WO2013045089A1

WO2013045089A1 - Thermal conditioning of a motor vehicle which, in particular, has an electric drive

Info

Publication number: WO2013045089A1
Application number: PCT/EP2012/004046
Authority: WO
Inventors: Thomas Haltmeier; Christine Susanne Junior; Christof Böttcher; Nils VRIELINK
Original assignee: Volkswagen Aktiengesellschaft; Audi Ag
Priority date: 2011-09-30
Filing date: 2012-09-27
Publication date: 2013-04-04
Also published as: DE102012019005A1; DE102012019005B4

Abstract

The invention relates to an air-conditioning arrangement (51) for the thermal conditioning of a motor vehicle (55) which, in particular, has an electric drive (53), having a first circuit (10) which is operated with a heat transport medium (57) and which is driven by a first pump (15), having a second circuit (20) which is operated with the heat transport medium (57) or with a further heat transport medium and which is driven by a second pump (25), having a heat exchanger, in particular a front-end heat exchanger (59), which is connected into the first circuit (10) and by means of which a first heat flow (61) can be transported passively between an ambient air flow (63), which passes from an environment (69) of the motor vehicle (55), and the heat transport medium (57) of the first circuit (10), having a cooling heat exchanger (65) which is connected into the second circuit (20) and by means of which a second heat flow (67) can be transported passively between an interior space air flow (73), which issues into an interior space (71) of the motor vehicle (55) which at least partially delimits the environment (69) of the motor vehicle (55), and the heat transport medium (57) or the further heat transport medium of the second circuit (20). To provide an improved air-conditioning arrangement, the latter has a heat pump (79) which has a warm side (75) connected into the first circuit (10) and a cold side (77) connected into the second circuit (20), by means of which heat pump (79) a third heat flow (81) can be transported actively from the heat transport medium (57) or the further transport medium of the second circuit (20) into the heat transport medium (57) of the first circuit (10) with consumption of energy (83), in particular electrical energy. The heat pump is preferably a Peltier heat pump.

Description

description

Thermal conditioning of a, in particular having an electric drive

motor vehicle

The invention relates to an air conditioning arrangement according to the preamble of claim 1, a method according to the preamble of claim 20 and a method according to and / or according to the motor vehicle.

The thermal conditioning of motor vehicles is known. Such motor vehicles may, for example, have an electric drive, wherein various electrical components of the electric drive are thermally conditioned, for example, cooled or heated. It is known to use a heat transport medium and this by corresponding associated with the electrical components heat exchanger for transmitting corresponding

To conduct heat flows. Corresponding heat can be used for example for heating an interior of the motor vehicle. Moreover, it is known by means of

Air conditioning compressors heat and / or refrigeration for the thermal conditioning of

Electrical components to provide the interior and / or other components of the motor vehicle. DE 10 2005 048 660 A1 discloses an apparatus and a method for regulating the temperature of the passenger compartment of a motor vehicle. This device for thermally regulating the passenger compartment of the motor vehicle comprises a cooling circuit in which a cooling liquid circulates, a secondary circuit in which a heat-transferring liquid circulates, a heat exchanger through which the cooling liquid and the heat-transferring liquid flow, and means for thermal exchange which are traversed by the heat transfer fluid and an air flow intended to heat and cool the passenger compartment of the vehicle. The

heat transfer fluid in the secondary circuit circulates in two opposite directions in the mode of heating the passenger compartment on the one hand and in the mode of cooling the passenger compartment on the other hand. In addition, the means for thermal exchanges comprise at least a whole of two heat exchangers mounted in parallel and each equipped with a flap valve, the flap valves being mounted in anti-parallel to one or the other of the heat exchanger and the cooling mode to supply the passenger compartment. Further air-conditioning arrangements are shown in US 2008 0028768 A1, US 2009 0020620 A1, DE 10 2007 044 466 A1, WO 99 10191 A1, DE 603 03 654 T2, DE 101 54 595 A1 and DE 195 42 125 A1.

CONFIRMATION COPY The object of the invention is to enable an improved thermal conditioning of a motor vehicle having an electric drive.

The object is achieved by an air conditioning arrangement according to the preamble of claim 1 by the characterizing part of claim 1. Advantageously, a Peltier heat pump is provided, which also serves as a heat source and as a heat sink, so that there is a particularly simple construction of the air conditioning arrangement. Advantageously, a heat flow can be actively transported by means of the heat pump. It is understood that the use of other heat pumps instead of a Peltier heat pump are included in the invention. Thus, in general, the heat pump can be defined as a machine that, using engineering, receives thermal energy from a lower temperature reservoir and, together with the drive energy, transfers it as heat to a higher temperature system. Examples of further heat pumps in addition to a Peltier heat pump would be heat pumps, which after the cold steam process,

work magnetocalorically or thermoacoustically. By passive transporting a heat flow, it can be understood that the heat flow along a

Temperature gradient moved on without further action. By actively transporting the heat flow, it can be understood that this is contrary to an existing one

Temperature gradient takes place. This phenomenon occurs in so-called heat pumps, the supply of energy, in this case in particular the electrical energy, the

Drive heat flow against the temperature gradient. The invention is characterized in that a switched into the first circuit hot side and connected to the second circuit cold side heat pump by means of a third heat flow from the heat transfer medium or the other heat transport medium of the second cycle in the heat transport medium of the first cycle under a consumption of particular electrical energy can be actively transported and thus an on-demand temperature control of coupled to the first and second circuit thermal components of the vehicle is possible.

In particular, the invention makes it possible to thermally condition a charger as required and / or to condition electrical components as required and / or to provide a heat exchanger which is as simple as possible, in particular front-end heat exchangers and / or to minimize and / or restrict a flow resistance of corresponding circuits for thermal conditioning by means of a heat transport medium to make do with as few drive pumps for the heat transport medium and / or separate circuits to provide thermal conditioning of electrical components and an interior of the motor vehicle and / or even at relatively high outside temperatures cooling of the electrical components and / or the interior permit and / or in a simple manner a waste heat of a charger for

To warm up a battery to use and / or dissipate either waste heat of the electrical components to an environment of the motor vehicle or in one

Winter operation case to use for warming up the interior of the motor vehicle and / or thermally condition a battery as needed and / or a

Electric machine, a DC-DC converter and a power electronics thermally condition as needed and / or provide a winter to the electrical components additional heat source for heating the interior and / or provide a simply constructed air conditioning arrangement that requires as little heat sources and / / or to provide a flexible as possible controllable and / or controllable air conditioning arrangement. The heat exchanger is designed in particular as a front-end heat exchanger, so that it is exposed by its arrangement in the front end and thus in the front of a direct air flow.

Of course, it is also possible to arrange the heat exchanger at a location other than the front end of a vehicle.

A preferred embodiment of the air conditioning arrangement is designed according to claim 2. Advantageously, a heat flow for heating and / or heating by means of the indoor air flow can be introduced into the interior of the motor vehicle.

Another preferred embodiment of the air conditioning arrangement is according to

Claim 3 formed. Advantageously, by means of the first valve, the first circuit can be switched so that the heat generated by the heat pump either the

Interior is supplied or discharged to the environment. Advantageously can be switched so between a summer and a winter operation.

Claim 4 is formed. Advantageously, a thermal conditioning of the electrical components can take place by means of the electrical component arrangement. This can be the

Electro-component arrangement per electrical component at least one separate

Have heat exchanger, which is traversed by the heat transfer medium. It can, depending on the needs and operating condition of the air conditioning of the respective

Electric component either heat are supplied or removed from it.

Claim 5 is formed. Advantageously, by means of the second circuit the

Electrode assembly can be thermally conditioned. Another preferred embodiment of the air conditioning arrangement is according to

Claim 6 is formed. Advantageously, the electrical component arrangement can be separated from the remaining second circuit by means of the valve. This makes it possible to react to operating conditions in which no thermal conditioning of the

Electrical components is required. Advantageously, a fluid-side resistance of the second circuit can be minimized as needed.

Claim 7 formed. Advantageously, the charger is arranged in the parallel branch. The charger can therefore be conditioned separately by means of the parallel branch, so that this only has to be thermally conditioned in the event that it actually has to be thermally conditioned,

For example, is in a loading operation and must be cooled, can be charged accordingly with the heat transfer medium. Advantageously, this can be selectively distinguished between a charging operation and a driving operation of the motor vehicle, which advantageously results in an optimal flow resistance in each of the two operating states.

Claim 8 is formed. Advantageously, the parallel branch can be separated by means of the valve arrangement. This can advantageously take place in an operating state of the motor vehicle when it is not being charged, that is to say at a standstill and / or during a driving operation. Advantageously, the charger does not have to be removed from the vehicle while driving

Heat transfer medium to be flowed through.

Claim 9 is formed. Advantageously, by means of the valve can be selected whether a waste heat of the electrical component assembly is discharged through the front end heat exchanger in the environment of the motor vehicle or is held in the motor vehicle, for example, to thermally condition the interior or to heat. Advantageously, a waste heat of the electrical component arrangement can be used as needed and optimally. Optionally, by means of the heat pump, a corresponding heat flow, which originates from the electrical component arrangement, are recorded. This can be advantageous in particular if very low temperatures prevail in the surroundings of the motor vehicle.

Claim 10 is formed. Advantageously, only the first in the front end heat exchanger Heat exchanger and a second heat exchanger required. Advantageously, results in a particularly simple front end heat exchanger.

Another preferred embodiment of the air conditioning arrangement is formed according to claim 1 1. Advantageously, the heat exchanger can be selectively controlled by means of the valve. Advantageously, the front-end heat exchanger can thus be used for different tasks, so that it is advantageously used particularly well and no further heat exchanger of the front-end heat exchanger is required.

Another preferred embodiment of the air conditioning arrangement is formed according to claim 12. Advantageously, the third circuit can be controlled by the third pump separately from the first and / or second circuit.

Another preferred embodiment of the air conditioning arrangement is formed according to claim 13. Advantageously, by means of the third circuit the

Electrode arrangement can be controlled separately, in particular, a

Flow rate of the heat transfer medium and thus corresponding heat flows separately by means of the third circuit, in particular by means of a corresponding control of the third pump, are controlled.

Another preferred embodiment of the air conditioning arrangement is formed according to claim 14. Advantageously, the fifth heat flow between the second circuit and the third circuit can be exchanged by means of the water-water heat exchanger. Advantageously, by means of the heat pump provided cooling capacity can be used via the water-water heat exchanger for cooling the electrical components. Advantageously, however, the second and the third circuit are completely separated from each other operable, controllable and / or regulated.

