DE102008048911A1 - Air-conditioning unit for motor vehicle, has housing, evaporator and outlet path for condenser, which condenses in evaporator, where outlet path has collecting section and removing section - Google Patents

Air-conditioning unit for motor vehicle, has housing, evaporator and outlet path for condenser, which condenses in evaporator, where outlet path has collecting section and removing section

Info

Publication number
DE102008048911A1
DE102008048911A1 DE102008048911A DE102008048911A DE102008048911A1 DE 102008048911 A1 DE102008048911 A1 DE 102008048911A1 DE 102008048911 A DE102008048911 A DE 102008048911A DE 102008048911 A DE102008048911 A DE 102008048911A DE 102008048911 A1 DE102008048911 A1 DE 102008048911A1
Authority
DE
Germany
Prior art keywords
conditioning unit
characterized
air conditioning
unit according
section
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
Application number
DE102008048911A
Other languages
German (de)
Inventor
Stefan Gärtner
Bodo Gesell
Christophe Petit
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.)
Valeo Klimasysteme GmbH
Original Assignee
Valeo Klimasysteme GmbH
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 Valeo Klimasysteme GmbH filed Critical Valeo Klimasysteme GmbH
Priority to DE102008048911A priority Critical patent/DE102008048911A1/en
Priority claimed from ES09170439T external-priority patent/ES2400038T3/en
Publication of DE102008048911A1 publication Critical patent/DE102008048911A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00514Details of air conditioning housings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H1/3233Cooling devices characterised by condensed liquid drainage means

Abstract

The air-conditioning unit (10) has a housing (12), an evaporator and an outlet path for a condenser, which condenses in evaporator. The outlet path has a collecting section and a removing section. The collecting section is an opened collecting tank with a diagonally running base. The collecting tank is bounded at a side of the collecting wall.

