EP4529508A1 - Kältemittelsystem, verteilmodul und thermomanagementsystem für ein elektrofahrzeug - Google Patents
Kältemittelsystem, verteilmodul und thermomanagementsystem für ein elektrofahrzeugInfo
- Publication number
- EP4529508A1 EP4529508A1 EP23714530.5A EP23714530A EP4529508A1 EP 4529508 A1 EP4529508 A1 EP 4529508A1 EP 23714530 A EP23714530 A EP 23714530A EP 4529508 A1 EP4529508 A1 EP 4529508A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- refrigerant
- module
- distribution module
- capacitor
- compressor
- 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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/323—Cooling devices using compression characterised by comprising auxiliary or multiple systems, e.g. plurality of evaporators, or by involving auxiliary cooling devices
-
- 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
-
- 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
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00571—Details of ducts or cables of liquid ducts, e.g. for coolant liquids or refrigerants
-
- 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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
Definitions
- Refrigerant system, distribution module and thermal management system for an electric vehicle Refrigerant system, distribution module and thermal management system for an electric vehicle
- the present invention relates to a refrigerant system of the type mentioned in the preamble of claim 1, a distribution module for a refrigerant system and a thermal management system for an electric vehicle of the type mentioned in the preamble of claim 8.
- the known coolant systems for circulating a liquid coolant include a plurality of components through which the coolant can flow, wherein the components can be connected to one another, at least in at least a subset, in a coolant-conducting manner by means of valves and by means of coolant lines.
- the same applies to the known refrigerant systems for circulating a refrigerant comprising the following components: a compressor, at least one condenser, at least one expansion device and an evaporator, the aforementioned components interacting in an operating state of the refrigerant system in the manner of a heat pump.
- the present invention is based on the object of improving a refrigerant system, a distribution module and a thermal management system for an electric vehicle with a coolant system and a refrigerant system.
- a refrigerant system for an electric vehicle with the features of claim 1 which is characterized in that the refrigerant system has a distribution module for the flow-conducting connection of the aforementioned components and for distributing a refrigerant circulating in the refrigerant system, the distribution module being between a Compressor output of the compressor and a capacitor input of the at least one capacitor fluidly arranged first module part and a second module part fluidly arranged between a capacitor output of the at least one capacitor and a compressor input of the compressor, and wherein the first module part is separated from the second module part by means of at least one insulating part of the distribution module Essentially thermally insulated. Furthermore, this problem is solved by a distribution module with the features of claim 3 and a thermal management system for an electric vehicle with the features of claim 8.
- the subclaims relate to advantageous developments of the invention.
- a significant advantage of the invention is, in particular, that a refrigerant system, a distribution module and a thermal management system for an electric vehicle are improved with a coolant system and a refrigerant system. Due to the invention, functionally complex refrigerant systems and thermal management systems for electric vehicles can be implemented in a simpler way in terms of design and production technology. Accordingly, the structure of the refrigerant system according to the invention and thus of the thermal management system according to the invention is significantly simplified, so that these systems can be produced cost-effectively and in a space-saving manner. At the same time, the efficiency of such refrigerant systems and thermal management systems is increased by means of the invention.
- the thermal management system according to the invention for an electric vehicle and the refrigerant system according to the invention for an electric vehicle can each be freely selected within wide suitable limits depending on the type, functionality, material and dimensioning.
- the invention is also not limited to an application in purely electric vehicles.
- the invention can also be used advantageously in so-called hybrid vehicles.
- a particularly advantageous development of the refrigerant system according to the invention provides that the first module part, the at least one insulating part and the second module part can be connected to form a structural unit forming the distribution module, preferably that this connection takes place by means of one of the aforementioned components of the refrigerant system, particularly preferably that this component is designed as one of the at least one capacitor.
- the aforementioned component designed for example as one of the capacitors, simultaneously serves as a connecting element for mechanically connecting the first module part, the at least one insulating part and the second module part for producing the the aforementioned structural unit is used.
- the distribution module according to the invention for the refrigerant system according to the invention can also be freely selected within wide limits in terms of type, functionality, material, dimensioning and arrangement.
- an advantageous development of the distribution module according to the invention provides that at least one valve of the distribution module, preferably a valve of the distribution module designed as a single multi-way valve, is arranged in the first module part.