Another preferred embodiment of the air conditioning arrangement is designed according to claim 15. Advantageously, both the second circuit and the third circuit can be supplied with provided by the heat pump cooling capacity. Advantageously, these are equally connected in a common line section, namely the cold side of the heat pump. In this line section are appropriate

Volume flow of the second circuit and the third circuit can be jointly performed so that they mix there, so that there is also a corresponding transmission of heating and / or cooling capacity or a corresponding DC circuit occurs. Another preferred embodiment of the air conditioning arrangement is designed according to claim 16. Advantageously, the second circuit and the third circuit are connected in parallel, wherein advantageously results in a minimum fluid-side resistance of the second circuit and the third circuit. In particular, can be dispensed with the water-water heat exchanger, which represents an additional resistance.

Another preferred embodiment of the air conditioning arrangement is designed according to claim 17. Advantageously, the second circuit and the third circuit can be operated with the common heat transport medium, so they are associated with each other on the fluid side. This results in an advantageous low fluid-side resistance in the operation of the second and third circuit.

Another preferred embodiment of the air conditioning arrangement is designed according to claim 18. Advantageously, the third circuit can optionally be switched so that it passes through the cold side of the Peltier pump or not. Advantageously, it can thus be selected whether the switched in the third circuit electrical component assembly is to be cooled by the heat pump or not. Advantageously, the maximum flow rate of the heat pump is optionally completely the second cycle, so the interior of the motor vehicle available. Advantageously, a fluid-side resistance of the air-conditioning arrangement can thereby be optimized as needed.

Another preferred embodiment of the air conditioning arrangement is designed according to claim 19. Advantageously, the third heat flow is exchanged either only with the second circuit, so that the second circuit can deliver a maximum amount of heat or optionally together with the third circuit, so that advantageously a portion of the second and third circuit withdrawn amount of heat for cooling the

Electrical components can be used.

The object is also achieved in a method according to the preamble of claim 20 by the characterizing part of claim 20. The method is carried out in particular by means of a previously described air conditioning arrangement. This results in the advantages described above.

The object is also achieved by a motor vehicle with a previously described

Air conditioning arrangement and / or set up, designed, constructed and / or equipped with software for performing a method described above solved. This results in the advantages described above. Further advantages, features and details emerge from the following description in which an exemplary embodiment is described with reference to the drawing. Same, similar and / or functionally identical parts are the same

Provided with reference numerals.

Show it:

1 shows a particularly preferred embodiment of an air conditioning system for thermally conditioning a motor vehicle having an electric drive;

Figure 2 shows another air conditioning arrangement similar to that shown in Figure 1, wherein a

Water-water heat exchanger is provided;

FIG. 3 shows a further air conditioning arrangement similar to that in FIGS. 1 and 2

shown, in contrast, only two circuits are provided; and

FIG. 4 shows a further air-conditioning arrangement similar to that shown in FIGS. 1-3, with the difference being that a compact electrical component arrangement is provided; and

FIG. 5 shows a detailed view of the compact electrical component arrangement shown in FIG. 4; and

FIG. 6 shows a detailed view of an electrical component arrangement shown in FIG. 3 with an additional parallel branch, wherein the parallel branch has a charger and

FIG. 7 shows a further air-conditioning arrangement similar to that shown in FIG.

reduced number of branches and valves;

FIG. 1 shows a preferred exemplary embodiment of an air-conditioning arrangement 51 for thermally conditioning a motor vehicle 55 having an electric drive 53. The electric drive 53 is shown only schematically in FIG. 1 and has an electric motor 45. The motor vehicle 55 is also shown only partially in FIG.

The air conditioning arrangement 51 shown in FIG. 1 has a first circuit 10. The first circuit 10 is operated with a heat transport medium 57, wherein a first Pump 15 ensures the drive or a circulation of the heat transfer medium 57.

In addition, the air-conditioning arrangement 51 has a second circuit 20. The second circuit 20 is also operated by means of the heat transfer medium 57. Alternatively or additionally, this can also be operated with a further heat transport medium. A heat transport medium may, in particular, be understood as meaning a liquid, for example oil, water and / or the like. The second circuit 20 is driven by a second pump 25.

In the first circuit 10, a front-end heat exchanger 59 is connected. The front-end heat exchanger 59 is flowed through by an ambient air stream 63. For this purpose, a fan may be provided, which is not shown in detail in FIG. The ambient air stream 63 originates from an environment 69 surrounding the motor vehicle 55.

The front-end heat exchanger 59 has a first heat exchanger 93, which is also connected in the first circuit 10. Between the first heat exchanger 93 of the front-end heat exchanger 59 and the ambient air stream 63, a first heat flow 61 can be exchanged.

In the second circuit 20, a cooling heat exchanger 65 is connected. Of the

Cooling heat exchanger 65 is associated with an interior 71 of the motor vehicle 55. The interior 71, the interior of the motor vehicle 55, is delimited from the environment 69. Into the interior 71 opens an indoor air flow 73, which is guided through the cooling heat exchanger 65 and / or can be guided. Between the indoor air flow 73 and the

Cooling heat exchanger 65, a second heat flow 67 can be replaced. As a result, the interior 71 of the motor vehicle 55 can advantageously be cooled.

The first heat flow 61 and the second heat flow 67 are passive, ie driven in the direction of a temperature gradient.

The air conditioning arrangement 51 shown in FIG. 1 advantageously has a Peltier heat pump 79, although other heat pumps can also be used. The Peltier heat pump 79 has a cold side 77 and a warm side 75. Advantageously, a third heat flow 81 can be transported from the cold side 77 to the hot side 75 of the Peltier heat pump 79 while supplying electrical energy 83 against an energy gradient existing between the cold side 77 and the hot side 75. Advantageously, therefore, the third heat flow 81 be transported or pumped from the colder second circuit 20 in the warmer first circuit 10.

In the first circuit 10, a heating heat exchanger 85 is connected. By means of the

Heating heat exchanger 85, a fourth heat flow 87 with the indoor air flow 63 are exchanged. Corresponding heat can be pumped from the hot side 75 of the Peltier heat pump 79 coming through the heating heat exchanger 85, so that advantageously thereby the interior 71 of the motor vehicle 55 can be heated.

The air conditioning arrangement 51 shown in FIG. 1 has an electrical component arrangement 40.

The electrical component assembly 40 includes a DC-DC converter 41, power electronics 43, the electric machine 45, a charger 47, and a high-voltage battery 49. The high-voltage battery 49, which may also be referred to as a traction battery, serves to provide drive energy for driving the motor vehicle 55 by means of the

Electric drive 53. The DC-DC converter 41 is used to provide a vehicle electrical system voltage. The power electronics 43 is used to control accordingly

Energy flows. The charger 47 serves to charge the high-voltage battery 49 to a not belonging to the motor vehicle 55 power grid. The electrical component arrangement 40 is connected in a third circuit 30. The third circuit 30 is also with the

Heat transport medium 57 operated and driven by a third pump 35. The second circuit 20 and the third circuit 30 are connected in parallel and are operated with a common heat transport medium 57. For this purpose, the second circuit 20 and the third circuit 30 are guided together in a common line section through the cold side 77 of the Peltier heat pump 79.

In the third circuit 30, a third heat exchanger 97 of the front-end heat exchanger 59 is connected. In the second circuit 20, a second heat exchanger 95 of the front-end heat exchanger 59 is connected.

The front-end heat exchanger 59 may be a heat exchanger arranged on a front of the motor vehicle 55, the front-end heat exchanger 59

optionally passively by means of a wind from the ambient air flow 63 is flowed through. Alternatively or additionally, the ambient air stream 63 by means of a blower, which is not shown in detail in Figure 1, are driven. The first circuit 10 has the first pump 15 connected downstream of a first valve 1. This is designed as spring-reset, electromagnetically operated 3/2-way valve. In a first branch of the first valve 1, the heating heat exchanger 85 is connected downstream. The heating heat exchanger 85, the hot side 75 of the Peltier heat pump 79 is connected downstream. The hot side 75 of the Peltier heat pump 79 in turn is the first pump 15th

downstream. In a further branch of the first circuit 10, the first part 1 of the first partial heat exchanger 93 of the front-end heat exchanger 59 is connected downstream. The first heat exchanger 93 of the front-end heat exchanger 59, the hot side 75 of the Peltier heat pump 79 is connected downstream.

The second pump 25 of the second circuit 20 is the common line piece and with this the cold side 77 of the Peltier heat pump 79 downstream. Following the second circuit 20 further, a second valve 2 is connected in the second circuit 20 via a branch of the cold side 77 of the Peltier heat pump 79. The second valve of the second circuit 20 is designed as a spring-reset, electromagnetically adjustable 3/2-way valve. In a first branch is the second valve 2 of the second circuit 20 of the

Cooling heat exchanger 65 downstream. The cooling heat exchanger 65 of the second circuit 20, the second pump 25 of the second circuit 20 is connected downstream. In a further branch of the second circuit 20 of the second valve 2 of the second circuit 20 of the second heat exchanger 95 of the front-end heat exchanger 59 is connected downstream. This, in turn, the second pump 25 of the second circuit 20 is connected downstream. Depending on a switching position of the second valve 2, therefore, one of the cold side 77 of the Peltier heat pump 79 forthcoming volume flow of the second circuit 20 selectively through the second heat exchanger 95 of the front-end heat exchanger 59 or through the

Cooling heat exchanger 65 are performed.

The third pump 35 of the third circuit 30 is an eighth valve 8 downstream. The eighth valve 8 is designed as a spring-reset, electromagnetically adjustable 3/2-way valve. In a first branch the eighth valve 8 of the third circuit 30, the cold side 77 of the Peltier heat pump 79 is connected downstream. As a result, advantageously, the second circuit 20 and the third circuit 30 are connected in parallel or in the common

Line section of the cold side 77 of the Peltier heat pump 79 together feasible. At the cold side 77 of the Peltier heat pump 79 downstream branch, the second circuit 20 and the third circuit 30 separate again, the third circuit 30 branches off in the direction of the electrical component assembly 40. Downstream of this branch, a junction is arranged, this junction being connected downstream of the eighth valve 8 of the third circuit 30. Thus, the eighth valve 8 of the third circuit 30 in a further branch, the electric component assembly 40 is connected downstream.

