - une soufflante (3) comprenant un rotor (5), un arbre d'entraînement (6) et un moteur électrique (7), où le rotor (5) présente un moyeu (8) et des ailettes (9) servant à la circulation de l'air, et le moteur électrique (7) est disposé au-dessous du rotor (5),
    - un évaporateur de fluide frigorigène servant au refroidissement d'un air à fournir à un habitacle du véhicule,
    - un dispositif de chauffage servant au chauffage de l'air à fournir à l'habitacle du véhicule, caractérisé
    en ce que le rotor (5) est doté d'un blindage fermé (10) étanche aux liquides et servant à la protection du moteur électrique (7) contre l'eau,
    où le moyeu (8) est conçu comme le blindage fermé (10) étanche aux liquides, et le moyeu (8) est configuré, sur une partie de projection (25) du moteur électrique (7) sur le moyeu (8), ladite partie de projection étant parallèle à un axe (1) de l'arbre d'entraînement (6), comme étant le blindage fermé (10) étanche aux liquides, et le moyeu (8) est configuré en outre, dans un intervalle radial inférieur à 5 cm, à 2 cm ou à 1 cm par rapport à la partie de projection (25), comme étant le blindage fermé (10) étanche aux liquides.
  2. Système de climatisation d'un véhicule automobile selon la revendication 1, caractérisé en ce que le blindage (10) est conçu comme un disque ou un dôme (11).
  3. Système de climatisation d'un véhicule automobile selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le blindage (10) configuré comme un dôme (11) présente sur la partie supérieure, vers l'extérieur dans le sens radial, une pente en particulier constante.
  4. Système de climatisation d'un véhicule automobile selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le blindage (10) configuré comme un dôme (11) présente sur la partie inférieure, vers l'extérieur dans le sens radial, une pente en particulier constante.
  5. Système de climatisation d'un véhicule automobile selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que l'arbre d'entraînement (6) est aligné pratiquement de manière verticale.
  6. Système de climatisation d'un véhicule automobile selon la revendication 4 ou 5, caractérisé en ce que le blindage (10) étanche aux liquides est configuré, sur une partie d'extrémité radiale, comme un anneau (14), et la pente de l'anneau (14), sur sa partie supérieure, est inférieure à la pente du blindage (10) à l'intérieur de l'anneau (14) sur sa partie supérieure.
  7. Système de climatisation d'un véhicule automobile selon l'une quelconque ou plusieurs des revendications 4 à 6, caractérisé en ce que le blindage (10) étanche aux liquides est configuré, sur une partie d'extrémité radiale, comme un anneau (14), et la pente de l'anneau (14), sur sa partie inférieure, est inférieure à la pente du blindage (10) à l'intérieur de l'anneau (14) sur sa partie inférieure.
  8. Système de climatisation d'un véhicule automobile selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le blindage (10) étanche aux liquides, en particulier l'anneau (14), est doté, dans une zone d'extrémité radiale située sur sa partie inférieure, d'un bec d'écoulement (15) de forme annulaire.
  9. Système de climatisation d'un véhicule automobile selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que l'arbre d'entraînement (6) est fixé sur une ouverture de fixation (16) située dans le moyeu (8).
  10. Système de climatisation d'un véhicule automobile selon la revendication 9, caractérisé en ce que l'ouverture de fixation (16) est configurée comme un perçage traversant complètement le moyeu (8), et l'arbre d'entraînement (6) est rendu étanche aux liquides, par rapport au moyeu (8) placé sur le perçage, ou bien l'ouverture de fixation (16) est configurée comme un perçage formé seulement vers le bas et, au-dessus de l'ouverture de fixation (16), le blindage (10) - étanche aux liquides - du moyeu (8) se continue et / ou le rotor (5) est conçu de manière monobloc, étant en particulier en matière plastique.
  11. Système de climatisation d'un véhicule automobile selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le moteur électrique (7) est fixé sur le carter (2), au moyen d'un support de fixation moteur (19) entourant le moteur électrique (7) au moins en partie, en particulier en totalité, et / ou le moteur électrique (7) est un moteur électrique BLDC.
  12. Système de climatisation d'un véhicule automobile selon la revendication 11, caractérisé en ce que le support de fixation moteur (19) présente sur sa partie supérieure et / ou sur sa partie inférieure, vers l'extérieur dans le sens radial, une pente en particulier constante.
  13. Système de climatisation d'un véhicule automobile selon la revendication 12, caractérisé en ce que la pente du support de fixation moteur (19) est configurée dans une partie annulaire située au-dessous du blindage étanche aux liquides et, en outre, de préférence à l'extérieur de la partie annulaire dans le sens radial.
  14. Système de climatisation d'un véhicule automobile selon la revendication 12 ou 13, caractérisé en ce qu'au moins un étage de forme annulaire (21) est configuré dans la partie annulaire et, de préférence, à l'extérieur de la partie annulaire.
EP11162589.3A 2010-04-22 2011-04-15 Climatisation de véhicule automobile Not-in-force EP2381110B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010028067A DE102010028067A1 (de) 2010-04-22 2010-04-22 Kraftfahrzeugklimaanlage
DE102010020731 2010-05-17

