DE102018201526A1 - Storage device for storing electrical energy for a motor vehicle, and motor vehicle - Google Patents

Abstract

The invention relates to a memory device (6) for a motor vehicle (1), comprising at least one energy store (7) which has a housing (8) and at least one memory cell (9) arranged in the housing (8) for storing electrical energy. with at least one internal heat exchanger (10) arranged in the housing (8) and permeable by a temperature control medium, by means of which the at least one memory cell (9) is to be tempered by means of the temperature control medium, and with a valve element (11) through which the temperature control medium can flow in which a supply of the heat exchanger (10) with the tempering medium is adjustable, wherein at least the energy store (7) and the valve element (11) form a structural unit (12) which via the valve element (11) with respect to the structural unit (12) external and by the temperature control medium permeable circuit (13) is fluidically connectable, and wherein the valve element (11) between at least one he most switching position and at least a second switching position is switchable.

Description

The invention relates to a storage device for storing electrical energy for a motor vehicle according to the preamble of claim 1. Furthermore, the invention relates to a motor vehicle, in particular a motor vehicle, with at least one such storage device.

Such a storage device for a motor vehicle, in particular for a motor vehicle, for example, already from the DE 10 2007 012 893 A1 known. The storage device comprises at least one energy store, which has a housing and at least one memory cell arranged in the housing for storing electrical energy. Thus, by means of the energy storage device, in particular by means of the storage device, electrical energy, that is to say electrical current, can be stored. The storage device further comprises at least one arranged in the housing and can be flowed through by a temperature control internal heat exchanger, via which the at least one memory cell and thus the energy storage by means of tempering medium tempered, that is to cool and / or heated. In addition, the storage device comprises a valve element through which the temperature control medium can flow, by means of which a supply of the heat exchanger to the temperature control medium can be set. In other words, for example, at least one flow of the tempering medium can be influenced or adjusted to the heat exchanger by means of the valve element. In this case, at least the energy store and the valve element form a structural unit, which is fluidically connectable via the valve element to a circuit external to the unit and permeable by the temperature control medium.

Furthermore, the DE 101 28 164 A1 a vehicle cooling system for a temperature-increasing device, in particular for a traction battery or a fuel cell.

Moreover, from the DE 197 30 678 A1 a hybrid vehicle is known, which has a device for cooling drive components and interior heating. Object of the present invention is to develop a memory device and a motor vehicle of the type mentioned in such a way that the memory device can be mounted and disassembled in a particularly simple manner.

This object is achieved by a memory device with the features of claim 1 and by a motor vehicle having the features of claim 11. Advantageous embodiments of the invention are the subject of the dependent claims.

A first aspect of the invention relates to a storage device for a motor vehicle, in particular for a motor vehicle designed, for example, as a passenger car. The memory device comprises at least one energy store, which has a housing and at least one memory cell arranged in the housing for storing electrical energy or electric current. Thus, by means of the energy storage device, in particular by means of the storage device, electrical energy or electrical current can be stored. In order to be able to store a particularly high amount of electrical energy, the energy store preferably has a plurality of memory cells, which are accommodated or arranged in the housing. The respective memory cell is designed, for example, as a battery cell, so that the energy store is designed, for example, as a battery, in particular as a high-voltage battery (HV battery). Preferably, the energy storage is designed as a high-voltage memory, wherein when the energy storage is designed as a battery and a high-voltage storage, the energy is designed as a high-voltage battery. This means that the high-voltage battery is a high-voltage storage. The high-voltage memory has an electrical voltage, in particular an electrical operating voltage, or provides an electrical voltage, in particular an electrical operating voltage, the electrical voltage, in particular the electrical operating voltage, being greater than 50 volts and preferably being several hundred volts. As a result, for example, particularly high electrical power for driving the motor vehicle can be realized.

The motor vehicle has, for example, at least one electric machine by means of which at least one wheel of the motor vehicle or the motor vehicle as a whole can be electrically driven. For this purpose, the electric machine is supplied with stored in the energy storage electrical energy, so that the energy storage is also referred to as traction storage, especially as a traction battery.

