WO2021228425A1 - Système de climatisation - Google Patents

Système de climatisation Download PDF

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Publication number
WO2021228425A1
WO2021228425A1 PCT/EP2021/000035 EP2021000035W WO2021228425A1 WO 2021228425 A1 WO2021228425 A1 WO 2021228425A1 EP 2021000035 W EP2021000035 W EP 2021000035W WO 2021228425 A1 WO2021228425 A1 WO 2021228425A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
heat exchanger
conditioning system
housing
condenser
Prior art date
Application number
PCT/EP2021/000035
Other languages
German (de)
English (en)
Inventor
Eugen Presler
Johannes Laging
Original Assignee
Truma Gerätetechnik GmbH & 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
Application filed by Truma Gerätetechnik GmbH & Co. KG filed Critical Truma Gerätetechnik GmbH & Co. KG
Publication of WO2021228425A1 publication Critical patent/WO2021228425A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00364—Air-conditioning arrangements specially adapted for particular vehicles for caravans or trailers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00514—Details of air conditioning housings
    • B60H1/00521—Mounting or fastening of components in housings, e.g. heat exchangers, fans, electronic regulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H2001/00078—Assembling, manufacturing or layout details
    • B60H2001/00092—Assembling, manufacturing or layout details of air deflecting or air directing means inside the device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00207—Combined heating, ventilating, or cooling devices characterised by the position of the HVAC devices with respect to the passenger compartment
    • B60H2001/00235—Devices in the roof area of the passenger compartment

Definitions

  • the present invention relates to an air conditioner for cooling a room. It is preferably an air conditioning system that is to be attached to the roof of a vehicle (e.g. a mobile home or a caravan).
  • a vehicle e.g. a mobile home or a caravan.
  • Air conditioning systems in general for motor vehicles can be found in DE 10 2009 028 522 B4, DE 10 2011 080 491 A1, US 2016/0161154 A1 or US 2017/0190236 A1.
  • An air conditioning system for a truck for example, is shown in DE 10 2008 005 539 A1.
  • EP 2 527 173 A1, US Pat. No. 4,641, 502 and US Pat. No. 4,672,818 each describe roof air conditioning units for a caravan or a motor home.
  • An air conditioning system for rail vehicles is disclosed in WO 2013/037335 A1.
  • An air conditioning system for electronic devices is shown in US Pat. No. 7,478,541 B2.
  • the object on which the invention is based is therefore to propose an air conditioning system with properties that are improved compared to the prior art.
  • the invention solves the problem by an air conditioning system for cooling air, the air conditioning system having a condenser heat exchanger, a condenser fan and a housing, the condenser heat exchanger transferring thermal energy of the air to be cooled to outside air, the Housing has at least one air inlet and an air outlet for the outside air, the condenser fan introducing the outside air into the housing via the air inlet and via the air outlet
  • CONFIRMATION COPY discharges, and wherein the at least one air inlet and the at least one air outlet are located at different levels of a height of the air conditioning system, the level of the air inlet is above the level of the air outlet, the condenser heat exchanger has the shape of the capital letter "U", wherein the condenser fan is arranged in the U-shape with pockets between the housing and the condenser heat exchanger, and the pockets directing outside air towards the bottom of the U-shape of the condenser heat exchanger.
  • the thermal energy of the air to be cooled is first transferred to the coolant and then to the outside air.
  • the outside air comes from z. B. from the environment around the room whose air is to be cooled by the air conditioning.
  • the air conditioning is, for example, a so-called roof air conditioner, which z. B. is mounted on the roof of a caravan or a mobile home, the air in the interior of the caravan or mobile home is cooled and the heat as thermal energy is transferred to the ambient air around the caravan or mobile home.
  • the condenser heat exchanger and the condenser fan are provided for this energy transfer.
  • the condenser heat exchanger guides the coolant and allows it to interact with the outside air by passing the outside air through the condenser heat exchanger and absorbing heat from the coolant.