The electrical component assembly 40 is part of the third circuit 30 and has a

Valve assembly 91 on. The valve arrangement 91 has a third valve 3, a fourth valve 4, a fifth valve 5 and a sixth valve 6. The valves 3 - 6 are each as

spring-return, electromagnetically adjustable 2/2-way valves or

Switching valves executed. The electrical component arrangement 40 has a parallel branch 89. In the parallel branch 89, the charger 47 is connected. Advantageously, the charger 47 can be switched into the third circuit 30 by means of the valve assembly 91 as needed or be switched out of this.

The third valve 3 is arranged in a further parallel branch of the electrical component arrangement 40 and is connected upstream of the DC-DC converter 41. In addition, the power electronics 43 and the electric machine 45 are connected downstream of the DC-DC converter in the further parallel branch. The high-voltage battery 49 is connected in a battery parallel branch of the electrical component arrangement 40. Parallel to the high-voltage battery 49, the sixth valve 6 is connected. Advantageously, so by means of

Valve assembly 91, the high-voltage battery 49, if necessary, in the third circuit 30th

be switched into or out of this.

Advantageously, the further parallel branch, which has the DC-DC converter 41, the power electronics 43 and the electric motor 45, by means of the third valve 3, if necessary, be switched into the third circuit 30 or switched out of this. A triple-confluence parts of the electrical component assembly 40, the electrical component assembly 40 downstream of a seventh valve 7 in the third circuit 30 is provided. The seventh valve 7 is designed as a spring-reset, electromagnetically adjustable 3/2 way valve. In a first branch of the seventh valve 7 of the third circuit 30, the third pump 35 is connected directly downstream. In a further branch of the seventh valve 7, the third heat exchanger 97 of the front-end heat exchanger 59 is connected downstream. The third heat exchanger 97 of the third circuit 30, the third pump 35 of the third circuit 30 is connected downstream.

Advantageously, in particular by a corresponding activation of the second pump 25 and the third pump 35, the second circuit 20 and the third circuit 30 can be controlled and / or regulated separately. Advantageously results in an optimal fluid side

Resistance, so that the second circuit 20 and the third circuit 30 especially

energy-efficient by means of the second pump 25 and the third pump 35 are driven can. Overall, the second pump 25 and the third pump 35 can be made comparatively small. At an input of the Peltier heat pump 79, the second circuit 20 and the third circuit 30 are brought together. At an output of the Peltier heat pump 79, the second circuit 20 and the third circuit 30 are again brought apart.

In an operating mode of active cooling of the interior 71 of the motor vehicle 55 and the electrical components of the electric drive 53 and the Elektrokomponenten- arrangement 40, the first valve 1 is switched so that of the first circuit 10 the

Warm side 75 of the Peltier heat pump 79 and this downstream of the first heat exchanger 93 of the front-end heat exchanger 59 are flowed through. Advantageously, heat pumped by the Peltier heat pump 79, ie, the third heat flow 81, by means of the first heat flow 61 to the ambient air flow 63 and thus to the environment 69 of

Motor vehicle 55 are delivered. A corresponding heat transfer takes place via the heat transfer medium 57 circulating in the first circuit 10 by means of the first pump 15.

In addition, in this mode of operation of the second circuit 20 coming from the second pump 25, via the cold side 77 of the Peltier heat pump 79, this downstream via the second valve 2, this downstream via the cooling heat exchanger 65 and this downstream again back to the second pump 25th guided.

The third circuit 30 is downstream of the third pump 35 via the eighth valve 8, this downstream via the cold side 77 of the Peltier heat pump 79, this downstream via the third valve 3, this downstream in the DC-DC converter 41, this downstream via the power electronics 43, this downstream via the electric motor 45 of the electric drive 53, this downstream via the seventh valve 7, this

downstream through the third heat exchanger 97 and finally back to the third pump 35. This operating mode can be adjusted in a summer operation, ie at relatively high temperatures in the environment 69 of the motor vehicle 55.

Active cooling of the interior 71 and passive cooling via the electrical component arrangement 40 can also take place in a summer mode.

In this second operating mode, the first circuit 10 is switched in the same way as in the operating mode described above. Reference is made to this description. In addition, in the second operation mode, the second circuit 20 is switched as in the above-described operation mode. Reference is made to this description. In contrast to the previous operating mode, in the second operating mode, the third circuit 30 is starting from the third pump 35 via the eighth valve 8, this

connected downstream via the open third valve 3, this downstream via the DC-DC converter 41, the power electronics 43, the electric machine 45, via the triple junction, via the seventh valve 7 and this downstream via the third heat exchanger 97 of the front-end heat exchanger 59th and finally switched back to the third pump 35 from this. Advantageously, therefore, the third circuit 30 is not connected via the cold side 77 of the Peltier heat pump 79. For this purpose, the second valve 2 of the second circuit 20 has a corresponding switching position. Advantageously, however, a passive cooling of the third valve 3 downstream electrical components of

Electric component assembly 40 done. The fourth valve 4, the fifth valve 5 and the sixth valve 6 of the valve arrangement 91 of the electrical component arrangement 40 are closed in this second operating mode.

In a third operating mode, heating of the interior 71 of the motor vehicle 55 can take place with waste heat utilization of the electrical components of the electrical component arrangement 40. Advantageously, therefore, a waste heat generated by means of the electrical components can be used to heat the interior 71. Advantageously, such a current drain for heating the interior 71 from the high-voltage battery 49 is minimized.

In the third operating mode, the first circuit 10 is connected, starting from the first pump 15, via the first valve 1, the heating heat exchanger 85, the warm side 75 of the Peltier heat pump 79 and from this back to the first pump 15.

The second circuit 20 is connected in the third operating mode, starting from the second pump 25 via the cold side 77 of the Peltier heat pump 79, via the second valve 2 and finally via the second heat exchanger 95 of the second circuit 20 back to the second pump 25.

The third circuit 30 is downstream of the third pump 35 via the eighth valve 8, the cold side 77 of the Peltier heat pump 79 via the junction, via the third valve 3, the DC-DC converter 41, the power electronics 43, the electric motor 45, the triple confluence point and finally switched back to the third pump 35 via the seventh valve 7. Advantageously, the waste heat from the electrical component arrangement 40 can be introduced into the cold side 77 of the Peltier heat pump 79, the Peltier heat pump 79 introducing it at a higher temperature level than the first Circuit 10 for heating the interior 71 can provide. Advantageously, the waste heat can be tapped at a comparatively low temperature level of the cold side 77 and used accordingly. Advantageously, this results in a thermodynamically good efficiency of the electrical component assembly 40.

In a fourth mode of operation, a dehumidification of the interior 71 in a

so-called reheat operation. A reheat operation can be understood as meaning that the interior airflow 73 that flows into the interior 71 first of all flows by means of the

Cooling heat exchanger 65 is cooled to then by means of

Heating heat exchanger 85 to be reheated. It falls below the

Interior air flow 73 first at the cooling heat exchanger 65 a dew point, so that condensation water precipitates and thus the beneficial dehumidification of the interior 71 can take place.

In this fourth operating mode, the first circuit 10 is switched in the same way as in the third operating mode. In this respect, reference is made to the description of the first circuit 10 in the third operating mode.

The second circuit 20 and the second valve 2 is in the fourth

Operating mode switched the same as in the first operating mode and in the second operating mode. In this respect, reference is made to the description of the first and second operating modes.

In addition, in the fourth operating mode, the third circuit 30 is turned off. In this case, the third pump 35 without delivery.

Advantageously, in the fourth operating mode, the third heat flow 81 generated by means of the Peltier heat pump 79 can be completely removed from the cooling heat exchanger 65 and then made available again to the heating heat exchanger 85, so that the dehumidification described above can take place.

In a fifth operating mode can simultaneously dehumidify the interior 71 in the so-called reheat operation and a cooling and / or waste heat utilization of

Electrical components of the electrical component assembly 40 done. In this case, the first circuit 10 and the second circuit 20 are connected in the same way as in the fourth operating mode. In this respect, reference is made to the description of the fourth mode of operation. As a difference, in the fifth mode of operation, the third pump 35 of the third circuit 30 is turned on. In this case, the third circuit 30 is connected in the same way as in the winter operation of the third operating mode. Reference is made in this regard to the description of the third mode of operation. In a sixth operating mode of the air-conditioning arrangement 51 shown in FIG. 1, a purely passive cooling of the electrical components of the electrical component arrangement 40 can advantageously take place. In this case, the first circuit 10 and the second circuit 20 are switched off, that is, the first pump 15 and the second pump 25 without delivery.

The third circuit 30 is bypassed, bypassing the cold side 77 of the Peltier heat pump 79 is switched to the same as in the second operating mode. In this respect, reference is made to the description of the second operating mode with respect to the third circuit 30.

In a seventh operating mode of the air conditioning arrangement 51 shown in FIG. 1, a pre-conditioning of the high-voltage battery 49 during a mains charging operation can take place using a heat loss of the charging device 47 in a winter operation. In this seventh operating mode, the first circuit 10 and the second circuit 20 are switched off, that is, the first pump 15 and the second pump 25 without delivery. The third circuit 30 is starting from the third pump 35 via the eighth valve 8, the charger 47 of the electrical component assembly 40, the fifth valve 5, the high-voltage battery 49, the triple junction point and finally on the seventh valve 7 back connected to the third pump 35. For this purpose, the fifth valve 5 of the valve assembly 91 of

Electric component assembly 40 opened. The remaining valves, ie the third valve 3, the fourth valve 4 and the sixth valve 6 are closed in this seventh operating mode. It can be seen that, advantageously, first the charging device 47 is flowed through by the heat transport medium 57. This absorbed waste heat can be beneficial to the thermal

Conditioning the high-voltage battery 49 can be used in the winter operation of the seventh mode of operation. This can be useful in a winter operation, ie at relatively low temperatures in the environment 69 of the motor vehicle 55 advantageous.

At high temperatures, ie a summer operation, advantageously in an eighth operating mode, a passive cooling of the high-voltage battery 49 and the charger 47 can take place during a mains charging operation. A corresponding heat release can advantageously take place via the third heat exchanger 97 of the front-end heat exchanger 59 to the surroundings 69 of the motor vehicle 55.

