EP4568844A1 - Kühlsystem zum kühlen einer leistungselektronik und/oder zur kühlmitteltemperierung - Google Patents
Kühlsystem zum kühlen einer leistungselektronik und/oder zur kühlmitteltemperierungInfo
- Publication number
- EP4568844A1 EP4568844A1 EP23751635.6A EP23751635A EP4568844A1 EP 4568844 A1 EP4568844 A1 EP 4568844A1 EP 23751635 A EP23751635 A EP 23751635A EP 4568844 A1 EP4568844 A1 EP 4568844A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circuit
- power electronics
- valve
- cooling system
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0212—Condensation eliminators
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
- H05K7/20872—Liquid coolant without phase change
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/00307—Component temperature regulation using a liquid flow
Definitions
- Cooling system for cooling power electronics and/or for coolant temperature control
- the invention relates to a cooling system, preferably for a motor vehicle, in particular an autonomous or semi-autonomous motor vehicle (e.g. truck or bus).
- the cooling system is used in particular to cool power electronics. Additionally or alternatively, the cooling system is suitable for coolant temperature control to avoid condensation formation on or in the power electronics.
- the invention also relates to an associated method.
- An object of the invention is to provide an efficient and/or structurally simple, particularly preferably safe, option for cooling power electronics and/or for coolant temperature control to avoid condensation formation on or in power electronics, in particular for power electronics for data processing for autonomous or semi-autonomous driving.
- the invention relates to a cooling system, preferably for a motor vehicle, in particular an autonomous or semi-autonomous motor vehicle, for example an autonomous or semi-autonomous truck or bus.
- the cooling system comprises a first circuit (e.g. refrigeration circuit), preferably a circuit (e.g. refrigeration circuit) of an air conditioning system, in particular for cooling an interior of the motor vehicle (e.g. a driver and/or passenger interior).
- the first circuit serves in particular to carry a (e.g. gaseous or liquid) cooling medium. It is possible that the cooling medium expediently changes its physical state during operation of the cooling system.
- the cooling system comprises at least one power electronics, preferably at least one control device and/or at least one computer (e.g. at least one chip, processor and/or one or more other electronic components, etc.), preferably for data processing for autonomous or semi-autonomous driving of the motor vehicle.
- the computer can be, for example, a high-performance computer.
- a second circuit is provided, which is in thermal contact with the power electronics at least indirectly, in particular via suitable heat transfer surfaces.
- the first circuit and the second circuit (20) are thermally connected to one another via a heat exchanger (X1, 30), preferably a plate heat exchanger or a chiller, in particular so that the first circuit can be used to generate cooling capacity for the second circuit.
- a valve for coolant temperature control in particular to avoid condensation formation on or in the power electronics, is arranged in the second circuit. Coolant temperature control, i.e.
- the targeted adjustment of the required temperature of the coolant can be achieved with the help of the valve by adjusting the properties of the coolant flow that is at least temporarily in thermal contact with the power electronics as required, in particular by a combination of coolant flows that have different flow paths or circuits flow through.
- the volume flow and/or the temperature of the coolant flow can be specifically adjusted, which at least temporarily releases heat to or absorbs heat from the power electronics.
- a particularly efficient, needs-based temperature control of the power electronics can be achieved through suitable fluidic interconnection of the first and second circuits.
- the cooling system can therefore have a valve for coolant temperature control to avoid condensation formation on or in the power electronics, in order to advantageously maintain a temperature on or in the power electronics substantially above a dew point temperature.
- a second circuit is provided for cooling the power electronics and/or for coolant temperature control to avoid condensation formation on or in the power electronics, in order to advantageously maintain a temperature on or in the power electronics substantially above a dew point temperature.
- the cooling system can expediently have one or a plurality, in particular more than two, cooling circuits.
- the second circuit for example, serves in particular to carry a (e.g. gaseous or liquid) coolant.
- One advantage is e.g. B. that an interior of the motor vehicle can be cooled by means of at least a first circuit, preferably a refrigeration circuit of an air conditioning system.
- the at least one first or at least one further circuit is a battery cooling circuit, in particular for cooling a (e.g. rechargeable) battery device (e.g. battery device, etc.).
- the battery device can e.g. B. serve to supply energy to an electric motor for driving the motor vehicle.
- the battery cooling circuit is preferably a coolant circuit.
- the battery cooling circuit is preferably an accumulator cooling circuit.
- At least one cooling circuit e.g. B. be an air conditioning cooling circuit or a battery cooling circuit (e.g. accumulator cooling circuit).
- circuit and/or the further circuit may be an independent (e.g. active) circuit (e.g. refrigerant circuit), preferably independent and/or decoupled from one or more other circuits.
- independent circuit e.g. refrigerant circuit
- a cooling circuit (expediently active or passive) that is already present in motor vehicles can be used to generate cooling power for a cooling circuit, in particular the second circuit, in order to cool and/or control the temperature of the power electronics.
- the cooling system e.g. B. can be set up not only for cooling the power electronics, but preferably also for coolant temperature control in order to avoid condensation formation on or in the power electronics, so that advantageously a temperature on or in the power electronics can be kept substantially above a dew point temperature.
- first circuit and the second circuit may be connected to one another, in particular thermally, via a heat exchanger, preferably a plate heat exchanger (e.g. coupled), preferably in such a way that the first circuit can be used to generate cooling capacity for the second circuit.
- a heat exchanger preferably a plate heat exchanger (e.g. coupled)
- the first circuit can be used to generate cooling capacity for the second circuit.
- one of the cooling circuits used e.g. B. be thermally connected to an additional circuit via a (e.g. further, in particular second) heat exchanger, preferably a chiller (e.g. evaporator), preferably so that the additional circuit is used to generate and / or provide cooling capacity for the Circuit and/or the further circuit can be used.
- a (e.g. further, in particular second) heat exchanger preferably a chiller (e.g. evaporator), preferably so that the additional circuit is used to generate and / or provide cooling capacity for the Circuit and/or the further circuit can be used.
- an expansion element is connected upstream of the heat exchanger or that the heat exchanger is designed as a condenser and/or evaporator.
- At least one of the circuits has at least one expansion element or a compressor.
- the expansion element is expediently assigned to the first circuit, in particular the cooling medium of the first circuit can flow through it.
- the expansion element is preferably an expansion valve.
- the further circuit in particular the second circuit, can e.g. B. include a valve for coolant temperature control in order to avoid condensation formation on or in the power electronics.
- the valve can e.g. B. be a directional control valve and / or be set up to bring together coolant at different temperatures, particularly in the second circuit.