  • the condenser fan ensures the movement of the outside air into the housing of the air conditioning system and after interaction with the condenser heat exchanger for the movement back out of the housing.
  • the at least one air inlet and the at least one air outlet are located on different levels along a height of the air conditioning system, which is therefore also a height of the housing.
  • the level of the air inlet is above the air outlet.
  • the outside air is thus drawn in from an upper level and expelled into a lower level.
  • the planes are to be understood as running perpendicular to the height of the air conditioning system. This height profile results, for example, in the installed state along the force of gravity, so that, for example, one level is higher than the other level relative to the support surface of the air conditioning system.
  • the support surface is, for example, a roof of a caravan or a mobile home.
  • the level of the at least one air outlet is as deep as possible, so that the outside air is also expelled as close as possible to the vehicle roof or generally close to the support surface of the air conditioning system.
  • the condenser heat exchanger has an arcuate shape and includes an interior area.
  • the condenser fan is located in this interior area.
  • the tip of the U faces the end face of the air conditioning system, so that the two flanks of the U extend along the two long sides.
  • the pockets between the housing and the condenser heat exchanger, which direct the outside air towards the bottom of the U-shape of the condenser heat exchanger, are thus, for example, larger cavities between the condenser heat exchanger and the internal structure of the housing.
  • the pockets in particular direct the outside air in the direction of the bottom of the U-shape, that is, in the direction of the part of the letter U from which the two lateral legs branch off.
  • the air routed to the base or top (as an alternative designation for the bottom) of the U is preferably the outside air drawn in via the long sides. This also ensures that as little heated outside air as possible gets back into the air conditioning system. This is mainly in the context of the design that the heated outside air is blown out over the rear face.
  • the housing has several air inlets and several air outlets, and that the air outlets are located on a common plane.
  • the plane of the air outlets is preferably as deep as possible or, in the installed state, as close as possible to the support surface for the air conditioning system.
  • the air outlets are designed in such a way that the outside air continues to move in as straight a line as possible after leaving the air outlet. This is to ensure that the kinetic energy of the heated outside air is used as far as possible from the housing. This in turn is intended to prevent the heated outside air from being sucked in again by the air conditioning system. This increases the real power.
  • One embodiment provides that the housing has several air outlets and that the air outlets only open on one outlet side of the housing. In this In the embodiment, after passing through the condenser heat exchanger, the outside air is led out of the housing through several air outlets only on one side.
  • the housing has several air inlets, and that the air inlets are connected to three intake sides of the housing.
  • the housing has four sides and is essentially rectangular in shape.
  • the outside air for removing the heat enters the air conditioning system from three sides. These are preferably an end face and the two long sides.
  • the air inlets extend over almost the entire front side and protrude as close as possible to the front side on the long sides.
  • the front side serves not only as a draw-in side, but also as a blow-out side.
  • the condenser heat exchanger is located behind the at least one air inlet, and that the condenser fan draws the outside air through the condenser heat exchanger.
  • the condenser heat exchanger extends along the air inlets and is preferably located behind the mouths of the air inlets.
  • Fig. 1 is a schematic representation of an air conditioner
  • FIG. 2a shows a section through an embodiment of an air conditioning system
  • FIG. 2b shows a view of a three-dimensional representation of the air conditioning system of FIG. 2a without a part of the housing
  • FIG. 3a shows an enlarged illustration of the section in FIG. 2a in the area of the evaporator
  • FIG. 3b shows a plan view of the area of the evaporator
  • Fig. 3c shows a detail similar to Fig. 3a through an alternative embodiment of the loading area of the evaporator
  • FIG. 4 shows a plan view of the support surface below the evaporator heat exchanger
  • FIG. 5 shows part of a three-dimensional representation of the area of the evaporator
  • FIG. 6 shows a view of the upper half of the housing of the air conditioning system
  • Fig. 7 is a view of the underside of the air conditioner.
