KR20190038307A - Air-conditioning system for a motor vehicle - Google Patents

Abstract

The present invention relates to a vehicle air conditioning system (1) including components for transferring and conditioning the air. The air conditioning system (1) includes a housing (2) including an air distributor (4). The air distributor includes: air outlets (4a, 4b, 4c); and at least two flow passages (8, 9) placed to make flows at the same time. Air mass flows guided through each of the first and second flow passages (8, 9) have different temperatures. At least one of the air outlets (4a, 4b, 4c) includes an extra mixing area (19) for mixing the air mass flows. The mixing area includes a first inlet (13a) for introducing the air mass flows guided through the first flow passage (8) in a flowing direction (13); and a second inlet (14a) for introducing the air mass flows guided through the second flow passage (9) in a flowing direction (14). The mixing area (19) is formed to mix the air mass flows. The inlets (13a, 14a) are placed to make the air mass flows enter the mixing area (19) in different directions.

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 conditioning air. The air conditioning system includes a housing including an air distributor, and the air distributor is formed by two or more flow paths arranged at the same time as air discharge openings. The air mass flows having passed through the first flow path and the second flow path, respectively, have different temperatures.

Due to the increasing number of technical parts in the vehicle, optimization with respect to the installation volume is required so that the desired various functions can be absolutely ensured through the way of embedding these parts. For this reason, bulky air conditioning components, such as those known in, for example, mixing chambers, flow guiding devices, and fixed air conditioners in the form of eddy current devices, can not be inserted into the vehicle due to the narrow space conditions.

Additional conditions of the vehicle air conditioner device that harmonize, and in some cases divide, the flow of supplied air mass and direct the individual air mass flows to different areas of the vehicle cabin are dependent on location and function, 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, resulting in air being cooled and dehumidified and, if necessary, reheated and then directed to the cabin. At this time, the air is blown into the leg room, for example, and is blown into the room through the openings in the dashboard, and is immediately guided to the windshield through windshield side discharge openings to prevent blurring of the windshield or to remove the windshield.

In the case of these types of air conditioners, the air mass flow to be fed into the passenger compartment is divided into two partial air mass flows. The required airflow temperature is regulated by temperature flaps and different control mechanisms. In this case, one partial air mass flow is guided through the heating heat exchanger and heated. At the same time, the second part air mass flow as cold wind passes beside the heating heat exchanger. The two partial air mass flows which are subsequently temperature controlled are mixed to reach the target temperature necessary to achieve sufficient comfort of the air in the passenger compartment.

The mixing process of the cold air mass flow and the warm air mass flow is very difficult because the flow path is very short and the flow rate according to the operation mode of the air conditioning system is complicated and the temperature flap adjustment inside the housing is not easy . Further, in the air conditioning system, the time taken to mix the air mass flow is long.

Typically, several air outlets of the air conditioner are fed with air mass flow from one common mixing chamber. However, due to the different requirements of the individual functions of the air outlets, different temperatures of air mass flows must be ensured and this situation is achieved by additional inserts such as hot air channels or cold air channels. Different air mass flow temperatures at different outlets such as leg room, dashboard and windshield side ventilation are indicated by temperature stratification.

In addition to the warm air channels or the cold air channels, additional guide devices, particularly air flaps formed on the housing side, are provided to guide the harmonized air toward the air outlet port in the leg room, for example. In addition, the air outlets of the mutually matching housings are advantageously interleaved for natural stratification of air mass flows within the housing as intended. The possibility of variations in the air guide within the housing and housing is necessary due to the complexity of many factors in recent development processes that take a very long time.

DE 101 47 114 A1 describes an air conditioning system for an automobile having an air inlet area and an air outlet area and an arrangement for distributing air mass flows into different car areas. The apparatus includes a housing having two flow paths from an air inlet to an air outlet. The guided air along the first air flow path is heated. The temperature flap regulates the inflow of air flowing from the first flow path and / or the second flow path to the air outlet area.

In systems known in the prior art, such systems have very complex additional components, 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 backpressure in the air flow, which in turn leads to increased power requirements, as well as lower power consumption, furthermore, the overall efficiency of the vehicle.

It is an object of the present invention to provide an air-conditioning system for an air-conditioner which is capable of achieving optimal air temperature control according to individual air outlets as well as optimum mixing of air mass flows, And to provide an air conditioning system capable of temperature control with complexity. In this case, the air must be guided as intended, and the space requirements for these components as well as the number of components used must also be minimal. Also, the cost of manufacturing, installation and maintenance must be minimal.

