DE102018110565A1 - Battery carrier system for a vehicle - Google Patents

Abstract

The disclosure relates to a battery carrier system (100) for receiving at least one electric battery module in a vehicle, having a battery carrier (101) for receiving the at least one electric battery module; a heat exchanger (103) having a fluid channel (105), wherein the fluid channel (105) is formed within the battery carrier (101) and can be charged by a fluid in order to temper the electric battery module, the heat exchanger (103) having a first fluid connector (107 -1) and a second fluid port (107-2), wherein the first fluid port (107-1) and the second fluid port (107-2) are fluidly connected through the fluid channel (105); and a switching valve (115), which is fluidly connected and formed with the first fluid port (107-1) and the second fluid port (107-2), in a first time interval (134, 134-1) the first fluid port (107-1 ) to feed the fluid to pass the fluid through the fluid channel (105) in a first flow direction (109-1), and in a second time interval (134, 134-2) with the second fluid nozzle (107-2) Fluid to supply the fluid through the fluid channel (105) in a second flow direction (109-2), which is opposite to the first flow direction (109-1) to lead.

Description

The present disclosure relates to a battery carrier system for receiving at least one electric battery module in a vehicle, in particular in an electrically driven vehicle.

For supporting battery modules for the provision of electrical energy in electrically driven vehicles usually battery carriers are used, which are arranged between the axles of the vehicle. Since the performance and life of electric battery modules may decrease with widely varying temperatures, tempering systems are often used to keep the battery modules at a constant temperature.

In the DE 10 2013 206 770 A1 discloses a battery cooling device for a vehicle with electric drive, with a refrigerant circuit having a plurality of parallel through which a refrigerant can flow through refrigerant paths.

It is the object of the present disclosure to ensure efficient temperature control of at least one battery module accommodated on a battery carrier.

This object is solved by the features of the independent claims. Advantageous embodiments are subject of the dependent claims, the description and the accompanying figures.

The present disclosure is based on the finding that the above object can be achieved by a battery support system having a switching valve to supply the battery support with fluid, so that by the fluid effective temperature control, in particular cooling and / or heating, on the battery carrier recorded electrical battery modules can be ensured. The switching valve is in this case designed to guide the fluid alternately with different flow directions through the battery carrier, whereby all electrical battery modules accommodated on the battery carrier can be uniformly tempered.

In this way, large temperature fluctuations in the electric battery modules can be prevented, so that an advantageous life and an advantageous performance of all recorded by the battery carrier electric battery modules can be ensured.

According to a first aspect, the disclosure relates to a battery support system for receiving at least one electric battery module in a vehicle, with a particular plate-shaped battery carrier for receiving the at least one electric battery module, a heat exchanger with a fluid channel, wherein the fluid channel formed within the battery carrier and by a Fluid is chargeable to temper the electric battery module, the heat exchanger having a first fluid port and a second fluid port, wherein the first fluid port and the second fluid port are fluidly connected through the fluid channel, and a switching valve, which with the first fluid port and the second Fluid nozzle is fluidly connected and adapted to feed in a first time interval, the first fluid nozzle with the fluid to guide the fluid through the fluid channel in a first flow direction, and in a second time interval to feed the second fluid port with the fluid to guide the fluid through the fluid channel in a second flow direction, which is opposite to the first flow direction.

As a result, the advantage is achieved that all the battery modules can be effectively tempered, in particular cooled or heated, by the passage of fluid through the fluid channel in different flow directions on the battery carrier.

The fluid channel of the heat exchanger is thermally coupled to the battery module. As a result, the at least one electrical battery module accommodated on the battery carrier is in thermal contact with fluid which is conducted through the fluid channel. As a result of the fluid, an effective tempering of the electric battery modules can be ensured, in particular an effective heating and / or cooling.

In particular, a plurality of electric battery modules is arranged on the battery carrier, the battery carrier in particular having a plurality of module receptacles, wherein a battery module is accommodated on each module receptacle of the battery carrier. Here, a battery module of the plurality of electric battery modules facing the first fluid port of the battery carrier and another battery module of the plurality of electric battery modules facing the second fluid port of the battery carrier.

When the fluid is guided through the fluid channel in the first flow direction, the fluid enters the fluid channel of the battery carrier through the first fluid connector and first tempered the battery module facing the first fluid connector on the battery carrier. Subsequently, the fluid flows through the fluid channel and tempered the arranged between the first and second fluid nozzle battery modules, before finally the Battery module, which faces the second fluid port, is tempered.

Since the fluid, in particular coolant, during the unidirectional flow through the fluid channel and the tempering of the battery modules continuously dissipates heat to the battery modules, or absorbs heat from the battery modules, the caused by the fluid temperature effect on the downstream of the battery carrier arranged battery modules is less than the caused by the fluid tempering effect on the battery modules arranged upstream on the battery modules. Thus, in the case of a non-changing flow direction of the fluid in the fluid channel, the battery module facing the second fluid connector can no longer be heated as effectively as the battery module facing the first fluid connector.

On the other hand, by changing the flow direction by the switching valve according to the present disclosure, the fluid can be alternately directed in the opposite flow direction through the fluid channel, so that the battery modules facing the first fluid nozzle and the battery modules facing the second fluid nozzle uniformly can be tempered. Thus, all recorded on the battery carrier battery modules as possible with a constant, optimum operating temperature, in particular between 20 ° C and 30 ° C, operated.

By the uniform temperature control of all battery modules on the battery carrier, which is caused by the different flow directions of the fluid in the fluid channel, the life and the performance of the battery modules can be advantageously improved during operation of the vehicle.

In one embodiment, the battery carrier system has a plurality of battery carriers which are fluidly connected to one another.

In an advantageous embodiment, the heat exchanger has a plurality of fluid channels, which each fluidly connect a first fluid port of a plurality of first fluid port of the battery carrier with a second fluid port of a plurality of second fluid port of the battery carrier.

In an advantageous embodiment, the at least one fluid channel comprises a plurality of webs, which are arranged on an inner side of the fluid channel, wherein the webs are formed in particular along a longitudinal axis of the fluid channel.

The webs increase the area available for the heat exchange with the electric battery module surface of the fluid channel.

In an advantageous embodiment, the fluid channel is formed tubular in the battery carrier.

In one embodiment, the first fluid port and the second fluid port are each formed tubular.