The storage device, in particular the energy store, furthermore has at least one internal heat exchanger arranged in the housing and permeable by a temperature control medium, via which the at least one storage cell and thus the energy store can be tempered, ie cooled and / or heated by means of the temperature control medium. The memory cell or the energy storage can be tempered as a result of heat exchange, in the frame heat is exchanged between the memory cell or the energy storage and the temperature control via the heat exchanger. In order to cool, for example, the memory cell or the energy storage, a heat transfer from the storage cell or the energy storage takes place via the heat exchanger to the temperature control medium acting as a cooling medium. As a result, the memory cell or the energy storage is cooled, and the cooling medium is heated. Since the cooling medium flows through the heat exchanger, a particularly high amount of heat can be transported away from the energy store or from the storage cell. In order to heat, for example, the memory cell or the energy storage, there is a heat transfer from the acting as a heating medium temperature control via the heat exchanger to the memory cell or the energy storage. In order to realize a particularly efficient tempering, that is to say cooling and / or heating, the tempering medium is preferably a liquid, in particular water. The heat exchanger is referred to as an internal heat exchanger, since it is arranged as the at least one memory cell in the housing, so that the at least one memory cell and the heat exchanger are arranged in the same housing.

The storage device, in particular the energy store, further comprises a valve element through which the temperature control medium can flow, by means of which a supply of the heat exchanger to the temperature control medium can be set. This means that at least one flow of the temperature control medium can be influenced or adjusted by means of the valve element to the heat exchanger, so that, for example, the energy storage can be tempered especially needs.

In this case, at least the energy store and the valve element form a structural unit, which is fluidically connectable via the valve element to a circuit external to the unit and permeable by the temperature control medium, in particular of the motor vehicle. Under the feature that the valve element and the energy storage form said unit, is to be understood in particular that the valve element connected to the energy storage, in particular attached to the energy storage is, in particular such that the valve element - in particular independent of the rest of the motor vehicle - is secured against movements relative to the storage element or vice versa. The assembly is thus an assembled and thus preassembled or preassembled module, which can be handled and assembled in the assembled state and thus as a whole or assembled and disassembled, for example. Thus, for example, an assembly of the energy storage device on the motor vehicle is simultaneously accompanied by an assembly of the valve element or vice versa. In particular, in this case, for example, the valve element is directly or directly connected to the energy store, in particular attached to the energy store.

In order to be able to assemble or disassemble and disassemble the storage device in a particularly simple and thus time-saving and cost-effective manner, it is provided according to the invention that the valve element can be switched between at least one first switching position and at least one second switching position. In the first switching position, the internal heat exchanger via the valve element with the external circuit, in particular of the motor vehicle, fluidly connectable. In the second switching position of the internal heat exchanger by means of the valve element to be separated from the external circuit fluidly. In other words, in the fully manufactured state of the motor vehicle, this has the permeable by the temperature control circuit and the energy storage. If, for example, the valve element is in the first switching position, the internal heat exchanger is fluidically connected to the external circuit via the valve element in the completely manufactured state of the motor vehicle, so that, for example, when the temperature control medium flows through the external circuit, the temperature control medium is discharged from the external circuit through the valve element and through the valve element to the heat exchanger and can flow through the heat exchanger. As a result, for example, the energy storage is tempered in the manner described. Furthermore, in the first switching position, the temperature control medium can flow from the heat exchanger to the valve element and through the valve element and flow back into the external circuit via the valve element and flow through the external circuit. In the external circuit, for example, at least one tempering device is arranged, by means of which the tempering medium heated by the cooling of the energy store or cooled by the heating of the energy store can be cooled or heated.

Thus, in the first switching position, for example, the external circuit based on the structural unit is closed via the valve element and the heat exchanger. Expressed again in other words, in the first switching position, temperature control medium can flow from the circuit into the heat exchanger or into the structural unit and flow out of the heat exchanger or out of the energy store via the valve element.

In the second switching position, however, the heat exchanger is fluidically separated from the circuit in the fully manufactured state of the motor vehicle by means of the valve element, so that, for example, no tempering from the circulation to the heat exchanger and no tempering from the heat exchanger to or into the circuit can flow.