In the eighth mode of operation, the first circuit 10 and the second circuit 20 are also turned off. The third circuit 30 is starting from the third pump 35 via the eighth valve 8 via the charger 47 and this downstream of the sixth valve 6 and the charger 47 and the sixth valve 6 connected in parallel via the fourth valve 4 and the high-voltage battery 49, via the triple junction parts, via the seventh valve 7 and finally via the third heat exchanger 97 of the front-end heat exchanger 59 again switched back to the third pump 35. Advantageously, the heat transport medium 57 is guided in parallel via the parallel branch 89 and the further parallel branch through the charger 47 and the high-voltage battery 49. Thus, a heat flow can be dissipated both from the charger 47 and from the high-voltage battery 49 and dissipated by the third heat exchanger 97 of the front-end heat exchanger 59 via the ambient air stream 63 to the environment 69 of the motor vehicle 55. For this purpose, the third valve 3 and the fifth valve 5 are closed. The remaining valves of the valve assembly 91, so the fourth valve 4 and the sixth valve 6 are open.

In a ninth operating mode, which can also be advantageously used in a summer operation, active cooling of the high-voltage battery 49 and the charger 47 can take place. In this case, the Peltier heat pump 79 is energized by means of electrical energy 83, so it can pump a heat flow into the first circuit 10. For this purpose, the first circuit 10 is switched as in the first and second operating modes. In this respect, reference is made to the description of the first and second operating modes.

The third circuit 30 is identical except for a switching position of the eighth valve 8 as in the eighth operating mode. In this respect, the description of the eighth

Operating mode referenced. The only difference is the third circuit 30 is guided over the cold side 77 of the Peltier heat pump 79, so that the active cooling can take place. Specifically, the third circuit 30 is starting from the third pump 35 via the eighth valve 8, the

Cold side 77 of the Peltier heat pump 79, the electrical component assembly 40 as described above, the seventh valve 7, the third heat exchanger 97 of the front-end heat exchanger 59 and finally switched from this back to the third pump 35.

The air conditioning assembly 51 shown in Figure 1 has a total of eight valves, namely the first valve 1, the second valve 2, the third valve 3, the fourth valve 4, the fifth valve 5, the sixth valve 6, the seventh valve 7 and the eighth valve 8. This results in a total of 256 theoretical switching states. The description of the operating modes 1 - 9 described above is therefore exemplary. Made up of a total of 8 valves, each two

Have switching positions, resulting switching states are also part of the

Invention, in particular combinations of the described operating conditions 1 - 9 can be combined to form new embodiments. Advantageously, the

Air conditioning assembly 51 to a variety of requirements by means of corresponding switching positions of the valves 1 - 8 are adjusted. This can be done actively or passively, that is to say with an energization of the Peltier heat pump 79 with the electrical energy 83 or not. Advantageously, the Peltier heat pump 79 is provided as the only source of heat and cold. Advantageously, the air-conditioning arrangement 51 comes without further heat sources, such as an electric PTC heater or the like. The air conditioning arrangement 51 shown in FIG. 1 is therefore designed to be heaterless.

In addition, the air conditioning assembly 51 shown in Figure 1 does not require one

Air conditioning compressor, so it is designed climate compressor.

FIG. 2 shows a further air conditioning arrangement 51 similar to the air conditioning arrangement 51 shown in FIG. In the following, only the differences are discussed. In contrast, the air conditioning arrangement shown in Figure 2 51 only seven valves, namely the first to seventh valve 1 - 7. Instead of the eighth valve 8, the

2, a water-water heat exchanger 99, by means of which a heat flow between the third circuit 30 and the second circuit 20 is interchangeable. More specifically, from the electrical component assembly 40 to the

Heat transfer medium 57 of the third circuit 30 transmitted heat in the form of a fifth heat flow 101 by means of the water-water heat exchanger 99 on the

Heat transfer medium 57 of the second circuit 20 are transmitted.

Advantageously, the first circuit 10, the second circuit 20 and the third circuit 30 can also be controlled separately. As a further difference, the second circuit 20 and the third circuit 30 are completely separated from one another on the fluid side, so that they can also be operated by means of different heat transport media 57. The second circuit 20 and the third circuit 30 are therefore not fluidly and thermally associated with each other in difference, but only thermally associated with each other by means of the water-water heat exchanger 99 through which the fifth heat flow 101 is feasible. The fifth heat flow 101 is also passively driven by means of a heat gradient between the third circuit 30 and the second circuit 20. Via the water-water heat exchanger 99, the third circuit 30, which has the electrical component arrangement 40, can be coupled to the Peltier heat pump 79 for waste heat utilization and / or for active cooling of the E components. This interconnection has the advantage that a mass flow of

Heat transport medium 57 via the electrical components or the

Electro-component arrangement 40 can be set independently, which is advantageous in terms of reliability. Furthermore, there is a comparatively short

Line length and thus a comparatively low pressure loss, the second pump 25 and the third pump 35 can be dimensioned comparatively small.

The air conditioning assembly 51 shown in Figure 2 has the total of seven valves, each of which can assume two switching positions. Consequently, a total of 128 operating modes result, of which four are described in more detail below by way of example. In a first mode of operation, which may be used for cooling the interior 71 and the electrical components of the electrical component assembly 40 in a summer operation, the first circuit 10 extends from the first pump 15 via the first valve 1, the first heat exchanger 93 of the front end Finally, the second circuit 20 extends from the second pump 25 through the second valve 2, the cooling heat exchanger 65, the water-water heat exchanger 99 and finally on the cold side 77 of the Peltier heat pump 79 back to the second pump 25 back.

The third circuit 30 extends from the third pump 35 via the third. Valve 3, the DC-DC converter 41, the power electronics 43, the electric machine 45, the seventh valve 7, the third heat exchanger 97 of the front-end heat exchanger 59 and finally via the water-water heat exchanger 99 back to the third pump 35th Advantageously, by means of the Peltier heat pump 79 provided cold can be used on the one hand via the water-water heat exchanger 99 for cooling the electrical components and the cooling heat exchanger 65 for cooling the interior 71.

In a second mode of operation, the air conditioning assembly 51 may be used in a winter operation to heat the interior 71 with waste heat utilization of the electrocomponent assembly 40. The first circuit 10 runs starting from the first pump 15 via the first valve 1, the heater core 85 and finally via the hot side 75 of the Peltier heat pump 79 back to the first pump 15th

The cooling heat exchanger 65 and the heating heat exchanger 85 are part of the interior 71 of the motor vehicle 55 associated air conditioner. To drive the

Indoor airflow 73, the air conditioner may have a separate blower. In addition, the air conditioner may have a recirculation damper, by means of the optional

Indoor airflow 73 can be sucked from the interior 71 or from the environment 69. In any case, the indoor air flow 73 for air conditioning of the interior opens into the interior 71st

The second circuit 20 runs in the second operating mode, starting from the second pump 25 via the second valve 2, the second heat exchanger 95 of the front-end heat exchanger 59, the cooling heat exchanger 65 of the air conditioner, the water-water heat exchanger 99 and finally on the Cold side 77 of the Peltier heat pump 79 back to the second pump 25th The third circuit 30 extends from the third pump 35 via the third valve 3 of the valve assembly 91 of the electrical component assembly 40, the DC-DC converter 41, the power electronics 43, the electric machine 45, the seventh valve 7 and finally via the water -Water heat exchanger 99 back to the third pump 35th

A third operating mode of the air-conditioning arrangement 51 shown in FIG. 2 can be used for dehumidifying the interior 71 in the reheat mode and for cooling or using waste heat of the electrical components by means of the electro-component arrangement 40. The first circuit 10 is connected as in the second

Operation mode. In this respect, reference is made to the description of the second operating mode.

The second circuit 20 is in the third ^'operating mode switched as in the first operation mode. In this respect, reference is made to the description of the first operating mode.

The third circuit 30 is switched in the third operating mode as in the second

Operation mode. In this respect, reference is made to the description of the second operating mode. Advantageously, by means of the Peltier heat pump 79, a temperature difference between the cooling heat exchanger 65 and the heating heat exchanger 85 can be adjusted, so that it comes to the advantageous dehumidification of the indoor air flow 73. Advantageously, cooling or utilization of waste heat of the electrical components can take place. A corresponding heat flow can be transmitted via the water-water heat exchanger 99.

In a fourth operating mode of the air-conditioning arrangement 51 shown in FIG. 2, a pre-conditioning of the high-voltage battery 49 during a mains charging operation can take place using a heat loss of the charger 47. The fourth operating mode can be used for winter operation, ie for low temperatures in the surroundings 69 of the motor vehicle 55.

In the fourth operating mode, the first circuit 10 and the second circuit 20 are switched off, that is, the first pump 15 and the second pump 25 without delivery.

The third circuit 30 is switched as in the seventh operating mode of the air-conditioning arrangement 51 shown in FIG. 1. In this respect, with regard to the switching position of the third circuit 30, the description of the seventh operating mode is shown in FIG

Air conditioning arrangement 51 referenced. Advantageously, a waste heat of the charger 47 can be used for preconditioning the high-voltage battery 49. FIG. 3 shows a further exemplary embodiment of an air-conditioning arrangement 51 of a motor vehicle 55 with an electric drive 53. The system shown in FIG

Air conditioning assembly 51 is similar to that shown in FIGS. 1 and 2

Air conditioning arrangement 51 constructed. In the following, only the differences are discussed.

In contrast to the representation according to FIGS. 1 and 2, the air-conditioning arrangement 51 according to FIG. 3 has only a first circuit 10 and a second circuit 20, which are driven by a first pump 15 and a second pump 25. Advantageously, the third circuit 30 and the third pump 35 can be dispensed with. Nevertheless, the

Electrode assembly 40 to provide the heat transport medium 57 optional, the air conditioning assembly 51 according to Figure 3, a tenth valve 100 on. The tenth valve 100 is connected to the second circuit 20 downstream of the cooling heat exchanger 65. In a first switching position, which is shown in Figure 3, the tenth valve 100, the cold side 77 of the Peltier heat pump 79 is connected downstream. In a second switching position, the tenth valve 10 is the electro-component arrangement 40

downstream.