- the valve can have at least three connections and/or have at least two switching positions and/or be designed as a 3-way valve, in particular a 3/2-way valve.
- the cooling circuit in particular the second circuit, can z. B. include a cooling device (e.g. a cooler with a fan).
- the cooling device serves in particular to cool the coolant of the second circuit.
- the cooling device can e.g. B. a liquid-air heat exchanger, preferably with a fan, the performance of which can be advantageously increased by the fan.
- a cooling circuit in particular the second circuit, to comprise a first line section, which is z. B. can extend upstream of the power electronics between the heat exchanger and the power electronics.
- a cooling circuit in particular the second circuit z. B. include a second line section, which is z. B. can extend downstream of the power electronics between the power electronics and the heat exchanger.
- the first line section can thus be coupled, for example, to an input side of the power electronics and to an output side of the heat exchanger, with alternatively or additionally the second line section z. B. can be coupled to an output side of the power electronics and to an input side of the heat exchanger.
- a third line section to connect the second line section to the valve and/or to form a bypass line in order to supply coolant (expediently of the second circuit) to the valve and/or into the first line section and preferably bypassing the cooling device and/or the heat exchanger thus (particularly indirectly) leading back to power electronics.
- the third line section is expediently part of the second circuit.
- the valve can e.g. B. be integrated into the first and / or third line section.
- the third line section branch off from the second line section at a branch point.
- the branch point is preferably downstream of the power electronics and z. B. positioned upstream of the cooling device and/or the heat exchanger.
- the circuit and/or the further circuit can e.g. B. include a pump.
- the pump can e.g. B. be set up to, e.g. B. for coolant temperature control to avoid condensation formation on or in the power electronics, to change a coolant heat flow or coolant volume flow, preferably to optionally increase and / or reduce.
- the change can e.g. B. can be realized by changing the performance of the pump.
- the pump is preferably integrated into the first line section and/or upstream of the power electronics and z. B. positioned downstream of the valve and/or downstream of the heat exchanger and/or the cooling device.
- the valve preferably comprises a first inlet (which can preferably be connected to an outlet of the heat exchanger by means of a first section of the first line section) and/or a second inlet (which can preferably be connected to the second line section by means of the third line section).
- the valve can expediently comprise an output in order to expediently direct coolant for coolant temperature control from the first inlet and/or from the second inlet to the power electronics and/or into a second section of the first line section, depending on the valve switching positions.
- the first inlet can be used in particular to receive coolant cooled by means of a cooling circuit, in particular the first circuit and/or the cooling device.
- the second input can be used in particular to receive coolant warmed up by the power electronics.
- the first input and/or the second input and/or the output may have at least one of the following: an open position in which it is fully open, a closed position in which it is fully closed, and/or at least one intermediate position in which it is partially open.
- the valve for coolant temperature control prefferably has a switching position in which the first input is completely closed and the second input is completely or partially open, preferably such that coolant (in particular warmed up by the power electronics) flows between the output, the power electronics and can circulate to the second inlet, but an inflow of coolant via the first inlet and preferably thus from the cooling device and / or from the heat exchanger is prevented.
- coolant in particular warmed up by the power electronics
- the valve for coolant temperature control can have a switching position in which the first input is completely closed and the second input is completely or partially open, preferably such that coolant (in particular warmed up by the power electronics) flows between the output, the power electronics and can circulate to the second inlet, but an inflow of coolant via the first inlet and preferably thus from the cooling device and / or from the heat exchanger is prevented.
- This can z.
- a (“small”) circuit or circuit mode can be made possible, which includes the power electronics, the valve (namely the preferably completely or partially opened second
- the valve can be used for coolant temperature control, e.g. B. have a switching position in which the first input is partially open and the second input is completely or partially open, preferably in such a way that (in particular warmed up by the power electronics) Coolant can circulate between the output, the power electronics and the second input, but also an inflow of coolant (in particular cooled by means of the first circuit and / or the cooling device) via the first input and preferably thus from the cooling device and / or the heat exchanger is permitted .
- This can z. B.
- a circuit or circuit mode can be made possible, which includes the power electronics, the valve (namely preferably the first at least partially opened input and the second at least partially opened input) and the cooling device and / or the heat exchanger and z. B. includes the pump.
- the valve for coolant temperature control prefferably has a switching position in which the first input is completely open, preferably such that coolant (cooled by means of a cooling circuit, in particular by means of the first circuit and / or the cooling device) between the output of the power electronics and the first entrance.
- the second input can z. B. be completely closed or only partially and / or intermittently opened. This allows a (“large”) circuit or circuit mode to be made possible, which includes the power electronics, the valve (namely preferably the fully opened first inlet) and the cooling device and/or the heat exchanger and e.g. B. includes the pump, preferably with the second input essentially closed.
- the cooling device can e.g. B. be integrated into the second line section, positioned downstream of the power electronics and/or downstream of the branch point, and/or positioned upstream of the heat exchanger and/or the second input.
- the coolant of a further cooling circuit in particular the second circuit, can in particular absorb heat from the power electronics and use the heat for coolant temperature control to avoid condensation formation on or in the power electronics, preferably in combination with coolant cooled by means of the first circuit and / or the cooling device.
- the second circuit can therefore preferably provide at least three different circuit modes, namely preferably a first circuit mode in order to expediently increase the coolant temperature for the power electronics, a second circuit mode in order to expediently increase the coolant temperature for the power electronics reduce, and a third circuit mode that combines the first and second circuit modes.
- the valve is a thermostatic valve and/or a self-adjusting valve for coolant temperature control and thus preferably forms a non-electronically controlled and/or regulated valve.
- the valve can e.g. B. include an expansion material or expansion fluid that reacts to temperature fluctuations, preferably to influence a coolant flow, e.g. B. to block completely, to let through completely and/or to let through only partially.
- the valve can e.g. B. include a wax insert and slider.
- the valve can e.g. B. be set up for temperature fixed value control, preferably to keep the coolant temperature for the power electronics in a predetermined temperature range.
- the predetermined (e.g. preset) temperature is preferably chosen so that falling below the dew point can be ruled out in all operating states.
- the valve can e.g. B. be a mechanical valve.
- valve it is also possible for the valve to be an electrical valve, in particular an electronically controlled and/or regulated valve.
- the cooling system can e.g. B. include an electronic control and / or regulating device which is set up to control the valve and / or the pump, preferably for cooling the power electronics and / or for coolant temperature control to avoid condensation formation on or in the power electronics and / or to regulate.
- an electronic control and / or regulating device which is set up to control the valve and / or the pump, preferably for cooling the power electronics and / or for coolant temperature control to avoid condensation formation on or in the power electronics and / or to regulate.