In one embodiment, the battery carrier system has a fluid circuit, which is fluidly connected to the battery carrier, in particular to the first and second fluid port of the battery carrier.

In one embodiment, the fluid circuit has a first fluid circuit section, which is fluidly connected to the first fluid connector of the battery carrier, and the fluid circuit has a second fluid circuit section, which is fluidly connected to the second fluid connector of the battery carrier.

In one embodiment, the battery support system includes a fluid pump configured to pump fluid through a fluid circuit, wherein the fluid passage is fluidly connected to the fluid circuit.

As a result, the technical advantage is achieved that fluid can be advantageously pumped through the fluid circuit by the fluid pump and also through the fluid channel fluidly connected to the fluid circuit. In particular, the fluid pump is designed to pump the fluid through the fluid circuit in a single pumping direction so that switching between the first and second flow directions in the fluid channel between the first and second time intervals is performed exclusively by the switching valve.

In one embodiment, the switching valve is configured to fluidly guide the passage of fluid through the fluid channel in the first flow direction in the first time interval, and fluidically reverse the passage of fluid through the fluid channel in the second flow direction in the first time interval, and the switching valve is configured to in the second time interval fluidly releasing the fluid passing through the fluid channel in the second flow direction and fluidly reversing the routing of fluid through the fluid channel in the first flow direction in the second time interval.

As a result, the technical advantage is achieved that the switching valve allows an effective change of the flow directions in whichever Time interval one of the flow directions fluidly enabled and the other of the flow directions can be fluidly reversed.

In one embodiment, the battery support system includes a controller for controlling the switching valve, wherein the controller is configured to terminate the first time interval and start the second time interval after a predetermined duration of the first time interval, and / or wherein the controller is configured after one predetermined duration of the second time interval to end the second time interval and to begin the first time interval.

This achieves the technical advantage that the controller can control an automatic, in particular periodic, change between the time intervals and a correlated automatic, in particular periodic, change of the flow directions of the fluid through the predetermined duration of the respective time interval. The predetermined duration of the first and / or second time interval is dependent in particular on the volume of the fluid in the fluid circuit, in particular on the length of the fluid circuit, and / or on the size of the battery carrier.

In one embodiment, the controller is configured to control the changeover valve to alternately charge the first fluid nozzle with fluid in the first flow direction in the first time interval and the second fluid nozzle with fluid in the second flow direction in the second time interval, wherein the controller is configured in particular to control a change between the first and second time interval continuously, in particular periodically.

Thereby, the technical advantage is achieved that can be achieved by the continuous, in particular periodic change, the flow directions of the fluid in the fluid channel an effective temperature control of all battery modules on the battery carrier.

In one embodiment, the battery support system has a tempering device for controlling the temperature of the fluid in the fluid channel, wherein the tempering device is fluidly connected to the fluid channel of the heat exchanger and designed to temper the fluid in the fluid channel, in particular to heat or cool it.

This achieves the technical advantage that the fluid which is effectively tempered by the tempering device can either absorb heat from the battery modules within the fluid channel or can deliver heat to the battery modules in order to effectively temper the battery modules.

In one embodiment, the battery support system includes a controller for controlling the temperature control device, wherein the battery support system comprises a temperature sensor for detecting a temperature of the at least one electric battery module, wherein the controller is configured to control the tempering device for heating the fluid when the detected temperature of the at least an electric battery module falls below a first temperature threshold, and / or wherein the controller is configured to control the tempering device for cooling the fluid when the detected temperature of the at least one battery electric module exceeds a second temperature threshold.

As a result, the technical advantage is achieved that the tempering device in combination with the temperature sensor ensures that the battery modules can be operated at an optimum operating temperature. In this case, the controller can in particular control the tempering device and the changeover valve.

In one embodiment, the battery support system includes a fluid receptacle for receiving the fluid, and wherein the fluid receptacle is fluidly connected to the fluid passage of the heat exchanger to supply fluid from the fluid receptacle to the fluid channel and / or to receive fluid delivered from the fluid channel within the fluid receptacle.

Thereby, the technical advantage is achieved that an advantageous amount of fluid is ensured in the fluid channel by the fluid receptacle, so that the fluid receptacle ensures a balance of the amount of fluid in the fluid channel and no significant variations in the amount of fluid in the fluid channel can occur.

In one embodiment, the fluid channel within the battery carrier on a meandering, flat and / or honeycomb-shaped course.

Thereby, the technical advantage is achieved that through the meandering, flat and / or honeycomb-shaped course of the fluid channel, a particularly large area of the battery carrier can be charged with fluid, whereby a particularly effective temperature control of the battery modules can be ensured.

In one embodiment, the first and second fluid nozzles are arranged on a first side, in particular front side, of the battery carrier.

Thereby, the technical advantage is achieved that an effective connection of the first and second fluid nozzle is ensured to a fluid circuit.

In one embodiment, the fluid channel has a first fluid channel section fluidly connected to the first fluid connector and a second fluid channel section fluidly connected to the second fluid connector, the first fluid channel section extending from a first side of the battery tray to one of the first fluid channel Side facing away from the second side of the battery tray, wherein the second fluid channel section adjoins the first fluid channel section, and wherein the second fluid channel section extends from the second side of the battery tray to the first side of the battery tray.

This achieves the technical advantage that the fluid channel is in thermally conductive contact with a particularly large area of the battery carrier.

In one embodiment, the battery carrier has a ceiling wall for receiving the at least one electric battery module, the battery carrier has a bottom wall facing away from the bottom wall, and the fluid channel between the top wall and the bottom wall is formed.

Thereby, the advantage is achieved that the fluid channel are effectively enclosed by the top wall and the bottom wall, so that the fluid channel ensures effective heat exchange with the top wall, or with the bottom wall.

In one embodiment, the fluid channel is disposed within or below the respective ceiling wall and thermally coupled to the ceiling wall.

As a result, the advantage is achieved that an effective heat exchange between the fluid channel and the ceiling wall can take place by the thermal coupling between the fluid channel and the ceiling wall.

In one embodiment, the battery carrier is integrally molded, in particular as a metallic extrusion component.

As a result, the advantage is achieved that a particularly advantageous production of the battery carrier is made possible by the one-piece shape of the battery carrier.