In addition, the air conditioning arrangement 51 according to FIG. 3 advantageously has a simplified front-end heat exchanger 59. Namely, the front end heat exchanger 59 according to FIG. 3 has only the first heat exchanger 93 and the second heat exchanger 95. Advantageously, the third heat exchanger 97 can be dispensed with. In order to achieve this, the air-conditioning arrangement 51 according to FIG. 3 has a ninth valve 9. The ninth valve 9 is connected downstream of the second heat exchanger 95 of the front-end heat exchanger 59 and is part of the second circuit 20. In a first switching position of the ninth valve 9, which is shown in Figure 3, the ninth valve 9, the cooling heat exchanger 65 is connected downstream. In a second switching position, the ninth valve 9, the hot side 75 of the Peltier heat pump 79 is connected downstream. The Peltier heat pump 79 is twice the heat transfer medium 57, so flowed through by the first circuit 10 and the second circuit 20 and can also be referred to as Peltier water-water heat exchanger.

The first valve 1, the second valve 2, the ninth valve 9 and the tenth valve 100 are each designed as a spring-reset, electromagnetically actuated 3/2-way valve.

Advantageously, by means of the wiring of the second heat exchanger 95 of the front-end heat exchanger 59 by means of the ninth valve 9 of this for a variety of

Operating conditions are used, so that another, for example, the third

Heat exchanger 97 is dispensable. Optionally, with the ambient air stream 63 Heat to be exchanged can optionally be exchanged with different components of the second circuit 20, in particular with the Peltier heat pump 79, the cooling heat exchanger 65 and / or the electrical component arrangement 40.

The air conditioning assembly 51 shown in Figure 3 has a total of nine valves, namely the first to seventh valve 1-7 and the ninth valve 9 and the tenth valve 100. These have two switching positions, so that a total of 512 different

Switching states result. These 512 switching states are part of the invention, with 7 particularly preferred operating states being explained in more detail below.

In a first operating state, the first circuit 10 is switched as in the first

In this respect, reference is made to the description of the first circuit 10 of the first operating mode of the air conditioning arrangement 51 shown in FIG. 2 for the first operating state of the air conditioning arrangement 51 shown in FIG.

In the first operating state of the air-conditioning arrangement 51 shown in FIG. 3, the second circuit 20 is returned from the second pump 25 via the second valve 2, the cooling heat exchanger 65, the tenth valve 100 and finally via the cold side 77 of the Peltier heat pump 79 second pump 25 out. This first

Operating state can be used advantageously for cooling the interior 71 of the motor vehicle 55. Advantageously, the second heat flow 67 can be withdrawn from the interior airflow 73, which in turn can be pumped from the cold side 77 to the warm side 75 as a third heat flow 81 by means of the Peltier heat pump 79. By means of the first circuit 10, this can then be delivered in the form of the first heat flow 61 to the ambient air stream 63 and thus to the environment 69 of the motor vehicle 55.

In a second operating state of the air conditioning arrangement 51 shown in FIG. 3, cooling of the electrical components by means of the electric component arrangement 40 and cooling of the interior 71 can take place. The first circuit 10 is connected as in the first operating state. In this respect, reference is made to the description of the first operating state.

The second circuit 20 proceeds in the second operating state, starting from the second pump 25 via the second valve 2, via the cooling heat exchanger 65, via the tenth valve 100, in all three parallel branches via the electrical component arrangement 40, via the seventh valve 7 the second heat exchanger 95 of the front-end heat exchanger 59, via the ninth valve 9 and finally on the cold side 77 of the Peltier heat pump 79 again back to the second pump 25. Advantageously, can be done in a series circuit, the cooling of the interior 71 and the electrical components. The still comparatively cool flowing out of the cooling heat exchanger 65 heat transport medium 57 can be advantageously used for cooling the electrical components by means of the electric component assembly 40. After this twofold increase in temperature, heat can be dissipated to the ambient air stream 63. The thus pre-cooled heat transfer medium can then be advantageously brought back on the cold side 77 of the Peltier heat pump 79 back to a necessary for cooling the interior 71 low temperature level.

In a third operating state, the air-conditioning arrangement 51 shown in FIG. 3 can be used for dehumidifying the interior 71. In this third operating state, the second circuit 20 is connected in the same way as in the first operating state. In this respect, reference is made to the description of the first operating state.

The first circuit 10 is thus switched as in the first operating mode of the air-conditioning arrangement 51 shown in FIG. 1. In this respect, with regard to the third operating state, the air-conditioning arrangement 51 shown in FIG. 3 with respect to the switching state of the first circuit 10 is described in the description of the first operating state of FIG Air conditioning 51 assignment referenced.

Advantageously, as described above, the dehumidification of the interior 71 of the

Motor vehicle 55 done.

A fourth operating state can equally be used for the dehumidification of the interior 71 with simultaneous cooling or waste heat utilization of the electrical components by means of the electrical component arrangement 40. In this case, the first circuit 10 is connected in the same way as in the third operating state. In this respect, the description of the first circuit 10 in the third operating state of that shown in FIG

Air conditioning arrangement 51 referenced.

The second circuit 20 extends in the fourth operating state, starting from the second pump 25 via the cooling heat exchanger 65, via the tenth valve 100, via the

Electric component assembly 40, via the seventh valve 7 and finally via the cold side 77 of the Peltier heat pump 79 back to the second pump 25th

In a fifth operating state, the interior 71 can be heated, in particular by means of ambient heat. In this case, the first circuit 10 is connected as in the third and fourth operating state. In this respect, the description of the third and fourth Operating state referenced. The second circuit 20 extends from the second pump 25 via the second valve 2, the second heat exchanger 95 of the front-end heat exchanger 59, the ninth valve 9, the cooling heat exchanger 65, the tenth valve 100 and finally via the cold side 77 of the Peltier heat pump 79 back to the second pump 25.

In a sixth operating state, the air-conditioning arrangement 51 illustrated in FIG. 3 can be used for heating the interior 71 with ambient heat and waste heat utilization of the electrical components. In this sixth operating state, the first circuit 10 is switched in the same way as in the third operating state. Insofar is on the

Description of the third operating state referenced.

The second circuit 20 extends in the sixth operating state, starting from the second pump 25 via the second valve 2, the second heat exchanger 95 of the front-end heat exchanger 59, the cooling heat exchanger 65, the tenth valve 100, the

Electro-component arrangement 40, the seventh valve 7, and finally on the cold side 77 of the Peltier heat pump 79 back to the second pump 25. Advantageously, can be added to heat the Peltier heat pump 79 by means of the second heat exchanger 95 and by means of the cooling heat exchanger 65 ambient heat , This can advantageously be pumped to heat the interior by means of the heating heat exchanger 85 by means of the Peltier heat pump 79 in the first circuit 10.

In a seventh operating condition, the air conditioning assembly 51 shown in FIG. 3 may be used to actively condition the electrical components during a power-up phase. Alternatively, if necessary, heating of the electrical components is also possible. Alternatively, if necessary, a preconditioning of the interior 71 is conceivable.

In this seventh operating state, the first circuit 10, starting from the first pump 15, is guided back to the first pump 15 via the first valve 1, the first heat exchanger 93 of the front-end heat exchanger 59 and finally via the hot side 75 of the Peltier heat pump 79. Depending on an ambient temperature level of the surroundings 69 of the motor vehicle 55, the switching position of the first valve 1 can optionally be changed.

The second circuit 20 is switched to be the same in the seventh operating state as in the fourth operating state. In this respect, reference is made to the description of the fourth operating state. If appropriate, the seventh valve 7 can be switched over differently depending on an ambient temperature level, so that the second heat exchanger 95 of the front-end heat exchanger 59 is connected in the second circuit 20.

Advantageously, the air conditioning assembly 51 shown in FIG. 3 as well as the air conditioning assembly 51 shown in FIGS. 1 and 2 may be used to separately condition the charger 47 and the high voltage battery 49. Advantageously, the charger 47 can be switched out of the second circuit 20 during a driving state of the motor vehicle 55 by means of the parallel branch 89, so that pressure losses can be advantageously eliminated by the charger 47 during driving, since the charger 47 is operated only during the mains charging operation and accordingly only during this time must be thermally conditioned.

In the air conditioning arrangement 51 according to FIG. 3, the ninth valve 9 is advantageous

provided, which is designed as a 3/2-way valve. Advantageously, the front-end heat exchanger 59 can thus be constructed particularly simply, namely only by means of the first heat exchanger 93 and second heat exchanger 95. Advantageously, therefore, the second circuit 20 has only the second heat exchanger 95, since in all operating conditions, if necessary, by means of a corresponding switching position of the ninth Valve 9, the second heat exchanger 95 can be used to exchange heat with the environment 69.

FIG. 4 shows a further exemplary embodiment of an air conditioning arrangement 51 similar to the air conditioning arrangement 51 shown in FIGS. In the following, only the differences are discussed. In contrast to the representation according to FIG. 3, the front-end heat exchanger 59 has the first heat exchanger 93, the second heat exchanger 95 and the third heat exchanger 97. Advantageously, this eliminates the ninth valve 9 shown in FIG. In the following, only the further differences will be discussed.

The air-conditioning arrangement 51 shown in FIG. 4 has a total of seven valves, namely the first valve 1, the second valve 2, the fourth valve 4, the fifth valve 5, the sixth valve 6, the seventh valve 7 and the tenth valve 100 the ninth valve 9 can, as shown in Figure 4 advantageously also on the third valve 3 of the

Electro-component arrangement 40 can be omitted. This advantageously has a

simplified structure, wherein the charger is not in the in Figures 1-3

drawn parallel branch 89 is connected, but in series with the power electronics 43, the DC-DC converter 41 and the electric machine 45. By means of the seven valves resulting in a total of 128 switching states, which are part of the invention. As a further difference, the first valve 1 of the first circuit 10 is not connected downstream of the first pump 15. As shown in FIG. 4, the first valve 1 is connected downstream of the third heat exchanger 97 of the front-end heat exchanger 59. However, the first valve 1 fulfills the same function at this point, so that the first circuit 10 according to the illustration of Figure 4 also optionally via the front-end heat exchanger 59 or the

Heating heat exchanger 85 can be performed. In accordance with the individual operating states, reference is made to the different switching positions of the seven valves and also to the description of the air-conditioning arrangements 51 according to FIGS. 1-3.

According to the representation of FIG. 4, the air-conditioning arrangement 51 likewise has the two circuits, namely the first circuit 10 and the second circuit 20, which are each coupled to the Peltier heat pump 79.

The second circuit 20 acts in a summer operation as a cooling circuit for the

Interior 71 and the electrical components and winter operation as a circuit for receiving ambient heat from the environment 69 or to absorb waste heat of the electrical components.