Description

  • The The invention relates to an air conditioning unit for a Motor vehicle, with a housing, at least one evaporator and an outlet path for condensate, located on the evaporator reflected.
  • Of the Evaporator may be the air passed through the air conditioning unit cool, around the vehicle interior cooled air supply. When the air flows through the condenser, Part of the air humidity contained in the air can condense, so that directly at the evaporator or at others, downstream evaporator components precipitate condensate. This condensate must be removed from the air conditioning unit, to prevent it from flowing through the air conditioning unit Air is entrained and enters the vehicle interior.
  • Various measures are known from the prior art, with which the condensate is to be removed. From the DE 44 10 120 A1 is known to provide a baffle plate downstream of the evaporator, at which the condensate is to precipitate. The baffle plate is followed by a channel which leads to an outlet in the housing of the air conditioning unit.
  • From the WO 2006/039549 A1 An air conditioning unit is known, in which downstream of the evaporator, a baffle plate is arranged, which on the one hand to influence the air flow and on the other hand to capture part of the condensate. Below the baffle an outlet opening is provided, through which the collected condensate is discharged from the housing.
  • The The object of the invention is an air conditioning unit for a motor vehicle to create the condensate in a particularly reliable manner under all operating conditions can be dissipated.
  • to Solution to this problem is inventively at provided an air conditioning unit of the type mentioned, that the Auslassweg from a collecting section and a Abfuhrabschnitt consists. The invention is based on the basic idea, the Auslassweg for the condensate to divide into two sections, the be optimally adapted to the respective ambient conditions can. These environmental conditions include in particular the flow velocity of the air in the area of the corresponding Section of the Auslassweges and the available Room.
  • Preferably it is envisaged that the collection section will be an open sump is. An open reservoir offers itself in particular, because immediately downstream of the evaporator usually one low flow rate prevails. It exists therefore no risk of the condensate being entrained in the air becomes. At the same time in an open reservoir the condensate be captured with very little effort.
  • Preferably the reservoir has a sloping bottom on. This ensures that the condensate is at its deepest Accumulates the point or the lowest points of the collecting basin.
  • According to one preferred embodiment, it is provided that the ground of Sammelbeckens in the x-direction of the vehicle to Abfuhrabschnitt out drops. This allows the condensate, in the x-direction of the vehicle, behind the evaporator from the housing dissipate.
  • Preferably It is envisaged that the sump on one side of a collection wall is limited. The collecting wall serves in the manner of a dam, to keep the condensate in the sump and at a certain level To earn a point.
  • According to one Embodiment is provided that the Abfuhrabschnitt a discharge channel that begins in the reservoir and is under the collecting wall extends to an outlet. This embodiment can be realized with little design effort.
  • According to one alternative embodiment it is provided that the collecting wall at least has a passage leading to the discharge section. In this embodiment, the transition from the reservoir To Abfuhrabschnitt particularly variable to different requirements be adjusted.
  • Preferably it is provided that the Abfuhrabschnitt formed as a discharge channel is, which extends from the passage to an outlet. The discharge channel serves as a connection between the sump and the outlet, so that the outlet is very flexible at the desired location the housing of the air conditioning unit can be arranged.
  • According to one embodiment, it is provided that the collecting wall has two passages, which are arranged in the y-direction of the vehicle measured at approximately 25% and 75% of the width of the collecting section. This embodiment is compared to an embodiment with only a single passage there through out that the reservoir has a lower height.
  • Preferably is then provided that the Abfuhrabschnitt formed as a discharge channel that is with two merging branches from the passages extends to an outlet. This ensures that despite the two passages only a single outlet the housing of the air conditioning unit is necessary.
  • According to one Another embodiment provides that the collecting wall has three passages in the y-direction of the vehicle measured at approximately 17%, 50% and 83% of the width of the collection section are arranged. This embodiment is characterized from that even lower height of the collecting wall and thus of the Sammelbeckens is necessary. However, the design effort higher for three culverts.
  • Preferably is provided that the Abfuhrabschnitt formed as a discharge channel is, with three merging branches from the passages extends to an outlet. This variant also allows to get along with only a single outlet from the housing.
  • Preferably is provided that the bottom of the collecting basin in the y-direction of the Vehicle falls to the passage or to the discharge channel out. This ensures that the condensate, even if the vehicle is at an angle, drain towards the outlet and can not accumulate in the housing.
  • Preferably is further provided that the collecting wall, in the x direction of the Considered vehicle, in the region of the passage or the passages farthest back. This design supports, that the condensate reliably towards the Abfuhrabschnitt out even if the vehicle is not horizontal.
  • According to one Embodiment is provided that the collecting wall by vertical ribs is formed. This embodiment draws characterized by a low design effort.
  • According to one Another embodiment provides that the collecting wall is formed by an obliquely employed plate. On This way you can have a higher capacity of the collection section. It also prevents that condensate spills over the collecting wall.
  • According to one Embodiment of the invention is provided that the Abfuhrkanal has a closed cross-section. This is special advantageous if the discharge channel is in an area of Air conditioning unit is located in which in operation high flow rates the air can occur. When the discharge channel is closed is formed, can also at high flow rates no condensate is entrained in the air. At the same time decreases closed cross-section of the discharge channel the risk that at extreme vehicle inclinations, such as in a SUV may occur, condensate exiting the discharge channel and then taken from the air.
  • Preferably is provided that the closed cross-section of the discharge channel is obtained by the cover being removable. This makes possible, provide the cover only if it is due to the conditions of use of the vehicle is necessary, for example in a SUV or an SUV.
  • According to one Another embodiment provides that the discharge channel is narrowed towards the top. This embodiment is based on the knowledge that in a variety of applications it is not necessary is to completely close the discharge channel, but it may be sufficient, an upwardly narrowed cross-section to use.
  • Preferably is provided that the discharge channel in the region of a parting plane formed between two halves of the housing. In this embodiment, no additional measures required, in particular no additional components, to form the discharge channel. It is sufficient, the two housing halves suitable in the area of their parting plane.
  • The Invention will be described below with reference to two embodiments described in the accompanying drawings are. In these show:
  • 1 in a perspective view of an air conditioning unit according to a first embodiment;
  • 2 in a partially sectioned view of the housing of the air conditioning unit of 1 ;