According to a second aspect, the disclosure relates to a method for tempering at least one electric battery module in a vehicle, wherein the electric battery module is accommodated in a battery carrier system of the vehicle, wherein the battery carrier system has a particular plate-shaped battery carrier for receiving the at least one electric battery module, wherein the Battery support system having a heat exchanger with a fluid channel, wherein the fluid channel is formed within the battery carrier and can be charged by a fluid to temper the electric battery module, the heat exchanger having a first fluid port and a second fluid port, wherein the first fluid port and the second fluid port through the fluid channel are fluidly connected, and wherein the battery support system comprises a switching valve which fluidly connected to the first fluid port and the second fluid port and excludes The method comprises the steps of supplying the first fluid nozzle with the fluid at a first time interval through the switching valve to supply the fluid through the fluid channel in a first flow direction guiding and supplying the second fluid nozzle with the fluid in a second time interval through the switching valve to guide the fluid through the fluid channel in a second flow direction, which is opposite to the first flow direction.

As a result, the advantage is achieved that an effective temperature control of the at least one battery module is ensured.

In one embodiment, the battery support system includes a controller for controlling the changeover valve, wherein the charging of the first fluid nozzle stops during the first time interval after a predetermined duration of the first time interval by the controller, and then the charging of the second fluid nozzle during the second time interval is started, and / or wherein the loading of the second fluid nozzle during the second time interval after a predetermined duration of the second time interval terminated by the controller and then the loading of the first fluid nozzle during the first time interval is started.

In one embodiment, the charging of the first fluid nozzle during the first time interval and the charging of the second fluid nozzle during the second time interval are performed alternately, in particular periodically.

According to a third aspect, the disclosure relates to a cooling system for a vehicle, with a fluid-carrying cooling circuit, wherein in the cooling circuit, a vehicle radiator for cooling a vehicle drive is arranged, and wherein the battery support system according to the first aspect to the fluid-carrying cooling circuit fluidly is connected, so that the heat exchanger is flowed through by at least a portion of the fluid of the fluid-carrying cooling circuit to temper the electric battery.

This achieves the advantage that a cooling system already present in the vehicle for tempering, e.g. Heating and / or cooling, the electric battery module and / or the further electric battery module can be used. Due to the fluidic connection between the battery carrier and the fluid-carrying cooling circuit of the cooling system, cooling fluid can be diverted from the cooling system for the battery carrier. As a result, the battery carrier can be effectively tempered without having to install a separate cooling system for the battery carrier in the vehicle.

• 1 Eine schematische Ansicht eines Batterieträgersystems für die Aufnahme zumindest eines elektrischen Batteriemoduls in einem Fahrzeug;
• 2 Eine schematische Ansicht eines Batterieträgers eines Batteri eträgersystems;
• 3 Ein Diagramm eines Kühlvorgangs von elektrischen Batteriemodulen, welche in einem Batterieträger eines Fahrzeugs aufgenommen sind;
• 4 Ein Diagramm eines Heizvorgangs von elektrischen Batteriemodulen, welche in einem Batterieträger eines Fahrzeugs aufgenommen sind; und
• 5 Eine schematische Darstellung eines Verfahrens zum Temperieren zumindest eines elektrischen Batteriemoduls in einem Fahrzeug.

Further embodiments will be explained with reference to the accompanying figures. Show it:

• 1 A schematic view of a battery support system for receiving at least one electric battery module in a vehicle;
• 2 A schematic view of a battery carrier of a Batteri eträgersystems;
• 3 A diagram of a cooling process of electric battery modules, which are accommodated in a battery carrier of a vehicle;
• 4 A diagram of a heating operation of electric battery modules, which are accommodated in a battery carrier of a vehicle; and
• 5 A schematic representation of a method for controlling the temperature of at least one electric battery module in a vehicle.

1 shows a schematic view of a battery support system for receiving at least one electric battery module in a vehicle. The battery carrier system 100 has a battery carrier 101 for receiving the at least one electric battery module, wherein in the 1 the at least one electric battery module is not shown. The battery carrier 101 is in particular as a plate-shaped battery carrier 101 educated. The electric battery module or the plurality of electric battery modules can in particular on the battery carrier 101 be put on. The battery carrier 101 may comprise a plurality of module receptacles for receiving in each case an electric battery module, which are separated from each other in particular by partitions, and thus form niches, or depressions for the respective electric battery modules.

The battery carrier 101 may have another function and be formed as an underbody panel of the vehicle, which provides an underrun protection for the vehicle.

The battery carrier system 100 may further include a plurality of battery carriers 101 include, which are fluidly interconnected.

The battery carrier system 100 also has a heat exchanger 103 with at least one fluid channel 105 on, with the fluid channel 105 inside the battery carrier 101 is formed, and wherein the fluid channel 105 can be charged by a fluid. Like in the 1 is shown, the battery carrier comprises 101 the heat exchanger 103 with the fluid channel 105 , Through the through the fluid channel 105 of the heat exchanger 103 Guided fluid can enter through the battery carrier 101 recorded electric battery module can be effectively tempered.

Thus, inside the battery tray 101 the heat exchanger 103 formed, which is designed to temper the at least one electric battery module, in particular to cool and / or to heat. The heat exchanger 103 in this case is penetrated by a fluid, wherein the fluid absorb heat from the at least one electric battery module and can dissipate effectively from the electric battery module and / or the fluid can deliver heat to the at least one electric battery module and heat the electric battery module effectively. In this way, a constant temperature of the battery module can be ensured during operation of the at least one electric battery module, which has an advantageous effect on the performance parameters and on the life of the electric battery module.

To the fluid channel 105 of the heat exchanger 103 to effectively supply fluid, has the heat exchanger 103 a first fluid port 107 - 1 and a second fluid port 107 - 2 on, with the first fluid connector 107 - 1 and the second fluid port 107 - 2 through the fluid channel 105 fluidly connected. This allows the fluid to flow effectively through the fluid channel 105 be directed. Here is the first and second fluid port 107 - 1 . 107 - 2 with a fluid circuit 108 fluidly connected. The first fluid nozzle 107 - 1 is in this case in particular with a first fluid circuit section 108 - 1 of the fluid circuit 108 fluidly connected. The second fluid connection 107 - 2 is in this case in particular with a second fluid circuit section 108 - 2 of the fluid circuit 108 fluidly connected.

In particular, the fluid in an in 1 shown first flow direction 109 - 1 through the first fluid connector 107 - 1 in the fluid channel 105 introduced and the introduced fluid can in the first flow direction 109 - 1 through the second fluid port 107 - 2 from the fluid channel 105 be executed.