The second circuit 20 thus always represents the colder of the two circuits. In this second circuit 20, a temperature level is generated at the heat exchangers of the front-end heat exchanger 59 and the air conditioner with the help of the Peltier heat pump 79, with the depending on the operating heat from the Environment 69 and from the electrical components

can be received or the interior 71 can be cooled and dehumidified. The switched into the second circuit 20 components are arranged according to the expected temperature level. In winter operation case 59 as much heat from the environment 69 is added to the front-end heat exchanger. An exit temperature of the heat transport medium 57 at an outlet of the Peltier heat pump 79 or at an inlet of the front-end heat exchanger 59 is advantageous to below a temperature level of the environment 69th

Subsequently, the cooling heat exchanger 65 is flowed through.

This has the purpose of achieving the highest possible air circulation rate through permanent dehumidification operation.

At the cooling heat exchanger 65 condenses due to the low temperature level, the humidity from a mixture of circulating air and fresh air. In this case, a latent advantageous Heat output also co-used by condensing out the humidity. For a pure dehumidifying operation, the front-end heat exchanger 59 can be decoupled with the aid of the second valve 2 of the second circuit 20. As a result, a lower temperature level is produced at the cooling heat exchanger 65 than at the upstream front end heat exchanger 59 and it can be dehumidified more. On the electrical components can in one

Winter operation case the available waste heat for the heat pump operation to be used.

In a summer operating case, in the second circuit 20, the third heat exchanger 97 is decoupled in the flow direction with the aid of the seventh valve 7, which is designed as a changeover valve. About the cooling heat exchanger 65, the interior 71 is thermally conditioned. Subsequently, the electrical components are flowed through and cooled. As soon as the temperature of the heat transport medium 57 is above the ambient temperature after the electrical components, the heat absorbed is first emitted as good as possible to the front end heat exchanger 59 connected downstream of the E components.

Accordingly, the seventh valve 7 can be switched. In turn, the low temperature level for conditioning the interior 71 is generated via the Peltier heat pump 79.

In the first cycle 10, heat is released to the environment 69 in the summer operating case, and in the winter operating case the heating power is brought via the heating heat exchanger 85 into the interior 71.

As a control parameter are in the given circuit, a power of the Peltier heat pump 79, a respective mass flow in the circuits and air mass flows of the indoor air flow 73 and the ambient air flow 63 and corresponding

Fan speeds and / or flap positions, for example grille shutters,

Recirculation flaps and the heat exchanger 85 upstream flaps and / or the like available.

For regulating and / or controlling, a regulating and / or control device not shown in detail in FIGS. 1-4 may be used to control the valves 1-10, the pumps 15, 25, 35 and the electrical energy 83 and the fan of the front-end heat exchanger 59 and the air conditioner be provided.

FIG. 5 shows a detailed view of the electrical component arrangement 40 shown in FIG. 4. The electrical component arrangement 40 according to the representation of FIG. 5 has a total of four 2/2-way valves or switching valves, namely a fourth valve 4, a fifth Valve 5, a sixth valve 6 and a seventh valve 7. This results in a total of 16 switching states that are part of the invention. In the following, five of the switching states according to the invention are described in greater detail by way of example.

In a first variant, the fourth valve 4 is closed, the fifth valve 5 is opened, the sixth valve 6 is closed and the seventh valve 7, which is embodied as a 3/2-way valve, is switched in the direction of the cold side 77 of the Peltier heat pump 79. This first variant can be advantageously used for a charging operation at low temperatures, wherein advantageously a thermal conditioning of the high-voltage battery 49 can be carried out under a waste heat utilization of the charger 47.

In a second variant, the fourth valve 4 is opened, the fifth valve 5 is closed, the sixth valve 6 is opened and the seventh valve 7 is switched in the direction of the third heat exchanger 97 of the front-end heat exchanger 59. This second variant can be advantageously used for a charging operation at high temperatures and / or for cooling the charger 47 and the high-voltage battery 49.

In a third variant, the fourth valve 4 is opened, the fifth valve 5 is closed, the sixth valve 6 is closed and the seventh valve 7 is switched in the direction of the cold side 77 of the Peltier heat pump 79.

This third variant can be advantageously used for a start-up operation in a winter and / or for a heat pump operation with a thermal conditioning of the high-voltage battery 49 after a charging operation.

In a fourth variant, the fourth valve 4 is closed, the fifth valve 5 is closed, the sixth valve 6 is opened and the seventh valve 7 is switched in the direction of the third heat exchanger 97 of the front-end heat exchanger 59. This fourth variant can be advantageously used for a continuous operation in a summer and / or for a cooling operation of the electric machine 56, the DC-DC converter 41 and the power electronics 43.

In a fifth variant, the fourth valve 4 is closed, the fifth valve 5 is closed, the sixth valve 6 is opened and the seventh valve 7 is switched in the direction of the cold side 77 of the Peltier heat pump 79. This switching state can be advantageous for a continuous operation in a winter and / or a heat pump operation with waste heat utilization of

Power electronics 43, the DC-DC converter 41 and the electric machine 45 are used. FIG. 6 shows a detailed view of the electrical component arrangement 40 shown in FIG. 3. The electrical component arrangement 40 shown in FIG. 6 has a total of five valves, namely four switching valves or 2/2-way valves and a 3/2-way switching valve. The valves are each designed as spring-return electromagnetically operated switching valve. In detail, the electrical component arrangement 40 shown in FIG. 6 has the third valve 3, the fourth valve 4, the fifth valve 5, the sixth valve 6 and the seventh valve 7. Accordingly, a total of 32 different switching states, which are part of the invention. Of the 32 possible switching states according to the invention, seven variants are described in greater detail below by way of example.

In a first variant, the third valve 3 is opened, the fourth valve 4 is opened, the fifth valve 5 is opened, the sixth valve 6 is opened and the seventh valve 7 is switched in the direction of the cold side 77 of the Peltier heat pump 79. In this switching state of the first variant, all three parallel branches of the electrical component arrangement 40 are advantageous with the

Heat transfer medium 57 flows through, with all the electrical components of the

Electric component assembly 40 can be thermally conditioned alike.

In a second variant, the third valve 3 is closed, the fourth valve 4 is closed, the fifth valve 5 is opened, the sixth valve 6 is closed and the seventh valve 7 is switched in the direction of the cold side 77 of the Peltier heat pump 79.

Advantageously, this second variant can be used for a charging operation at low temperatures and / or a thermal conditioning of the high-voltage battery 49 with waste heat utilization of the charger 47. It can be seen that in this case the heat transport medium 57 first flows through the charger 47, where it is heated, so that the subsequently passed through high-voltage battery 49 can be warmed up accordingly.

The power electronics 43, the DC-DC converter 41 and the

Electric machine 45 are not flowed through because of the closed third valve 3.

In a third variant, the third valve 3 is closed, the fourth valve 4 is opened, the fifth valve 5 is closed, the sixth valve 6 is opened and the seventh valve 7 is switched in the direction of the second heat exchanger 95 of the front-end heat exchanger 59. This third variant can be advantageously used for a charging operation at high temperatures, with advantageous cooling of the charger 47 and the high-voltage battery 49 can be carried out. It can be seen that in this case the charger 47 and the high-voltage battery 49 can be flowed through in parallel, so that they can be cooled equally. Advantageously, due to the closed third valve 3, the power electronics 43, the DC-DC converter 41 and the electric machine 45 does not flow through, so that the entire volume flow of the heat transfer medium 57 can be used to cool the charger 47 and the high-voltage battery 49.

In a fourth variant, the third valve 3 is closed, the fourth valve 4 is closed, the fifth valve 5 is closed, the sixth valve 6 is closed and the seventh valve 7 is closed

Direction of the cold side 77 of the Peltier heat pump 79 connected.

This fourth variant can be used advantageously for a start-up operation in a winter and / or a heat pump operation with a thermally conditioned battery after a charging operation. In this case, only the high-voltage battery 49 is advantageously flowed through. The other parallel branches, in which the charger 47 or the power electronics 43, the DC-DC converter 41 and the electric machine 45 are connected, are not flowed through by the heat transport medium 57.

In a fifth variant, the third valve 3 is opened, the fourth valve 4 is closed, the fifth valve 5 is closed, the sixth valve 6 is closed and the seventh valve 7 is closed

Direction of the cold side 77 of the Peltier heat pump 79 connected. This fifth variant can advantageously be used for a continuous operation in a winter and / or a heat pump operation with a waste heat utilization of the power electronics 43 and / or the DC-DC converter 41 and / or the electric machine 45. Advantageously, both the charger 47 and the high-voltage battery 49 are not flowed through, so that they advantageously cause no resistance and no unused flow through the heat transfer medium 57. Due to the opened third valve 3 and the remaining closed valves 4, 5, 6, only the parallel branch of the power electronics 43, the DC-DC converter 41 and the electric machine 45 is flowed through.

In a sixth variant, the third valve 3 is opened, the fourth valve 4 is opened, the fifth valve 5 is closed, the sixth valve 6 is closed and the seventh valve 7 is switched in the direction of the cold side 77 of the Peltier heat pump 79.

Advantageously, this sixth variant for a continuous operation in a winter and / or a heat pump operation with waste heat utilization of the power electronics 43, the

DC-DC converter 41, the electric machine 45 and the high-voltage battery 49 are used. Advantageously, only the parallel branch 89, in which the charger 47 is connected, does not flow through. The remaining electrical components can advantageously be flowed through by the heat transport medium 57 for utilizing the waste heat. In a seventh variant, all valves except the seventh valve 7 are the same as in the fifth variant. The only difference is the seventh valve 7 is connected in the direction of the second heat exchanger 95 of the front-end heat exchanger 59. This seventh variant can be used advantageously for a continuous driving operation in a summer and / or a cooling operation of the electric machine 45, the DC-DC converter 41 and the power electronics 43. It can be seen that the charger 47 and the high-voltage battery 49 from the second circuit 20 and the electrical component assembly 40th

are switched out, so are not traversed by the heat transfer medium 57.

This is advantageous only over the remaining branch in the direction of the second

Heat exchanger 95 of the front-end heat exchanger 59 for the delivery of heat to the

Environment 69 led.

The valves 1 to 10 can also be designed as 2/2 or 3/2-way proportional valves. Advantageously, a particularly accurate control or in conjunction with measuring elements and a control device, a regulation of the heat balance of the

Motor vehicle 55 take place, in particular the heat flows 61, 67, 81, 87 and / or 101.