  • 3 a section along the plane III-III of 5 ;
  • 4 a section along the plane IV-IV of 3 ;
  • 5 a section along the plane VV of 3 ;
  • 6 on an enlarged scale off cut from 2 ;
  • 7 the in 6 shown area of the air conditioning unit, wherein the cover of the discharge channel is removed;
  • 8th in a schematic, perspective sectional view of an air conditioning unit according to a second embodiment;
  • 9 in a schematic perspective view of the air conditioning unit of 8th ; and
  • 10 on a larger scale a section of 9 ,
  • In 1 is an air conditioning unit 10 shown a housing 12 has, in which various components are arranged. These are described below only insofar as they are necessary for the understanding of the invention. Inside the case 12 is in particular an evaporator 14 (please refer 4 ), in which a refrigerant can be evaporated. The heat required for evaporation is removed from an air stream which is passed through the evaporator. The removal of the heat leads to a reduction in the temperature of the air, whereby a part of the moisture contained in the air stream is deposited as condensate on the evaporator or also arranged downstream of the evaporator components. For discharging the condensate from the housing, an exhaust path is provided, which will be described in detail below.
  • The exhaust path is composed of a collection section 16 and a disposal section 18 (see in particular the 5 and 6 ). The collection section 16 is as an open reservoir 20 Running away from the evaporator 14 up to a collection wall 22 extends. The collection wall 22 is formed by a rib or several raised ribs. The bottom of the collecting basin 20 is inclined on the one hand in the x-direction of the vehicle. This is based on a conventional coordinate system in a motor vehicle, in which the x-axis coincides with the longitudinal axis of the vehicle, while the y-axis and the z-axis coincide with the vehicle transverse axis or the vehicle vertical axis. It is clear to see that the reservoir 20 a floor 24 that is from the evaporator 14 away back and down drops.
  • The reservoir 20 points in the area of the collecting wall 22 two passages 30 on (see also the 4 and 5 ), which is the transition from the collection section 16 to the discharge section 18 represent. At the passages 30 begins the discharge channel 32 which has a closed cross-section, as it has a cover 34 is provided. The cover 34 is removable (see the 6 and 7 ). The discharge channel 32 points here, in the collection wall 22 two passages 30 are provided, two branches on, which are at the collection wall 22 unite distant end together and to an outlet 36 in the case 12 lead, through which the condensate can be discharged to the outside. As in 5 can be seen, the discharge channel falls 32 from the collection wall 22 to the outlet 36 down to the outlet 36 towards a step 38 is provided.
  • The use of two passages has the advantage that the height of the collecting basin is lower compared with a single pass culvert. At a single, central outlet, the floor rises 24 of the collecting basin to the right and to the left over half of the width of the collecting basin towards the top. This results in a comparatively large height difference between the level of the soil on the outside of the collecting basin and the level of the soil in the region of the passage. On the other hand, if two passages are used, the floor to the right and left of the passage rises only over a quarter of the width of the collecting basin. The level difference between the highest and the lowest point of the floor in the area of the collecting wall 22 is therefore reduced to half.
  • In more complex embodiments, three or more passages can be used. This will be the level difference between the highest and the lowest point of the soil 24 of the collecting basin 20 in the area of the collecting wall 22 further reduced.
  • As in particular in the 4 and 5 you can see, is the ground 24 of the collecting basin 20 tilted not only in the x-direction of the vehicle, but also in the y-direction. This is in the 4 and 5 through the course of the cutting edge between the ground 24 and the collection wall 22 see forming rib. The floor 24 falls to every passage 30 down, so it is running multiple inclined. Furthermore, the collection wall 22 not just running through, but in the area of each passage 30 pulled furthest backwards as she juts forward between passages. In this way it is ensured that with every inclination of the vehicle, which can occur in the normal operation, the lowest point of the collecting basin 20 in the area of one of the passages 30 lies. The slope of the ground 24 of the collecting basin 20 is on the order of 17 ° for "normal" passenger cars and 27 ° for SUVs and SUVs. This applies both to the inclination in the x direction and the inclination in the y direction.
  • According to one deviating embodiment, the soil can only in be inclined in the y-direction. In general, the architecture is designed that is always an inclination of the soil to Abfuhrabschnitt out results.
  • The division of the outlet path for the condensate in a collecting section 16 and a disposal section 18 uses the inside of the case 12 the air conditioning unit present conditions optimally. Downstream of the evaporator 14 There is a comparatively low flow velocity of the air, so that the condensate in the open reservoir 20 can be absorbed, which can be realized with little effort. On the other hand, significantly higher flow velocities downstream of the collecting basin are present, since in this area, due to a heat exchanger 14 a much more limited flow path is available for the air. In this area is the discharge channel 32 however, covered, so that there is no risk that condensate can be entrained by the air and get to an air vent in the vehicle interior.
  • The cover 34 may be omitted, if due to the operating conditions is not expected that condensate from the discharge channel 32 being carried away. For example, the cover 34 only be mounted on SUVs and SUVs.
  • Instead of the passages 30 directly in the area of the collecting wall 22 can also be provided that the collecting wall itself is provided with passages, for example by the collecting wall is formed by a plurality of upstanding ribs, between which then the passages are formed for the condensate.
  • In the 8th to 10 a second embodiment is shown. This differs both by guiding the collecting wall 22 that separates the sump from the outlet channel, as well as the design of the outlet channel.
  • The collection wall 22 is formed in the second embodiment as obliquely employed plate, which at the upstream end directly to the evaporator 14 connects and from there diagonally down to the ground 24 of the collecting basin 20 runs. As a result, the bulk of the collecting basin is below the collecting wall 22 educated.
  • The discharge channel 32 is here designed in the manner of a recessed gutter, already below the evaporator 14 starts, through the reservoir 20 runs and then below the collection wall 22 from the reservoir 20 out in the direction of the outlet opening (not shown). The discharge channel 32 is between two halves 12a . 12b formed of the housing, ie in the region of the mold parting plane, so that it automatically arises when mating the housing halves. Below the evaporator 14 and in the area of the collecting basin 20 has the discharge channel 32 a wide cross-sectional shape, while the discharge channel 32 outside the collection wall 22 is made narrowed at the top, but without being completely closed. The narrowed cross-sectional shape ensures that even at a higher velocity of the air flow no condensate from the discharge channel 32 being carried away.
  • Regarding the slope of the soil 24 in the area of the collecting basin 20 Reference is made to the above explanations of the first embodiment.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
  • Cited patent literature
    • - DE 4410120 A1 [0003]
    • WO 2006/039549 A1 [0004]