Thus, the valve element is designed as a switching valve, by means of which it is possible to connect the heat exchanger as needed with the circuit and to be able to separate from the circuit. In this way, it is possible, for example, to assemble and disassemble the storage device in a particularly simple manner and in this case, for example, to be able to exchange it for a further storage device without an excessive amount of tempering medium leaving the storage device. If, for example, the storage device is initially mounted, and if the valve element is in its first switching position, and if it is desired to disassemble the storage device, the valve element, for example, is first switched from the first switching position to the second switching position. Then, the storage device can be disconnected from the external circuit and disassembled as a whole from the motor vehicle. Since, in the meantime, the valve element is in the second switching position, no temperature control medium exits the storage device, so that no temperature control medium is lost. Since in this case the valve element and the energy storage form the structural unit, the fluidic separation and connection of the heat exchanger with the external, vehicle-side circuit can be realized by means of the structural unit itself and thus without separate components and thus in a particularly simple manner, so that the storage device time and cost can be assembled and disassembled.

The heat exchanger of the storage device, which is also referred to as an energy storage system, is used, for example, in order to avoid undesired temperatures of the energy store, for example even in extreme climatic conditions and in driving operation of the motor vehicle and when charging the energy store. For this purpose, the tempering medium is used, which can be provided by the vehicle-side circuit. Usually come with respect to the energy storage or with respect to the storage device external, additional components in particular in the form of switching and check valves are used, which are not part of the storage device, but for example, part of a vehicle-side hoses. These additional external components create additional space requirements. This disadvantage can now be avoided in the storage device according to the invention in that the valve element is part of the storage device and forms the said assembly with the energy store. As a result, the storage device can be integrated particularly easily into the motor vehicle, and excessive loss of the tempering medium during assembly and disassembly of the storage device can be avoided. By means of the valve element, it is possible to fluidly block the memory device to the environment and thus in particular to the vehicle-side, external circuit, ie seal or complete by the valve element is switched to the second switching position. This can be realized with only a small construction cost, since the valve element forms an assembly with the energy storage and thus is integrated with the memory device. Moreover, it is possible to provide the storage device without increased construction costs with different hydraulic connection types, thereby to realize, for example, a barrier or bypass also called bypass.

Under the feature that the at least one memory cell and thus the energy storage is to be tempered by means of the tempering, is to be understood in particular that the at least one memory cell or the energy storage tempered by the tempering, that is cooled and / or can be heated. By tempering the energy storage excessively high temperatures and / or excessively low temperatures of the energy storage can be avoided, so even at very high or very low outside temperatures, when charging the energy storage and during a journey of the motor vehicle, during which the motor vehicle with high electrical power is driven, unwanted temperatures of the energy storage can be avoided and thus an efficient and efficient operation can be ensured. Characterized in that the valve element is part of the storage device and characterized in that the structural unit in the second switching position is fluidly blocked to the outside, the valve element as a self-sealing unit connection can be realized.

It has proven to be particularly advantageous if the valve element is received in the housing. This means that the valve element is integrated into the housing, so that a particularly compact and thus space-saving design can be displayed. As a result, the storage device can be mounted and dismounted particularly easily.

In order to realize a particularly high degree of integration, it is provided in a further embodiment of the invention that the Valve element and the heat exchanger are accommodated in the same, limited by the housing receiving space of the housing. As a result, the space requirement can be kept very low, so that the storage device can be easily mounted and dismantled. It is preferably provided that the at least one memory cell is accommodated in the receiving space.

In a further embodiment of the invention, the valve element has a first connection, via which the valve element is fluidically connected to an inlet, via which the temperature control medium from the valve element to the heat exchanger can be guided. This means that the heat exchanger can be supplied via the inlet with the temperature control, which comes from the valve element. The valve element also has a second connection, via which the valve element is fluidically connected to a drain, via which the temperature control medium from the heat exchanger to the valve element can be guided. This means that the temperature control medium can flow from the heat exchanger to the valve element via the second connection.