- the control and/or regulating device can in particular be set up to control and/or regulate the valve and/or the pump as a function of at least one of the following: a temperature and/or a humidity of the ambient air of the power electronics, a temperature or in the power electronics (e.g. a surface temperature of the power electronics), a coolant temperature of at least one cooling circuit, in particular the second circuit (e.g. upstream and/or downstream of the power electronics) and/or a coolant temperature of the first circuit .
- the cooling system can e.g. B. include suitable sensors.
- the control and/or regulating device can, for. B. be set up to carry out an adjustment with at least one dew point curve and / or to keep the coolant temperature in a predetermined temperature range. It is possible that the control and/or regulating device forms part of the power electronics and can therefore preferably be cooled as required by a cooling circuit, in particular by the second circuit, or is made available in addition to the power electronics and, for. B. is decoupled from the second circuit (appropriately thermally).
- the first circuit can e.g. B. include an evaporator (e.g. consumer).
- evaporator e.g. consumer
- the evaporator is preceded by an expansion element (e.g. an expansion valve), which, for example. B. is assigned to the first circuit, in particular the cooling medium of the first circuit can flow through it.
- an expansion element e.g. an expansion valve
- the first circuit prefferably has two expansion elements, wherein preferably one expansion element can be assigned to the heat exchanger and preferably one expansion element can be assigned to the evaporator.
- One of the cooling circuits in particular the first circuit, can e.g. B. include a compressor and / or a capacitor.
- a cooling circuit in particular the first cooling circuit, is preferably used to generate cooling power (expediently cold generation) for the second circuit, so that cold from the first circuit can preferably be used by means of the second circuit to cool the power electronics.
- cooling circuits are a battery cooling circuit, this can (in particular in addition to the battery device) z.
- B. include at least one electronic component (preferably control electronics, at least one chip, processor, at least one power converter (e.g. inverter) and / or one or more other electronic components, etc.).
- electronic component preferably control electronics, at least one chip, processor, at least one power converter (e.g. inverter) and / or one or more other electronic components, etc.
- the battery cooling circuit can in particular be set up to cool the at least one electronic component.
- the at least one electronic component comprises control electronics (e.g. at least one chip, processor, computer, etc.), preferably for controlling the battery device.
- the at least one electronic component can z. B. include a power converter (e.g. inverter), in particular for a motor vehicle air conditioning system.
- a power converter e.g. inverter
- one of the circuits, in particular the first circuit is a refrigeration circuit, in particular is a closed circuit and/or has a (in particular liquid or gaseous) refrigeration medium.
- the first circuit is preferably an active refrigeration circuit (e.g. refrigerant circuit, in particular for active refrigeration.
- active refrigeration circuit e.g. refrigerant circuit, in particular for active refrigeration.
- the first circuit is preferably a refrigeration circuit of an air conditioning system, in particular a motor vehicle air conditioning system.
- the second circuit is a closed circuit, is a high-temperature circuit and/or has a coolant (in particular liquid or gaseous).
- the second circuit is a passive circuit and/or e.g. B. has no compressor, no condenser, no evaporator and / or no expansion element.
- the power electronics can in particular include a high-performance computer, useful for data processing for autonomous or semi-autonomous driving of the motor vehicle.
- the coolant temperature control serves in particular to maintain a temperature on or in the power electronics essentially above a dew point temperature, in particular to avoid condensation formation on or in the power electronics.
- the coolant temperature control can preferably be achieved without reducing a coolant volume flow.
- the coolant temperature of the second circuit preferably on or (appropriately shortly) before entering the power electronics, to serve as a controlled variable for controlling the valve and/or the pump.
- the cooling device (expediently a cooler with a fan) provides in particular passive cooling.
- the invention also includes a motor vehicle, preferably an autonomous or semi-autonomous motor vehicle, with a cooling system as disclosed herein.
- the motor vehicle is preferably a truck or bus that drives (in particular autonomously or semi-autonomously).
- the invention also includes a method for a cooling system, preferably a cooling system as disclosed herein.
- the method may in particular be carried out with a cooling system as disclosed herein.
- the cooling system comprises a first circuit, preferably a circuit (e.g. refrigeration circuit) of an air conditioning system, in particular for cooling an interior of the motor vehicle (e.g. a driver and/or passenger interior), and power electronics, preferably at least one control unit and/or at least one computer, preferably for data processing for autonomous or semi-autonomous driving of the motor vehicle.
- the cooling system also includes a second circuit which cools the power electronics (in particular by means of a coolant) and/or which carries out coolant temperature control in order to avoid condensation formation on or in the power electronics.
- FIG. 1 shows a cooling system according to first embodiments of the invention
- FIG. 2 shows a cooling system according to second embodiments of the invention
- FIG. 3 shows a detailed view of the cooling system, in particular a valve for coolant temperature control.
- Figures 1 and 2 show a cooling system 100 according to a first and a second exemplary embodiment of the invention, with Figure 3 showing a detailed view of the respective cooling system 100, in particular a valve 22 for coolant temperature control.
- the cooling system 100 is preferably part of a motor vehicle, e.g. B. an autonomous or semi-autonomous bus or truck.
- the cooling system 100 includes power electronics 21, preferably at least one control device and/or at least one computer (e.g. at least one chip, processor, etc.), preferably for data processing for autonomous or semi-autonomous driving of the motor vehicle.
- the cooling system 100 includes a circuit 20 for cooling the power electronics 21.
- the circuit 20 expediently serves to carry a (e.g. liquid or gaseous) coolant.
- the cooling system 100 is characterized in particular by the fact that the circuit 20 includes a valve 22 for coolant temperature control to avoid condensation formation on or in the power electronics 21.
- the cooling system 100 can also include at least one further circuit 10, which is only shown schematically in FIG. 1, e.g. B. a refrigeration or cooling circuit, expediently with or without a cooling device (e.g. cooler with fan), compressor (e.g. compressor), condenser, evaporator and / or expansion element.
- a refrigeration or cooling circuit expediently with or without a cooling device (e.g. cooler with fan), compressor (e.g. compressor), condenser, evaporator and / or expansion element.
- the further circuit 10 can z. B. be an expediently independent (in particular passive) cooling circuit (e.g. without a condenser and / or without a compressor (e.g. compressor), but in particular with a cooling device, in particular a cooler with a fan).
- an expediently independent (in particular passive) cooling circuit e.g. without a condenser and / or without a compressor (e.g. compressor), but in particular with a cooling device, in particular a cooler with a fan).
- the further circuit 10 can also be an appropriately independent (in particular active) refrigeration circuit (e.g. with an expansion element, compressor (e.g. compressor), compressor and/or condenser).