  • Fig. 8 a view of the spatial representation of the underside and the rear end face of the air conditioning system.
  • the air conditioning system 1 shows schematically the structure of an air conditioning system 1 for cooling a room 100.
  • the cooling circuit or cooling process implemented therewith is described, for example, in WO 2007/042065 A1.
  • the space 100 is, for example, the interior of a caravan or a mobile home.
  • the air conditioning system 1 is therefore attached to the vehicle roof of the caravan or mobile home for this application.
  • a compressor compresses a gaseous refrigerant, which thus absorbs heat and is transported via a refrigerant line to a condenser (alternative name: condenser) 4.
  • the heat of the refrigerant is given off to the ambient air (or outside air) from the environment around the room 100.
  • the outside air is sucked in via a condenser fan 40 and, after interacting with the refrigerant, is blown out again in a condenser heat exchanger 41.
  • the compressed refrigerant liquefies.
  • the liquid and still under high pressure refrigerant is in an expansion device 5, the z. B. is designed as a throttle, relaxed to a lower pressure. The refrigerant cools down.
  • the refrigerant arrives at an evaporator 6, through which the air of the room 100 to be cooled is guided by means of an evaporator fan 60.
  • the air transfers its heat to the refrigerant, which turns into a gaseous state.
  • the gaseous refrigerant finally returns to the compressor 2 so that the cooling cycle can be continued.
  • the cycle can also be reversed so that the device 1 serves as space heating.
  • the described components of the air conditioning system 1 are located in a housing 10 which - as shown for example in WO 2007/042065 A1 - consists of two shells, depending on the configuration.
  • the housing 10 and the components are also designed and coordinated with one another in such a way that the housing is used to fasten the components of the air conditioning system 10 by means of a form fit.
  • FIG. 2a shows a section along a longitudinal axis through an embodiment of an air conditioning system 1.
  • the front sides of the air conditioning system 1 are thus shown here on the right and left, with the front side on the left here facing the direction of travel and the right front side 16 facing away from the direction of travel in the installed state.
  • This relates to the case that the air conditioner 1 is mounted on the roof of a movable vehicle such as a caravan or mobile home.
  • the air conditioning system 1 has two heat exchangers 41, 61 and two fans 40, 60.
  • the fans 40, 60 - in the functional sections of the condenser 4 and the evaporator 6 - each cause air to be guided through the heat exchangers 41, 62 and thereby it warms up or is cooled down.
  • the configurations of the two associated areas of the air conditioning system 1 ie evaporator 6 and condenser 4) are described in detail and in each case also with reference to FIG. 2a.
  • the one heat exchanger 61 can also be referred to as an internal or internal heat exchanger, since it cools the internal air, that is to say the air to be cooled in the room 100. This heat exchanger 61 thus interacts with the internal air.
  • the other heat exchanger 41 is used to interact with the outside air by the heat of the Käl teffens is transferred to the outside air. This heat exchanger 41 can therefore also be referred to as an external or external heat exchanger.
  • the exemplary air conditioning system 1 of FIG. 2a is a so-called roof air conditioning system, in which the main components are arranged on the roof of the room 100, the air of which is to be cooled.
  • the ceiling - not shown here - there is an opening through which the air enters the air conditioning system 1 and from there is blown out again - as cooled air.
  • a so-called air distributor for distributing the cooled air in the interior space 100 is then usually also located below the ceiling.
  • the air conditioning system 1 not only cools the room air, but also dries it.
  • the moisture in the air accumulates as condensation water (an alternative term used is condensate) and collects in particular on the evaporator heat exchanger 61.
  • the evaporator heat exchanger 61 shown in FIG. 2a has three rows of tubes 62 through which the refrigerant is passed. In section, the tubes 62 show up as circles. This can also be seen in the enlargement of FIG. 3a.