Furthermore, the valve element preferably has a third connection via which the valve element can be fluidly connected or connected to the external circuit and can be supplied with the temperature control medium from the external circuit. This means that the temperature control medium from the circuit via the third port can flow into the valve element. In addition, the valve element has a fourth connection via which the valve element can be fluidically connected or connected to the external circuit, wherein the temperature control medium can be conducted via the fourth connection from the valve element into the external circuit. This means that the temperature control medium can flow away from the valve element into the external circuit via the fourth connection. By means of this embodiment, on the one hand, a particularly advantageous supply of the heat exchanger to the temperature control medium can be realized, wherein a particularly advantageous heat dissipation can be represented. In addition, a particularly compact design can be shown, so that a particularly simple assembly and disassembly is feasible.

Preferably, the valve element is designed as a 4-2-way valve, which has exactly the four connections and exactly the two switching positions. By using such a 4-2-way valve, components on the vehicle side and external to the storage device for supplying the storage device with the tempering medium can be avoided and the number of such external components can be kept particularly low, so that the number of parts, the cost and the weight of the motor vehicle as a whole can be kept in a particularly small frame.

In order to realize, for example, the aforementioned bypass, it is provided in a further embodiment of the invention that the third connection is fluidly connected in the second switching position with the fourth connection. Thus, if, for example, the valve element is in the second switching position, then the heat exchanger is fluidically separated from the external circuit by means of the valve element, but the temperature control medium can flow from the external circuit via the third connection into the valve element and into the valve element from the third Flow connection to the fourth port and flow through the fourth port of the valve element back into the external circuit, so that - while the valve element is in the second switching position - the temperature control medium circulates in the valve element or in the circuit, the circuit in the second Switching position of the valve element is closed by means of the valve element. In other words, in the second switching position, the third connection is fluidically connected to the fourth connection, so that the cooling medium in the second switching position can be introduced into the valve element via the third connection, can be conducted from the third connection to the fourth connection and via the fourth connection the valve element in the external circuit can be introduced. Thus, the circuit is closed in the second switching position and the temperature control medium can circulate or flow through the circuit in the second switching position, so that, for example, unwanted heat accumulation can be avoided.

In order to realize the aforementioned barrier or shut-off function particularly advantageous, it is provided in a further embodiment of the invention that the third terminal is disconnected in the second switching position of the fourth terminal. Thus, for example, the circuit is interrupted by the valve element in the second switching position. As a result, for example, an undesirable flow of the tempering be avoided.

A further embodiment is characterized in that, in the first switching position, the first connection is fluidically connected to the third connection and is separated from the second connection and from the fourth connection. Further, in the first switching position, the second terminal is fluidly connected to the fourth terminal and from the first terminal and the third terminal separated. In this way, the heat exchanger can be supplied particularly advantageous with the temperature control, and a particularly advantageous flow from the heat exchanger back into the external circuit can be realized.

A further embodiment is characterized in that in the second switching position, the first terminal is separated from the second terminal, from the third terminal and from the fourth terminal, wherein in the second switching position, the second terminal from the first terminal, from the third terminal and disconnected from the fourth port.

In order to be able to temper the energy store particularly advantageously, it has furthermore proven particularly advantageous if the temperature control medium is designed as a liquid.

Finally, it has proven to be particularly advantageous if the valve element is electrically, that is actuated by means of electric current and thereby by means of electric current from the second switching position in the first switching position is switchable, wherein the valve element independently in the de-energized state of the valve element occupies the second switching position. In other words, the valve element can be switched, for example, by means of electrical energy from the second switching position to the first switching position. This means that the valve element can be switched by the second switching position in the first switching position, that the valve element is supplied with electrical energy or electric current. Expressed again in other words, for example, the valve element can be switched by supplying the valve element with electrical energy from the second switching position to the first switching position and, for example, to keep it in the first switching position. Supplying the valve element with electrical energy is also referred to as energizing or energizing the valve element.

It has been found to be particularly advantageous if the valve element in the de-energized state, that is, when the valve element is not supplied with electrical energy, occupies the second switching position independently or automatically. Thus, it is provided, for example, that the valve element is to be held or held by energizing the valve element in the first switching position. Ends, for example, the energization of the valve element, the valve element preferably returns automatically or automatically or independently back to the second switching position and takes the second switching position. Thus, the storage device is de-energized state of the valve element locked to the outside, so that no tempering flows after and emerges from the storage device. Thus, for example, the storage device can be exchanged without there being any loss of the temperature control medium.