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

The above problem is solved by the air conditioning system for a differential car according to the present invention. The air conditioning apparatus includes a housing having means for conveying and conditioning air, in particular cooling, dehumidifying and heating air, and an air distributor. The air distributor is formed with air discharge openings and two or more flow paths arranged to be flowable at the same time. The partial air mass flow passing through the first flow path and the second flow path, respectively, have different temperatures.

According to the concept of the present invention, one or more air outlets of the air outlets are formed with separate mixing zones. This mixing zone may be guided in a predetermined flow direction through a first flow path and a first inlet for introducing air mass flow directed or flowed out of the first flow path through the first flow path, And a second inlet for introducing an air mass flow exiting from the second inlet.

The mixing zone, which is preferably assigned only to the air outlets, is in this case configured to mix air mass flows, in particular to mix mass flows of different temperatures. The inlets of the mixing zone are arranged to introduce air mass flows into the mixing zone in different directions. The air mass flow out of the mixing zone in a mixed form is then guided to the air outlet.

The air outlet is preferably formed with a flow guide device for closing and opening. In this case, the mixing zone is formed in front of the flow guide device of the air outlet when viewed in the air flow direction.

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 leg room-side air outlet and / or the windshield-side air outlet and / or the air outlet in the dashboard may be formed with separate mixing areas. In addition, a separate mixing zone may be assigned to each air outlet.

In this case, the air outlet port may also mean a group of air outlet ports, so that the air mass flow that flows out of the mixing zone is directed to a specific air outlet port such as a leg room air outlet group, a windshield air outlet group, or a dashboard air outlet group Group.

According to an improvement of the invention, the mixing zone is formed in the interior of the housing by means of one or more first separation elements, in particular in a separate mixing chamber from one mixing chamber and / or in the formation of multiple mixing chambers have.

According to an alternative first formation example of the present invention, the air conditioning system comprises at least one second separation element, which separates the first flow path at least locally, and the first flow path and the second flow Are arranged to guide the air mass flows guided through the path as intended. In this case, the air mass flow guided through the first flow path flows around the second separation element while the air mass flow guided through the second flow path flows along the second separation element.

Each of the separating elements is preferably formed as a separating wall, in particular a fixed separating wall. The second separation element may also be formed in this case as an air channel, in particular as an at least locally widely closed air channel, in which the air channel has a first flow path in the inlet region, Cross.

According to an alternative second embodiment of the invention, the air conditioning system comprises at least one second separation element, which is arranged to guide the air mass flow guided through the second flow path as intended have. In this case, the air mass flow guided through the first flow path flows past the second separation element side, while the air mass flow guided through the second flow path flows along the second separation element.

In this case, the second separation element is preferably formed as an air channel that is widely closed or at least partially open. These air channels are preferably disposed in the wall region of the housing and protrude into the volume closed by the housing or project outwardly from the housing wall. At this time, the air channel may be formed in such a way as to open towards the volume closed by the housing, and may have a U-shaped wall. The air mass flow guided through the first flow path preferably flows past the second separation element side, for example through the side surrounded by the enclosure and open side, without additional air resistance. Additional air resistance arises, for example, in the separation element, particularly in the passage or overflow of air channels on the outer surface.

The arrangement and formation of the separation elements and the inlets of the mixing zone allow the air mass flows of cold and warm air, guided through the flow paths, to flow into the mixing zone at different angles, so as to be well mixed in the mixing zone. Thus, the flow directions of the air mass flows upon introduction into the mixing zone are mutually oriented at a predetermined angle, in particular in the range of 30 ° to 150 °.

The first inlet is preferably formed between the wall of the housing and the end face of the first separation element. Wherein the flow cross-section of the first inlet is limited by the wall of the housing and the end face of the first separation element. The second inlet is preferably formed as a cutout or opening within the first separating element.

According to another preferred embodiment of the present invention, the mixing zone having the second inlet is arranged so that the air mass flow guided in the predetermined flow direction through the second flow path or flowing out of the second flow path is introduced linearly into the mixing zone Respectively.

In this case, the mixing zone is preferably assigned to the air outlet of the leg room. The linear flow means that the air mass flow is not deflected but flows out of the second flow path and flows directly into the second inlet of the mixing zone, especially without any directional variation.