  • the spatial representation of the tubes is z. B. given in Fig. 5, in which it is also shown how the individual tubes 62 for the refrigerant on the end faces of the evaporator heat exchanger 61 are connected to one another.
  • FIG. 2a it can be seen that there would be space for another row of tubes 62 or a deeper evaporator heat exchanger 61 on the right-hand side.
  • This free space is filled in the variant of the air conditioning system 1 of FIG. 3c by the evaporator-Wärmetau shear 61 with four rows of tubes 62.
  • the space in the housing 10 thus allows evaporator heat exchangers 61 of different depths to be introduced.
  • the evaporator heat exchanger 61 stands upright in the housing 10 and the condensation water drips down by gravity. At the foot of the evaporator heat exchanger 61 is the condensation water then with suitable - not shown here - geometries or z. B. discharged by a pump.
  • FIGS. 3a and 3b the area around the evaporator heat exchanger 61 of a first embodiment and in FIG. 3c of a second embodiment is shown enlarged.
  • FIGS. 3a and 3c each show a lateral section and FIG. 3b shows a view from above of the area which is shown in FIG. 3a.
  • the evaporator heat exchanger 61 is clamped in the housing 10 from above and below and is thereby held in its position by the housing 10.
  • Such an enclosure is - as can be seen in particular in FIG. 3b - on the end faces of the evaporator heat exchanger 61, that is to say along the axis perpendicular to which the section runs here.
  • This fixing by means of a form fit between components and housing 10 is shown, for example, in WO 2007/042065 A1, which has already been cited.
  • Fig. 2b also shows that the evaporator fan 60 is also held by the housing 10 itself in its position ge.
  • the (room) air to be cooled is - indicated by the arrow in FIG. 3 a - moved from left to right in the direction of the evaporator fan 60 through the evaporator heat exchanger 61. See also the middle arrow in FIG. 5.
  • the bearing surface 63 in the housing 10 below the evaporator heat exchanger 61 is specially designed here (see FIGS. 3a and 3c). Furthermore, this shape of the support surface 63 is intended to prevent air from flowing under the evaporator heat exchanger 61 and thus not being cooled.
  • the evaporator heat exchanger 61 is not a flat or planar support surface 63, but rather individual ribs 64 which extend below and along the lower side of the evaporator heat exchanger 61. Between the ribs 64 there are valleys in which the condensation water collects and in the direction of - not here - Drainage openings can flow off. The height of the ribs 64 or, correspondingly, the depth of the valleys, which thus serve as collecting trays for the condensation water, determines the amount of condensation water that can be absorbed. The drainage from the valleys happens, for example, by the action of gravity or by the action of z. B. a - also not shown here - pump. As can be seen clearly in FIGS. 3 a and 3 c, the lower outer edges of the evaporator heat exchanger 61 abut the outer ribs and are therefore laterally encompassed by the housing 10.
  • the rib structure prevents air from erroneously flowing under the evaporator heat exchanger 61.
  • a further blockage for the air or the condensed water is generated.
  • the rib structure deflects air that should have got under the evaporator heat exchanger 61 again and again in other directions (up and down along the ribs 64). This reduces or prevents the flow of air below the evaporator heat exchanger 61 and also has the effect that the condensation water is not entrained.
  • the number and position of the ribs 64 is designed in such a way that a rib 64 is located under each row of the tubes 62.
  • Each rib 64 directs the air back into the evaporator heat exchanger 61 and at the same time increases the resistance for the air flowing underneath the evaporator heat exchanger 61 and therefore misdirected. If the condensation water drips down, it is guided in the direction of the valleys which each adjoin a rib 64.
  • the condensed water thus drips downwards and collects in the valleys between the ribs 64 of the support surface 63 io stands, therefore the condensation water cannot or only to a very small extent be entrained from one valley by the air flow in the direction of the evaporator fan 60.
  • the support surface 63 has a rectangular basic shape, which matches the rectangular base of the evaporator heat exchanger 61.