A second aspect of the invention relates to a motor vehicle, in particular a motor vehicle preferably designed as a passenger car, wherein the motor vehicle has at least one electric machine by means of which at least one wheel of the motor vehicle can be driven. In addition, the motor vehicle comprises at least one storage device according to the invention, wherein the electric machine can be supplied with the stored in the storage device electrical energy.

In particular, the following advantages can be realized by means of the memory device according to the invention: By integrating the valve element into the memory device, functional integration can be realized so that external additional components for supplying the heat exchanger with the temperature control medium can be avoided with respect to the memory device. As a result, the weight, a connection expense and flow resistance can be kept in a small frame.

• 1 eine schematische Schnittansicht eines erfindungsgemäßen Kraftfahrzeugs;
• 2 eine schematische Darstellung einer erfindungsgemäßen Speichereinrichtung gemäß einer ersten Ausführungsform; und
• 3 eine schematische Darstellung der Speichereinrichtung gemäß einer zweiten Ausführungsform.

Further details of the invention will become apparent from the following description of preferred embodiments with the accompanying drawings. Showing:

• 1 a schematic sectional view of a motor vehicle according to the invention;
• 2 a schematic representation of a memory device according to the invention according to a first embodiment; and
• 3 a schematic representation of the memory device according to a second embodiment.

In the figures, identical or functionally identical elements are provided with the same reference numerals.

1 shows a schematic side view of a motor vehicle 1 in the form of a motor vehicle designed as a passenger car. The car 1 includes a trained example as a self-supporting body structure 2 and rotatable on the structure 2 held wheels 3 , which are also referred to as vehicle wheels. The car 1 is over the wheels 3 on a roadway 4 supported or supported. Will the motor vehicle 1 in a state in which the motor vehicle 1 over the wheels 3 on the roadway 4 is supported, along the roadway 4 driven, so roll the wheels 3 on the roadway 4 from. The car 1 further comprises at least one electric machine 5 by means of which at least one or at least or exactly two of the wheels 3 is drivable or are. In particular, the motor vehicle 1 in total by means of the electric machine 5 electrically driven, so that the electric machine 5 Also referred to as a traction machine. The motor vehicle is designed, for example, as an electric vehicle or hybrid vehicle.

To the motor vehicle 1 by means of the electric machine 5 to power electrically, becomes the electric machine 5 in an engine operation and thus operated as an electric motor. For this purpose, the electric machine 5 supplied with electrical energy or electricity. To the electric machine 5 to supply with electric power, includes the motor vehicle 1 a storage device 6 , what a 2 according to a first embodiment and in 3 is shown schematically according to a second embodiment.

As in synopsis with 2 and 3 is recognizable, the memory device 6 at least one energy store 7 on which a housing 8th and at least one in the housing 8th arranged memory cell 9 for storing electrical energy. In particular, in the housing 8th several memory cells 9 recorded for storing electrical energy. The in the memory cell 9 stored electrical energy can be the electric machine 5 be fed to thereby the electric machine 5 to operate as an electric motor.

The storage device 6 further comprises at least one in the housing 8th arranged and permeable by a temperature control internal heat exchanger 10 over which the at least one memory cell 9 and thus the energy storage 7 To temper by means of the tempering, that is to cool and / or to heat. To the energy storage 7 via the heat exchanger to cool by means of the temperature control, so that the temperature control acts as a cooling medium, the temperature control has a lower temperature than the energy storage 7 on. As a result, there is a heat transfer from the energy storage 7 over the heat exchanger 10 to the the heat exchanger 10 flowing through and acting as a cooling medium tempering, whereby the energy storage 7 cooled and the temperature control medium is heated.

To the energy storage 7 to heat by means of the tempering, the temperature control has a higher temperature than the energy storage 7 on. As a result, there is a heat transfer from the cooling medium acting as the heating medium via the heat exchanger 10 to the energy storage 7 , whereby the energy storage 7 heated and the temperature control medium is cooled. Preferably, the temperature control medium is formed as a liquid, in particular as water, to the energy storage 7 to be able to temper particularly efficiently and effectively.