- an appropriately independent (in particular active) refrigeration circuit e.g. with an expansion element, compressor (e.g. compressor), compressor and/or condenser).
- the further circuit 10 can also z. B. be a circuit, in particular a refrigeration circuit of an air conditioning system for cooling an interior of the motor vehicle.
- the further circuit 10 thus forms z. B. an air conditioning refrigeration circuit.
- the further circuit 10 can be a battery cooling circuit, in particular for cooling a battery device (e.g. battery device) and/or its control electronics (e.g. at least one chip, processor and/or one or more other electronic components, etc.) .
- the battery device can e.g. B. serve to supply energy to an electric motor for driving the motor vehicle.
- the further circuit 10 is optional and can z. B. be replaced by a cooling device 24 in the circuit 20 or vice versa.
- exemplary embodiments with the cooling device 20 and with the further circuit 10 are also possible.
- the further circuit 10 can be e.g. B. be a conventional air conditioning refrigeration circuit or a conventional battery cooling arrangement, by means of which all components required to generate refrigeration and / or cooling power (in particular cooling device, compressor and / or condenser) of an active refrigeration circuit or passive cooling circuit can be present and It is therefore advantageous not to have to be installed again or even to be operated electrically.
- the further circuit 10 and the circuit 20 are expediently thermally connected to one another via a heat exchanger Cooling) can be used for circuit 20.
- the circuit 20 can z. B. include an expansion tank 50 (e.g. expansion tank) for the coolant of the circuit 20.
- the further circuit 10 can also optionally include an expansion tank (e.g. expansion tank).
- the valve 22 is preferably a 3-way valve. It can e.g. B. have at least three connections 22.1, 22.2, 22.3 and/or have at least two switching positions and z. B. be designed as a 3/2-way valve. In particular, the valve 22 can be set up to bring together coolant at different temperatures.
- the circuit 20 can also have an optional cooling device 24 (e.g. cooler with fan), expediently in addition to the further circuit 10 or instead of the further circuit 10. It follows from this that the cooling device 24 is optional and the further circuit 10 is optional .
- an optional cooling device 24 e.g. cooler with fan
- the circuit 20 comprises a first line section A and a second line section B.
- the first line section A expediently extends upstream of the power electronics 21 between the heat exchanger X1 and/or cooling device 24 and the power electronics 21.
- the second line section B expediently extends downstream of the power electronics 21 between the power electronics 21 and the heat exchanger X1 and/or the cooling device 24.
- the power electronics 21 and the heat exchanger X1 and / or the cooling device 24 can therefore z. B. be positioned between the first line section A and the second line section B, so that the first line section A corresponds to a line section upstream of the power electronics 21 and downstream of the heat exchanger X1 and / or the cooling device 24 and / or the second line section B corresponds to a line section downstream of the power electronics 21 and upstream of the heat exchanger X1 and / or the cooling device 24 corresponds.
- a third line section C of the circuit 20 is set up to form a bypass line and z. B. to connect the second line section B with the valve 22 in order to lead coolant to the valve 22 and/or into the first line section A, bypassing the cooling device 24 and/or the heat exchanger X1, and preferably back to the power electronics 21.
- the valve 22 is expediently integrated into the first line section A and the third line section C.
- the third line section C branches off from the second line section B at a branch point 25.
- the branch point 25 is downstream of the power electronics 21 and z. B. positioned upstream of the cooling device 24 and / or the heat exchanger X1.
- the cooling device 24 is preferably integrated into the second line section B and / or downstream of the branch point 25 and z. B. positioned upstream of the heat exchanger X1.
- the circuit 20 also includes a pump 23, which can expediently be integrated into the first line section A.
- the pump 23 can z. B. be integrated into the circuit 20 upstream of the power electronics 21 and downstream of the valve 22 and/or downstream of the heat exchanger X1 and/or the cooling device 24.
- the coolant of the circuit 20 can in particular absorb heat from the power electronics 21 and use the heat for coolant temperature control to avoid condensation formation on or in the power electronics 21, preferably in combination with coolant cooled by means of the heat exchanger X1 and/or the cooling device 24.
- the valve 22 includes a first input 22.1, which is connected to an output of the heat exchanger X1 and/or the cooling device 24 by means of a first section A1 of the first line section A.
- the valve 22 includes a second inlet 22.2, which is connected to the second line section B by means of the third line section C.
- the valve 22 includes an output 22.3, depending on valve switching positions for coolant temperature control (expediently warmed up by means of the power electronics 21 and/or cooled by means of the further circuit 10 and/or the cooling device 24) via a second section A2 of the first line section A forward to the power electronics 21.
- the first input 22.1 and/or the second input 22.2 and optionally the output 22.3 can z. B. have an open position in which it is completely open, have a closed position in which it is completely closed, and / or have at least an intermediate position in which it is partially opened.
- the valve 22 can have different switching positions in order to selectively allow through and/or block coolant heated by the power electronics 21 and coolant cooled by the further circuit 10 and/or the cooling device 24 for coolant temperature control.
- the valve 22 can z. B. have a switching position in which the first input 22.1 is completely closed and the second input 22.2 is completely or partially open, preferably so that coolant (in particular warmed up by the power electronics 21) between the output 22.3, the power electronics 21 and the second Input 22.2 can circulate, but an inflow of coolant via the first input 22.1 and preferably thus from the cooling device 24 and / or from the heat exchanger X1 can be prevented.
- the valve 22 can z. B. have a switching position in which the first input 22.1 is partially open and the second input 22.2 is completely or partially open, preferably so that coolant (in particular warmed up by the power electronics 21) between the output 22.3, the power electronics 21 and the second Input 22.2 can circulate, but also an inflow of coolant (in particular cooled by means of the further circuit 10 and / or the cooling device 24) via the first input 22.1 and preferably thus from the cooling device 24 and / or the heat exchanger X1 is permitted.
- This can z. B. a circuit mode can be made possible, which includes the power electronics 21, the valve 22 (namely preferably the first at least partially open input
- the pump 23 includes.
- the valve 22 can z. B. have a switching position in which the first input 22.1 is completely open, preferably in such a way that coolant (in particular cooled by means of the further circuit 10 and / or the cooling device 24) circulates between the output 22.3, the power electronics 21 and the first input 22.1 , and in which the second entrance
- 22.2 is completely closed or is only partially and/or intermittently opened. This allows a (“large”) circuit mode to be made possible, which includes the power electronics 21, the valve 22 (namely preferably the fully opened first input 22.1) and the cooling device 24 and/or the heat exchanger (expediently cold and/or cool)X1 and e.g. B. includes the pump 23, preferably with the second input 22.2 essentially closed.
