Integrated water side heat management module, heat management system and vehicle

Abstract

The invention discloses an integrated water side heat management module which comprises a water side runner plate assembly, an electric drive water pump, a battery water pump, a cooler and a four-way water valve, the electric drive water pump, the battery water pump, the cooler and the four-way water valve are arranged on the water side runner plate assembly, and a water channel is formed in the water side runner plate assembly. According to the integrated water side heat management module, the integrated design of water side parts is achieved, about six pipelines and connecting structures are reduced, the energy transfer path of refrigeration and heating is greatly shortened, the transfer efficiency is greatly improved, through the integrated design, the connecting structures are greatly reduced, system failure points are reduced, the cost is reduced, and the energy consumption is reduced. And the reliability is also improved, and more space is saved for the whole vehicle. The invention further discloses a thermal management system and a vehicle.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile thermal management, and in particular relates to an integrated water-side thermal management module, a thermal management system and a vehicle. Background Art

[0002] As the proportion of pure electric new energy vehicles gradually increases, the thermal management of the whole vehicle has expanded from single engine cooling to motor cooling, battery heating, battery cooling, passenger compartment heating, and passenger compartment cooling. In order to control energy consumption, water valves are added between the systems for interaction, resulting in a large increase in the thermal management components of the whole vehicle and an exponential increase in cooling pipes, which has led to a significant increase in the cost of the thermal management module of the whole vehicle. Reducing components and lowering costs have become urgent things for all OEMs.

[0003] The pure electric vehicle in the prior art includes one to three sets of coolant circulation circuits: a battery cooling circuit, a motor electronic control cooling circuit, and an air conditioning circuit. According to the configuration requirements of the whole vehicle, for example, the Chinese patent with publication number CN115139736A discloses an integrated kettle, including a kettle body, on which a battery water pump, a motor water pump and a five-way valve assembly are integrated and installed, and a separated chamber No. 1 and chamber No. 2 are provided in the kettle body, and an installation cavity corresponding to the five-way valve assembly is provided between the chamber No. 1 and the chamber No. 2, and a first kettle outlet and a first outlet are provided on the chamber No. 1. The inlet of the kettle, the second inlet of the kettle is provided on the installation cavity, the third inlet of the kettle, the second kettle outlet and the third kettle outlet are provided on the second chamber, the five-way valve assembly includes the first valve port, the second valve port, the third valve port, the fourth valve port and the fifth valve port, the first interface corresponding to the first valve port and the second interface corresponding to the fourth valve port are provided in the installation cavity, the first chamber is provided with a first pipe cavity connecting the first interface and the first kettle outlet, the second chamber is provided with a second pipe cavity connecting the second interface and the third kettle outlet, and the second kettle outlet is arranged in the second pipe cavity. The disadvantage is that the application only integrates some parts on the water side, the number of cooling pipelines is large, and there is no overall plan, the X-direction size is large, and the structure is not integrated enough.

[0004] It is desirable to provide an improved integrated water-side thermal management module, particularly with regard to improving the integration level so that the entire cooling pipeline and connection structure can be significantly reduced. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an integrated water-side thermal management module, the purpose of which is to improve the integration level and reduce the number of cooling pipelines.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an integrated water-side thermal management module, including a water-side flow channel plate assembly and an electric-driven water pump, a battery water pump, a cooler and a four-way water valve arranged on the water-side flow channel plate assembly, and a water channel is arranged inside the water-side flow channel plate assembly.

[0007] A water storage chamber is arranged inside the water side flow channel plate assembly, and the water storage chamber is communicated with the electric drive water pump, the battery water pump, the cooler and the four-way water valve.

[0008] The water side flow channel plate assembly is provided with a filling port which is in communication with the water storage cavity.

[0009] A two-way valve cover is arranged on the filling port.

[0010] The four-way valve includes a first water inlet, a second water inlet, a third water inlet and a fourth water inlet. The first water inlet is configured to connect to the water inlet end of the battery circuit, the second water inlet is configured to connect to the water outlet end of the battery circuit, the third water inlet is configured to connect to the water inlet end of the electric drive circuit, and the fourth water inlet is configured to connect to the water outlet end of the electric drive circuit. The electric drive water pump is configured to connect to the electric drive circuit, and the battery water pump is configured to connect to the battery circuit.

[0011] The first water inlet is configured to be selectively connected to the second water inlet and the fourth water inlet, and the third water inlet is configured to be selectively connected to the second water inlet and the fourth water inlet; when the first water inlet is connected to the second water inlet, the third water inlet is connected to the fourth water inlet; when the first water inlet is connected to the fourth water inlet, the third water inlet is connected to the second water inlet.