The storage device 6 In addition, a flow-through by the temperature control and as a switching valve 11 formed valve element, by means of which a supply of the heat exchanger 10 is adjustable with the temperature control. At least form the energy storage 7 and the switching valve 11 a generally designated 12 assembly, which via the switching valve 11 with respect to the unit 12 external, permeable by the temperature control and in 2 partially recognizable cycle 13 of the motor vehicle 1 is fluidically connectable. Under the characteristic that the circulation 13 with respect to the unit 12 , in particular with regard to the storage device 6 , external circuit, is to be understood in particular that the external, vehicle-side circuit 13 not to the assembly 12 , in particular the storage device 6 belongs. Expressed again in other words is the vehicle-side, external circuit 13 not part of the assembly 12 or the storage device 6 ,

Under the feature that the switching valve 11 and the energy storage 7 the structural unit 12 In particular, it should be understood that the switching valve 11 and the energy storage 7 assembled, that is held together or mounted on each other or attached to each other, so that the assembly 12 an assembled and thus preassembled or preassembled module, which is handled as a whole and in or on the motor vehicle 1 installed or mounted as a whole and of the motor vehicle 1 as a whole can be dismantled. Thus, a mounting or dismounting of the energy storage 7 at the same time accompanied by an assembly or disassembly of the switching valve 11 and vice versa.

Now to the storage device 6 Particularly simple and thus time and cost to assemble and disassemble and replace, for example, to another storage device, is the switching valve 11 between at least one first switching position and at least one in 2 or 3 shown second switching position switchable. In the first switching position is the internal heat exchanger 10 via the switching valve 11 with the external circuit 13 fluidly connected or connected, so that in the first switching position that the circuit 13 flowing tempering of the circuit 13 through the switching valve 11 to the heat exchanger 10 flow and through the heat exchanger 10 can flow. Furthermore, in the first switching position that the heat exchanger 10 flowing temperature control of the heat exchanger 10 to the switching valve 11 flow through the switching valve 11 flow through and back into the external circuit 13 stream.

In the second switching position, however, is the internal heat exchanger 10 by means of the switching valve 11 from the external circuit 13 fluidly separated or separated so that neither tempering of the circuit 13 through the switching valve 11 to the heat exchanger 10 still from the heat exchanger 10 through the switching valve 11 in the cycle 13 can flow. Thus, in the second switching position, the unit 12 to their environment 14 out by means of the switching valve 11 fluidly sealed or sealed or completed, so that, for example, when the first mounted memory device 6 is dismantled while the switching valve 11 is in the second switching position, can still in the storage device 6 located cooling medium from the storage device 6 exit and to the environment 14 stream. As a result, excessive loss of the tempering medium can be avoided.

In a further embodiment not shown in the figures, it is possible that the switching valve 11 in the case 8th is received, so that, for example, the switching valve 11 and the heat exchanger 10 as well as the memory cell 9 in the same, through the case 8th limited recording room 15 of the housing 8th are included.

In the first embodiment and the second embodiment, it is also provided that the switching valve 11 outside the recording room 15 and optionally outside of the housing 8th arranged and in particular to the housing 8th is grown, so the switching valve 11 for example, at least indirectly, in particular directly, on the housing 8th is attached, in particular such that a housing 16 the switching valve 11 at least indirectly, in particular directly, on the housing 8th held or on the housing 8th is attached. In particular, the housing 16 such on the housing 8th attached that relative movements between the housings 8th and 16 are avoided. In this case, the switching valve 11 For example, at least one adjusting device 17 with a drive and at least one valve part, which, in particular translationally and / or relative to the housing 16 , is movable between the first switching position and the second switching position.

