KR20190072417A - Air-conditioning system for a motor vehicle - Google Patents

Abstract

The present invention relates to an air conditioning system (1) for a vehicle, having means for conveying and conditioning air. The air conditioning system (1) has a housing (2) including an air distributor (4). The air distributor has air outlets (4a, 4b, 4c) and at least two flow paths (7, 8) arranged such that air can flow therethrough at the same time. The air outlets (4a, 4b, 4c) and the flow paths (7, 8) are arranged to be continuous to a mixing chamber (9). Air mass flows, guided through a first flow path (7) and a second flow path (8), have different temperatures. Further, the air conditioning system (1) has at least one flow guide device (5a, 5b, 5c) opening and closing one of the air outlets (4a, 4b, 4c). Furthermore, a wall (10) restricting the first flow path (7) is provided inside the housing (2). At least one flow guide device (5b) is arranged to extend a wall (10) to protrude into the mixing chamber (9), or is arranged to occlude an opening formed in the wall disposed extending into the mixing chamber (9), in a first end position, and is arranged to occlude the air outlet (4b) in a second end position. In this case, the flow guide device (5b) releases the flow cross-section of the first flow path (7) which is continuous to the air outlet (4b).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-

The present invention relates to an automotive air conditioning system having means for transporting and air-conditioning air. The air conditioning system includes a housing including an air distributor, wherein the air distributor is formed with air outlets and two or more flow paths disposed in a co-perfusion arrangement, wherein the air outlets and flow paths are Are arranged in a continuous manner with the mixing chamber. The air mass flows having passed through the first flow path and the second flow path have different temperatures.

In the case of automobiles, due to the increasing number of technical parts, optimization with respect to the installation volume is required so that the variety of desired functions can be ensured through the arrangement of these parts. For this reason, bulky air conditioning components can not be inserted into the vehicle due to their low space ratio, as is known in the case of fixed chamber air conditioners in the form of mixing chambers, flow guiding devices and eddy current devices.

The additional requirement of an automotive air conditioning system that cooperates with, and in some cases divides, the flow of supplied air mass and directs the individual air mass flows into different areas of the passenger compartment, It is necessary to supply a different air mass flow with controlled temperature. In this case, the supplied air mass flow passes through several heat exchangers, the air is cooled and dehumidified and, if necessary, reheated and then guided to the car. The air is then blown into the leg room, blown into the vehicle room through openings in the dashboard, and guided directly to the windshield through windshield side outlets to prevent windshield fogging or to remove gasses.

In these types of air conditioning systems, the air mass flow to be fed into the passenger compartment is divided into two partial air mass flows. The required temperature of the airflow is regulated through temperature flaps and different control mechanisms. In this case, one partial air mass flow is guided through the heating heat exchanger and then heated. At the same time, the second partial air mass flow as cold air flows bypassing the heating heat exchanger. The two partial air mass flows with different temperatures are then mixed to achieve the sufficient comfort and comfort of the air in the car and to reach the target temperature. The various air outlets of the air conditioning system are fed from a common mixing chamber.

KR 10 2005 0112279 A describes such an automotive air conditioning system with means for increasing the mixing of differentially controlled partial mass air flows, especially in the mixing chamber. The partial air mass flow guided through the heating heat exchanger flows into the mixing chamber along the guide walls. This guide wall has an air mixing element for mixing warm air guided through the hot heat exchanger with cold air on a free end section disposed in such a way as to project into the mixing chamber. Such an air mixing element is formed with a plurality of flow openings for vortex formation of air mass flows.

In the case of conventional air conditioning systems, the flow cross-section of the air outlets can be changed between the two end positions, i.e. "fully open" and "closed ", respectively via air flaps. At least one air flap of the air flaps is formed to regulate air mass flow at the leg room side, and the air flaps may be disposed at various intermediate positions other than the two end positions. The temperature of the air flowing out to the leg room through the air outlet is basically constant over the flow cross section of the air outlet.