[0012] The water side flow channel plate assembly includes a first water side flow channel plate and a second water side flow channel plate connected to each other, and the electric drive water pump, battery water pump, cooler and four-way water valve are arranged on the first water side flow channel plate.

[0013] The first water side flow channel plate and the second water side flow channel plate are injection molded parts, and the first water side flow channel plate and the second water side flow channel plate are welded.

[0014] The present invention also provides a thermal management system, comprising the integrated water-side thermal management module.

[0015] The present invention also provides a vehicle, comprising the thermal management system.

[0016] The integrated water-side thermal management module of the present invention realizes the integrated design of water-side parts, reduces about 6 pipes and connection structures, greatly shortens the energy transfer path for cooling and heating, and greatly improves the transfer efficiency. Moreover, through the integrated design, the connection structure is greatly reduced, and the system failure points are reduced. Not only the cost is reduced, but the reliability performance is also improved, and more space is saved for the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the present invention, and the dotted box is the water side components integrated in the integrated module;

[0018] Figure 2 This is the principle diagram of the present invention, and the principle diagram after the water side module is integrated;

[0019] Figure 3 It is the front view and the right view of the present invention;

[0020] Figure 4 is a top view of the present invention;

[0021] Figure 5 is a rear view of the present invention;

[0022] Figure 6 It is an exploded view of key components in the present invention;

[0023] Figure 7 It is the front view, right view and rear view of the second water side flow channel plate of the present invention;

[0024] Figure 8 It is the front view, right view and rear view of the first water side flow channel plate of the present invention;

[0025] Fig. 9 It is the front view, right view and rear view of the four-way water valve of the present invention;

[0026] The marks in the above figures are: 1. First water side flow channel plate; 2. Second water side flow channel plate; 3. Electric drive water pump; 4. Battery water pump; 5. Four-way water valve; 6. Cooler; 7. Two-way valve cover; 8. Compressor; 9. High-pressure charging valve; 10. Stop valve; 11. Air conditioning system; 12. Low-pressure charging valve; 13. Radiator; 14. Condenser; 15. Cooling fan; 16. Three-way valve; 17. Drive motor; 18. Electronic control; 19. Battery pack; 20. Integrated water side thermal management module; 21. First water inlet; 22. Second water inlet; 23. Third water inlet; 24. Fourth water inlet. DETAILED DESCRIPTION

[0027] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and facilitating its implementation.

[0028] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower" and similar expressions used in this article are for illustrative purposes only.

[0029] It should be noted that, in the following embodiments, the “first”, “second” and “third” mentioned do not represent an absolute distinction in structure and / or function, nor do they represent a sequence of execution, but are merely for the convenience of description.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] like Figures 1 to 9 As shown, the present invention provides an integrated water-side thermal management module, including a water-side flow channel plate assembly and an electric-driven water pump 3, a battery water pump 4, a cooler 6 and a four-way water valve 5 arranged on the water-side flow channel plate assembly, and a water channel is arranged inside the water-side flow channel plate assembly.

[0032] A water storage chamber is provided inside the water side flow channel plate assembly, and the water storage chamber is communicated with the electric drive water pump 3 , the battery water pump 4 , the cooler 6 and the four-way water valve 5 .

[0033] The water side flow channel plate assembly is provided with a filling port which is in communication with the water storage cavity.

[0034] A two-way valve cover 7 is provided on the filling port.

[0035] The four-way valve includes a first water inlet, a second water inlet, a third water inlet and a fourth water inlet. The first water inlet is configured to connect to the water inlet end of the battery circuit, the second water inlet is configured to connect to the water outlet end of the battery circuit, the third water inlet is configured to connect to the water inlet end of the electric drive circuit, and the fourth water inlet is configured to connect to the water outlet end of the electric drive circuit. The electric drive water pump 3 is configured to connect to the electric drive circuit, and the battery water pump 4 is configured to connect to the battery circuit.

[0036] The first water inlet is configured to be selectively connected to the second water inlet and the fourth water inlet, and the third water inlet is configured to be selectively connected to the second water inlet and the fourth water inlet; when the first water inlet is connected to the second water inlet, the third water inlet is connected to the fourth water inlet; when the first water inlet is connected to the fourth water inlet, the third water inlet is connected to the second water inlet.

[0037] The water side flow channel plate assembly includes a first water side flow channel plate 1 and a second water side flow channel plate 2 connected to each other, and the electric drive water pump 3, the battery water pump 4, the cooler 6 and the four-way water valve 5 are arranged on the first water side flow channel plate 1.