Like in the 1 is shown only schematically, the fluid in one of the first flow direction 109 - 1 opposite second flow direction 109 - 2 through the second fluid port 107 - 2 in the fluid channel 105 introduced and the introduced fluid can in the second flow direction 109 - 2 through the first fluid connector 107 - 1 from the fluid channel 105 be executed.

To the appropriate flow direction 109 - 1 . 109 - 2 of the fluid in the fluid circuit 108 to effect comprises the battery carrier system 100 a changeover valve 115 , which with the first fluid connector 107 - 1 and the second fluid nozzle 107 - 2 fluidly connected and formed, in a first time interval, the first fluid port 107 - 1 to supply the fluid to the fluid through the fluid channel 105 in the first flow direction 109 - 1 to lead, and in a second time interval the second fluid port 107 - 2 to supply the fluid to the fluid through the fluid channel 105 in the second flow direction 109 - 2 respectively.

In the first time interval is through the switching valve 115 passing fluid through the fluid channel 105 in the first flow direction 109 - 1 released and passing fluid through the fluid channel 105 in the second flow direction 109 - 2 fluid technically reversed.

In the second time interval is by the switching valve 115 passing fluid through the fluid channel 105 in the second flow direction 109 - 2 released and passing fluid through the fluid channel 105 in the first flow direction 109 - 1 fluid technically reversed.

The battery carrier system 100 includes in particular a fluid pump 113 , which with the heat exchanger 103 fluidly connected, in particular by the fluid circuit 108 fluidly connected, is. The fluid pump 113 Pumps fluid through the fluid circuit 108 and by the one with the fluid circuit 108 fluidly connected fluid channel 105 ,

The changeover valve 115 is in particular fluid technology between the fluid pump 113 and the battery carrier 101 arranged to effectively regulate the respective flow direction 109 - 1 . 109 - 2 sure.

The changeover valve 115 stands in particular with the one with the first fluid port 107 - 1 fluidly connected first fluid circuit section 108 - 1 of the fluid circuit 108 in fluidic contact to fluid delivery through the first fluid circuit section 108 -1 to regulate. The changeover valve 115 is in particular with the second fluid port 107 - 2 fluidly connected second fluid circuit section 108 - 2 of the fluid circuit 108 in fluidic contact to fluid supply through the second fluid circuit section 108 - 2 to regulate.

The battery carrier system 100 also has a tempering device 117 for tempering the fluid in the fluid channel 105 on, wherein the tempering 117 with the fluid channel 105 of the heat exchanger 103 fluidly connected, in particular by the fluid circuit 108 fluidly connected, is. The tempering device 117 is formed, the fluid in the fluid channel 105 to temper, in particular to heat or cool. The tempering device 117 is in particular fluid technology between the fluid pump 113 and the switching valve 115 arranged. The tempering device 117 is particularly with respect to through the fluid channel 105 in the first flow direction 109 - 1 flowing fluid upstream of the battery tray 101 arranged.

By means of an in 1 not shown temperature sensor for detecting a temperature of the at least one electric battery module can be a with the tempering 117 electrically connected control 119 determine whether the temperature of the at least one electric battery module exceeds or falls below a temperature threshold value or a temperature threshold value range. If the temperature threshold is undershot, the controller is 119 designed, the tempering 117 to drive to heat the fluid. If the temperature threshold is exceeded, the controller is 119 designed, the tempering 117 to control the cooling of the fluid.

Thus, by the tempering 117 be ensured that during operation of the vehicle, the temperature of the at least one electric battery module is maintained in an advantageous temperature range.

Through the switching valve 115 In the first time interval, the first fluid port becomes 107 - 1 supplied with fluid to the fluid through the fluid channel 105 in the first flow direction 109 - 1 and, in the second time interval, becomes the second fluid port 107 - 2 supplied with fluid to the fluid through the fluid channel 105 in the second flow direction 109 - 2 respectively.

Here is the controller 119 in particular further with the fluid pump 113 and / or the switching valve 115 electrically connected to the fluid pump 113 and / or the switching valve 115 to control.

The control 119 In this case, it is in particular configured to terminate the first time interval after a predetermined duration of the first time interval and to start the second time interval, and / or the control 119 In this case, it is in particular configured to terminate the second time interval after a predetermined duration of the second time interval and to start the first time interval.

The control 119 is in this case designed in particular, the changeover valve 115 for alternately feeding the first fluid nozzle 107 - 1 with fluid in the first flow direction 109 - 1 in the first time interval and the second fluid nozzle 107 - 2 with fluid in the second flow direction 109 - 2 in the second time interval, the controller 119 In particular, it is designed to control a change between the first and second time intervals continuously, in particular periodically.

The control 119 in this case, in particular, the fluid pump 113 , in particular the duration, or pumping speed in the first and / or second flow direction 109 - 1 . 109 - 2 during the first and / or second time interval.

The control 119 in this case, in particular, the changeover valve 115 for fluidic release or fluidic locking of the first or second flow direction 109 - 1 . 109 - 2 to control a flow of fluid through the fluid channel 105 in different flow direction 109 - 1 . 109 - 2 during different time intervals.

Here, the duration of the first and / or second time interval is determined in particular by how far fluid during the first and / or second time interval in the first and / or second flow direction 109 - 1 . 109 - 2 through the fluid circuit 108 , in particular through the fluid channel 105 , flows before there is a change of flow direction 109 - 1 . 109 - 2 comes. In this case, it is particularly advantageous if, during the first and / or second time interval, the fluid passes completely through the fluid channel 105 of the heat exchanger 103 flows to ensure effective temperature control before there is a change in the flow direction 109 - 1 . 109 - 2 comes.

The flow rate, ie the duration of the first and / or second time interval between a change between the time intervals, is dependent, in particular, on the volume of the fluid in the fluid circuit 108 , in particular the length of the fluid circuit 108 and / or the size of the battery carrier 101 ,

By the regular direction reversal of the flow directions 109 - 1 . 109 - 2 in the fluid circuit 108 It prevents it from getting through the battery carrier 101 recorded electric battery modules can build a large temperature difference, and thus the difference between a maximum temperature of an electric battery module of a plurality of electric battery modules and a minimum temperature of another battery module of the plurality of battery modules remains as low as possible. In particular, it is advantageous if a temperature difference between the electric battery modules does not exceed a value of 5 ° C.