In order to realize a constant temperature of the outgoing air over the entire flow cross section of the leg room side air outlet, the opening of the air flap or the air outlet may be shielded based on the arrangement of the air outlet. In the prior art, a wall is known as a means for shielding the opening of the leg room side air outlet. This wall is formed inside the housing of the air conditioning system, and the heated air guided through the heating heat exchanger bypasses the heating heat exchanger So as to be guided by the cool air. The two partially-air-conditioned differentially-flowed masses are introduced into the mixing chamber for mixing and then discharged from the various air outlets at the corresponding mixing temperatures. As a result of the opening shielding of the leg room side air outlet through the wall arrangement, the air mass flow to the air outlet of the leg room is greatly deflected when passing through the wall in the mixing chamber area. In this case, the free flow cross section of the warm air guided through the heat exchanger is greatly reduced, which again greatly increases the pressure loss within the flow. Due to the increased pressure loss, the amount of air delivered to the air outlet of the leg room is reduced. When the air conditioning system is operated in a heating mode, in particular, in which all the air ventilated in such an air conditioning system passes through the heating heat exchanger, the pressure loss of the air mass flow can provide the air mass flow necessary to achieve sufficient comfort and comfort It can be high enough.

Other systems known in the prior art have very complicated additional elements and means in terms of devices, which require additional space, resulting in cost as well as additional installation complexity and corresponding maintenance complexity. In addition, the additional inserts cause an increased back pressure in the air flow, which again increases power demand and power consumption, further reducing the efficiency of the entire vehicle.

SUMMARY OF THE INVENTION An object of the present invention is to provide an air conditioning system in which the pressure loss of the airflow flowing into the air outlet of the leg room and through the air outlet of the leg room and the pressure loss is minimized when the air conditioning system operates in the heating mode. In this case, for example, to reduce noise emissions, the air should be guided as intended to produce minimal back pressure. As well as the number of components used, their space requirements should be kept to a minimum. In addition, when the air conditioning system operates in a mode requiring a mixture of cold and warm air, air, in particular warm air, must be guided to ensure a constant temperature of the air flowing over the entire flow cross-section of the air outlet.

This problem is solved by the object having the features of the independent claim. Improvements are set forth in the dependent claims.

The above object is solved by an air conditioning system for an automobile according to the present invention. The air conditioning system comprises a housing including means for transferring and conditioning air, in particular for cooling, dehumidifying and heating air, and an air distributor. The air distributor is formed with air outlets and two or more flow paths arranged so as to be able to flow at the same time, and the air outlets and the flow paths are arranged in such a manner that they are respectively connected to the mixing chamber. In this case, the air mass flow through the first flow path and the second flow path, respectively, have different temperatures. In addition, the air conditioning system is formed with one or more flow guiding devices for opening and closing air outlets.

According to the concept of the present invention, a wall for limiting the first flow path is formed inside the housing. The at least one flow guiding device for opening and closing the air outlet of one of the air outlets comprises a wall defining a first flow path in a manner protruding into the mixing chamber at a first end position, Or in such a manner as to close the openings formed in the walls arranged in such a way as to protrude into the mixing chamber. At the second end position, the at least one flow guiding device is disposed in such a manner as to close the air outlet respectively. In the intermediate position, the flow guiding devices each have a position in which the flow cross-section of the first flow path leading to the air outlet is released.

The flow guiding device according to the present invention can be regarded as a movable part of the wall at the first end position through arrangement and formation and releases a large flow cross section at the intermediate position.

The wall is preferably formed between the first flow path and the air outlet in such a manner as to separate the air outlet from the first flow path.

According to an improvement of the invention, the wall has a stop element for the flow guide device at the free end and also at the front. The flow guiding device is disposed in such a manner as to abut a stop element which closes the wall at the end positions, respectively. The expression 'closing' means that the wall is formed in a fixed shape and the wall connected to the housing by floating is terminated at the stop element, so that the stop element forms a closing part of the wall at the front.

According to a preferred embodiment of the present invention, the flow guiding device is arranged in such a way that it is rotatably supported about a rotation axis. In this case, the rotary shaft is formed apart from the flow guiding device. The rotary shaft is preferably arranged symmetrically with respect to the flow guiding device and is disposed in the symmetry plane of the flow guiding device and has the shortest distance to the flow guiding device.

In addition, the rotary shaft is preferably arranged on the one hand, spaced apart from the wall and the housing, which restricts this air outlet in the air outlet area. On the other hand, the axis of rotation is preferably spaced from the stop element and disposed between the stop element and the mixing chamber.