A further advantage of the present invention is that the air mass flow guided in the flow direction determined through the first flow path or flowing out of the first flow path flows out of the first flow path, A mixing zone with an inlet is arranged. Wherein said deflection angle a is defined between the flow direction of the air mass flow exiting the first flow path and the flow direction of the air mass flow entering the first inlet of the mixing zone.

In this case, the deflection angle [alpha] is preferably greater than 90 [deg.], Especially up to 180 [deg.].

According to a further preferred embodiment of the present invention, a means for conveying air is provided with a blower, means for cooling and / or dehumidifying the air are provided with an evaporator of the refrigerant circulation system, A heating heat exchanger is formed, and these means are arranged inside the housing.

According to an improvement of the present invention, the heating heat exchanger is disposed in a first flow path, occupying a cross-sectional space of the flow path. The contact surface between the heating heat exchanger and the wall of the flow path is preferably closed in the manner of an airtight seal so that the air mass flow guided through the first flow path is entirely guided through the heat transfer area 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 transfer area of the heat exchanger.

As a result, the flow paths formed in the interior of the air distributor are such that air mass flow with a warm air mass flow or a relatively high temperature in a first flow path and air mass flow with a relatively cold temperature air flow in a second flow path The flow can be operated to be transported. The air mass flows guided through the flow paths are mixed with each other within the mixing zone.

According to a further preferred embodiment of the invention, the flow paths are formed with flow guiding devices so that the flow paths can be opened and closed independently of one another, in which case an air mass flow through the air distributor causes the flow paths Can be divided into passing partial air mass flows.

The flow guiding devices of the flow path and / or the flow guiding devices of the air outlet are preferably disposed in such a manner that they are rotatably supported in a continuous manner about the rotation axis, respectively, so that the flow cross section of the flow path and / The flow cross sections of the air outlet openings can be continuously opened and closed between 0% and 100%, respectively.

According to an improvement of the invention, the air distributor guides the air mass flow so as to guide at least one partial air mass flow of the guided air mass flow through the first flow path into the mixing zone of the air outlet at the outlet of the flow path And, in particular, a warm air channel. In this case, mixing with the second air mass flow is prevented.

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

Optimum mixing is achieved with respect to the temperature of the air supplied to the passenger,

- It takes less time to mix air to be harmonized,

- control complexity is minimized and the air temperature is optimally regulated according to individual air outlets,

- Stable temperature stratification is realized,

- Installation space is reduced by minimizing the number of parts,

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

- Maximum 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. In the drawing:
1 shows in a cross-sectional view a prior art automotive air conditioning system having one air inlet, several air outlets and a common mixing chamber and following flow paths,
FIGS. 2A and 2B show a side view and a perspective view of an automotive air conditioning system having one air intake port, various air outlets, and a separate mixing zone for the air paths of the leg room and the leg room,
3A and 3B are graphs showing the temperature fluctuations of the air mass flow in the air outlet of the leg room according to the position of the flow guiding device for opening and closing the flow paths,
Fig. 3a shows a graph of the temperature variation of the prior art air conditioning system 1 'according to Fig. 1, and Fig.
Fig. 3B shows a temperature variation graph of the air conditioning system 1 according to Figs. 2A and 2B.

1 shows a prior art air conditioning system 1 'having an air distributor 4' having a housing 2 'having one air intake 3 and various air outlets 4a, 4b and 4c, The air conditioner is shown in a cross-sectional view.

The air conditioning system 1 'includes a blower (not shown in the figure) for sucking air through the air inlets 3 and for transferring air through the housing 2'. The air mainly sucked in the horizontal direction (x) is then guided to the air distributor 4 'through the evaporator area, wherein the air distributor has a windshield side air outlet 4a, a leg room side air outlet 4b, Board air outlet 4c.

The air mass flow at the evaporator area perfusion is guided through the heat transfer area of the first heat exchanger 6, which is described as an evaporator of the refrigerant circulation system. During overflow of the heat transfer area of the evaporator 6, the air can be cooled and / or dehumidified. The evaporator 6 is arranged in front of the air distributor 4 'in terms of the air flow direction 13, 14.

The harmonic air mass flow in the superheating of the evaporator 6 can then be divided into the first flow path 8, in particular the air mass flow flowing through the hot air path and the second flow path 9, in particular the cold air path. In this case, each of the air mass flows may be guided to one of the flow paths 8, 9 or may be divided proportionally into two flow paths 8, 9. When entering into the hot air path 8, the air mass flow is deflected in the vertical direction (y) in the horizontal direction (x).