- the valve 22 can z. B. be a thermostat valve and / or a self-adjusting valve for coolant temperature control.
- the valve 22 can z. B. be a non-electronically controlled and / or regulated valve.
- the valve 22 can in particular comprise an expansion material or expansion fluid that reacts to temperature fluctuations, preferably in order to influence a coolant flow.
- the valve 22 can z. B. be set up for fixed temperature control in order to keep the coolant temperature for the power electronics 21 in a predetermined temperature range.
- the pump 23 can z. B. be set up to, expediently for coolant temperature control to avoid condensation formation on or in the power electronics 21, change a coolant heat flow or coolant volume flow, preferably optionally increase and / or reduce.
- the circuit 20, the valve 22 and/or the pump 23 are set up for coolant temperature control in order to avoid condensation formation on or in the power electronics 21, in particular because this results in a temperature on or in the power electronics 21 can expediently be kept essentially above a dew point temperature.
- the valve 22 can in particular also be an electrical valve, in particular an electronically controlled and/or regulated valve.
- the cooling system 100 may include an electronic control and/or regulating device (not shown in the figures).
- the control and/or regulating device is expediently set up to control and/or regulate the valve 22 and/or the pump 23 depending on at least one of the following: a temperature and/or a humidity of the ambient air of the power electronics 21, one Temperature on or in the power electronics 21, a coolant temperature of the circuit 20 (e.g. upstream and/or downstream of the power electronics 21), a coolant temperature of the further circuit 10 and/or a coolant temperature of the additional circuit 30 ( see below).
- suitable sensors can be used.
- the control and/or regulating device can, for. B. be set up to carry out an adjustment with at least one dew point curve and / or to keep the coolant temperature for the power electronics 21 in a predetermined temperature range.
- the control and/or regulating device can, for. B. form part of the power electronics 21 and can therefore preferably be cooled by the circuit 20.
- the control and/or regulating device can also be provided in addition to the power electronics 21 and can be decoupled from the circuit 20.
- the cooling system 100 can also include an optional additional circuit 30 (expediently a refrigeration circuit), which is only shown schematically in FIG.
- the further circuit 10 can expediently be thermally connected to the additional circuit 30 via a particularly further heat exchanger X2, preferably a chiller (e.g. evaporator), in particular such that the additional circuit 30 is used to generate and/or provide cooling power for the further circuit 10 and/or the circuit 20 can be used.
- a particularly further heat exchanger X2 preferably a chiller (e.g. evaporator), in particular such that the additional circuit 30 is used to generate and/or provide cooling power for the further circuit 10 and/or the circuit 20 can be used.
- the additional circuit 30 can z. B. have a compressor and / or a capacitor.
- the additional circuit 30 can also expediently have an expansion element (e.g. expansion valve) upstream of the further heat exchanger X2.
- the further circuit 10 is expediently integrated between the circuit 20 and the additional circuit 30.
- the further circuit 10 can preferably be a battery cooling circuit with a cooling device (e.g. cooler with fan), but preferably without an evaporator, without a condenser, without a compressor and/or without an expansion element.
- the additional circuit 20 can preferably be a refrigeration circuit with in particular a condenser, a compressor and an expansion element, in particular for generating cooling capacity for the further circuit 10, whereby the cooling capacity can also be expediently used indirectly for the circuit 20 by means of the heat exchanger X1.
- the cooling system 100 is preferably part of a motor vehicle, e.g. B. an autonomous or semi-autonomous bus or truck.
- the cooling system 100 includes a first circuit 10 (e.g. refrigeration circuit) for carrying a (e.g. liquid or gaseous) cooling medium, preferably a circuit of an air conditioning system for cooling an interior of the motor vehicle.
- the first circuit 10 thus expediently forms an air conditioning circuit, in particular an air conditioning refrigeration circuit.
- the first circuit 10 can z. B. have a compressor and a capacitor, which are summarized schematically in Figure 1 under the reference number 40.
- the cooling medium can expediently change its physical state during operation.
- the first circuit 10 also includes an evaporator 50.
- the first circuit 10 can be, for. B. is a conventional refrigeration circuit of a motor vehicle air conditioning system.
- a motor vehicle air conditioning system all components required to generate cooling capacity (in particular compressor (e.g. compressor) and/or capacitor) of an active refrigeration circuit are advantageously already present and therefore advantageously do not have to be installed again or possibly even operated electrically.
- the cooling system 100 includes power electronics 21, preferably at least one control device and/or at least one computer (e.g. at least one chip, processor, etc.), preferably for data processing for autonomous or semi-autonomous driving of the motor vehicle.
- power electronics 21 preferably at least one control device and/or at least one computer (e.g. at least one chip, processor, etc.), preferably for data processing for autonomous or semi-autonomous driving of the motor vehicle.
- the cooling system 100 is characterized in particular by the fact that it includes a second circuit 20 (expediently cooling circuit) for cooling the power electronics 21 and/or for coolant temperature control to avoid condensation formation on or in the power electronics 21.
- the second circuit 20 expediently serves to carry a (e.g. liquid or gaseous) coolant.
- the first circuit 10 and the second circuit 20 are expediently thermally connected to one another via a heat exchanger 30 (e.g. a plate heat exchanger), so that the first circuit 10 can be used to generate cooling capacity (expediently cold) for the second circuit 20.
- the heat exchanger 30 is preceded in particular by an expansion element 11 (e.g. an expansion valve), which is also part of the first circuit 10. It is also possible for the heat exchanger 30 to be designed as a chiller (e.g. evaporator).
- the evaporator 50 can also be preceded by an expansion element 12 (e.g. an expansion valve), which is expediently also part of the first circuit 10.
- the first circuit 10 can therefore z. B. have two expansion elements 11 and 12.
- the second circuit 20 can z. B. include an expansion tank 60 for the coolant of the second circuit 20.
- a special feature is that the second circuit 20 can include a valve 22 for coolant temperature control to avoid condensation formation on or in the power electronics 21.
- the valve 22 is preferably a 3-way valve. It can e.g. B. have at least three connections 22.1, 22.2, 22.3 and/or have at least two switching positions and z. B. be designed as a 3-way valve, in particular a 3/2-way valve. In particular, the valve 22 can be set up to bring together coolant at different temperatures.
- the second circuit 20 may also have an optional cooling device 24, e.g. B. a cooler with a fan.
- an optional cooling device 24 e.g. B. a cooler with a fan.
- the second circuit 20 comprises a first line section A and a second line section B.
- the first line section A expediently extends upstream of the power electronics 21 between the heat exchanger 30 and the power electronics 21.