[0038] The first water side flow channel plate 1 and the second water side flow channel plate 2 are injection molded parts, and the first water side flow channel plate 1 and the second water side flow channel plate 2 are connected by welding.

[0039] like Figure 1 and Figure 2 As shown, the present invention also provides a thermal management system, including the integrated water-side thermal management module.

[0040] The present invention also provides a vehicle, comprising the thermal management system.

[0041] Example

[0042] First, as Figures 1 to 9 As shown, an embodiment of the present invention provides an integrated water-side thermal management module, including a water-side flow channel plate assembly and an electric-driven water pump 3, a battery water pump 4, a cooler 6 and a four-way water valve 5 arranged on the water-side flow channel plate assembly. The electric-driven water pump 3, the battery water pump 4, the cooler 6 and the four-way water valve 5 are integrated on the water-side flow channel plate assembly, and a water channel is arranged inside the water-side flow channel plate assembly.

[0043] Specifically, based on the deficiencies in the prior art, the integrated water-side thermal management module provided by the present invention can integrate various components on the water side into one component, including a battery water pump 4, an electric drive water pump 3, a battery expansion pot, an electric drive expansion pot, a four-way water valve 5, a chiller 6 (chiller), a water temperature sensor, a pressure sensor, etc., so that the entire cooling circuit pipeline and connection structure are greatly reduced or eliminated, and the coolant transmission path is reduced, and the transmission efficiency is improved, thereby not only reducing the cost of the whole vehicle, but also improving the system performance. In addition, all the water ports of the four-way valve are designed on the same side of the water side flow channel plate assembly to improve the smooth performance and assembly efficiency of the pipeline layout.

[0044] like Figures 3 to 7 As shown, a water storage chamber is arranged inside the water side flow channel plate assembly, and the water storage chamber is connected to the electric drive water pump 3, the battery water pump 4, the cooler 6 and the four-way water valve 5. Different refilling ports are arranged on the lower side of the water storage chamber to meet the refilling requirements of the electric drive circuit and the battery circuit at the same time. The shared cavity makes the volume of the kettle smaller than that of the two separate cavities, and the volume is small. A filling port connected to the water storage chamber is arranged on the water side flow channel plate assembly, and a two-way valve cover 7 is arranged on the filling port. The electric drive circuit and the battery circuit are filled at the same time through the filling port here, and the filling efficiency is high. The filling port is arranged at the upper end of the water side flow channel plate assembly.

[0045] Preferably, the electric drive circuit and the battery circuit expansion kettle use the same chamber, and the electric drive circuit and the battery circuit are replenished at the same time through the replenishment port on the lower side. Since the expansion kettle is configured as a replenishment kettle, the coolant in the expansion kettle does not flow between the two systems, and there is no energy heat exchange problem. A single cavity can meet the replenishment functions of the drive circuit and the battery circuit.

[0046] Preferably, a two-way valve cover 7 is provided on the upper side of the water-side integrated module. The two-way valve cover 7 can be pushed according to the internal pressure to "deflate" and "replenish" the air, so as to keep the integrated module and the system always working within the set pressure range; the liquid level is measured by observing the MIN and MAX lines on the cavity. When the liquid level is lower than the MIN line, liquid replenishment is required.

[0047] Preferably, the electric-driven water pump 3 and the battery-driven water pump 4 are set to work in different speed ranges for normal operation, so as to avoid the resonance problem of the electric-driven water pump 3 and the battery-driven water pump 4 and improve the NVH performance of the whole vehicle.

[0048] Preferably, the cooler 6 is integrated and there is no need to add a separate bracket to the vehicle body for fixing. Since it is arranged in the front cabin of the vehicle, the air-conditioning pipes are reduced, and the pipes connected to the battery cooling are integrated on the second water side flow channel plate 2 and the first water side flow channel plate 1. The number of pipes is reduced, the heat transfer efficiency is improved, and some connecting pipes are eliminated. At the same time, the system failure points are reduced, and the reliability performance is improved.

[0049] As a preferred embodiment, the integrated water-side thermal management module has a "card-type" layout structure, a small X-direction (body length direction) size, and a regular overall layout, which is suitable for various new energy vehicle models, especially models with compact front cabin space, such as short-head and flat-head new energy vehicle models.