The air mass flow guided through the hot air path 8 is heated during the superheating of the second heat exchanger 7 and the heating heat exchanger. The heated air mass flow can then be subdivided in succession. In this case, the first partial air mass flow is immediately introduced into the mixing chamber 10 and then the cool air mass < RTI ID = 0.0 > And the cold air mass flow is guided through the cold air path 9. The second warm air portion air mass flow can be guided directly to the air outlet, for example, the windshield side air outlet 4a through the warm air channel 12. [

The air conditioning system 1 ', in particular the housing 2' and the heat exchangers 6, 7 extend in the depth direction z.

The second flow path 9 is formed as a bypass bypassing the heating heat exchanger 7 disposed inside the first flow path 8. In this case, the second flow path 9 guides air around the heat exchanger 7, cooled and / or dehumidified (as cool air and partial air mass flow) in the evaporator 6. The air mass flow guided through the flow path 9 formed as bypass bypassing the heating heat exchanger 7 does not change the temperature. All of the air mass flow guided through the first flow path (8) is guided and heated via the heat transfer area of the heat exchanger (7). Thus, inside the air distributor 4 ', the air mass flow preliminarily conditioned in the evaporator 6 may be heated as at least partial mass flow in the heat transfer area superfluid of the heat exchanger 7.

The air outlets 4a, 4b and 4c are connected to the common mixing chamber 10 as flow paths, such as flow paths 8 and 9, for guiding hot air and cold air, respectively. In order to guide the pre-conditioned air in the direction of the specific air outlets 4a, 4b, 4c, the warm air channel in the mixing chamber 10 can be arranged as a device 12 for guiding air mass flow. In this case, particularly, at least one hot air partial mass flow can be guided toward the air outlet 4a of the windshield.

The leg room side air discharge port 4b is provided with air flow guided in the flow direction 13 through the first flow path 8 and air mixed with cold air guided in the flow direction 14 through the second flow path 9 Is supplied. The hot air and the cold air are mixed in the mixing chamber 10 before being discharged through the air outlet 4b.

In addition to the flow paths 8, 9 and the air outlets 4a, 4b, 4c, the air distributor 4 'is different from the air outlets 4a, 4b, 4c in the form of air flaps for closing or opening these air outlets 4a, Flow guide devices 5a, 5b and 5c, in which case the air outlets can be appropriately controlled as required.

Air mass flows through the hot air path 8 and the cold air path 9 are controlled with the aid of the temperature flap 11 which closes or opens these flow paths 8,

A very complicated process leading to air guidance, division and harmonization within the air conditioning system 1 'makes it difficult to control the desired temperature of the air mass flow of the various air outlets 4a, 4b, 4c when operating in different operating modes.

2a and 2b show flow paths 8 and 9 with one air intake port 3 and various air outlet ports 4a, 4b and 4c and a separate mixing zone 19 for the air outlet port 4b of the leg room, ) Are disclosed in a side view and a perspective view.

The air conditioning system 1 again includes a blower (not shown) for sucking air through the air inlet 3 and for transferring the air through the housing 2. The sucked air is guided to the air distributor (4) through the evaporator area. The air distributor 4 is formed with an air discharge opening 4a of the windshield, an air discharge opening 4b of the leg room, and an air discharge opening 4c in the dashboard.

The first heat exchange, which acts as an evaporator of the refrigerant circulation system when the air mass flow into the housing 2 is viewed in the air flow direction 13, 14 and the evaporator area perfusion arranged in front of the air distributor 4, Is guided via the heat transfer area of the unit (6). The air may then be cooled and / or dehumidified.

The harmonic air mass flow in the overflow of the evaporator 6 can then be divided into the first flow path 8, in particular the air mass flow flowing through the hot air path and the second flow path 9, in particular the cold air path. In this case, each of the air mass flows can be entirely guided to one of the flow paths 8, 9 or can be divided proportionally into two flow paths 8, 9.

In the superheating of the second heat exchanger (7), which is disposed in the hot air path (8) and formed as a heating heat exchanger, the air mass flow absorbs heat. The heated air mass flow may subsequently be subdivided, in which case at least the first partial air mass flow is directed through the mixing chamber 10 to one or more mixing zones of the air outlet 4b. The second warm air portion air mass flow can be guided directly through the hot air channel 12 disposed inside the mixing chamber 10 to the air outlet 4a of the windshield, And can be guided to the air discharge port 4c in the dashboard as if it were not.