The switching valve 11 is designed as an electric valve or as an electrical switching valve. Thus, for example, the drive, by means of which the valve member is movable between the switching positions, electrically operable. For example, the switching valve 11 From the second switching state to switch to the first switching state, the switching valve 11 supplied with electrical energy. Supplying the switching valve 11 with electrical energy is also called Bestromen or energization of the switching valve 11 designated. By energizing the switching valve 11 For example, the adjusting device 17 , In particular whose valve member, moved from the second switching position to the first switching position. This includes the switching valve 11 a spring element 18 which, for example, in the housing 16 is arranged. The spring element 18 on the one hand, at least indirectly, in particular directly, on the adjusting device 18 or the valve part and on the other hand at least indirectly, in particular directly, on the housing 16 supported. In the first switching position is the spring element 18 strained, causing the spring element 18 provides a spring force in the first switching position. The spring force acts on the adjusting device 17 or the valve part, wherein the adjusting device 17 or its valve part by energizing the switching valve 11 against by the spring element 18 Provided spring force to hold in the first switching position is or is held. Is the energizing of the switching valve 11 finished, so can the spring element 18 at least partially relax, so that the adjusting device 17 or the valve member is moved by means of the spring force from the first switching position to the second switching position. Thus, the switching valve returns 11 in de-energized state from the first switching position back to the second switching position or the switching valve 11 takes in de-energized state, that is, when the switching valve 11 is not energized, independently or automatically, the second switching position. Thus, memory device 6 in de-energized state of the switching valve 11 to the environment 14 out by means of the switching valve 11 shut off or sealed or completed.

The switching valve 11 has a first connection 19 on, over which the switching valve 11 fluidic with an inlet 20 is connected, via which the temperature control of the switching valve 11 to the heat exchanger 10 is feasible. Furthermore, the switching valve 11 a second connection 21 on, over which the switching valve 11 fluidic with a drain 22 is connected, via which the temperature control of the heat exchanger 10 to the switching valve 11 is feasible.

Furthermore, the switching valve 11 a third connection 23 on, over which the switching valve 11 fluidic with another inlet 24 of the cycle 13 connectable or connected, so that the switching valve 11 over the third connection 23 with the temperature control the external circuit 13 is available. Finally, the switching valve 11 a fourth connection 25 on, over which the switching valve 11 fluidly with another sequence 26 of the cycle 13 connectable or connected, so that the temperature control via the fourth port 25 from the switching valve 11 in the external circuit 13 is conductive. In the first switching position thus the temperature control of the inlet 24 coming into the switching valve 11 and through the switching valve 11 flow, wherein the temperature control medium via the connections 23 and 19 to the heat exchanger 10 flows and the heat exchanger 10 flows through. Furthermore, in the first switching position that the heat exchanger 10 flowing temperature control of the heat exchanger 10 to the switching valve 11 flow and the switching valve 11 flow through, wherein the tempering the connections 21 and 25 flows through and over this in the process 26 flows.

At the in 2 shown first embodiment is a shut-off or a shut-off function of the switching valve 11 intended. Here is the third port 23 in the second switching position of the fourth port 25 separated. In contrast, at the in 3 shown second bypass provided a bypass, in which in the second switching position of the third port 23 fluidic with the fifth port 25 connected is.

In the first switching position is the first connection 19 fluidic with the third port 23 connected and from the second port 21 and from the fourth port 25 separated. Furthermore, in the first switching position, the second connection 21 fluidic with the fourth port 25 connected and from the first port 19 and from the third port 23 separated. In the second switching position is the first connection 19 from the second port 21 , from the third port 23 and from the fourth port 25 separated. Furthermore, in the second switching position, the second connection 21 from the first port 19 , from the third port 23 and from the fourth port 25 separated.

Overall, it can be seen that by means of the switching valve 11 a controlled and thereby in particular controlled temperature control, in particular cooling connection, can be represented, since by means of the switching valve 11 the supply of the heat exchanger 10 can be controlled or regulated with the temperature control medium. In 2 and 3 is the switching valve 11 designed as an attachment, since the housing 16 to the housing 8th is grown. In a fully integrated solution, the switching valve 11 , in particular the adjusting device 17 or the valve member, for example in the housing 8th and in particular in the recording room 15 arranged so that, for example, the housing 16 integral with the housing 8th is formed or through the housing 8th is formed.

Because the switching valve 11 Part of the storage device 6 is, can with respect to the storage device 6 external, additional vehicle-mounted components for adjusting the supply of the heat exchanger with the tempering avoided or the number of such external, additional components can be kept particularly low, so that the number of parts, the weight and the cost of the motor vehicle 1 be kept in a very small frame.