  • 3a and 3c shows a bulge 65 protruding into the space in front of the evaporator heat exchanger 61 in the housing 10 on the left in front of the evaporator heat exchanger 61. This bulge 65 is also shown in FIGS FIGS. 5 to 7 can be seen.
  • the air reaches the area in front of the evaporator heat exchanger 61 laterally (i.e. from the right and left) and moves from there in the direction of the evaporator fan 60 is designed similar to a wave crest or a dune, so that the air is guided into the area in front of the tip of the bulge 65 through the smoothly running sides.
  • the bulge 65 is slightly asymmetrical and therefore has two differently pronounced flanks.
  • the center of gravity or the tip of the bulge 65 as its maximum extension in the direction of the evaporator heat exchanger 61 is located at the level of the evaporator fan 60, which is itself offset from a longitudinal axis of the air conditioning system 1.
  • the bulge 65 partially narrows the space in front of the evaporator heat exchanger 61. The air enters this space laterally, so that on these two sides there is also the largest space between the bulge 65 as a distributor structure and the evaporator heat exchanger 61.
  • the outer contour of the side of the evaporator heat exchanger 61 which faces the bulge 65 is essentially given by a flat rectangular shape.
  • the position of the bulge 65 relative to the evaporator fan 60 can be seen, for example, from the inside of the upper housing half of FIG. 6.
  • the distributor structure 65 Above the maximum extent of the bulge 65 is initially the recess for the evaporator heat exchanger 61, which is rectangular in plan, and above - and here in the drawing, offset to the right from the center - the recess for the evaporator Fan 60.
  • the bulge 65 thus rises into the projected area (or before the downward extension) in front of the position of the evaporator fan 60 (see, for example, FIG. 5).
  • the center of gravity (or the tip) of the bulge 65 is not arranged along the central axis of the United evaporator fan 60, but is slightly offset to it.
  • the bulge 65 also extends along the height of the housing 65 or along the height of the evaporator heat exchanger 61 with a special shape.
  • the curve of the bulge 65 viewed here along the height of the housing 10 and therefore also along the gravitational pull in the installed state, initially narrows the upper space in front of the evaporator heat exchanger 61 to a very narrow area, then in a kind of S- Shape to expand the area.
  • the space in front of the lower part of the evaporator heat exchanger 61 is thus significantly larger and wider than the space in front of the upper part.
  • the distributor structure 65 thus narrows the space in front of the side of the evaporator heat exchanger 61 against which the air flows, not only from the two sides (right and left) towards the center, but also from bottom to top (in each case starting from the installed state and thus preferably relative to the vehicle roof on which the air conditioning system 1 is attached).
  • the largest volume is thus on the right and left sides and below in the direction of the earth field or in the direction of the vehicle roof when the air conditioning system 1 z. B. has been complained about on a roof.
  • the bulge 65 ensures a uniform speed distribution of the air in front of the evaporator heat exchanger 61 and thus improves its cooling behavior, since it is flown through evenly. Another advantage is that the air volume is evenly distributed and therefore the evaporator heat exchanger 61 is also uniformly flowed through by the air. This also improves the cooling performance. The air to be cooled is thus fanned out and distributed as possible over the full side of the evaporator heat exchanger 61.
  • Fig. 2a (here graphically on the right-hand side) the part of the air conditioning system 1 can be seen, into which outside air is sucked in, passed through a condenser heat exchanger 41 and blown out again into the outside space around the space to be cooled. The heat that was extracted from the indoor air is transferred to the outdoor air.
  • the condenser fan 40 is used for sucking in and blowing out.
  • the condenser fan 40 and the condenser heat exchanger 41 are located in the area of the rear end face 16 of the housing 10.
  • the longitudinal sides 15 are located between the two end faces 16, only one of which can be seen in FIG. 2b.
  • the special shape of the condenser heat exchanger 41 can also be seen in FIG. 2b. This is the shape of the capital letter "U” or, as an alternative designation, a horseshoe shape.