According to another preferred embodiment of the present invention, the flow guiding device is formed as a plate having four side edges and two surfaces. In this case, the flow guide device preferably has a constant radius of curvature about the central axis and has a plate-like form with a constant thickness, in particular a cut-out form of a hollow cylindrical jacket.

A further advantage of the present invention is that the flow guiding device is formed with two edges arranged in a straight line parallel to one another, wherein the two edges limit the flow guiding device as a first end and a second end.

According to an improvement of the present invention, the first surface of the flow guide device formed by the cutout of the hollow cylindrical jacket is convex, and the second surface formed in such a manner as to face the first surface is concave.

Preferably, in the first end position, the flow guiding device is disposed by opening the air outlet in such a manner that the first end abuts the stop element of the wall and the wall extends in the direction of the mixing chamber. In this case, the second end of the flow guide device is disposed in the mixing chamber.

In the second end position, the flow guiding device is preferably arranged so that the second end abuts the stop element of the wall, and the first end closes the air outlet in a manner abutting the housing

A further advantage of the present invention is that the flow guiding device is arranged such that in the intermediate position of the two end positions, the two ends are spaced apart from the stop element of the wall, in this case the second end is connected to the heating heat exchanger And are arranged in a straight line at one end.

The first end of the flow guide is preferably arranged such that an air mass flow guided to the air outlet is guided through the air outlet in parallel to the wall and then to the housing, out of the flow guide.

The flow guiding device is also preferably a deflecting element of the air mass flow guided to the air outlet so as to cause the air mass flow to flow between the stop element of the wall and the second surface of the concave shape and / or along the first surface of the convex shape As shown in FIG.

According to a preferred embodiment of the present invention, the air distributor is formed with at least one windshield side air outlet, a leg room side air outlet, and a dashboard air outlet.

In this case, the 'air outlet' may mean a group of air outlets, and consequently the air mass flow out of the mixing chamber may be the same as the leg room air outlet group, windshield side air outlet group and air outlet group in the dashboard To a specific air outlet group.

The flow guiding device according to the present invention is preferably formed by an air flap of the leg room side air outlet.

According to an improvement of the present invention, a blower is formed as a means for conveying air, and an evaporator of a refrigerant circulation system is formed as means for cooling and / or dehumidifying air, and as means for heating air A heating heat exchanger is formed, and these means are disposed inside the housing.

The heating heat exchanger is preferably disposed in such a manner as to occupy a cross-sectional area of the flow path inside the first flow path. The contact surface of the heating heat exchanger and the flow path wall is preferably sealed in a technically hermetic manner so that the air mass flow guided through the first flow path is completely guided through the heat exchange surface of the heating heat exchanger.

The second flow path is preferably formed as a bypass bypassing the heating heat exchanger. So that the air mass flow guided through the bypass does not contact the heat exchange surface of the heat exchanger.

As a result, the flow paths formed inside the air distributor are such that a hot air mass flow or a high temperature air mass flow is delivered in the first flow path and a cold air mass flow or a low temperature air mass The flow can be operated to be transported. The air mass flow guided through the flow paths can be mixed with one another in the mixing chamber.

According to another preferred embodiment of the present invention, the flow paths with flow guiding devices are formed such that these flow paths can be opened and closed independently of each other, in which case the air mass flow passing through the air distributor will cause the flow paths Can be distributed to the passing partial air mass flow.

The flow guiding devices of the flow paths and / or the flow guiding devices of the air outlets are preferably arranged such that the respective flow cross-sections in which the flow guiding devices are arranged are opened and closed continuously between 0% and 100% As shown in Fig.

The air conditioning system according to the invention has several other advantages:

In particular, when the air conditioning system is operated in the heating mode, the pressure loss is minimized, so that the maximum flow cross section and the maximum air mass flow to the air outlet of the leg room, among other things, It is ensured that the required warm air and cold air are mixed,

- Minimizing the number of parts reduces installation space,

- The backpressure is minimized when the housing is infused, and in addition, noise emissions of the air conditioning system are reduced, particularly with regard to the air outlet, which is difficult to control,

- the operating efficiency of the air conditioning system is increased, and

- Optimum comfort and comfort for passengers in the car is realized.