Thus, the fluid is alternately in different flow directions 109 - 1 . 109 -2 through the fluid channel 105 of the heat exchanger 103 directed, whereby an improved and constant temperature control of the electric battery modules can be ensured. An advantageous homogeneity of the temperature distribution between the electric battery modules ensures advantageous electrical power and advantageously long service life of the electric battery modules.

The battery carrier system 100 further includes a fluid receptacle 121 for receiving the fluid. The fluid receptacle 121 is with the fluid channel 105 of the heat exchanger 103 fluidly connected to fluid from the fluid receptacle 121 the fluid channel 105 supply and / or order from the fluid channel 105 discharged fluid in the fluid receptacle 121 take. Through the fluid receptacle 121 can be a uniform fluid level in the fluid circuit 108 be ensured. The fluid receptacle 121 is in particular fluid technology between the fluid pump 113 and the switching valve 115 arranged. The fluid receptacle 121 is particularly related to through the fluid circuit 108 in the first flow direction 109 - 1 flowing fluid downstream of the battery tray 101 arranged.

2 shows a schematic view of a battery carrier of a battery carrying system.

As already in the 1 has been detailed, is the battery carrier 101 formed for receiving at least one electric battery module, wherein in the 2 as well as in the 1 the electric battery modules is not shown. The electric battery module, or the plurality of electric battery modules, in particular on the battery carrier 101 be put on.

The battery carrier 101 has a ceiling wall 125 for receiving the at least one electric battery module, and has one of the top wall 125 opposite bottom wall 127 on which in 2 is shown only schematically.

Like in the 2 shown has the battery carrier 101 a variety of module shots 123 on, which can be separated from each other in particular by partitions, and thus form niches, or depressions for the respective electric battery modules. The partitions may in this case in particular along a longitudinal direction, a transverse direction and / or a diagonal direction on the ceiling wall 125 extend.

Like from the 2 can be seen, are ten module shots 123 for receiving in each case an electric battery module in the battery carrier 101 educated. The first module recording 123 - 1 is the first fluid connector 107 - 1 facing, whereas the tenth module recording 123 - 10 the second fluid port 107 - 2 is facing. Like in the 2 are shown, the second to ninth module shots 123 - 2 to 123 - 9 between the first module recording 123 - 1 and the tenth module recording 123 - 10 arranged.

The battery carrier 101 has a heat exchanger 103 with at least one fluid channel 105 which is inside the battery carrier 101 is formed and can be charged by a fluid. The fluid channel 105 is in particular tubular within the battery carrier 101 between the ceiling wall 125 and the bottom wall 127 educated. The fluid channel 105 is here in particular with the ceiling wall 125 thermally coupled, the ceiling wall 125 is designed in particular for receiving the at least one electric battery module.

The heat exchanger 103 has a first fluid port 107 - 1 and a second fluid port 107 - 2 , wherein the first fluid connector 107 - 1 and the second fluid port 107 - 2 through the fluid channel 105 fluidly connected.

Like in the 2 can be seen, are the first and second fluid port 107 - 1 . 107 - 2 on a first page 129 , in particular front side, of the battery carrier 101 arranged.

At the first page 129 , in particular front side of the battery carrier 101 opens the fluid channel 105 each in the first fluid port 107 - 1 , or in the second fluid port 107 - 2 , The first and second fluid nozzles 107 - 1 . 107 - 2 is here with an in 2 not shown fluid circuit 108 fluidly connected.

Through the first fluid connection 107 - 1 can fluid in the fluid channel 105 be introduced and in the first flow direction 109 - 1 through the fluid channel 105 then passed through the second fluid port 107 - 2 from the fluid channel 105 exit and the fluid circuit 108 to be fed again.

Through the second fluid connection 107 - 2 can fluid in the fluid channel 105 be introduced and in the second flow direction 109 - 2 through the fluid channel 105 then passed through the first fluid port 107 - 1 from the fluid channel 105 exit and the fluid circuit 108 to be fed again.

Thus, when changing the flow direction 109 - 1 . 109 - 2 the fluid in different directions through the fluid channel 105 be directed. For details regarding controlling the change of flow directions 109 - 1 . 109 - 2 For this purpose, the detailed comments on 1 directed.

The fluid channel 105 in particular has a first fluid channel section 105 - 1 on, which with the first fluid connector 107 - 1 fluidly connected, and has a to the first fluid channel section 105 - 1 subsequent second fluid channel section 105 - 2 on, which with the second fluid port 107 - 2 fluidly connected.

In this case, the first fluid channel section extends 105 - 1 especially from the first page 129 of the battery carrier 101 to one of the first page 129 remote second side 131 of the battery carrier 101 ,

In particular, the second fluid channel section closes here 105 - 2 to the first fluid channel section 105 - 1 and the second fluid channel section extends 105 - 2 especially from the second page 131 of the battery carrier 101 to the first page 129 of the battery carrier 101 ,

Thereby, that the fluid channel 105 with the two fluid channel sections 105 - 1 . 105 - 2 from the first page 129 to the second page 131 and back to the first page 129 of the battery carrier 101 can cover a large area of the battery tray 101 connected to the fluid channel 105 thermally coupled, effectively tempered, so that all through the battery carrier 101 recorded electrical battery modules can be effectively tempered.

Like in the 2 is shown, the fluid channel 105 inside the battery carrier 101 in particular a meandering course. Due to the meandering course of fluid channel 105 can the available for the temperature control of the electric battery modules surface of the battery tray 101 be increased advantageous. In particular, the fluid channel 105 a meandering, flat and / or honeycomb-shaped course.

3 shows a diagram of a cooling process of electric battery modules, which are accommodated in a battery carrier of the vehicle. For the details of the construction of the battery carrier 101 is based on the statements according to the 2 directed.

Along the abscissa axis 133 the time is applied, in which case in particular a plurality of successive time intervals 134 along the abscissa axis 133 is offered. At a first time interval 134 - 1 closes a second time interval 134 -2, and at the second time interval 134 - 2 closes again a first time interval 134 - 1 at.

Along the ordinate axis 135 is the temperature of electrical battery modules in a battery carrier 101 , or the temperature of fluid in a fluid circuit 108 plotted.