In this case, the second flow path 9 formed as a bypass bypassing the heating heat exchanger 7 conveys air cooled and / or dehumidified (as cool air and partial air mass flow) in the evaporator 6 to the first flow path (7) arranged in the heat exchanger (8). The air mass flow guided through the second flow path 9 does not vary in temperature. The air mass flow passed through the first flow path 8 and simultaneously through the heat transfer area of the front heating heat exchanger 7 is heated. In some cases, the pre-conditioned air mass flow in the evaporator 6 can be heated in the heat transfer region overflow of the heat exchanger 7.

The air distributor 4 is provided with a plurality of air flaps for closing or opening the air outlets 4a, 4b and 4c, like the air distributor 4 'of the air conditioning system 1' And flow guide devices 5a, 5b and 5c.

Air mass flows to be guided through the hot air path 8 and the cold air path 9 are controlled with the aid of flow guiding devices 15 and 16 which close or open these flow paths 8 and 9. [ In this case, the flow guiding device 15 is used to block or open the flow cross-section of the first flow path 8 of the heating heat exchanger 7 disposed in the first flow path, and is also expressed as a warm air channel 15 . The air mass flow of cold air flowing in the direction of the mixing chamber 10 can be varied by the flow guiding device 16 of the second flow path 9. The flow guide device 16 of the cold air path is also expressed as a cold air flap.

The flow guiding devices 5a, 5b, 5c and the flow guiding devices 15, 16 of the air outlets 4a, 4b, 4c can be suitably controlled as needed. The flow guide devices 5a, 5b, 5c, 15 and 16, which are formed in a generally straight plane, in the transverse section given by the plane spreading in the horizontal direction x and in the vertical direction y, Is rotatably supported and extends in the depth direction (z). At the same time, the flow paths 8, 9 and the air outlets 4a, 4b, 4c can be successively closed and opened between 0% and 100%, respectively.

Separate mixing zones are assigned to the individual air outlets 4a, 4b and 4c, which are illustratively shown in Figures 2a and 2b with respect to the mixing zone 19 of the leg room air outlet 4b.

The mixing zone 19 is formed in front of the flow guiding device 5b of the leg room air outlet 4b formed by the air flap in the air flow direction 13 and 14 and is provided with a first separation element 17, And is separated from the mixing chamber 10 by a wall. In this case, the first separating element 17 is preferably formed in a fixed manner and is arranged in a plane extending essentially in the vertical direction y, the depth direction z, the vertical direction y and the horizontal direction x, .

The second separation element 18 at least locally blocks the mixing chamber 10 and the hot wind path 8 at the subsequent inlet and is arranged to extend in a plane extending essentially in the horizontal direction (x, z) . However, the second separation element may be formed as a closed air channel, also referred to as a cold air channel, in which the cold air channel is oriented in the horizontal direction (x) To the mixing zone 19 as intended. Air mass flow flowing through the hot air path 8 flows around the cold air channel.

The separation elements 17, 18 may be formed, for example, on the wall of the housing 2 and in the middle of the housing 2.

According to an embodiment not shown in the drawing, the second separation element is formed in the wall region of the housing 2 as an air channel which is widely closed or at least partly open. In this case, the air channels are arranged in such a way as to project into the volume closed by the housing 2, or in such a manner as to protrude outwards from the wall of such a housing 2 in such a way as to expand the volume surrounded by the housing 2. [ . The air channels may be formed in such a way that they are opened or closed in the volume direction surrounded by the housing 2. [ The open air channel has a U-shaped wall in cross-section.

The air mass flow guided through the hot air path 8 flows past the second separation element formed as an air channel, for example, without additional air resistance that occurs during separation element passage or overflow.

In particular, the mixing chamber 19 separated from the mixing chamber 10 by the first separation element 17 has two inlets 13a and 14a. In this case, the first inlet 13a is provided for introducing hot air heated in the heating heat exchanger 7, which is disposed in the hot air path 8, into the mixing zone 19, and the second inlet 14a is connected to the evaporator 6) is provided for introducing cooling air cooled and / or dehumidified during the overflow and guided through the cold air path (9) into the mixing zone (19). The first inlet 13a is in this case formed between the wall of the housing 2 and the end face of the first separating element 17 while the second inlet 14a is formed in the interior of the first separating element, As shown in Fig.