Further details, features and advantages of the present invention will be apparent from the following detailed description of embodiments with reference to the accompanying drawings. An automotive air conditioning system having one air inlet and several air outlets and one flow path leading to a common mixing chamber is shown in cross section in each of the sections:
Figure 1 is a diagram in accordance with the prior art,
At this time, regarding the air conditioning system, the flow guiding device of the air outlet port of the leg room side
2A, the leg room-side air outlet is shown as a mixed position for mixing hot air and cold air in an opened state,
In FIG. 2B, the position is shown as a position for guiding hot air through the open leg room side air outlet, and
In Fig. 2C, the leg room side air outlet is shown as the closed position.

1 shows a prior art automotive air conditioning system 1 'having an air distributor 4' having a housing 2 'having one air inlet 3 and various air outlets 4a, 4b and 4c, In particular, the air conditioning system is shown in a cross-sectional view.

The air conditioning system 1 'includes a blower (not shown) for sucking air passing through the air inlet 3 and for transferring air through the housing 2'. Basically, the air sucked in the horizontal direction (x) is then guided to the air distributor 4 'through the evaporator area, where the air distributor is connected to the windshield side air outlet 4a, the leg room side air outlet 4b, And an air outlet port 4c in the board.

When passing through the evaporator region, the air mass flow is guided through the heat exchange surface of the first heat exchanger, not shown in the figure, which acts as an evaporator of the refrigerant circulation system. On the heat exchange surface superfluid of the evaporator, the air can be cooled and / or dehumidified. The air can be cooled and / or dehumidified during the overflow of the heat transfer area of the evaporator. The evaporator is disposed before the air distributor (4 ') when viewed in the direction of air flow.

Subsequently, the air mass flow ventilated during the evaporator overflow is divided into an air mass flow flowing through the first flow path 7, in particular a hot air path, and an air mass flow, flowing through the second flow path 8, . In this case, each of the respective air mass flows can be divided into two flow paths 7, 8 guided or proportionally to one of the flow paths 7, 8 of the flow path. When passing through the hot air path 7, the air mass flow is deflected in the horizontal direction (x) to the vertical direction (z).

The air mass flow guided through the hot air path 7 is heated during the superheating of the second heat exchanger 6, in particular the heating heat exchanger. The heated air mass flow can then be introduced into the mixing chamber 9 and then mixed with a cold air mass flow which likewise flows into the mixing chamber 9, Lt; / RTI >

The heated air mass flow is guided along the wall 10 'formed at the center inside the housing 2' after flowing out of the heat exchanger 6. Basically, the wall 10 'extending in the plane extending in the vertical direction (z) and the depth direction (y) separates the hot air path 7 from the leg room side air outlet 4b.

On the one hand, a stop element 11 'for the air flap 5b' of the leg room-side air outlet 4b is formed on the front face of the wall 10 'along with the free end of the wall 10' Respectively. The air flap 5b 'touches the stop element 11' formed on the wall 10 ', with the air outlet 4b closed. At the extension of the wall 10 'passing the stop element 11' in the vertical direction z, on the other hand said wall 10 'is formed with a fixed extension 10-1'. The immovable stationary extension 10-1 'extends the wall 10' into the mixing chamber 9. The free end of the stationary extension 10-1 'aligned in the vertical direction z is disposed within the mixing chamber 9.

The warm air channel 7 extends into the mixing chamber 9 by the extension 10-1 'so as to ensure a constant temperature of the air flowing out over the entire flow cross section of the leg room side air outlet 4b The hot air in the hot air path 7 is guided to the mixing chamber 9 without inflow into the leg room side air outlet 4b in advance. As a result, the expansion portion 10-1 'is used to shield the opening of the air flap 5b' or the air outlet 4b.

The enlarged portion 10-1 'of the wall 10' protruding into the mixing chamber 9 allows the warm air to be guided into the mixing chamber 9 by bypassing the air outlet 4b of the leg room. After warm air has flowed out from the hot air path 7, such warm air is significantly deflected when passing through the expansion part 10-1 'in the region of the mixing chamber 9. As shown by the arrows, the flow direction 12 of the warm air is changed by a maximum of 180 degrees. In this case, the free flow cross section of the warm air is greatly reduced to such an extent that the pressure loss in the flow significantly increases. The increase in pressure loss reduces air mass flow to the air outlet 4b of the leg room.