Fig. 7 shows a further embodiment, similar to that shown in Fig.1, wherein the number of branches and valves is reduced, so that the air conditioning assembly 251 can be made simpler. Functionally identical or identical components are provided in the embodiment shown in FIG. 7 with respect to the components shown in Figure 1 with increased by 200 reference numerals.

The illustrated air conditioning arrangement 251 in turn has a first circuit 210 which is operated with a heat transport medium 257, wherein a first pump 215 provides for its circulation. Following in the flow direction of the first pump 215, the hot side 275 of a Peltier heat pump 279 is provided in the circuit 210 and following this branching possibility via two 2/2 way valves 300a, 300b. A further transport of the heat transport medium 257 through a front end heat exchanger 259, in the present case the first partial heat exchanger 293, is possible via the first branch and thus an open valve 300a, and starting from this back to the first pump 215. The front end heat exchanger is as shown in FIG Embodiment, can be flowed through by an ambient air flow 263 between the first part of the heat exchanger 293 and the ambient air stream 263, a first heat flow 261 can be replaced. The second branching possibility at the valve 300b leads the heat transport medium 257 via a heating heat exchanger 285, via which a fourth heat flow 287 with the

Indoor airflow 273 is replaced. Subsequently, the heat transport medium 257 in the suction region of the pump 215 is traceable.

The air conditioning assembly 251 has analogous to that explained in Fig. 1

Embodiment, a second circuit 220 which is operated by means of the heat transport medium 257 and a second pump 225. Alternatively or additionally, in turn, a further heat transport medium can be provided. Via the second pump 225, the heat transport medium 257 to the cold side 277 of the Peltier heat pump 279 feasible. This is followed by a branching option in three lines, which can be opened or closed via a respective 2/2-way valve 302a, 302b, 302c.

A first branch, which can be flowed through via the valve 302 a, leads to a cooling heat exchanger 265, which is assigned to an interior 271 of the motor vehicle 255. The leading into the interior 271 indoor airflow 273 is by heat transfer of a second

Heat flow 267 generated with the cooling heat exchanger 265. from

Cooling heat exchanger 265, the heat transport medium 257 to the suction side of the second pump 225 is traceable.

A second branch of the circuit 220 is in the direction of via the valve 302b

Electro-component arrangement 240 can be conducted. This branch leads into a line section which, in addition, runs into a third circuit 230, which is operated via a third pump 235.

is involved. In the flow direction of the heat transport medium 257 is after the valve 302 b, a DC-DC converter unit 241, 241 a, which as in this case in two parts, for example, to provide the voltage of two independent Bordnetze or one piece (not shown) is arranged. This is followed by power electronics 243 and an electric motor 245, in particular the drive motor of the

Motor vehicle provided. Via a 3/2-way valve 207, the heat transport medium 257 can be guided either via a second partial heat exchanger 295 of the front-end heat exchanger 259 or a bypass 303 bypassing it. Depending on the switching state of a 3/2-way valve 208, the heat transport medium 257 is led to the suction region of the second pump 225 of the second circuit 220 or to the suction region of the third pump 235 of the third circuit 230. In contrast to the first embodiment shown in FIG. 1 is therefore the second

Partial heat exchanger 295 of the front-end heat exchanger 259 integrated into both the second 220 and the third circuit 230. On a separate heat exchanger as indicated in Figure 1 by the reference numeral 97, can be omitted here. A third branch of the circuit 220 is opened or closed via the 2/2 valve 302c, the valve 302c being supplied with the high-voltage battery 249 and a charger 247 as part of the electrical component arrangement with the heat transport medium 257.

Subsequently, the heat transport medium 257 is returned via the parallel branch 289 to the second pump 225.

The operating modes of the arrangement according to FIG. 7 are described analogously to FIG. 1, wherein in a first operating mode for actively cooling the interior 271 of the motor vehicle 255 and part of the electrical component arrangement 240, the valve 300a is opened and the valve 300b is closed, then that the heating heat exchanger 285 is not flowed through by the heat transport medium 257. Rather, the heat transport medium 257 via the hot side 275 of the Peltier heat pump 279 to the front end heat exchanger 259 via the open valve 300a in the first circuit 210 and cooled there by means of the partial heat exchanger 293 through the first heat flow 261 through the ambient air flow 263. The amount of heat generated at the Peltier heat pump 279 on the hot side 275 is thus substantially discharged via the partial heat exchanger 293 to the environment 269. After passing through the first partial heat exchanger 293, the heat transport medium 257 can be conveyed again via the first pump 215.

About the second pump 225 in the second circuit 220, the heat transport medium 257 is cooled on the cold side 277 of the Peltier heat pump 279 and subsequently fed via the open valve 302 b the cooling heat exchanger 265, wherein the over

Heat flow 267 cooled indoor air flow 273 the interior 271 can be supplied. Also active, the DC-DC converter 241 241 a, the power electronics 243 and the electric motor 245 can be cooled via the open valve 302 b. The valve 207 is adjusted so that the heat transport medium 257 flows through the bypass 303, bypassing the second partial heat exchanger 295 back to the second pump 225. The valve 208 is then in a switching position, which prevents the way to the third pump 235. The valve 303c is in the closed position, so that the charger 247 and the high-voltage battery 249 are not supplied with the heat transport medium 257. Such an operating mode represents a typical summer operation.

In a second operating mode, also a typical summer mode, it is possible only the interior 271 active and the above-described components of the

Electrode assembly 240 only passively cool. Here, the cooling of the interior, as described for the first mode, taking advantage of the cold side 277 of the Peltier heat pump 279. For the passive cooling of the DC-DC converter 241, 241 a, the power electronics 243 and the electric motor 245 provides only the third cycle 230. About the third pump 235, the heat transport medium 257 is guided via said electrical components and under appropriate switching position of the valve 207 via the second partial heat exchanger 295 of the front-end heat exchanger 259 and by means of

Ambient air stream 263 cooled. Subsequently, the heat transfer medium 257 is supplied to the third pump 235 at a corresponding switching position of the valve 208. Accordingly, the third circuit 230 is disconnected from the second circuit 220, so that the cooling of the electrical component arrangement 240 is passively effected without switching on the Peltier heat pump 279. Valve 302b is then closed - as is valve 302c.

In the third mode of operation, as in the embodiment of Figure 1, a heating of the interior 271 with additional utilization of the waste heat of the Elektrokomponenten- arrangement 240. The first circuit 210 is connected so that the first pump 215, the heat transport medium 257 on the hot side 275th the Peltier heat pump 279 and the open valve 300b leads to the heater core 285. This is done via the fourth heat flow 287, a heating of the indoor air flow 273. The valve 300a is closed. The waste heat which may be produced at the DC-DC converters 241, 241 a, the power electronics 243 and the electric motor 245 is fed via the heat transport medium 257 to the cold side 277 of the Peltier heat pump 279. For this purpose, the valves 302a and 302c are closed and the valve 302b is opened. Furthermore, the valve 207 is switched so that the heat transfer medium 257 bypasses the second partial heat exchanger 295 via the bypass 303 and the switching position of the valve 208 is selected such that the supply line to the second pump 225 is opened and the supply to the third pump 235, which is switched off anyway is, is prevented.

In the fourth operating mode, analogous to the exemplary embodiment according to FIG

Dehumidification of the interior 271 done in the so-called reheat operation. In this case, both the heating heat exchanger 285 and the cooling heat exchanger 265 can be actively included in the circuits of the Peltier heat pump 279. For this purpose, the first pump 215 via the hot side 275 of the heat pump 279 conveys the heat transport medium 257 via the opened valve 300b to the heater core 285, at which via the fourth

Heat flow 287, a heating of the inner air flow 273, which is supplied to the interior takes place. The valve 300a is regulated in its position so that a desired temperature at the heat exchanger 285 can be adjusted by the proportion of the heat transfer medium 257 guided to the front-end heat exchanger 259. In the second circuit 220, the second pump 225 conveys the heat transport medium 257 via the cold side 277 of the Peltier heat exchanger 269 and the opened valve 302 a to

Cooling heat exchanger 265, where by the second heat flow 267 cooling and associated dehumidification of the indoor air flow 273 takes place. The third cycle 230 is shut down or the third pump 235 is turned off and the corresponding

Switching position of the valve 208 separated from the second circuit 220. Furthermore, the valves 302b and 302c are closed.

In a fifth operating mode, in addition to the reheat operation, cooling and / or waste heat utilization of the electrical component arrangement 240 takes place. The first circuit 210 is connected as in the fourth operating mode. The second circuit 220 is modified in that, in contrast to the fourth mode of operation, the valve 302b is opened in addition to the valve 302a, so that the DC-DC converter 241, 241a, the power electronics 243 and the electric motor 245 are supplied with the heat transport medium 257 become. The switching position of the valve 207 is selected so that the bypass 303 flows through bypassing the second partial heat exchanger 295 and is returned to the second pump 225.

In a sixth mode of operation, exclusively a purely passive cooling of the electrical component arrangement 240 takes place exclusively with the exclusive use of the third circuit 230. The heat transport medium 257 is supplied via the third pump 235 to the DC-DC converters 241, 241 a of the power electronics 243 and the electric motor 245 and the valve 207 is switched so that the bypass 303 is closed and the heat transport medium 257 is cooled at the second partial heat exchanger 295 with heat exchange with the ambient air stream 263. The 2/3-way valve 208 is switched so that the third circuit 230 is completely decoupled from the second circuit 220 and a return of the heat transfer medium 257 to the third pump 235 takes place. The first and second circuits 210, 220 are completely shut down, that is, in particular, the first and second pump 215, 225 are turned off. Likewise, the Peltier heat pump 279 is disabled.

During the mains charging operation, active cooling of the charging device 247 and the high-voltage battery 249 in a seventh operating mode is advantageously carried out, in particular during summer operation. Via the second pump 225, the heat transport medium 257 via the cold side 277 of the Peltier heat pump 279 in the second circuit 220 with open valve 302c for receiving a released during charging of the battery 249 heat to the battery 249 and the charger 247 out. The first circuit 210 is as in the first mode of operation

Embodiment shown in FIG. 7 connected. The third circuit 230 and thus also the third pump 235 are shut down. The valves 302a and 302b are closed.