- the second line section B expediently extends downstream of the power electronics 21 between the power electronics 21 and the heat exchanger 30.
- the power electronics 21 and the heat exchanger 30 can therefore z. B. be positioned between the first line section A and the second line section B, so that the first line section A corresponds to a line section upstream of the power electronics 21 and downstream of the heat exchanger 30 and / or the second line section B corresponds to a line section downstream of the power electronics 21 and upstream of the heat exchanger 30 corresponds.
- a third line section C of the second circuit 20 is set up to form a bypass line and z. B. to connect the second line section B to the valve 22 in order to lead coolant to the valve 22 and/or into the first line section A, bypassing the cooling device 24 and/or the heat exchanger 30, and preferably back to the power electronics 21.
- the valve 22 is expediently integrated into the first line section A and the third line section C.
- the third line section C branches off from the second line section B at a branch point 25.
- the branch point 25 is downstream of the power electronics 21 and z. B. positioned upstream of the cooling device 24 and/or the heat exchanger 30.
- the cooling device 24 is preferably integrated into the second line section B and / or downstream of the branch point 25 and z. B. positioned upstream of the heat exchanger 30.
- the second circuit 20 also includes a pump 23, which can expediently be integrated into the first line section A.
- the pump 23 can z. B. be integrated into the second circuit 20 upstream of the power electronics 21 and downstream of the valve 22 and/or downstream of the heat exchanger 30.
- the coolant of the second circuit 20 can in particular absorb heat from the power electronics 21 and use the heat for coolant temperature control to avoid condensation formation on or in the power electronics 21, preferably in combination with coolant cooled by means of the heat exchanger 30 and/or the cooling device 24.
- the valve 22 includes a first input 22.1, which is connected to an output of the heat exchanger 30 by means of a first section A1 of the first line section A.
- the valve 22 includes a second inlet 22.2, which is connected to the second line section B by means of the third line section C.
- the valve 22 includes an output 22.3, depending on valve switching positions for coolant temperature control (expediently warmed up by means of the power electronics 21 and/or cooled by means of the first circuit 10 and/or the cooling device 24) via a second section A2 of the first line section A forward to the power electronics 21.
- the first input 22.1 and/or the second input 22.2 and optionally the output 22.3 can z. B. have an open position in which it is completely open, have a closed position in which it is completely closed, and / or have at least an intermediate position in which it is partially opened.
- the valve 22 can have different switching positions in order to selectively let through coolant heated by the power electronics 21 (expediently by means of the second input 22.2) and coolant cooled by the first circuit 10 and/or the cooling device 24 (expediently by means of the first input 22.1) for coolant temperature control and/or or to block.
- the valve 22 can z. B. have a switching position in which the first input 22.1 is completely closed and the second input 22.2 is completely or partially open, preferably so that coolant (in particular warmed up by the power electronics 21) between the output 22.3, the power electronics 21 and the second Input 22.2 can circulate, but an inflow of coolant via the first input 22.1 and preferably thus from the cooling device 24 and / or from the heat exchanger 30 can be prevented.
- the valve 22 can z. B. have a switching position in which the first input 22.1 is partially open and the second input 22.2 is completely or partially open, preferably so that coolant (in particular warmed up by the power electronics 21) between the output 22.3, the power electronics 21 and the second Entrance 22.2 can circulate, but also an inflow of coolant (in particular cooled by means of the first circuit 10 and / or the cooling device 24) via the first entrance 22.1 and preferably thus from the cooling device 24 and / or the heat exchanger 30 is permitted.
- This can z. B. a circuit mode can be made possible, which includes the power electronics 21, the valve 22 (namely preferably the first at least partially open input
- the pump 23 includes.
- the valve 22 can z. B. have a switching position in which the first input 22.1 is completely open, preferably in such a way that coolant (in particular cooled by means of the first circuit 10 and / or the cooling device 24) circulates between the output 22.3, the power electronics 21 and the first input 22.1 , and in which the second entrance
- the valve 22 can z. B. be a thermostat valve and / or a self-adjusting valve for coolant temperature control.
- the valve 22 can z. B. be a non-electronically controlled and / or regulated valve.
- the valve 22 can in particular comprise an expansion material or expansion fluid that reacts to temperature fluctuations, preferably in order to influence a coolant flow.
- the valve 22 can z. B. be set up for fixed temperature control in order to keep the coolant temperature for the power electronics 21 in a predetermined temperature range.
- the pump 23 can be set up to change, preferably optionally increase and/or reduce, a coolant heat flow or coolant volume flow for coolant temperature control in order to avoid condensation formation on or in the power electronics 21.
- cooling capacity for the second circuit 20, in particular by including a motor vehicle air conditioning system and/or its refrigeration circuit components.
- the second circuit 20, the valve 22 and/or the pump 23 it is particularly possible for the second circuit 20, the valve 22 and/or the pump 23 to be set up for coolant temperature control in order to avoid condensation formation on or in the power electronics 21, in particular because this results in a temperature at or in the Power electronics 21 can expediently be kept essentially above a dew point temperature.
- the valve 22 can in particular also be an electrical valve, in particular an electronically controlled and/or regulated valve.
- the cooling system 100 may include an electronic control and/or regulating device (not shown in the figures).
- the control and/or regulating device is expediently set up to control and/or regulate the valve 22 and/or the pump 23 depending on at least one of the following: a temperature and/or a humidity of the ambient air of the power electronics 21, one Temperature on or in the power electronics 21, a coolant temperature temperature of the second circuit 20 (e.g. upstream and/or downstream of the power electronics 21), and/or a cooling medium temperature of the first circuit 10.
- a temperature and/or a humidity of the ambient air of the power electronics 21 one Temperature on or in the power electronics 21, a coolant temperature temperature of the second circuit 20 (e.g. upstream and/or downstream of the power electronics 21), and/or a cooling medium temperature of the first circuit 10.
- suitable sensors can be used for the respective temperature detection.
- the control and/or regulating device can, for. B. be set up to carry out an adjustment with at least one dew point curve and / or to keep the coolant temperature for the power electronics 21 in a predetermined temperature range.
- the control and/or regulating device can, for. B. form part of the power electronics 21 and can therefore preferably be cooled by the second circuit 20.
- the control and/or regulating device can also be provided in addition to the power electronics 21 and can be decoupled from the second circuit 20.
- the first circuit 10 is expediently a closed refrigeration circuit, the refrigerant of which, for. B. can be liquid and can change its physical state during operation.
- the second circuit 20 is expediently a closed high-temperature circuit, the coolant of which is, for example, liquid.