In particular, according to Fig. 1, when the air conditioning system 1 'operates in the heating mode (in this case, the air to be air-conditioned in the air conditioning system 1' is guided through the hot air path 7 including the heating heat exchanger 6 , The pressure loss of the air mass flow can rise to such an extent that the air mass flow required to achieve sufficient comfort and comfort in the leg room side air outlet 4b can not be utilized.

The second flow path (8) is formed as a bypass bypassing the heating heat exchanger (6) disposed within the first flow path (7). In this case, the second flow path 8 guides the air through the heat exchanger 6 as a cold air and a part air mass flow cooled and / or dehumidified in the evaporator. The air mass flow through the second flow path 8 formed as bypass which bypasses the heating heat exchanger 6 does not undergo a temperature change. All of the air mass flow passing through the first flow path 7 is guided via the heat exchange surface of the heat exchanger 6 and heated. Thus, inside the air distributor 4 ', the air-mass flow, optionally pre-conditioned in the evaporator, can be heated as at least partial mass flow upon heat exchange surface superfluidity of the heat exchanger 6.

The air outlets 4a, 4b and 4c are flow paths which, in turn, are connected to a common mixing chamber 9, such as flow paths 7 and 8 for guiding hot air and cold air, respectively. A hot air channel (not shown) for guiding the flow of the hot air mass flow may be arranged in the mixing chamber 9 in order to guide the already warmed air toward the specific air outlet ports 4a, 4c . In this case, more than one hot air partial mass flow may be guided in the direction of the windshield air outlet 4a or the air outlet 4c in the dashboard.

The leg room side air outlet 4b may be supplied with an air mass flow in which hot air guided through the first flow path 7 and cold air guided through the second flow path 8 are mixed. The hot air and the cold air are mixed in the mixing chamber 9 before being discharged through the air outlet 4b.

In addition to the flow paths 7 and 8 and the air outlets 4a, 4b and 4c, the air distributor 4 'has a different air flap shape for closing and opening these air outlets 4a, 4b and 4c Flow guiding devices 5a, 5b ', 5c, in which case the air outlets can be suitably controlled as required. The flow guiding devices 5a, 5b ', 5c, which are formed as a straight surface, in terms of the cross section given by the plane extending in the horizontal direction x and the vertical direction z, Is rotatably supported and extends in the depth direction (y). The air outlets 4a, 4b, 4c can be closed and opened continuously between 0% and 100%, respectively.

Air mass flows through the hot air path 7 and the cold air path 8 are controlled with the aid of flow guiding devices 13 and 14 which close or open the flow paths 7 and 8, The flow guiding devices 13 and 14 formed are either completely closed or open at the end positions of the hot air path 7 or the cold air path 8 respectively and at the intermediate positions the hot air path 7 and the cold air path 8 Lt; RTI ID = 0.0 > of the < / RTI > By adjusting the flow guide devices 13 and 14, the air mass flow is divided into a partial air mass flow passing through the hot air path 7 and a partial air mass flow passing through the cold air path 8. [ The flow paths 7, 8 can be closed and opened continuously between 0% and 100% by the flow guiding devices 13, 14.

1, when the air conditioning system 1 'is operated in the heating mode (in this case, the entire air to be air-conditioned in the air conditioning system 1' is guided through the hot wind path 7 including the heating heat exchanger 6 , The hot air path 7 along with the temperature flap 13 is completely open while the cold air path 8 with the temperature flap 14 is closed.

According to an alternative embodiment not shown in the drawings, the air conditioning system is provided with a single temperature sensor (not shown) instead of the two flow guide devices 13, 14 formed separately from each other to close and open the hot air path 7 and the cold air path 8, And this temperature flap satisfies the function of the separately formed temperature flaps 13,14. In this case, air mass flows to be guided through the hot air path 7 and the cold air path 8 are controlled with the aid of a single temperature flap which closes or opens the flow paths 7, 8.

2A to 2C show a flow guiding device of one air inlet 3 and various air outlet ports 4a, 4b and 4c, a hot air passage 7 and a cold air passage 8 and a leg room air outlet 4b, The automotive air conditioning system 1 having the air conditioner 5b is shown at a different position.