A first turn 137 shows the course of the temperature of the fluid at the first fluid port 107 - 1 of the battery carrier 101 , A second turn 139 shows the course of the temperature of the fluid at the second fluid port 107 - 2 of the battery carrier 101 ,

During the first time interval 134 - 1 the fluid becomes in the first flow direction 109 - 1 through the fluid channel 105 guided. During the second time interval 134 - 2 the fluid becomes in the second flow direction 109 - 2 through the fluid channel 105 guided. After the respective first or second time interval 134 - 1 . 134 - 2 becomes the flow direction 109 - 1 . 109 - 2 of the fluid in the fluid channel 105 changed.

As from the course of the first and second curve 137 . 139 is apparent during the first time interval 134 - 1 the temperature of the coolant at the first fluid port 107 - 1 less than the temperature of the coolant at the second fluid port 107 - 2 , This is because coolant is flowing through the cooling channel 105 Absorbs heat from the electric battery modules.

After the first time interval 134 - 1 becomes the first flow direction 109 - 1 of the fluid in the fluid channel 105 changed so that the fluid during the second time interval 134 - 2 in the opposite second flow direction 109 - 2 through the fluid channel 105 to be led. The change of direction causes cool fluid through the second fluid port 107 - 2 in the fluid channel 105 led and in the second corner 139 shown temperature at the second fluid port 107 - 2 decreases. Since the fluid during the second time interval 134 - 2 in the second flow direction 109 - 2 through the fluid channel 105 led, the fluid absorbs heat from the electric battery modules and in the first turn 137 illustrated temperature at the first fluid port 107 - 1 rises.

In the further changes of the flow directions 109 - 1 . 109 - 2 between a plurality of consecutive first and second time intervals 134 - 1 . 134 - 2 This leads to a periodic change in the temperature profile, as from the curves 137 . 139 is apparent.

The third turn 141 shows the course of the by a temperature sensor on the fifth module recording 123 - 5 of the battery carrier 101 measured temperature of one in the fifth module recording 123 - 5 recorded battery module. As is apparent from the illustration according to the 3 shows up by changing the flow direction 109 - 1 . 109 - 2 between the time intervals 134 the temperature of the fifth module recording 123 - 5 recorded electric battery module constant.

The fourth turn 143 shows the course of the by a temperature sensor on the first module recording 123 - 1 measured temperature of one in the first module recording 123 -1 recorded battery module. Here is the first module recording 123 - 1 the first fluid connector 107 - 1 facing.

The fifth bend 145 shows the course of the by a temperature sensor on the tenth module receptacle 123 - 10 measured temperature of one in the tenth module recording 123 - 10 recorded battery module. Here is the tenth module recording 123 - 10 the second fluid port 107 - 2 facing.

As from the course of the fourth and fifth curve 143 . 145 can be seen, it comes by changing the flow direction 109 - 1 . 109 - 2 , after the appropriate time intervals 134 to a changing drop, or increase in the corresponding temperature of the first or tenth module recording 123 - 1 , respectively. 123 - 10 received electric battery module. Due to the changing waste, or increase due to the changing flow directions 109 - 1 . 109 - 2 can be ensured that the temperature difference between the different battery electrical modules within a minimum temperature difference range 147 emotional.

The sixth and seventh corner 149 . 151 show the course of the first, or tenth module mounting 123 - 1 . 123 - 10 received first or tenth electric battery module according to the prior art, wherein no change of the flow direction 109 - 1 . 109 - 2 according to the subject of the present disclosure.

Like from the course of the sixth and seventh curve 149 . 151 it can be seen increases, if no change in the direction of flow 109 - 1 . 109 - 2 is performed, the temperature of the tenth module recording 123 - 10 continuously, and the temperature of the first module recording 123 - 1 decreases continuously, so that the temperature difference between the different battery modules a maximum temperature difference range 153 reached.

The maximum temperature difference range 153 between the electric battery modules without changing the flow direction 109 - 1 . 109 - 2 according to the prior art is significantly greater than the minimum temperature difference range 147 between the electric battery modules with a change of the flow direction 109 - 1 . 109 - 2 according to the present disclosure.

The high value of the maximum temperature difference range 153 According to the prior art, it is based on that cool fluid flowing in through the first fluid port 107 - 1 first in the first module recording 123 - 1 absorbed first electrical battery module effectively cools, and the cooling effect of the fluid due to the heat absorption of the subsequent battery modules of the first module receiving 123 - 1 until the tenth module recording 123 - 10 decreases continuously, allowing effective cooling of the tenth battery module in the tenth module receptacle 123 - 10 often no longer guaranteed.

By changing the flow direction 109 - 1 . 109 - 2 however, according to the present disclosure, as in the third, fourth and fifth curves 141 . 143 . 145 is shown, a continuous cooling of all ten battery modules can be achieved, wherein the temperature difference within the minimum temperature difference range 147 emotional.

4 shows a diagram of a heating process of an electric battery module in a vehicle. For the details of the construction of the battery carrier 101 is based on the statements according to the 2 directed. For the meaning of in the 4 illustrated axes 133 . 135 , Time intervals 134 , Curves 137 . 139 . 141 . 143 . 145 . 149 . 151 and temperature difference ranges 147 . 153 will be on the 3 directed.

By in the 4 shown heating process is the temperature of all in the module shots 123 . 123 - 1 to 123 - 10 absorbed electrical battery modules reach a minimum temperature as quickly as possible in order to prevent a performance throttling during startup in the context of a cold start.

By changing the flow directions 109 - 1 . 109 - 2 in the fluid channel 105 of the battery carrier 101 it comes to a faster heating of the electric battery modules, as from the 4 evident. As a result, the battery modules work more efficiently and have less capacity losses, which can arise in particular at low temperatures of less than 0 ° C by crystalline formation in the battery module. Thus, a reduced performance of the electric battery module occurring at temperatures below 0 ° C. and a reduced range of the vehicle correlated therewith can be achieved by changing the flow directions 109 -1, 109-2 according to the present disclosure.

As from the course of the first and second curve 137 . 139 it can be seen, the temperature of the fluid is well above the temperature of the module shots 123 , so that effective heating in the module shots 123 recorded electrical battery modules can be ensured.

Like from the curves 137 . 139 is apparent during the first time interval 134 - 1 the temperature of the fluid at the first fluid port 107 - 1 higher than the temperature of the fluid at the second fluid port 107 - 2 because the fluid is flowing through the fluid channel 105 in the first flow direction 109 - 1 continuously gives off heat to the electric battery modules. When changing the flow directions 109 - 1 . 109 - 2 after the appropriate time intervals 134 the course of the temperatures changes.