The cold wind flows in the shortest flow path, basically straight into the mixing zone 19 and in the horizontal direction (x) through the mixing chamber 10 along the second separation element 18. In this case, the cold wind is guided around the hot wind channel 12, which is particularly evident in Fig. 2b. The second inlet 14a is arranged so that the cold air flowing out from the cold air path 9 flows directly.

The hot air flowing through the hot air path 8 and the mixing chamber 10 and into the mixing zone 19 is guided into the mixing chamber 10 by turning the separation element 18 in the region of the second separation element 18 do.

The warm air is also guided along the wire 20, which is different from the straight line, as compared with the cold wind. Into the first inlet 13a, the hot air flowing in the vertical direction (y) flows out of the hot air path 8 and is then deflected to the deflection angle alpha. At the same time, the second inlet port 14a is arranged so that cold air flowing from the hot air path 8 can flow through the shortest flow path, though not immediately.

The deflection angle of the warm air mass flow defined between the flow direction 13 of the warm air flowing from the hot air path 8 into the mixing chamber 10 and the direction of the hot air flow flowing into the first inlet 13a of the mixing zone 19 alpha] is greater than 90 [deg.]. In the embodiment of Fig. 2b, the warm air is deflected within a deflection angle of about 180 degrees.

By the arrangement of the separating elements 17 and 18 and the inlets 13a and 14a it is achieved that cold and warm air are introduced into the mixing zone 19 at different angles.

As a result, the leg room-side air outlet 4b is provided with a mixture of hot air guided in the flow direction 13 through the first flow path 8 and cool air guided in the flow direction 14 through the second flow path 9 Air mass flow consisting of air is supplied. These warm air and cold air are mixed in the mixing zone 19 assigned to the air outlet 4b before being discharged through the air outlet 4b.

By the arrangement of the first separation element 17, the mixing zone 19 and the mixing chamber 10 are separated. The second separation element 18 allows the hot air flowing into the mixing chamber 10 from the hot air path 8 to be directed toward the air outlet 4b without being displaced by the cold air flowing from the cold air path 9 . Otherwise, a large amount of warm air is supplied to the air outlet 4b. It may become difficult to control the temperature of the air mass flow in the leg room-side air outlet 4b.

A mixed zone, which is assigned to the windshield side air outlet 4a but which is not shown in the figure, flows out from the hot wind path 8 as required, and then the hot wind and the cold wind flap 16, which are guided through the hot wind channel 12, The cold air guided through the flow cross-section of the cold air path 9 can be supplied. The hot air introduced through the first inlet of the mixing zone and the cold air introduced through the second inlet of the mixing zone are then introduced into the mixing zone inside the mixing zone allocated to the windshield side air outlet 4a before being discharged through the air outlet 4a Lt; / RTI >

The air discharge port 4c in the dashboard may also include a mixing zone not shown in the figure. In such a mixing zone, a cold wind that flows out from the hot wind path 8 and a cold wind which can be closed by the cold wind flap 16 The guided cold air is supplied through the flow cross-section of the path (9). Air mass flows of warm air and cold air are guided to the mixing zone as intended, for example, by means of separation elements, in particular air channels, through the mixing chamber 10. The hot air introduced through the first inlet of the mixing zone and the cold air introduced through the second inlet of the mixing zone are introduced into the mixing zone allocated to the air outlet 4c in the dashboard before being discharged through the air outlet 4c Mixed. The air discharge port 4c in the dashboard is also represented as an air discharge port that is introduced into the passenger or driver's side because the air mass flow guided through the air discharge port 4c can be directly incident on the passenger.

Therefore, a separate separation area is assigned to each of the air outlets 4a, 4b, 4c. In this case, the mixing chamber 10 is divided into special zones, i.e. mixing zones. The air mass flows entering the mixing zones are guided as intended. At the same time, the temperature of the air mass flows discharged through the air outlets 4a, 4b, 4c can be controlled very simply.

3a and 3b show the leg room air outlet 4b (see FIG. 4) according to the position of the flow guide devices 11, 15 and 16, respectively, and in accordance with the division of the air mass flows through the hot air path 8 and the cold air path 9, ) ≪ / RTI > Figure 3a shows the temperature variation for the prior art air conditioning system 1 'according to Figure 1 and Figure 3b shows the temperature variation for the air conditioning system 1 according to Figures 2a and 2b. The positions of the flow guiding devices 11, 15 and 16 are indicated by "% warm air", respectively.