The main difference between the air conditioning system 1 'according to Fig. 1 and the air conditioning system 1 according to Figs. 2a to 2c is that the walls 10, 10', in particular the extension 10-1 ' And the flow guide devices 5b and 5b 'of the leg room side air outlet 4b. The same features in the air conditioning systems (1, 1 ') are denoted by the same reference numerals. Reference is made to the embodiment of Fig. 1 in connection with the formation of the same features.

The air conditioning system 1 includes a wall 10 formed at the center inside the housing 2 which basically extends in a plane extending in the vertical direction z and the depth direction y, And separates the hot air path 7 from the air outlet 4b. The air mass flow guided through the hot air path 7 is exited from the heat exchanger 6 and then guided along the wall 10 in the direction of the mixing chamber 9.

A stop element 11 for the flow guiding device 5b of the leg room side air outlet 4b is formed on the free end of the wall 10 aligned in the vertical direction z, that is, on the front face of the wall 10. A flow guiding device 5b formed of air flaps at the end positions abuts the stop element 11 blocking the wall 10 in the vertical direction z. There is no extension extending beyond the stop element 11 and extending the wall 10 in the vertical direction z, as is the case with the air conditioning system 1 'of FIG.

The air flaps 5b are arranged in such a manner that they can be rotatably supported about a rotary shaft 15 and at this time the rotary shaft is in contact with the air flaps 5b 'of the air conditioning system 1' (5b) and is spaced apart from the air flap (5b). The rotary shaft 15 is symmetrically aligned with the air flap 5b in such a manner as to extend in the depth direction y and has a shortest distance with respect to the air flap 5b within the symmetry plane of the air flap 5b. In this case, the rotary shaft 15 is disposed offset in the horizontal direction (x) up to the area of the air outlet 4b. The axis of rotation 15 is also spaced from the stop element 11 in the vertical direction z and is formed between the stop element 11 and the mixing chamber 9.

The flow guiding device 5b has two straight edges running in the depth direction y and these edges limit the flow guiding device 5b as the end portions 16 and 17. The first surface 18 of the flow guide device 5b is formed convexly. Since the circular flow guide device 5b has a constant wall thickness in terms of the cross section going through the plane extending in the vertical direction z and the horizontal direction x, , And the second surface 19 of the flow guide device 5b is recessed. In this case, the flow guiding device 5b is formed with a plate of constant thickness bent at a constant radius around the central axis, and in particular with four side edges as cut-outs of the hollow cylindrical jacket. In this case, the plate spans a specific angular range.

According to one alternative embodiment not shown in the drawings, the flow guide device may be provided with a straight plate having a constant thickness. In addition, the flow guide device may have a shape different from that of a plate having a constant thickness in addition to the molded shape.

The flow guiding device 5b (see FIG. 2A), which is shown as a mixing position for mixing the hot air flowing through the hot air path 7 and the cold air flowing through the cold air path 8 in a state where the leg room side air outlet 4b is opened, This flow guiding device 5b is designed so that the first end portion 16 is positioned in the stop element 11 in such a way that the wall 10 extends in the vertical direction z and in the direction of the mixing chamber 9. [ Touch. The flow guide device 5b is disposed at the first end position. The temperature flaps 10, 11 of the hot air path 7 and the cold air path 8 are open.

The second end 17 as a free end of the flow guiding device 5b aligned in the vertical direction z in the arrangement according to Figure 2a is arranged inside the mixing chamber 9. [ The flow guide device 5b is configured so that the wall 10 extends into the mixing chamber 9 similarly to the extension 10-1 'of the wall 10' of the air conditioning system 1 ' And is arranged in the mixing position.

When the flow guide device 5b is disposed at the mixing position, the hot air channel 7 extends into the mixing chamber 9, and as a result, the air flows through the entire flow cross section of the leg room side air outlet 4b, The warm air in the hot air path 7 is guided into the mixing chamber 9 without introducing the air into the leg room side air outlet 4b in advance. As a result, the flow guiding device 5b is formed for shielding the opening of the air outlet 4b.