The third turn 141 shows the course of the by a temperature sensor on the fifth module recording 123 - 5 measured temperature of one in the fifth module recording 123 - 5 received electric battery module. As is apparent from the illustration according to the 4 shows increases by the continuous change of the flow direction 109 - 1 . 109 - 2 through the fluid channel 105 led fluid the temperature of the fifth module recording 123 - 5 recorded electric battery module constantly.

The fourth turn 143 shows the course of the temperature of one in the first module recording 123 - 1 recorded battery module. The fifth bend 145 shows the course of the temperature of a the tenth module recording 123 - 10 received electric battery module.

As from the course of the fourth and fifth curve 143 . 145 can be seen, it comes by changing the flow direction 109 - 1 . 109 - 2 after the appropriate time intervals 134 to a changing drop, or increase in the corresponding temperature of the first or tenth module recording 123 - 1 , respectively. 123 - 10 received electric battery module. The alternating drop or rise can ensure that the temperature difference between different electric battery modules is within a minimum temperature difference range 147 moves, so that a uniform increase in the temperature is ensured at all electric battery modules.

The sixth and seventh corner 149 . 151 shows the course of the temperature of in the first and tenth module recording 123 - 1 . 123 - 10 recorded electric battery modules without a change of the flow direction 109 - 1 . 109 - 2 according to the prior art.

Like from the course of the sixth and seventh curve 149 . 151 can be seen increases with a constant flow of the fluid in the first flow direction 109 - 1 through the fluid channel 105 the temperature of the first module recording 123 - 1 recorded first battery module very strong, while the temperature of the tenth module recording 123 - 10 absorbed tenth electric battery module increases so that the temperature difference between different battery electrical modules within a maximum temperature difference range 153 which is significantly larger than the minimum temperature difference range 147 is.

When changing the flow direction 109 - 1 . 109 - 2 in contrast, according to the present disclosure, that in the first module receptacle 123 - 1 recorded first electrical battery module and in the tenth module recording 123 - 10 recorded tenth electric battery module heated significantly more uniformly, since the heat of the fluid after flowing through the first fluid port 107 - 1 to the first battery module and after flowing through the second fluid port 107 - 2 is delivered to the tenth battery module.

Thus, in a heating operation according to the present disclosure, according to the third, fourth and fifth curves 141 . 143 . 145 uniform heating of all ten electric battery modules can be ensured.

5 shows a schematic representation of a method for controlling the temperature of at least one electric battery module in a vehicle.

The procedure 200 comprises charging as the first method step 201 the first fluid nozzle 107 - 1 with the fluid in a first time interval 134 - 1 through the switching valve 115 to move the fluid through the fluid channel 105 in a first flow direction 109 - 1 respectively.

The procedure 200 comprises charging as a second method step 203 the second fluid nozzle 107 - 2 with the fluid in a second time interval 134 - 2 through the switching valve 115 to move the fluid through the fluid channel 105 in a second flow direction 109 - 2 which of the first flow direction 109 - 1 is contrary to lead.

LIST OF REFERENCE NUMBERS

100

Battery support system

101

battery carrier

103

heat exchangers

105

fluid channel

105-1

First fluid channel section

105-2

Second fluid channel section

107-1

First fluid connection

107-2

Second fluid connection

108

Fluid circuit

108-1

First fluid circuit section

108-2

Second fluid circuit section

109-1

First flow direction

109-2

Second flow direction

113

fluid pump

115

switching valve

117

tempering

119

control

121

Fluid containment vessel

123

module shots

123-1

First module recording

123-2

Second module recording

123-3

Third module recording

123-4

Fourth module recording

123-5

Fifth module recording

123-6

Sixth module recording

123-7

Seventh module holder

123-8

Eighth module recording

123-9

Ninth module recording

123-10

Tenth module recording

125

ceiling wall

127

bottom wall

129

First side of the battery carrier

131

Second side of the battery tray

133

abscissa

134

time interval

134-1

First time interval

134-2

Second time interval

135

axis of ordinates

137

First curve: temperature of the fluid at the first fluid port

139

Second curve: temperature of the fluid at the second fluid port

141

Third curve: temperature of a battery module accommodated in the fifth module receptacle

143

Fourth curve: Temperature of a battery module picked up in the first module receptacle

145

Fifth curve: temperature of a battery module picked up in the tenth module receptacle

147

Minimum temperature difference range

149

Sixth curve: temperature of a battery module accommodated in the first module receptacle according to the prior art

151

Seventh curve: temperature of a battery module accommodated in the tenth module receptacle according to the prior art

153

Maximum temperature difference range

200

Method for tempering at least one electric battery module

201

Process step: Loading the first fluid nozzle with fluid

203

Process step: Charging the second fluid nozzle with fluid

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 102013206770 A1 [0003]

Claims (16)