Publications (3)

Publication Number Publication Date
EP2381110A2 EP2381110A2 (fr) 2011-10-26
EP2381110A3 EP2381110A3 (fr) 2013-01-23
EP2381110B1 true EP2381110B1 (fr) 2018-03-28

Family

ID=44201958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11162589.3A Not-in-force EP2381110B1 (fr) 2010-04-22 2011-04-15 Climatisation de véhicule automobile

Country Status (1)

Country Link
EP (1) EP2381110B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6441402B2 (ja) * 2017-03-30 2018-12-19 株式会社ケーヒン 遠心式送風機
JP7036644B2 (ja) * 2018-03-27 2022-03-15 株式会社日本クライメイトシステムズ 車両空調用送風装置
CN114285207A (zh) * 2021-12-31 2022-04-05 珠海格力电器股份有限公司 一种电机保护结构和出风装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5449153A (en) * 1993-12-13 1995-09-12 Cadillac Rubber & Plastics, Inc. Isolation mounting plate for blower motor
US5786647A (en) * 1993-03-04 1998-07-28 Robert Bosch Gmbh Device for incorporating a motor
DE19802111A1 (de) * 1997-01-31 1998-08-06 Denso Corp Zentrifugalgebläse mit einer Vielzahl von Nebenschaufeln
US5813831A (en) * 1996-03-11 1998-09-29 Denso Corporation Centrifugal blower having a bell-mouth ring for reducing noise
US20060285967A1 (en) * 2005-06-17 2006-12-21 Halla Climate Control Corporation Blower for air conditioner of automotive vehicles

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2801941B1 (fr) 1999-12-06 2002-02-08 Valeo Climatisation Installation de chauffage-climatisation comprenant au moins un pulseur centrifuge
JP4491909B2 (ja) * 2000-04-28 2010-06-30 株式会社デンソー 遠心式送風機
JP3790719B2 (ja) * 2002-05-15 2006-06-28 株式会社ケーヒン 遠心式送風機
JP5000851B2 (ja) * 2005-02-16 2012-08-15 プライムアースＥｖエナジー株式会社 ファン構造及び電池パック
TWI280322B (en) * 2005-12-23 2007-05-01 Delta Electronics Inc Fan and motor thereof
JP4867847B2 (ja) * 2007-08-10 2012-02-01 株式会社デンソー 電動ファン装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5786647A (en) * 1993-03-04 1998-07-28 Robert Bosch Gmbh Device for incorporating a motor
US5449153A (en) * 1993-12-13 1995-09-12 Cadillac Rubber & Plastics, Inc. Isolation mounting plate for blower motor
US5813831A (en) * 1996-03-11 1998-09-29 Denso Corporation Centrifugal blower having a bell-mouth ring for reducing noise
DE19802111A1 (de) * 1997-01-31 1998-08-06 Denso Corp Zentrifugalgebläse mit einer Vielzahl von Nebenschaufeln
US20060285967A1 (en) * 2005-06-17 2006-12-21 Halla Climate Control Corporation Blower for air conditioner of automotive vehicles

Also Published As

Publication number Publication date
EP2381110A2 (fr) 2011-10-26
EP2381110A3 (fr) 2013-01-23

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