Claims (23)

  1. Air conditioning unit ( 10 ) for a motor vehicle, with a housing ( 12 ), at least one evaporator ( 14 ) and an outlet path for condensate, which precipitates on the evaporator, characterized in that the outlet path from a collecting section ( 16 ) and a disposal section ( 18 ) consists.
  2. Air conditioning unit according to claim 1, characterized in that the collecting section ( 16 ) an open reservoir ( 20 ).
  3. Air conditioning unit according to claim 2, characterized in that the reservoir ( 20 ) a sloping floor ( 24 ) having.
  4. Air-conditioning unit according to claim 3, characterized in that the floor ( 24 ) of the collecting basin ( 20 ) to the disposal section ( 18 ) decreases.
  5. Air conditioning unit according to claim 4, characterized that the ground in the x-direction and / or the y-direction of the vehicle drops to the Abfuhrabschnitt.
  6. Air conditioning unit according to one of claims 2 to 5, characterized in that the collecting tank ( 20 ) on one side of a collecting wall ( 22 ) is limited.
  7. Air conditioning unit according to one of claims 2 to 6, characterized in that the discharge section ( 18 ) at least one discharge channel ( 32 ) in the reservoir ( 20 ) and under the collecting wall ( 22 ) through to an outlet ( 36 ).
  8. Air conditioning unit according to one of claims 2 to 6, characterized in that the collecting wall ( 22 ) at least one passage ( 30 ) leading to the disposal section ( 18 ) leads.
  9. Air conditioning unit according to claim 8, characterized in that the discharge section ( 18 ) as a discharge channel ( 32 ) formed by the passage ( 30 ) to an outlet ( 36 ).
  10. Air conditioning unit according to one of claims 2 to 6, characterized in that the collecting wall ( 22 ) two passages ( 30 ) measured in the y-direction of the vehicle at approximately 25% and 75% of the width of the collection section (FIG. 16 ) are arranged.
  11. Air conditioning unit according to claim 10, characterized in that the discharge section ( 18 ) as a discharge channel ( 32 ) formed with two merging branches from the passages ( 30 ) to an outlet ( 36 ).
  12. Air conditioning unit according to one of claims 2 to 6, characterized in that the collecting wall ( 22 ) three passages ( 30 measured in the y-direction of the vehicle at approximately 17%, 50% and 83% of the width of the collection section (FIG. 16 ) are arranged.
  13. Air conditioning unit according to claim 12, characterized in that the discharge section ( 18 ) as a discharge channel ( 32 ) formed with three unifying branches from the passages ( 30 ) to an outlet ( 36 ).
  14. Air-conditioning unit according to one of claims 7 to 13, characterized in that the floor ( 24 ) of the collecting basin ( 20 ) in the y-direction of the vehicle to the passage ( 30 ) decreases.
  15. Air conditioning unit according to one of claims 8 to 14, characterized in that the collecting wall ( 22 ), viewed in the x direction of the vehicle, in the region of the passage ( 30 ) or the passages ( 30 ) is furthest to the rear.
  16. Air conditioning unit according to one of claims 6 to 15, characterized in that the collecting wall ( 22 ) is formed by vertical ribs.
  17. Air conditioning unit according to one of claims 6 to 15, characterized in that the collecting wall ( 22 ) is formed by an obliquely employed plate.
  18. Air conditioning unit according to one of claims 7 to 17, characterized in that the discharge channel ( 32 ) has a closed cross-section.
  19. Air conditioning unit according to claim 18, characterized in that the discharge channel ( 32 ) a removable cover ( 34 ) having.
  20. Air conditioning unit according to claim 19, characterized in that the cover ( 34 ) is provided with at least one upstanding tab extending between ribs of the collecting wall ( 22 ).
  21. Air conditioning unit according to one of claims 19 and 20, characterized in that a seal on the cover ( 34 ) and / or the wall of the discharge channel ( 32 ) is provided to the discharge channel ( 32 ) seal.
  22. Air conditioning unit according to one of claims 7 to 17, characterized in that the Discharge channel ( 32 ) is narrowed towards the top.
  23. Air conditioning unit according to one of claims 7 to 22, characterized in that the discharge channel ( 32 ) is formed in the region of a parting plane between two halves of the housing.
DE102008048911A 2008-09-26 2008-09-26 Air-conditioning unit for motor vehicle, has housing, evaporator and outlet path for condenser, which condenses in evaporator, where outlet path has collecting section and removing section Pending DE102008048911A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102008048911A DE102008048911A1 (en) 2008-09-26 2008-09-26 Air-conditioning unit for motor vehicle, has housing, evaporator and outlet path for condenser, which condenses in evaporator, where outlet path has collecting section and removing section