2b, the flow guiding device 5b is arranged at a position for guiding the warm air flowing through the hot air path 7 to the open air outlet 4b of the leg room, 17 are spaced apart from the wall 10, in addition to the stop element 11. The end portions 16, Between the wall 10, in particular the stop element 11, and the flow guiding device 5b is formed an opening in the form of a gap for passing air therethrough. The air conditioning system 1 is operated in a heating mode, for example, in which the temperature flap 13 of the hot air path 7 is open and the temperature flap 14 of the cold air path 8 is closed . The flow guide device 5b is arranged at an intermediate position.

The second free end 17 of the flow guide device 5b is arranged in the direction of the heating heat exchanger 6 in the horizontal direction x and in the direction of the heating heat exchanger 6 arranged in the vertical direction z in particular And are arranged in a straight line. This arrangement allows the first portion of the hot air exiting the heat exchanger 6 to flow from the hot air channel 7 to the stop element 11 of the wall 10 and through the stop element 11, The second portion of the hot air flowing out of the heat exchanger 6 is guided to the air outlet 4b. In this case, the hot air mass flow is guided to the shortest flow path leading to the air outlet 4b between the stop element 11 and the second surface 19 of the concavely formed flow guide device 5b.

Only a small amount of hot air flows towards the wall 10 and along the wall 10 and most of the warm air is directed to the surface of the second surface 19, particularly concavely curved, So that the maximum area of the flow cross-section is released, and as a result, the pressure loss in the air flow is minimized. A small pressure loss in the guidance of the warm air realizes the maximum air mass flow flowing into the air outlet 4b of the leg room.

The first free end 16 of the flow guiding device 5b is also arranged in the vertical direction z so that the air mass flow is preferably guided through the air outlet 4b in parallel with the walls of the housing 2, And is arranged in the direction of the air outlet 4b. The flow guiding device 5b can also be arranged at every other intermediate position.

For example, in order to guide the flow guide device 5b in accordance with Fig. 2c into the mixing chamber 9 through the hot air flow 7 through the hot air path 7, the leg room side air outlet 4b is closed The flow guide device 5b has a second end 17 abutting the stop element 11 while the first end 16 of the flow guiding device 5b is in contact with the housing 11 in the region of the air outlet 4b, (2). The flow guide device 5b is arranged at the second end position.

With the air outlet 4b closed, the flow guide device 5b is basically arranged in the plane extended in the horizontal direction (x, y) and the wall 10 is moved in the direction of the mixing chamber 9 The region of the mixing chamber 9 is larger than the arrangement in which the flow guide device 5b is shown as the first end position because it does not protrude into the mixing chamber 9 in an extended manner.

The flow guiding device 5b of the air outlet 4b can be appropriately controlled as necessary and is continuously rotatably supported in the rotational direction 20 between the two end positions about the rotational axis 15 . Therefore, the air outlet 4b can be closed and opened continuously between 0% and 100%.

1, 1 ': Air conditioning system
2, 2 ': housing
3: Air inlet
4, 4 ': air distributor
4a: windshield air outlet
4b: leg room air outlet
4c: Dashboard air outlet
5a: a flow guide device, an air flap of the windshield air outlet 4a
5b, 5b ': a flow guide device, an air flap of the leg room air outlet 4b,
5c: flow guide device, air flap of the dashboard air outlet 4c
6: Heat Exchanger, Heat Exchanger
7: first flow path, hot air path
8: second flow path, cold path
9: Mixing chamber
10, 10 ': wall
10-1 ': an extension of the wall 10'
11, 11 ': a stop element of the flow guide device 5b, 5b'
12: Flow direction of warm air
13: Flow guide device, temperature flap of cold air path (7)
14: Flow guide device, temperature flap of hot air path (8)
15: the rotation axis of the flow guide device 5b
16: a first end of the flow guide device 5b
17: the second end of the flow guide device 5b
18: the first surface of the flow guide device 5b
19: the second surface of the flow guide device 5b
20: rotation direction of the flow guide device 5b
x: horizontal direction
y: depth direction, horizontal direction
z: vertical direction

Claims (18)