[0050] like Figures 3 to 7 As shown, the four-way valve includes a first water inlet, a second water inlet, a third water inlet and a fourth water inlet. The first water inlet is configured to connect to the water inlet of the battery circuit, the second water inlet is configured to connect to the water outlet of the battery circuit, the third water inlet is configured to connect to the water inlet of the electric drive circuit, the fourth water inlet is configured to connect to the water outlet of the electric drive circuit, the electric drive water pump 3 is configured to connect to the electric drive circuit, the drive motor 17 providing the driving force for the vehicle is configured in the electric drive circuit, the battery water pump 4 is configured to connect to the battery circuit, and the battery pack 19 is configured in the battery circuit. The first water inlet is configured to be selectively connected to the second water inlet and the fourth water inlet, and the third water inlet is configured to be selectively connected to the second water inlet and the fourth water inlet.

[0051] When the first water inlet is connected to the second water inlet, the third water inlet is connected to the fourth water inlet. At this time, the battery circuit and the electric drive circuit are independent of each other.

[0052] When the waste heat of the drive motor 17 is needed to heat the battery pack 19, the four-way water valve 5 is controlled to switch direction. At this time, the first water inlet needs to be controlled to be connected to the fourth water inlet, and the third water inlet needs to be controlled to be connected to the second water inlet, so that the battery circuit and the electric drive circuit water circuit are "connected in series", and the coolant in the electric drive circuit can enter the battery circuit.

[0053] like Figures 3 to 7 As shown, the water side flow channel plate assembly includes a first water side flow channel plate 1 and a second water side flow channel plate 2 connected to each other, an electric drive water pump 3, a battery water pump 4, a cooler 6 and a four-way water valve 5 are arranged on the first water side flow channel plate 1, and a plurality of water channels are arranged inside the second water side flow channel plate 2, and the water channels are respectively connected to the electric drive water pump 3, the battery water pump 4, the cooler 6 and the four-way water valve 5.

[0054] like Figure 6 As shown, the filling port is arranged at the upper end of the first water side flow channel plate 1, which is convenient for cooling and filling. The first cavity is arranged inside the first water side flow channel plate 1, and the second cavity is arranged inside the second water side flow channel plate 2. The first cavity is connected with the second cavity. The water storage cavity is formed by the first cavity and the second cavity. As a single cavity expansion kettle, the electric drive circuit and the battery circuit are replenished through different replenishment ports. The electric drive water pump 3, the battery water pump 4, the cooler 6 and the four-way water valve 5 are located below the first cavity.

[0055] Preferably, the first water side flow channel plate 1 and the second water side flow channel plate 2 are injection molded parts, and the first water side flow channel plate 1 and the second water side flow channel plate 2 are welded. After the integrated water side thermal management module is arranged in the front cabin of the vehicle, the first water side flow channel plate 1 and the second water side flow channel plate 2 are arranged along the X direction (the length direction of the vehicle body), occupying a small space.

[0056] The first water side flow channel plate 1 is provided with a battery water pump 4, an electric drive water pump 3 installation point and a "volute" drainage structure, so that the water pump has a small flow resistance in and out and is highly efficient; the first water side flow channel plate 1 is also provided with a four-way water valve 5, which is divided into 4 water outlets. The four-way valve in the system can switch the electric drive circuit and the battery circuit in "series" or "parallel" under different working conditions of the whole vehicle. For example, in winter, the heat generated by the motor operation is connected in series with the motor circuit and the battery circuit through the four-way water valve 5, so that the waste heat of the drive motor 17 is used to heat the battery pack 19; in summer, the battery needs to be cooled, the battery BMS sends a cooling request, the compressor 8 works, and the refrigerant is cooled through the cooler 6 and the battery circuit, thereby reducing the battery cell temperature of the battery pack 19. At this time, the battery pack 19 needs to be cooled, the water valve is closed, and the battery circuit is "connected in parallel" with the electric drive circuit.

[0057] The integrated water-side thermal management module of the above structure is arranged in the front cabin of the vehicle, which can greatly reduce the X-direction space occupied by parts, such as the "card-type" structure, which is not only suitable for passenger cars, but also for short and flat-head logistics vehicles. The water-side thermal management module integrates a battery kettle, a motor kettle, a four-way valve, a battery water pump 4, a motor water pump, a cooler 6, etc. The internal water flow direction passes through the first water-side flow channel plate 1 and the second water-side flow channel plate 2. The external interface is uniformly planned on the second water-side flow channel plate 2, which simplifies the pipelines and connection fixing structures of the entire vehicle.

[0058] Second, as Figure 1 and Figure 2 As shown, the embodiment of the present invention also provides a thermal management system, including the integrated water-side thermal management module of the above structure. The specific structure of this integrated water-side thermal management module can be referred to Figures 3 to 9 Since the thermal management system of the present invention includes the integrated water-side thermal management module in the above embodiment, it has all the advantages of the above integrated water-side thermal management module.