In this case, the temperature indicates the maximum possible temperature ratio of the air mass flow. The air conditioning systems (1, 1 ') are each operated in an at least partially opened air outlet port (4a) in the dashboard and a leg room air outlet port (4c) mode at least partially opened.

The air sucked into the housings 2, 2 'through the air inlet 3 by the blower is guided through the heat transfer area of the first heat exchanger 6, which acts as an evaporator, while simultaneously cooling and / or dehumidifying do. The harmonic air mass flow at the time of the evaporator 6 overflow is then detected by the position of the flow guide device 11 as the temperature flap of the air conditioning system 1 'of FIG. 1 or by the flow guide device of the air conditioning system 1 of FIG. 15, 16) into the air mass flow flowing through the hot air path (8) and the cold air path (9).

The air mass flow guided through the hot air path 8 is heated in the heat transfer area overflow of the second heat exchanger 7, which acts as a heat heat exchanger. The state of the air mass flow guided through the cold air path 9 as a bypass bypassing the heating heat exchanger remains unchanged.

The heated air mass flow guided through the hot air path 8 flows into the mixing chamber 10 or the mixing zone 19 and is guided through the cold air path 9 and is likewise fed into the mixing chamber 10 or the mixing zone 19). ≪ / RTI >

In this operation example, the air mass flow of the leg room side air outlet 4b of the air conditioning system 1 'according to Fig. 1 reaches an average temperature of about 51 占 폚 at the position of the temperature flap 11 which is 50% warm air.

The air conditioning system 1 according to FIGS. 2A and 2B having separate mixing zones of the separation outlets allows air mass flow temperature control of the corresponding air outlets 4a, 4b, 4c. By the arrangement and formation of the mixing zone 19, and in particular by the structure and arrangement of the separation elements 17, 18 and the flow directions of the air mass flows formed by these separation elements, 4b, and 4c in the mixing zones 19 that are assigned to the air outlets 4a, 4b, 4c than the mixing that occurs in the mixing chamber 10 of the present invention.

In this case, the temperature mass flow of the leg room-side air outlet 4b is set to the air conditioning system 1 'according to Fig. 3a at the position of the flow guiding devices 15, 16 of the air conditioning system 1 according to Fig. Lt; RTI ID = 0.0 > temperature. ≪ / RTI > The flow guide device 16 of the cold air path 9 at the 30% position is arranged in such a way as to close the flow cross section of this cold air path 9 by 30%, while the flow guide device 15 of the hot air path 8 Is arranged in such a manner as to open the flow cross section of this hot air path 8 by 30%. Correspondingly, the flow guiding devices 15, 16 at the 70% position are arranged in such a way as to close the flow cross-section of the cold-air path 9 by 70% and to open the flow cross-section of the hot-air path 8 by 70%.

The formation of the mixing zone of the air discharge ports 4a, 4b and 4c by the separation method makes it possible to control the temperature of the air mass flow of the individual air discharge ports 4a, 4b and 4c very easily. In addition, the separate mixing zones reduce the mixing time of the air mass flow of cold and warm air and ensure a more stable temperature stratification.

1, 1 ': Air conditioning system
2, 2 ': housing
3: Air intake
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: a flow guide device, an air flap of the leg room air outlet 4b
5c: a flow guide device, an air flap of the dashboard air outlet 4c
6: first heat exchanger, evaporator
7: second heat exchanger, heat exchanger
8: first flow path, hot air path
9: second flow path, cold air path
10: Mixing chamber
11: Flow guide device, temperature flap
12: Device, warm channel
13: direction of warm air flow
13a: first inlet
14: Direction of cold air flow
14a: second inlet
15: a flow guide device of the hot air path 8,
16: a first flow guide device of the cold air path 9,
17: first separation element
18: second separation element
19: mixing zone of the leg room air outlet 4b
20: Wired
α: deflection angle in the direction of the warm air flow
x: horizontal direction
y: vertical direction
z: depth direction, horizontal direction

Claims (20)