Wherein the air distributor 4 comprises an air outlet 4a, 4b, 4c arranged in such a way as to communicate with the mixing chamber 9, Wherein the air mass flows guided through the first flow path (7) and the second flow path (8), respectively, have different temperatures and are formed with two or more flow paths (7, 8) (5a, 5b, 5c) for opening and closing a sphere of air outlets (4a, 4b, 4c) of one of said air outlets and having means for transporting and conditioning air An air conditioning system (1) for an automobile,
A wall 10 is provided within the housing 2 for limiting the first flow path 7 and the at least one flow guiding device 5b is provided at a first end position with the mixing chamber 9, In such a manner as to extend the wall 10 so as to protrude inwardly or to close an opening formed in the wall arranged in such a manner as to protrude into the mixing chamber 9, and in the second end position, 4b, in which case the flow guiding device 5b is arranged in such a way as to release the flow cross-section of the first flow path 7 leading from the intermediate position to the air outlet 4b (1). ≪ / RTI > 3. The apparatus of claim 1, wherein the wall (10) is formed between the first flow path (7) and the air outlet (4b) in such a manner as to separate the air outlet (4b) and the first flow path (1). ≪ / RTI > 3. A device according to claim 1 or 2, characterized in that the wall (10) is formed at its free end with a stop element (11) for the flow guiding device (5b) Are arranged in such a way that they contact the stop element (11) which blocks the wall (10). 4. The apparatus according to claim 3, wherein the flow guiding device (5b) is arranged to be rotatably supported about a rotary shaft (15), wherein the rotary shaft (15) is spaced apart from the flow guiding device (1). The flow guiding device according to claim 4, characterized in that the rotary shaft (15) is symmetrically aligned with the flow guiding device (5b) and is arranged in the symmetry plane of the flow guiding device (5b) (1). ≪ / RTI > The air conditioner according to claim 4, characterized in that the rotary shaft (15) is disposed apart from the housing (2) and a wall (10) that limits the air outlet (4b) System (1). 5. An air conditioning system (1) according to claim 4, characterized in that the rotary shaft (15) is spaced from the stop element (11) and arranged between the stop element (11) and the mixing chamber (9). The air conditioning system (1) according to claim 3, characterized in that the flow guiding device (5b) is formed as a plate having four side edges and two surfaces (18, 19). The air conditioning system (1) according to claim 8, characterized in that the flow guiding device (5b) is formed as a plate having a constant thickness bent with a certain radius around a central axis. The flow guide device (5b) according to claim 8, characterized in that the flow guiding device (5b) has two edges which are aligned in parallel to one another and which are arranged at a first end (16) and a second end ) Of the air conditioning system (1). 9. A device according to claim 8, characterized in that the second surface (19) is formed concavely in such a way that the first surface (18) of the flow guiding device (5b) is convex and confronts this first surface (1). The flow guide device according to claim 10, characterized in that the flow guide device (5b) has a first end (16) at the first end position abutting the stop element (11) Wherein the air outlet (4b) is opened and arranged in such a way that the second end (17) is located inside the mixing chamber (9). The flow guide device according to claim 10, characterized in that the flow guide device (5b) has a second end portion (17) at a second end position abutting the stop element (11) and a first end portion (16) , And the air outlet (4b) is closed by the air outlet (4). 11. A device according to claim 10, characterized in that the flow guide device (5b) has two end portions (16,17) at an intermediate position spaced apart from the stop element (11) of the wall (10) (17) are arranged in alignment with the end of the heating heat exchanger (6) in the direction of the heating heat exchanger (6). 15. A method according to claim 14, characterized in that the air mass flow from the flow guide device (5b) is guided through the air outlet (4b) parallel to the wall (10) ) Are aligned in the direction of the air outlet (4b). The flow guide device according to claim 14, characterized in that the flow guide device (5b) as a biasing member of the air mass flow to the air outlet (4b) is arranged such that air mass flow is generated between the stop element (11) And / or arranged to be guided along a first convexly formed surface (18). The air conditioner according to claim 1, characterized in that the air distributor (4) is formed with at least one windshield air outlet (4a), a leg room air outlet (4b) and a dashboard air outlet System (1). 15. A method according to claim 14, characterized in that the heating heat exchanger (6) is arranged in the first flow path (7) in such a way as to occupy a cross-sectional area of the flow path (7) The guided air mass flow is completely guided through the heat exchanging surface of the heating heat exchanger 6 and the second flow path 8 is formed as bypass bypassing the heating heat exchanger 6 (1).

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