[0059] like Figure 1 and Figure 2 As shown, the thermal management system includes components such as a compressor 8, a cooling module and a three-way valve 16. The cooling module includes a radiator 13, a condenser 14 and a cooling fan. The cooling fan is used to cool the radiator 13 and the condenser 14. The cooler 6 is connected to the compressor 8, the compressor 8 is connected to the condenser 14, and the condenser 14 is connected to the cooler 6 to form a refrigerant circulation loop.

[0060] The motor water pump is connected to the first water port of the three-way valve 16, the second water port of the three-way valve 16 is connected to the radiator 13, the third water port of the three-way valve 16 is connected to the drive motor 17, and the drive motor 17 is connected to the four-way valve to form a motor circuit.

[0061] The battery water pump 4 is connected to the water side flow channel plate assembly and the four-way valve, the four-way valve is connected to the battery pack 19, and the battery pack 19 is connected to the condenser 14 to form a battery circuit.

[0062] In winter, the heat generated by the driving motor 17 is connected in series with the motor circuit and the battery circuit through the four-way water valve 5 , so that the waste heat of the driving motor 17 is used to heat the battery pack 19 .

[0063] In a summer environment, the battery pack 19 needs to be cooled, the battery BMS sends a cooling request, the compressor 8 starts working, the refrigerant in the refrigerant circulation loop enters the cooler 6, the coolant in the battery circuit enters the cooler 6, the refrigerant and the coolant in the cooler 6 undergo heat exchange, and the coolant with the lowered temperature flows to the battery pack 19, thereby reducing the temperature of the battery cells in the battery pack 19. At this time, the battery pack 19 needs to be cooled, the water valve is closed, and the battery circuit and the electric drive circuit are "connected in parallel".

[0064] In a third aspect, an embodiment of the present invention further provides a vehicle, including a thermal management system of the above structure. The specific structure of the thermal management system can be referred to in Figures 1 to 9 Since the vehicle of the present invention includes the integrated water-side thermal management module in the above embodiment, it has all the advantages of the above integrated water-side thermal management module.

[0065] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. Integrated water-side thermal management module, characterized by: It comprises a water side flow channel plate assembly and an electric drive water pump, a battery water pump, a cooler and a four-way water valve arranged on the water side flow channel plate assembly. A water channel is arranged inside the water side flow channel plate assembly.

2. The integrated water-side thermal management module according to claim 1, characterized in that: A water storage chamber is arranged inside the water side flow channel plate assembly, and the water storage chamber is communicated with the electric drive water pump, the battery water pump, the cooler and the four-way water valve.

3. The integrated water-side thermal management module according to claim 2, characterized in that: The water side flow channel plate assembly is provided with a filling port which is in communication with the water storage cavity.

4. The integrated water-side thermal management module according to claim 3, characterized in that: A two-way valve cover is arranged on the filling port.

5. The integrated water-side thermal management module according to any one of claims 1 to 4, characterized in that: The four-way valve includes a first water inlet, a second water inlet, a third water inlet and a fourth water inlet. The first water inlet is configured to connect to the water inlet end of the battery circuit, the second water inlet is configured to connect to the water outlet end of the battery circuit, the third water inlet is configured to connect to the water inlet end of the electric drive circuit, and the fourth water inlet is configured to connect to the water outlet end of the electric drive circuit. The electric drive water pump is configured to connect to the electric drive circuit, and the battery water pump is configured to connect to the battery circuit.

6. The integrated water-side thermal management module according to claim 5, characterized in that: The first water inlet is configured to be selectively connected to the second water inlet and the fourth water inlet, and the third water inlet is configured to be selectively connected to the second water inlet and the fourth water inlet; when the first water inlet is connected to the second water inlet, the third water inlet is connected to the fourth water inlet; when the first water inlet is connected to the fourth water inlet, the third water inlet is connected to the second water inlet.

7. The integrated water-side thermal management module according to any one of claims 1 to 6, characterized in that: The water side flow channel plate assembly includes a first water side flow channel plate and a second water side flow channel plate connected to each other, and the electric drive water pump, battery water pump, cooler and four-way water valve are arranged on the first water side flow channel plate.

8. The integrated water-side thermal management module according to claim 7, characterized in that: The first water side flow channel plate and the second water side flow channel plate are injection molded parts, and the first water side flow channel plate and the second water side flow channel plate are welded.

9. Thermal management system, characterized in that: It comprises the integrated water-side thermal management module as described in any one of claims 1 to 8.

10. A vehicle, characterized in that: Includes the thermal management system as claimed in claim 9.

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