The embodiment shown in Figure 7 has a total of seven valves, of which two are 3/2-way valves and five 2/2-way valves. This number can still be reduced by the valve 300b, in particular in the case of a so-called air-conditioned air conditioning arrangement 251. In this unillustrated embodiment, the heater core would 285 can not be separated from the heat transport medium 257, so that during operation of the Peltier heat pump 279 this is constantly heated, however, by suitable arrangement of the heating heat exchanger 285 in the indoor air flow 273 via one, the proportion of the heat exchanger 285 passing indoor air flow 273, regulating temperature flap to set the temperature of the indoor airflow 273 entering the internal space 271.

In any case, the exemplary embodiment according to FIG. 7 or the modified exemplary embodiment not shown has a reduced number of valves and branching points compared with the exemplary embodiment according to FIG

Variant variety of possible operating conditions is only slightly reduced. In addition, the front-end heat exchanger 259 is constructed in two parts only.

Furthermore, in the event that the battery 249 does not require liquid cooling, the parallel branch 289 with the valve 302c in the second circuit 220 can be omitted. The charger 247 may then be connected to the third circuit 230 in series with other components such as DC-DC converters 241, 241 a, power electronics 243 or electric motor 245.

LIST OF REFERENCE NUMBERS

1 first valve

2 second valve

3 third valve

4 fourth valve

5 fifth valve

6 sixth valve

7, 207 seventh valve

8, 208 eighth valve

9 ninth valve

10 first cycle

15 215 first pump

20 220 second cycle

25 225 second pump

30 230 third cycle

35 235 third pump

40 240 electrical component arrangement

41 241, 241 a DC-DC converter

43, 243 power electronics

45, 245 electric motor

47, 247 charger

49, 249 high-voltage battery

51, 251 air conditioning arrangement

53, 253 electric drive

55, 255 motor vehicle

57, 257 heat transport medium

59, 259 Front end heat exchanger

61, 261 first heat flow

63, 263 ambient air flow

65, 265 Cooling heat exchanger

67, 267 second heat flow

69, 269 environment

71, 271 interior

73, 273 Indoor airflow

75, 275 warm side

77, 277 cold side 79, 279 Peltier heat pump

81, 281 third heat flow

83, 283electric energy

85, 285 heating heat exchanger

87, 287 fourth heat flow

89, 289 Parallel branch

91 Valve arrangement

93 first heat exchanger

95 second heat exchanger

97 third heat exchanger

99 water-water heat exchanger

100 tenth valve

101 fifth heat flow

300a, 300b valve

302a, 302b, 302c valve

303 bypass channel

Claims

claims

An air conditioning arrangement (51, 251) for thermally conditioning a motor vehicle (55, 255), in particular an electric drive (53, 253), comprising: one driven by a heat transport medium (57, 257) and driven by a first pump (15, 215) first circuit (10, 210), one with the heat transport medium (57, 257) or another

Heat transfer medium operated and driven by a second pump (25, 225) second circuit (20, 220), in the first circuit (10, 210) connected heat exchanger, in particular front-end heat exchanger (59, 259), by means of a first heat flow ( 61, 261) is passively transportable between an ambient air stream (63, 263) coming from an environment (69, 269) of the motor vehicle (55, 255) and the heat transport medium (57, 257) of the first circuit (10, 210) the second circuit (20, 220) connected cooling heat exchanger (65, 265), by means of which a second heat flow (67, 267) between one in the environment (69, 269) of the motor vehicle (55, 255) at least partially

delimiting interior (71, 271) of the motor vehicle (55, 255) opening interior airflow (73, 273) and the heat transport medium (57, 257) or the further heat transport medium of the second circuit (20, 220) is passively transportable, characterized by a in the first circuit (10, 210) switched hot side (75, 275) and in the second circuit (20, 220) connected cold side (77, 277) having heat pump (79, 279), by means of a third heat flow (81, 281) of the

Heat transport medium (57, 257) or the further heat transport medium (57, 257) of the second circuit (20, 220) in the heat transport medium (57, 257) of the first circuit (10, 210) with a consumption of energy, in particular electrical energy (83 , 283) is actively transportable.

Air conditioning arrangement according to the preceding claim, characterized

in that a heating heat exchanger (85, 285) is connected in the first circuit (10, 210), by means of which a fourth heat flow (87, 287) is interposed between the first heat exchanger (85, 285) Indoor air flow (73, 273) and the heat transport medium (57, 257) or the further heat transport medium of the second circuit (20, 220) is passively transportable.

3. Air conditioning arrangement according to the preceding claim, characterized

characterized in that the first circuit (10, 210) comprises a first valve or first valves (1, 300a, 300b), by means of which the heat transport medium (57, 257) of the first circuit (10, 210) optionally either by the heat exchanger, in particular Front end heat exchanger (59, 259) or through the heating heat exchanger (85, 285) is feasible.

4. Air conditioning arrangement according to one of the preceding claims, characterized by an electrical component arrangement (40, 240), by means of the electrical components (41, 43, 45, 47, 49, 241, 241 a, 243, 245, 247, 249) of the motor vehicle (55, 255) are temperature-controlled.

5. Air conditioning arrangement according to one of the preceding claims, characterized

characterized in that the second circuit (20, 220) comprises the electrical component arrangement (40, 240).

6. Air conditioning arrangement according to the preceding claim, characterized

in that the second circuit (20) has one or more valves (100, 302b, 302c) by means of which the electrical component arrangement (40, 240) can optionally be separated from the remaining second circuit (20, 220).

7. Air conditioning arrangement according to one of the preceding three claims, characterized in that the electrical component arrangement (40, 240) has a parallel branch (89, 289), in which a charger (47, 247) of the electrical components (41, 241, 43, , 243, 45, 245, 47, 247, 49, 249).

8. Air conditioning arrangement according to the preceding claim, characterized

in that the electrical component arrangement (40, 240) has a

Valve arrangement (91, 302c), by means of which the parallel branch (89, 289) from the remaining electrical component assembly (40, 240) is separable.

9. Air conditioning arrangement according to one of the preceding five claims, characterized in that the electric component assembly (40, 240) is a valve (7, 207) downstream, by means of which the heat exchanger, in particular front-end Heat exchanger (59, 259) of the electrical component assembly (40, 240) is selectively connected or not.

10. Air conditioning arrangement according to one of the preceding claims, characterized

in that the heat exchanger, in particular front-end heat exchanger (59, 259), has only one first heat exchanger (93, 293) connected to the first circuit (10, 210) and a second heat exchanger (95) connected to the second circuit (20, 220) , 295).

1 1. Air conditioning arrangement according to the preceding claim, characterized

characterized in that the second circuit (20) comprises a valve (9) by means of which either the cooling heat exchanger (65) the second heat exchanger (95) of the front-end heat exchanger (59) downstream or cooperating with the seventh valve (7) of the second Circuit (20) of the second heat exchanger (95) of the

Front end heat exchanger (59) of the electrical component assembly (40) is nachschaltbar.

12. Air conditioning arrangement according to one of the preceding claims 1 - 4,

characterized by a third circuit (30, 230) operated with the heat transport medium (57, 257) or a third heat transport medium and driven by a third pump (35, 235).

13. Air conditioning arrangement according to the preceding claim, characterized

in that the third circuit (30, 230) has the electrical component arrangement (40, 240).

14. Air conditioning arrangement according to one of the preceding two claims, characterized in that between the second circuit (20) and the third circuit (30), a water-water heat exchanger (99) is connected, by means of which a fifth

Heat flow (101) between the heat transport medium (57) or the further heat transport medium of the second circuit (20) and the heat transport medium (57) or the third heat transport medium of the third circuit (30) is passively transportable.

15. Air conditioning arrangement according to one of the preceding claims 12 or 13,

characterized in that the cold side (77, 277) of the heat pump (79, 279) in the second circuit (20, 220) and in the third circuit (30, 230) connected or at least switchable.

16. Air conditioning arrangement according to one of the preceding claims 12, 13, 15, characterized in that the second circuit (20, 220) and the third circuit (30, 230) are connected in parallel.

17. Air conditioning arrangement according to one of the preceding claims 12, 13, 15 or 16, characterized in that the second circuit (20, 220) and the third circuit (30, 230) with a common heat transport medium (57, 257) are operable.

18. Air conditioning arrangement according to one of the preceding six claims, characterized in that the third circuit (30, 230) comprises a valve (8, 208), by means of which the third circuit (30, 230) either either by the cold side (77, 277 ) of the heat pump (79, 279) is feasible or not.

19. Air conditioning arrangement according to one of the preceding two claims, characterized in that the third heat flow (81, 281) selectively either either of the heat transport medium (57, 257) of the second circuit (20, 220) or of the common heat transport medium (57, 257 ) of the second circuit (20, 220) and the third circuit (30, 230) in the heat transport medium (57, 257) of the first circuit (10, 210) is actively transportable.

20. A method for thermally conditioning a, in particular an electric drive (53, 253) having motor vehicle (55, 255) by means of an air conditioning arrangement (51, 251), in particular an air conditioning arrangement (51, 251) according to one of

previous claims, with:

Operating a first circuit (10, 210) with a heat transport medium (57, 257) driven by a first pump (15, 215),

Operating a second circuit (20, 220) with the heat transport medium (57, 257) or another heat transport medium (57, 257) driven by a second pump (25, 225), passively transporting a first heat flow (61, 261) between one of an environment (69, 269) of the motor vehicle (55, 255) coming ambient air flow (63, 263) and the heat transport medium (57, 257) of the first circuit (10, 210) by means of a in the first circuit (10, 210) connected heat exchanger , in particular front-end heat exchanger (59, 259), Passively transporting a second heat flow (67, 267) between an interior airflow (73, 273) opening into an interior (71, 271) of the motor vehicle (55, 255) at least partially delimiting the surroundings (69, 269) of the motor vehicle (55, 255) ) and the heat transport medium (57, 257) or the further heat transport medium of the second circuit (20, 220) by means of a cooling heat exchanger (65, 265) connected in the second circuit (20, 220), characterized by actively transporting a third heat flow (81, 281) from the heat transport medium (57, 257) or the further heat transport medium of the second circuit (20, 220) into the heat transport medium (57, 257) of the first

Circuit (10, 210) with a consumption of energy (83, 283), in particular electrical energy by means of a one in the first circuit (10, 210) connected hot side (75, 275) and one in the second circuit (20, 220) switched cold side (77, 277) having heat pump (79, 279).

21. Motor vehicle (55, 255) with an air conditioning arrangement (51, 251) according to one of the preceding claims 1 - 19 and / or set up, designed, constructed and / or equipped with software for carrying out a method according to the

previous claim.