  • the condenser fan 40 is thus completely surrounded by the condenser heat exchanger 41 except for the opening of the “U”.
  • the condenser fan 40 is toward the closed end of the U-shape.
  • the condenser fan 40 moves the air into the plane below the condenser heat exchanger 41 and thus - as a result of the guidance through the structure of the air outlets 43 - also in the direction of the closed end of the U-shape.
  • the condenser heat exchanger 41 is thus also located above the level in which the heated outside air is discharged from the air conditioning system 1.
  • the closed end of the U-shaped condenser- The heat exchanger 41 is thus arranged in the direction of the end face 16 or the exhaust side 11.
  • the U-shape is open in the direction of the interior of the housing 10 or the air conditioning system 1.
  • the opening of the U faces the interior of the air conditioning system 1.
  • the area over which the outside air can pass through the condenser heat exchanger 41 to the condenser fan 40 and via this again out of the air conditioning system 1 is thus as large as possible.
  • FIG. 2b shows that the condenser-heat exchanger 41 has a greater distance on the two sides of the flanks of the housing 10, which finally opens into pockets 45 on the rear end face 16 of the housing 10, only one of which can be seen here .
  • the incoming air from the longitudinal sides 15 is increasingly deflected in the direction of the closed end of the U-shape of the condenser heat exchanger 41. This also helps ensure that most of the outside air comes from the longitudinal sides 15 of the housing 10. This further reduces the potential proportion of heated outside air that is drawn in.
  • the shape of the pockets 45 can be seen from the top of the housing 10, which is shown in FIG. 6.
  • the U-shaped course of the condenser heat exchanger 41 and the space around it can be seen.
  • the essentially rectangular shape of the housing 10 results in the pockets 45 around the bottom of the capital letter U of the condenser heat exchanger 41.
  • the ribs run between the air inlets on the two long sides.
  • Fig. 2a it is indicated by the two arrows that the intake area - along the earth's axis or, in the installed state, away from the vehicle roof - is above the discharge area.
  • the heated air is thus blown out close to the vehicle roof. This means that the air has a higher speed and is far enough away from the Suction openings 42 is moved.
  • This has the advantage that, if possible, only the normally temperature outside air and not the air that has already been heated by the air conditioning system 1 is sucked in. This increases the effectiveness of the air conditioning system 1, since more heat can be removed in this way.
  • the condenser heat exchanger 41 is essentially directly connected to the air inlet 42 in the housing 10.
  • the ambient air is thus drawn from the condenser fan 40 through the condenser heat exchanger 41. After the heat transfer, the warmer air flows through the condenser fan 41 and then back into the environment.
  • the outside air flows into the air conditioning system 1 from a position further away from the vehicle roof, passes the condenser heat exchanger 41 and is then diverted to a lower position and blown out in the vicinity of the vehicle roof via the air outlet 43.
  • FIG. 2a Only the rear air inlet 42 and the air outlet 43 located underneath can be seen in FIG. 2a.
  • the inlet 42 and outlet 43 are located one above the other and at the rear end of the housing 10 of the housing 10 or the air conditioning system 1 is usually arranged opposite to the direction of travel. It can also be seen that the condenser-heat exchanger 41 has three rows of tubes.
  • FIG. 2a it can be seen that an air inlet 42 for the ambient air is located on the end face 16 of the air conditioning system 1 that is opposite to the direction of travel. At this rear end 16 is in particular also the condenser-Wärmetau shear 41. This end 16 serves at the same time as - in particular the only - exhaust side 11 for blowing out the heated outside air and as an intake side 12 for the outside air.
  • FIG. 7 shows the underside of the air conditioning system 1 and thus the side that rests on the vehicle roof when installed.
  • the fan support for the condenser fan 40 can be seen in the upper area - or in the rear area in the installed state.