A battery carrier system (100) for receiving at least one electric battery module in a vehicle, comprising: a battery carrier (101) for receiving the at least one electric battery module; a heat exchanger (103) having a fluid channel (105), wherein the fluid channel (105) is formed within the battery carrier (101) and can be charged by a fluid in order to temper the electric battery module, the heat exchanger (103) having a first fluid connection (107 -1) and a second fluid port (107-2), wherein the first fluid port (107-1) and the second fluid port (107-2) are fluidly connected through the fluid channel (105); and a change-over valve (111) which is fluidically connected and formed with the first fluid port (107-1) and the second fluid port (107-2), the first fluid port (107-1) in a first time interval (134, 134-1) to supply the fluid to pass the fluid through the fluid channel (105) in a first flow direction (109-1) and in a second time interval (134, 134-2) the second fluid port (107-2) with the fluid to feed the fluid through the fluid channel (105) in a second flow direction (109-2) which is opposite to the first flow direction (109-1). Battery carrier system (100) according to Claim 1 comprising a fluid pump (113) configured to pump fluid through a fluid circuit (108), the fluid channel (105) being fluidly connected to the fluid circuit (108). Battery carrier system (100) according to Claim 1 or 2 wherein the switching valve (115) is adapted to fluidly release the passage of fluid through the fluid channel (105) in the first flow direction (109-1) in the first time interval (134, 134-1) and in the first time interval (134, 134-1). 134-1) fluidically reversing the passage of fluid through the fluid channel (105) in the second flow direction (109-2), and being configured to direct fluid through the fluid channel (134, 134-2) in the second time interval (134, 134-2). 105) in the second flow direction (109-2), and in the second time interval (134, 134-2), fluidically inverting the passage of fluid through the fluid channel (105) in the first flow direction (109-1). A battery support system (100) according to any one of the preceding claims, wherein the battery support system (100) includes a controller (119) for controlling the changeover valve (115), the controller (119) being configured after a predetermined duration of the first time interval (134, 134 -1) to terminate the first time interval (134, 134-1) and begin the second time interval (134, 134-2), and / or wherein the controller (119) is configured after a predetermined duration of the second time interval (134 , 134-2) terminate the second time interval (134, 134-2) and begin the first time interval (134, 134-1). Battery carrier system (100) according to Claim 4 wherein the controller (119) is formed, the switching valve (115) for alternately charging the first fluid nozzle (107-1) with fluid in the first flow direction (109-1) in the first time interval (134, 134-1) and second fluid port (107-2) with fluid in the second flow direction (109-2) in the second time interval (134, 134-2) to control, wherein the controller (119) is in particular formed, a change between the first and second time interval (134, 134-1, 134-2) continuously, in particular periodically, to control. Battery carrier system (100) according to one of the preceding claims, wherein the battery carrier system (100) comprises a temperature control device (117) for controlling the temperature of the fluid in the fluid channel (105), wherein the temperature control device (117) with the fluid channel (105) of the heat exchanger (103). fluidly connected and adapted to temper the fluid in the fluid channel (105), in particular to heat or cool. Battery carrier system (100) according to Claim 6 wherein the battery support system (100) comprises a controller (119) for controlling the temperature control device (117), wherein the battery support system (100) comprises a temperature sensor (16) for detecting a temperature of the at least one battery electric module, wherein the controller (119) is formed in that the tempering device (117) is used to heat the fluid when the detected temperature of the at least one electric battery module falls below a first temperature threshold, and / or wherein the controller (119) is designed to control the tempering device (117) to cool the fluid, if the detected temperature of the at least one battery electric module exceeds a second temperature threshold. A battery support system (100) according to any one of the preceding claims, wherein the battery support system (100) includes a fluid receptacle (121) for receiving the fluid, and wherein the fluid receptacle (121) is fluidly connected to the fluid passage (105) of the heat exchanger (103) To supply fluid from the fluid receptacle (121) to the fluid passage (105) and / or to receive fluid discharged from the fluid passage (105) in the fluid receptacle (121). Battery carrier system (100) according to one of the preceding claims, wherein the fluid channel (105) within the battery carrier (101) has a meandering, flat and / or honeycomb-shaped course. Battery carrier system (100) according to any one of the preceding claims, wherein the first and second fluid nozzles (107-1, 107-2) on a first side (129), in particular front side, of the battery carrier (101) are arranged. Battery carrier system (100) according to Claim 10 wherein the fluid channel (105) comprises a first fluid channel section (105-1) fluidly connected to the first fluid connector (107-1) and a second fluid channel section (105-2) connected to the second fluid connector (107-2) fluidly connected, wherein the first fluid channel section (105-1) extends from a first side (129) of the battery carrier (101) to a second side (131) of the battery carrier (101) facing away from the first side (129) the second fluid channel section (105-2) adjoins the first fluid channel section (105-1), and wherein the second fluid channel section (105-2) extends from the second side (131) of the battery support (101) to the first side (129) of the battery carrier (101). Battery carrier system (100) according to any one of the preceding claims, wherein the battery carrier (101) has a top wall (125) for receiving the at least one electric battery module, wherein the battery carrier (101) has a bottom wall (127) facing away from the top wall (125), and wherein the fluid channel (105) is formed between the top wall (125) and the bottom wall (127). Method (200) for tempering at least one electric battery module in a vehicle, wherein the electric battery module is accommodated in a battery carrier system (100) of the vehicle, wherein the battery carrier system (100) has a battery carrier (101) for receiving the at least one electric battery module, wherein the battery carrier system (100) has a heat exchanger (103) with a fluid channel (105), wherein the fluid channel (105) is formed within the battery carrier (101) and can be charged by a fluid in order to temper the electric battery module, wherein the heat exchanger ( 103) has a first fluid port (107-1) and a second fluid port (107-2), wherein the first fluid port (107-1) and the second fluid port (107-2) are fluidly connected through the fluid channel (105), and wherein the battery support system (100) comprises a switching valve (115) which is connected to the first fluid connection (107-1) and the second fluid connection (10 7-2) is fluidically connected and configured to charge the fluid to the first and / or second fluid connection (107-1, 107-2), the method (200) comprising the following method steps: Charging (201) the first fluid stub (107-1) with the fluid in a first time interval (134, 134-1) through the switching valve (115) to move the fluid through the fluid channel (105) in a first flow direction (109-1 ) respectively; and Charging (203) the second fluid nozzle (107-2) with the fluid in a second time interval (134, 134-2) through the switching valve (115) to move the fluid through the fluid channel (105) in a second flow direction (109-2 ) which is opposite to the first flow direction (109-1). Method (200) according to Claim 13 wherein the battery support system (100) includes a controller (119) for controlling the switch valve (115), wherein loading (201) the first fluid nozzle (107-1) during the first time interval (134, 134-1) after a predetermined duration the first time interval (134, 134-1) is terminated by the controller (119) and then the charging (203) of the second fluid nozzle (107-2) is started during the second time interval (134, 134-2), and / or the charging (203) of the second fluid nozzle (107-2) during the second time interval (134, 134-2) after a predetermined duration of the second time interval (134, 134-2) terminated by the controller (119) and then the loading ( 201) of the first fluid nozzle (107-1) is started during the first time interval (134, 134-1). Method (200) according to Claim 13 or 14 wherein charging (201) of the first fluid port (107-1) during the first time interval (134, 134-1) and charging (203) of the second fluid port (107-2) during the second time interval (134, 134-2 ) is carried out alternately, in particular periodically. A cooling system for a vehicle, comprising a fluid-carrying cooling circuit, wherein in the cooling circuit, a vehicle radiator for cooling a vehicle drive is arranged, and wherein the battery support system (100) according to one of the preceding Claims 1 to 12 is fluidly connected to the fluid-conducting cooling circuit, so that the heat exchanger (103) can be flowed through by at least a portion of the fluid of the fluid-carrying cooling circuit in order to temper the electric battery.

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