- the aforementioned valve in particular the valve designed as a single multi-way valve, is essentially thermally insulated from the second module part.
- a further advantageous development of the distribution module according to the invention provides that an internal heat exchanger, also referred to as IHX, is arranged in the second module part, the internal heat exchanger being designed and arranged in such a way that, by means of the internal heat exchanger, heat is exchanged between a fluid in front of the evaporator arranged refrigerant line and a refrigerant line arranged fluidically after the evaporator.
- IHX internal heat exchanger
- At least one refrigerant line of the low-temperature range designed as a return line, is arranged downstream of the evaporator only in spatial proximity to at least one refrigerant line of the high-temperature range downstream of the at least one capacitor, so that an advantageous heat transfer between these two areas of the refrigerant system according to the invention in terms of design and production technology can be produced in a very simple manner.
- the distribution module according to the invention provides that at least one of the at least one expansion device, preferably an expansion device designed as an expansion valve, is arranged in the second module part.
- the level of concentration is of components of the refrigerant system according to the invention in the distribution module according to the invention is further increased.
- an arrangement of all relaxation devices in the second module part would be particularly advantageous.
- the at least one insulating part of the distribution module according to the invention can be freely selected within wide suitable limits according to type, functionality, material, dimensioning and arrangement.
- An advantageous development of the distribution module according to the invention provides that at least one of the at least one insulating part has an opening for the passage of a refrigerant line of the distribution module, preferably that this refrigerant line can be connected to the multi-way valve in a flow-conducting manner, particularly preferably that this refrigerant line is flow-conducting to one with the compressor inlet
- the refrigerant line of the distribution module is connected in a flow-conducting manner to the compressor.
- a required flow-conducting connection of the distribution module according to the invention is made possible by the thermal insulation.
- the preferred and in particular the particularly preferred embodiment of this development provide particularly advantageous flow-conducting connections between the first module part on one side of the insulating part and the second module part on the other side of the insulating part.
- This opening in the thermal insulation can be thermally closed using means and measures suitable for the respective application, with the exception of the aforementioned flow-conducting connection.
- the expert is aware of suitable means and measures for this.
- thermal management system according to the invention can be freely selected within wide, suitable limits.
- one of the at least one capacitor is designed as a liquid-cooled one Condenser is formed, wherein this capacitor can be connected to the coolant system in a flow-conducting manner.
- this capacitor can be connected to the coolant system in a flow-conducting manner.
- the condenser can be arranged to conduct coolant in a partial drive train circuit of the coolant system.
- the condenser a component present in a common refrigerant system for an electric vehicle, can therefore be used both for the operation of the refrigerant system and for heat transfer between the coolant system on the one hand and the refrigerant system on the other side.
- a further advantageous development of the thermal management system according to the invention provides that the distribution module can be connected in a flow-conducting manner to a chiller of the thermal management system, the chiller enabling heat exchange between the refrigerant system on the one hand and the coolant system on the other side.
- a heat transfer connection can be established, if necessary, between the coolant system on the one hand and the coolant system on the other side.
- FIG. 1 shows an exemplary embodiment of the refrigerant system according to the invention with the distribution module according to the invention in a process circuit diagram
- Fig. 2 shows the distribution module of the exemplary embodiment according to Fig. in one
- Fig. 3 shows the distribution module of the exemplary embodiment according to Fig. in one
- FIG. 4 shows the distribution module of the exemplary embodiment according to FIG. in one
- FIG. 1 to 4 show an exemplary embodiment of the refrigerant system according to the invention of a thermal management system according to the invention, not shown in detail, purely as an example.
- the thermal management system is designed as a thermal management system for a purely electric vehicle and includes, on the one hand, a coolant system (not shown) and, on the other hand, a refrigerant system 2.
- the coolant system for circulating a liquid coolant here comprises a plurality of components through which the coolant can flow, the components being provided by means of at least one valve, for example a multi-way valve, and can be connected to one another in a coolant-conducting manner, at least in at least a subset, by means of coolant lines.
- the refrigerant system 2 is designed for air conditioning of a passenger compartment (also not shown) of the electric vehicle and for temperature control of a coolant (not shown) flowing in the coolant system.