  • the air conditioning system 1 has in its area facing away from the direction of travel on all three outer sides, which can thus be referred to as intake sides 12 Air inlets 42 for the outside air.
  • the air inlets 42 (of which the individual ducts can be seen in the view of FIG. 7) on the longitudinal sides 15 extend very close to the upper end face 16 of the air conditioning system. 1
  • the condenser heat exchanger 41 is almost completely traversed by the outside air from three sides.
  • the heated air is only blown out via the end face 16 of the air conditioning system 1, which is near the top of the air conditioning system in FIG.
  • the condenser heat exchanger 41 rests on these carrier components 44 (see FIG. 2a).
  • the carrier components 44 thus simultaneously form the boundaries of the air outlets 43 and the support structure for the condenser heat exchanger 41. This contributes to the compactness of the air conditioning system 1 and enables the condenser heat exchanger 41 to be arranged in an elevated position relative to the air outlets 43 44 the narrowing of the air outlets 43, so that reaching into them can be prevented. Reaching in is particularly dangerous because otherwise one could get to the condenser fan 40.
  • the air outlets 43 run in their respective end regions in a tubular manner and parallel to one another. This prevents turbulence and ensures that the air continues to move in as straight a line as possible after leaving the air outlets 43. Overall, this serves the goal of ensuring that the heated air is as undisturbed as possible and therefore carried as far as possible from the air conditioning system. The ejection distance of the air is thus increased.
  • the underside of the housing 10 shown in FIG. 7 forms only part of the channels of the air outlets 43 through which the air is led to the outside.
  • These channels form the vehicle roof itself, on which the air conditioning system 1 is attached.
  • the air outlets 43 branch off from the circular condenser fan 40 with wide initial areas, in order then to open into the tubular end areas mentioned after the largest and longest possible area. It can be seen that the air outlets 43 overall have a vortex-like shape. Alternatively, at least the inner area around the condenser fan 40 can also be understood as the shape of a snail shell. The air outlet 43 located here on the right has the longest extension. The structure depends on the direction of rotation of the condenser fan 40.
  • FIG. 8 it can also be seen that the outside air is sucked in from three intake sides 12 of the housing 10 and is only discharged into one exhaust side 11.
  • the air inlets 42 can be seen here on two sides (long side 15 and rear face 16) and an air outlet 43 only on one side (rear face 16).
  • the air outlet 43 is located on that exhaust side 11, which is in the convincing roof on a driving z. B. a caravan or a mobile home installed state is opposite to the direction of travel.
  • the outside air heated by the interaction with the condenser heat exchanger 41 is therefore still carried away by the wind when driving.
  • the air inlets 42 on the long sides 15 consist of the individual shafts and a large slot-like opening above it.
  • the individual slot of the air inlet 42 on the rear face 16 is narrower than the two lateral slots on the longitudinal sides 15.
  • the web-shaped carrier components 44 are located between the air outlets 43.
  • the carrier components 44 also have the advantage that people are prevented from reaching into the air outlets 43. It can also be seen in FIG. 8 that the air outlets 43 are open at the bottom. This bottom of the air outlets 43 results only in the assembled state through the support surface, which is preferably a vehicle roof of a caravan or mobile home.
  • the carrier components 44 have a sufficient depth so that they sit on the support surface after assembly.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention concerne un système de climatisation destiné à refroidir de l'air, comprenant un échangeur de chaleur de condenseur (41), un ventilateur de condenseur (40) et un boîtier (10). Le boîtier (10) comprend au moins une entrée d'air et une sortie d'air pour l'air extérieur. Ceux-ci sont situés à différents niveaux sur la hauteur du système de climatisation (1), le niveau de l'entrée d'air étant positionné au-dessus du niveau de la sortie d'air. L'échangeur de chaleur de condenseur (41) présente la forme d'un "U" majuscule, et le ventilateur de condenseur (40) est agencé sous la forme d'un U. Des poches (45) sont situées entre le boîtier (10) et l'échangeur de chaleur de condenseur (41), qui dévient l'air extérieur dans la direction de la base de la forme en U de l'échangeur de chaleur de condenseur (41).