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE102008048911A DE102008048911A1 (en) 2008-09-26 2008-09-26 Air-conditioning unit for motor vehicle, has housing, evaporator and outlet path for condenser, which condenses in evaporator, where outlet path has collecting section and removing section
ES09170439T ES2400038T3 (en) 2008-09-26 2009-09-16 Air conditioning system for a car
EP09170439A EP2168796B1 (en) 2008-09-26 2009-09-16 Air conditioning system for a car
SI200930520T SI2168796T1 (en) 2008-09-26 2009-09-16 Air conditioning system for a car
EP12007561.9A EP2602136B1 (en) 2008-09-26 2009-09-16 Air conditioning system for a car
MX2009010332A MX2009010332A (en) 2008-09-26 2009-09-25 Air conditioning system for a car.
CN200910253070.7A CN101737931B (en) 2008-09-26 2009-09-27 Automobile air conditioning system

Publications (1)

Publication Number Publication Date
DE102008048911A1 true DE102008048911A1 (en) 2010-04-01

Family

ID=41719760

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102008048911A Pending DE102008048911A1 (en) 2008-09-26 2008-09-26 Air-conditioning unit for motor vehicle, has housing, evaporator and outlet path for condenser, which condenses in evaporator, where outlet path has collecting section and removing section

Country Status (1)

Country Link
DE (1) DE102008048911A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010029773A1 (en) * 2010-06-08 2011-12-08 Behr Gmbh & Co. Kg Air conditioning device for vehicle, has seal formed in lower area of housing halves of housing unit by mutual weld, and conduit-type sewer provided in region of above seal, where housing halves lay in region of respective parting lines
DE102014112535A1 (en) * 2014-09-01 2016-03-03 Denso Automotive Deutschland Gmbh Automotive air conditioning system with detachably connected filter cover

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4410120A1 (en) 1993-05-27 1994-12-01 Behr Gmbh & Co Air conditioning for a motor vehicle
WO2006039549A1 (en) 2004-09-30 2006-04-13 Valeo Climate Control Corp. Hvac with detached deflector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4410120A1 (en) 1993-05-27 1994-12-01 Behr Gmbh & Co Air conditioning for a motor vehicle
WO2006039549A1 (en) 2004-09-30 2006-04-13 Valeo Climate Control Corp. Hvac with detached deflector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010029773A1 (en) * 2010-06-08 2011-12-08 Behr Gmbh & Co. Kg Air conditioning device for vehicle, has seal formed in lower area of housing halves of housing unit by mutual weld, and conduit-type sewer provided in region of above seal, where housing halves lay in region of respective parting lines
DE102014112535A1 (en) * 2014-09-01 2016-03-03 Denso Automotive Deutschland Gmbh Automotive air conditioning system with detachably connected filter cover

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