LIST OF REFERENCE NUMBERS

1

motor vehicle

2

construction

3

wheel

4

roadway

5

electric machine

6

memory device

7

energy storage

8th

casing

9

memory cell

10

heat exchangers

11

switching valve

12

unit

13

circulation

14

Surroundings

15

accommodation space

16

casing

17

setting device

18

spring element

19

first connection

20

Intake

21

second connection

22

procedure

23

third connection

24

another feed

25

fourth connection

26

further process

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102007012893 A1 [0002]
• DE 10128164 A1 [0003]
• DE 19730678 A1 [0004]

Claims (12)

Storage device (6) for a motor vehicle (1), having at least one energy store (7) which has a housing (8) and at least one memory cell (9) arranged in the housing (8) for storing electrical energy, with at least one energy store the housing (8) arranged and can be flowed through by a temperature control internal heat exchanger (10) via which the at least one memory cell (9) is to be tempered by means of the temperature control, and with a permeable by the temperature control valve element (11), by means of which a supply of the Heat exchanger (10) with the tempering medium is adjustable, wherein at least the energy storage (7) and the valve element (11) form a structural unit (12), which via the valve element (11) with respect to the structural unit (12) and external of the tempering flow-through circuit (13) is fluidically connectable, characterized in that the valve element (11) between at least a first Sch in which the internal heat exchanger (10) via the valve element (11) with the external circuit (13) is fluidically connectable, and at least a second switching position is switchable, in which the internal heat exchanger (10) by means of the valve element (11) the external circuit (13) is to be separated fluidly. Storage device (6) after Claim 1 , characterized in that the valve element (11) is received in the housing (8). Storage device (6) after Claim 2 , characterized in that the valve element (11) and the heat exchanger (10) in the same, by the housing (8) limited receiving space (15) of the housing (8) are accommodated. Storage device (6) after Claim 3 , characterized in that the at least one memory cell (9) is received in the receiving space (15). Storage device (6) according to one of the preceding claims, characterized in that the valve element (11) comprises: - a first connection (19) via which the valve element (11) is fluidically connected to an inlet (20), via which the temperature control medium from the valve element (11) to the heat exchanger (10) is feasible; - A second connection (21), via which the valve element (11) fluidly connected to a drain (22) through which the temperature control of the heat exchanger (10) to the valve element (11) can be guided; - A third connection (23) via which the valve element (11) fluidly connected to the external circuit (13) and can be supplied with the tempering medium from the external circuit (13); and - a fourth connection (25), via which the valve element (11) is fluidically connectable to the external circuit (13), wherein the temperature control medium via the fourth connection (25) from the valve element (11) into the external circuit (13) is conductive. Storage device (6) after Claim 5 , characterized in that the third connection (23) is fluidically connected in the second switching position with the fourth connection (25). Storage device (6) after Claim 5 , characterized in that the third terminal (23) in the second switching position is separated from the fourth terminal (25) Storage device (6) according to one of Claims 5 to 7 characterized in that in the first switching position: - the first port (19) is fluidly connected to the third port (23) and separated from the second port (21) and from the fourth port (25); and - the second port (21) is fluidly connected to the fourth port (25) and separate from the first port (19) and the third port (23). Storage device (6) according to one of Claims 5 to 8th , characterized in that in the second switching position: - the first terminal (19) is separated from the second terminal (21), the third terminal (23) and the fourth terminal (25); and - the second terminal (21) is separated from the first terminal (19), the third terminal (23) and the fourth terminal (25). Storage device (6) according to one of the preceding claims, characterized in that the temperature control medium is formed as a liquid. Memory device (6) according to one of the preceding claims, characterized in that the valve element (11) is electrically actuated and thereby by means of electric current from the second switching position in the first switching position is switchable, wherein the valve element (11) in the de-energized state of the valve element (11 ) automatically assumes the second switching position. Motor vehicle (1), with at least one electric machine (5), by means of which at least one wheel (3) of the motor vehicle (1) can be driven, and with at least one storage device (6) according to one of the preceding claims, wherein the electric machine (5 ) with in the Memory device (6) stored electrical energy can be supplied.

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