- the cooling system 100 shown in Figure 2 is preferably part of a motor vehicle, e.g. B. an autonomous or semi-autonomous bus or truck.
- the cooling system 100 comprises a first circuit 10 (e.g. refrigeration circuit) for carrying a (e.g. liquid or gaseous) cooling medium, preferably a circuit of an air conditioning system for cooling an interior of the motor vehicle.
- the first circuit 10 thus expediently forms an air conditioning circuit, in particular an air conditioning system refrigeration circuit.
- the first circuit 10 can z. B. have a compressor and a capacitor, which are summarized schematically in Figure 2 under the reference number 40.
- the cooling medium can expediently change its physical state during operation.
- the first circuit 10 also includes an evaporator 50.
- the first circuit 10 can be, for. B. is a conventional refrigeration circuit of a motor vehicle air conditioning system.
- a motor vehicle air conditioning system By means of a motor vehicle air conditioning system, all components required to generate cooling capacity (in particular Compressor (e.g. compressor) and / or capacitor) of an active refrigeration circuit are present and therefore advantageously do not have to be installed again or possibly even operated electrically.
- the cooling system 100 includes power electronics 21, preferably at least one control device and/or at least one computer (e.g. at least one chip, processor, etc.), preferably for data processing for autonomous or semi-autonomous driving of the motor vehicle.
- power electronics 21 preferably at least one control device and/or at least one computer (e.g. at least one chip, processor, etc.), preferably for data processing for autonomous or semi-autonomous driving of the motor vehicle.
- the cooling system 100 is characterized in particular by the fact that it includes a second circuit 20 (expediently cooling circuit) for cooling the power electronics 21 and/or for coolant temperature control to avoid condensation formation on or in the power electronics 21.
- the second circuit 20 expediently serves to carry a (e.g. liquid or gaseous) coolant.
- the first circuit 10 and the second circuit 20 are expediently thermally connected to one another via a heat exchanger 30 (e.g. a plate heat exchanger), so that the first circuit 10 can be used to generate cooling power (expediently cold) for the second circuit 20.
- the heat exchanger 30 is preceded in particular by an expansion element 11 (e.g. an expansion valve), which is also part of the first circuit 10. It is also possible for the heat exchanger 30 to be designed as a chiller (e.g. evaporator).
- the evaporator 50 can also be preceded by an expansion element 12 (e.g. an expansion valve), which is expediently also part of the first circuit 10.
- the first circuit 10 can therefore z. B. have two expansion elements 11 and 12.
- the second circuit 20 can z. B. include an expansion tank 60 for the coolant of the second circuit 20.
- the second circuit 20 can include a valve 22 for coolant temperature control to avoid condensation formation on or in the power electronics 21.
- the valve 22 is preferably a 3-way valve. It can e.g. B. have at least three connections 22.1, 22.2, 22.3 and/or have at least two switching positions and z. B. be designed as a 3-way valve, in particular a 3/2-way valve. In particular, the valve 22 can be set up to bring together coolant at different temperatures.
- the second circuit 20 may also have an optional cooling device 24, e.g. B. a cooler with a fan.
- the second circuit 20 comprises a first line section A and a second line section B.
- the first line section A expediently extends upstream of the power electronics 21 between the heat exchanger 30 and the power electronics 21.
- the second line section B expediently extends downstream of the power electronics 21 between the power electronics 21 and the heat exchanger 30.
- the power electronics 21 and the heat exchanger 30 can therefore z. B. be positioned between the first line section A and the second line section B, so that the first line section A corresponds to a line section upstream of the power electronics 21 and downstream of the heat exchanger 30 and / or the second line section B corresponds to a line section downstream of the power electronics 21 and upstream of the heat exchanger 30 corresponds.
- a third line section C of the second circuit 20 is set up to form a bypass line and z. B. to connect the second line section B with the valve 22 in order to lead coolant to the valve 22 and/or into the first line section A, bypassing the cooling device 24 and/or the heat exchanger 30, and preferably back to the power electronics 21.
- the valve 22 is expediently integrated into the first line section A and the third line section C.
- the third line section C branches off from the second line section B at a branch point 25.
- the branch point 25 is downstream of the power electronics 21 and z. B. positioned upstream of the cooling device 24 and/or the heat exchanger 30.
- the cooling device 24 is preferably integrated into the second line section B and / or downstream of the branch point 25 and z. B. positioned upstream of the heat exchanger 30.
- the second circuit 20 also includes a pump 23, which can expediently be integrated into the first line section A.
- the pump 23 can z. B. be integrated into the second circuit 20 upstream of the power electronics 21 and downstream of the valve 22 and/or downstream of the heat exchanger 30.
- the coolant of the second circuit 20 can in particular absorb heat from the power electronics 21 and use the heat for coolant temperature control to avoid condensation formation on or in the power electronics 21, preferably in combination with coolant cooled by means of the heat exchanger 30 and/or the cooling device 24.
- the valve 22 includes a first input 22.1, which is connected to an output of the heat exchanger 30 by means of a first section A1 of the first line section A.
- the valve 22 includes a second inlet 22.2, which is connected to the second line section B by means of the third line section C.
- the valve 22 includes an output 22.3, depending on valve switching positions for coolant temperature control (expediently warmed up by means of the power electronics 21 and/or cooled by means of the first circuit 10 and/or the cooling device 24) via a second section A2 of the first line section A forward to the power electronics 21.
- the first input 22.1 and/or the second input 22.2 and optionally the output 22.3 can z. B. have an open position in which it is completely open, have a closed position in which it is completely closed, and / or have at least an intermediate position in which it is partially opened.
- the valve 22 can have different switching positions in order to selectively let through coolant heated by the power electronics 21 (expediently by means of the second input 22.2) and coolant cooled by the first circuit 10 and/or the cooling device 24 (expediently by means of the first input 22.1) for coolant temperature control and/or or to block.
- the valve 22 can z. B. have a switching position in which the first input 22.1 is completely closed and the second input 22.2 is completely or partially open, preferably so that coolant (in particular warmed up by the power electronics 21) between the output 22.3, the power electronics 21 and the second Input 22.2 can circulate, but an inflow of coolant via the first input 22.1 and preferably thus from the cooling device 24 and / or from the heat exchanger 30 can be prevented.
- the valve 22 can z. B. have a switching position in which the first input 22.1 is partially open and the second input 22.2 is completely or partially open, preferably so that coolant (in particular warmed up by the power electronics 21) between the output 22.3, the power electronics 21 and the second Entrance 22.2 can circulate, but also an inflow of coolant (in particular cooled by means of the first circuit 10 and / or the cooling device 24) via the first entrance 22.1 and preferably thus from the cooling device 24 and / or the heat exchanger 30 is permitted.