PCT/EP2021/000035 2020-05-13 2021-04-07 Système de climatisation WO2021228425A1 (fr)

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DE102020002862.4A DE102020002862A1 (de) 2020-05-13 2020-05-13 Klimaanlage
DE102020002862.4 2020-05-13

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WO2021228425A1 true WO2021228425A1 (fr) 2021-11-18

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CN106247486A (zh) * 2016-10-08 2016-12-21 珠海格力电器股份有限公司 室外机及其底盘总成
DE102009028522B4 (de) 2009-08-13 2017-05-11 Hanon Systems Kompakte Klimaanlage für ein Kraftfahrzeug
US20170190236A1 (en) 2014-09-01 2017-07-06 Hanon Systems Heat pump system for vehicle
CN206781486U (zh) * 2017-05-09 2017-12-22 宁波宏都电器有限公司 顶置式房车空调外机及房车空调

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3528607A (en) 1967-01-30 1970-09-15 Smiths Industries Ltd Engine cooling and passenger compartment heating apparatus for motor vehicles
US4641502A (en) 1985-01-09 1987-02-10 The Duo-Therm Corporation Roof mount air conditioner
US4732011A (en) 1985-05-17 1988-03-22 Diesel Kiki Co., Ltd. Air conditioner for vehicles
US4672818A (en) 1986-09-08 1987-06-16 Intertherm Inc. Three-member plastic rooftop air conditioner housing
US4748825A (en) 1987-10-29 1988-06-07 Thermo King Corporation Bus air conditioning unit
US5562411A (en) 1995-10-20 1996-10-08 Carrier Corporation Fan mounting arrangement
US5605055A (en) 1995-10-20 1997-02-25 Carrier Corporation Roof mounted air conditioner
US6357249B1 (en) * 2001-04-11 2002-03-19 Airxcel, Inc. Vehicle rooftop air conditioner
US7478541B2 (en) 2004-11-01 2009-01-20 Tecumseh Products Company Compact refrigeration system for providing multiple levels of cooling
WO2007042065A1 (fr) 2005-10-14 2007-04-19 Truma Gerätetechnick Gmbh & Co. Kg Appareil de climatisation pour installations mobiles
DE102008005539A1 (de) 2007-07-20 2009-01-29 Webasto Ag Kraftfahrzeug mit einer Klimaanlage sowie Klimaanlage und Dachmodul für eine solche Klimaanlage
DE102009028522B4 (de) 2009-08-13 2017-05-11 Hanon Systems Kompakte Klimaanlage für ein Kraftfahrzeug
EP2527173A1 (fr) 2011-05-25 2012-11-28 Truma Gerätetechnik GmbH & Co. KG Appareil de climatisation plafonnier pour un véhicule
DE102011080491A1 (de) 2011-08-05 2013-02-07 Behr Gmbh & Co. Kg Kraftfahrzeugklimaanlage
WO2013037335A1 (fr) 2011-09-16 2013-03-21 Faiveley Transport Leipzig Gmbh & Co. Kg Système de climatisation pour véhicules ferroviaires
CN103075773B (zh) * 2013-01-06 2015-03-18 上海普圣压缩机有限公司 一体化车船空调
US20170190236A1 (en) 2014-09-01 2017-07-06 Hanon Systems Heat pump system for vehicle
US20160161154A1 (en) 2014-12-05 2016-06-09 Hyundai Motor Company Air conditioner of vehicle
CN106247486A (zh) * 2016-10-08 2016-12-21 珠海格力电器股份有限公司 室外机及其底盘总成
CN206781486U (zh) * 2017-05-09 2017-12-22 宁波宏都电器有限公司 顶置式房车空调外机及房车空调

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