Wherein the air distributor 4 comprises two or more flow paths 8, 9 arranged coaxially and at the same time air outlet ports 4a, 4b, 4c and a housing 2 comprising an air distributor 4, , And the air mass flows guided through the first flow path 8 and the second flow path 9, respectively, have different temperatures, and are provided with means for conveying and harmonizing the air 1. An air conditioning system (1)
Wherein one or more air outlets (4a, 4b, 4c) of the air outlets are formed with a separate mixing zone (19), which is guided through the first flow path (8) (14a) for introducing air mass flow guided in the flow direction (14) through the first flow inlet (13a) and the second flow path (9) Characterized in that the air inlets (13a, 14a) are arranged to mix the air mass flows as described above, wherein the air mass flows are arranged to flow into the mixing zone (19) in different directions ). The air conditioning system according to claim 1, wherein the air discharge openings (4a, 4b, 4c) are formed with flow guiding devices (5a, 5b, 5c) for closing and opening, Is formed in front of the flow guiding devices (5a, 5b, 5c) of the air outlets (4a, 4b 4c) in the directions (13, 14). The air conditioner according to claim 1, wherein the air distributor (4) is formed with one or more windshield side air outlet openings (4a), leg room side air outlet openings (4b), and dashboard air outlet openings , Air conditioning system (1). The air conditioning system (1) according to claim 3, characterized in that the leg room side air outlet (4b) is formed with a separate mixing zone (19). The air conditioning system (1) according to claim 1, characterized in that each air outlet (4a, 4b, 4c) is formed with a separate mixing zone (19). The air conditioning system (1) according to claim 1, characterized in that the mixing zone (19) is formed within the housing (2) so as to be separated by at least one first separation element (17). 3. The method according to claim 1, characterized in that at least one second separation element (18) is arranged to at least locally block the first flow path (8) and through the first flow path (8) , Wherein the air mass flow guided through the first flow path (8) flows around the second separation element (18) and flows through the second separation element Characterized in that the air mass flow guided through the two flow paths (9) flows along the second separation element (18). 7. An air conditioning system (1) according to claim 6, characterized in that said separation element (17, 18) is formed as a separating wall. 2. The apparatus according to claim 1, wherein at least one second separation element is arranged to guide the air mass flow guided through the second flow path (9) as intended, via the first flow path (8) Characterized in that the guided air mass flow flows past the second separation element and the air mass flow guided through the second flow path (9) flows along the second separation element (18). System (1). The air conditioning system (1) according to claim 9, characterized in that the second separation element is formed as an air channel. 7. An air conditioning system (1) according to claim 6, characterized in that the first inlet (13a) is formed between the wall of the housing (2) and the end face of the first separation element (17). The air conditioning system (1) according to claim 7, characterized in that the second inlet (14a) is formed as a cutout inside the first separation element (17). 2. The method according to claim 1, characterized in that the mixing zone (19) is arranged such that the air mass flow guided in the flow direction (14) through the second flow path (9) (14a) is provided in the air conditioning system (1). 2. The method according to claim 1, characterized in that an air mass flow guided in the flow direction (13) through the first flow path (8) flows out of the first flow path (8) Is deflected to a deflection angle (alpha) defined between the flow direction of the air mass flow entering the inlet (13a) and the flow direction (13). 15. An air conditioning system (1) according to claim 14, characterized in that said deflection angle (?) Is greater than 90 degrees. A heat exchanger (7) is formed as a means for conveying air, an evaporator (6) of a refrigerant circulation system and a means for heating air as means for cooling and / or dehumidifying air , Characterized in that the means are arranged inside the housing (2). 17. A method according to claim 16, characterized in that the heating heat exchanger (7) is disposed in the first flow path (8) in such a way as to occupy the cross-sectional space of the flow path (8) ) Is guided through the heat transfer area of the heating heat exchanger (7), and the second flow path (9) is guided through the heat exchanger (7) bypassing the heating heat exchanger (7) (1). ≪ / RTI > 2. A device according to claim 1, characterized in that the flow paths (8, 9) are formed with flow guiding devices (15, 16) so that the flow paths (8, 9) can be opened and closed independently of each other, Characterized in that the air mass flow through the distributor (4) can be divided into partial mass flows through the flow paths (8, 9). 3. A method according to claim 2, characterized in that the flow cross sections of the air outlets (4a, 4b, 4c) and / or the flow cross sections of the flow paths (8, 9) are opened and closed successively between 0% and 100% Characterized in that the flow guiding devices (5a, 5b, 5c, 15, 16) are supported and arranged so as to be able to rotate continuously about a rotation axis. 2. A method according to claim 1, characterized in that the air distributor (4) is arranged to distribute at least one partial air mass flow of the air mass flow guided through the first flow path (8) 4b, 4c, or to guide the air mass flow to the air outlets 4a, 4b, 4c, wherein mixing with the second air mass flow (1). ≪ / RTI >

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