- This can z. B. a circuit mode can be made possible, which includes the power electronics 21, the valve 22 (namely preferably the first at least partially open input
- the pump 23 includes.
- the valve 22 can z. B. have a switching position in which the first input 22.1 is completely open, preferably in such a way that coolant (in particular cooled by means of the first circuit 10 and / or the cooling device 24) circulates between the output 22.3, the power electronics 21 and the first input 22.1 , and in which the second entrance
- 22.2 is completely closed or is only partially and/or intermittently opened. This allows a (“large”) circuit mode to be enabled, which includes the power electronics 21, the valve 22 (namely preferably the fully opened first input 22.1) and the cooling device 24 and/or the heat exchanger 30 and e.g. B. includes the pump 23, preferably with the second input 22.2 essentially closed.
- the valve 22 can z. B. be a thermostat valve and / or a self-adjusting valve for coolant temperature control.
- the valve 22 can z. B. be a non-electronically controlled and / or regulated valve.
- the valve 22 can in particular comprise an expansion material or expansion fluid that reacts to temperature fluctuations, preferably in order to influence a coolant flow.
- the valve 22 can z. B. be set up for fixed temperature control in order to keep the coolant temperature for the power electronics 21 in a predetermined temperature range.
- the pump 23 can be set up to change, preferably optionally increase and/or reduce, a coolant heat flow or coolant volume flow for coolant temperature control in order to avoid condensation formation on or in the power electronics 21.
- cooling capacity for the second circuit 20, in particular by including a motor vehicle air conditioning system and/or its refrigeration circuit components.
- the second circuit 20, the valve 22 and/or the pump 23 it is particularly possible for the second circuit 20, the valve 22 and/or the pump 23 to be set up for coolant temperature control in order to avoid condensation formation on or in the power electronics 21, in particular because this results in a temperature at or in the Power electronics 21 can expediently be kept essentially above a dew point temperature.
- the valve 22 can in particular also be an electrical valve, in particular an electronically controlled and/or regulated valve.
- the cooling system 100 may include an electronic control and/or regulating device (not shown in the figures).
- the control and/or regulating device is expediently set up to control and/or regulate the valve 22 and/or the pump 23 depending on at least one of the following: a temperature and/or a humidity of the ambient air of the power electronics 21, one Temperature on or in the power electronics 21, a coolant temperature of the second circuit 20 (e.g. upstream and/or downstream of the power electronics 21), and/or a coolant temperature of the first circuit 10.
- a temperature and/or a humidity of the ambient air of the power electronics 21 one Temperature on or in the power electronics 21, a coolant temperature of the second circuit 20 (e.g. upstream and/or downstream of the power electronics 21), and/or a coolant temperature of the first circuit 10.
- suitable sensors can be used for the respective temperature detection.
- the control and/or regulating device can, for. B. be set up to carry out an adjustment with at least one dew point curve and / or to keep the coolant temperature for the power electronics 21 in a predetermined temperature range.
- the control and/or regulating device can, for. B. form part of the power electronics 21 and can therefore preferably be cooled by the second circuit 20.
- the control and/or regulating device can also be provided in addition to the power electronics 21 and can be decoupled from the second circuit 20.
- the first circuit 10 is expediently a closed refrigeration circuit, the refrigerant of which, for. B. can be liquid and can change its physical state during operation.
- the second circuit 20 is expediently a closed high-temperature circuit, the coolant of which is, for example, liquid.
- the coolant of which is, for example, liquid.
- the invention is not limited to the preferred embodiments described above. Rather, a large number of variants and modifications are possible, which also make use of the inventive idea and therefore fall within the scope of protection.
- the invention also claims protection for the subject matter and the features of the subclaims, regardless of the features and claims referred to.
- first circuit preferably refrigeration circuit of an air conditioning system, in particular a motor vehicle air conditioning system
- Cooling device preferably cooler with fan
- a first line section preferably upstream of the power electronics and downstream of the heat exchanger and/or the cooling device
- B second line section preferably downstream of the power electronics and upstream of the heat exchanger and / or the cooling device
- C third line section preferably bypass line to bypass the cooling device and/or the heat exchanger X1 heat exchanger
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022120391.3A DE102022120391A1 (de) | 2022-08-12 | 2022-08-12 | Kühlsystem zum Kühlen einer Leistungselektronik und/oder zur Kühlmitteltemperierung |
| DE102022120411.1A DE102022120411A1 (de) | 2022-08-12 | 2022-08-12 | Kühlsystem zum Kühlen einer Leistungselektronik und/oder zur Kühlmitteltemperierung |
| PCT/EP2023/071498 WO2024033203A1 (de) | 2022-08-12 | 2023-08-03 | Kühlsystem zum kühlen einer leistungselektronik und/oder zur kühlmitteltemperierung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4568844A1 true EP4568844A1 (de) | 2025-06-18 |
Family
ID=87561065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23751635.6A Pending EP4568844A1 (de) | 2022-08-12 | 2023-08-03 | Kühlsystem zum kühlen einer leistungselektronik und/oder zur kühlmitteltemperierung |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4568844A1 (de) |
| WO (1) | WO2024033203A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024207331A1 (de) * | 2024-08-02 | 2026-02-05 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Temperieren eines Steuergeräts |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017204526A1 (de) * | 2017-03-17 | 2018-09-20 | Robert Bosch Gmbh | Verfahren zum Kühlen eines Umrichters, insbesondere eines Frequenzumrichters in einem Wärmepumpenkreislauf |
| US10967702B2 (en) * | 2017-09-07 | 2021-04-06 | Tesla, Inc. | Optimal source electric vehicle heat pump with extreme temperature heating capability and efficient thermal preconditioning |
| EP3715156B1 (de) * | 2019-03-25 | 2021-08-04 | Konvekta Aktiengesellschaft | Frequenzumrichterkühlung |
| KR102829614B1 (ko) * | 2020-06-30 | 2025-07-03 | 현대자동차 주식회사 | 차량용 열 관리 시스템 |
| KR102923045B1 (ko) * | 2020-09-24 | 2026-02-04 | 현대자동차 주식회사 | 차량용 히트펌프 시스템 |
| KR20220040792A (ko) * | 2020-09-24 | 2022-03-31 | 현대자동차주식회사 | 차량용 히트펌프 시스템 |
-
2023
- 2023-08-03 EP EP23751635.6A patent/EP4568844A1/de active Pending
- 2023-08-03 WO PCT/EP2023/071498 patent/WO2024033203A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024033203A1 (de) | 2024-02-15 |
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