- the refrigerant system 2 comprises the following components: a compressor 4, a first condenser 6 and a second condenser 8, a first expansion device 10 and a second expansion device 12 and an evaporator 14, the The aforementioned components interact in an operating state of the refrigerant system 2 in the manner of a heat pump.
- the second capacitor 8 is designed here as a liquid-cooled capacitor, this capacitor 8 being able to be connected to the coolant system in a flow-conducting manner in a manner known to those skilled in the art.
- the second capacitor 8 is therefore indirectly by means of of the liquid coolant can be connected to a free environment in a heat-transferring manner.
- the first condenser 6 and the evaporator 14 are designed here as a so-called interior condenser and as a so-called interior evaporator and are therefore in direct heat exchange with the passenger compartment.
- the evaporator 14 and the first condenser 6 allow both direct cooling and heating of the interior of the electric vehicle, namely the passenger compartment.
- the heat pump i.e. the refrigerant system 2
- the refrigerant system 2 in the present exemplary embodiment includes a chiller 16 and an accumulator 18.
- the chiller 16 also enables heat exchange between the refrigerant system 2 on the one hand and the coolant system on the other side.
- the chiller 16, analogous to the second capacitor 8, can be connected in a flow-conducting manner to the coolant system in a manner known to those skilled in the art.
- the accumulator 18 serves here as a storage container for the refrigerant, not shown, of the refrigerant system 2.
- other embodiments of storage containers for the refrigerant are also conceivable.
- the refrigerant system 2 has a distribution module 20 for the flow-conducting connection of the aforementioned components and for distributing a refrigerant circulating in the refrigerant system 2, the distribution module 20 being a first module part arranged fluidically between a compressor outlet of the compressor 4 and a capacitor inlet of the respective capacitor 6, 8 22 and a second module part 24 arranged fluidically between a capacitor output of the respective capacitor 6, 8 and a compressor input of the compressor 4, and wherein the first module part 22 is essentially thermally insulated from the second module part 24 by means of an insulating part 26 of the distribution module 20.
- the refrigerant is not shown in FIGS. 1 to 4.
- the first module part 22, the insulating part 26 and the second module part 24 can be connected to form a structural unit forming the distribution module 20, this connection being carried out by means of one of the aforementioned components of the refrigerant system 2, namely the second capacitor 8. See FIGS. 2 to 4 in a synopsis.
- a valve 28 of the distribution module 20 designed as a multi-way valve is arranged in the first module part 22. Furthermore, an internal heat exchanger 30 is arranged in the second module part 24, the internal heat exchanger 30 being designed and arranged in such a way that, by means of the internal heat exchanger 30, heat is exchanged between a refrigerant line 32 arranged fluidically upstream of the evaporator 14 and a refrigerant line 32 arranged fluidly downstream of the evaporator 14 Refrigerant line 34 is possible.
- the first expansion device 10 designed as a first expansion valve and the second expansion device 12 designed as a second expansion valve are each arranged in the second module part 24.
- the insulating part 26 has an opening 36 for the passage of a refrigerant line 38 of the distribution module 20, this refrigerant line 38 being connectable to the multi-way valve 28 in a flow-conducting manner and this refrigerant line 38 being flow-conducting to the accumulator 18 and thus indirectly to the Compressor input of the compressor 4 is connected in a flow-conducting manner to the refrigerant line 34 of the distribution module 20.
- thermal management system according to the invention with the refrigerant system according to the invention and the distribution module according to the invention according to the present exemplary embodiment will be explained in more detail below with reference to FIGS. 1 to 4.
- the assembly of the refrigerant system 2 with the distribution module 20 is significantly simplified according to the present exemplary embodiment compared to the prior art.
- the first module part 22, the insulating part 26 and the second module part 24 of Distribution module 20 are connected to one another here by the second capacitor 8 and kept in contact. See FIGS. 2 to 4 in a synopsis.
- the insulating part 26 can, for example, be pre-assembled either on the first module part 22 or on the second module part 24 in order to further simplify production.
- the first module part 22 and the second module part 24 are then assembled and connected by means of the second capacitor 8 to the distribution module 20 designed as a single structural unit.
- connection for example through screw connections or the like, of the second capacitor 8 with the first module part 22 and the second module part 24 generates the necessary contact pressure, so that sealing points at interfaces between the first module part 22, the second module part 24 and the insulating part 26 are effectively sealed become.
- the insulating part 26 is fixed between the first module part 22 and the second module part 24, so that there are direct connection points, namely the high-temperature region of the first module part 22 and the low-temperature region of the second module part 24, between the insulating part 26 on the one hand and the first module part 22 and the second Module part 24, on the other hand, can be omitted. Undesirable heat transfer between the first module part 22 and the second module part 24 is thus further reduced.
- the components of the coolant system can represent heat sources or heat sinks.
- the refrigerant system 2 has the aforementioned high pressure range/high temperature range (HT range for short) and the aforementioned low pressure range/low temperature range (NT range for short).
- the HT area includes the area between the compressor outlet of the compressor 4 to the multi-way valve 28, then either to the first capacitor 6 and / or to the second capacitor 8 and then to the expansion valves 10 and 12.
- the NT area begins after Expansion valves 10, 12 and includes the area from the expansion valves 10, 12 to the chiller 16 and to the evaporator 14, then to the accumulator 18 and finally to the compressor input of the compressor 4.
- the components of the refrigerant system 2 are at least partially integrated into a single module. Furthermore, an advantageous thermal separation/connection of the HT and NT areas, as explained above, is made possible by means of the distribution module 20.
- external refrigerant lines i.e. refrigerant lines beyond the distribution module 20 are shown by dashed lines and refrigerant lines in the distribution module 20 are shown by solid lines.
- the first module part 22 includes the HT area upstream of the capacitors 6, 8, which contains the flow-conducting connections from the compressor 4 to the multi-way valve 28 and to the capacitors 6, 8.
- the second module part 24 includes the HT area downstream of the capacitors 6, 8 and the NT area.
- the return line of the NT area downstream of the evaporator 14, namely the refrigerant line 34, is arranged in spatial proximity to the refrigerant line 32 of the HT area downstream of the capacitors 6, 8 in such a way that in the internal heat exchanger 30 formed in this way an advantageous Heat transfer can be produced between these two areas.
- the internal heat exchanger 30, which is only implemented in the aforementioned manner, is marked in FIGS. 1 to 4 by a dot-dashed line. Of course, other embodiments of the internal heat exchanger, if available, are also conceivable.
- the efficiency of the entire system i.e. the thermal management system with the coolant system and the refrigerant system 2
- the invention is not limited to the present exemplary embodiment. See, for example, the relevant statements in the introduction to the description and in the description of the specific exemplary embodiment on alternative or optional technical features of the invention.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022112960 | 2022-05-23 | ||
| PCT/EP2023/057676 WO2023227274A1 (de) | 2022-05-23 | 2023-03-24 | Kältemittelsystem, verteilmodul und thermomanagementsystem für ein elektrofahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4529508A1 true EP4529508A1 (de) | 2025-04-02 |
Family
ID=85795498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23714530.5A Pending EP4529508A1 (de) | 2022-05-23 | 2023-03-24 | Kältemittelsystem, verteilmodul und thermomanagementsystem für ein elektrofahrzeug |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250083495A1 (de) |
| EP (1) | EP4529508A1 (de) |
| CN (1) | CN119255924A (de) |
| WO (1) | WO2023227274A1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112477549B (zh) * | 2020-11-23 | 2022-03-18 | 艾泰斯热系统研发(上海)有限公司 | 一种多负载热泵系统的冷却液冷热源切换装置 |
| CN113276630B (zh) * | 2021-06-24 | 2022-09-02 | 浙江吉利控股集团有限公司 | 一种热管理集成模块和电动车辆 |
| CN114161904B (zh) * | 2021-12-03 | 2025-01-14 | 浙江吉利控股集团有限公司 | 一种热泵集成模块及汽车空调系统 |
-
2023
- 2023-03-24 EP EP23714530.5A patent/EP4529508A1/de active Pending
- 2023-03-24 CN CN202380042124.3A patent/CN119255924A/zh active Pending
- 2023-03-24 WO PCT/EP2023/057676 patent/WO2023227274A1/de not_active Ceased
-
2024
- 2024-11-25 US US18/958,567 patent/US20250083495A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20250083495A1 (en) | 2025-03-13 |
| WO2023227274A1 (de) | 2023-11-30 |
| CN119255924A (zh) | 2025-01-03 |
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Owner name: HELLA GMBH & CO. KGAA |