Coolant runner plate

Abstract

This invention provides a coolant flow channel plate, relating to the technical field of vehicle thermal management. It includes a cover plate fixed to the top of a main board, with the main board and cover plate welded together at their side edges to form an internal flow channel cavity. The cover plate has refrigeration unit inlet / outlet assemblies on its surface. The main board has, from left to right, a heater pump mounting port, a battery pump mounting port, and a motor pump mounting port. The circuits between the heater pump and battery pump mounting ports, and between the heater pump and motor pump mounting ports, within the internal flow channel cavity are each equipped with a first anti-heat-spreading section. The circuit between the motor pump and battery pump mounting ports forms a variable-diameter section, with a second anti-heat-spreading section at its front end. A guide section is provided on the circuit of the battery pump mounting port. This invention solves the problem of lacking anti-heat-spreading structures at the connection points of circuits in different temperature ranges, achieving the technical effects of reducing vehicle weight, reducing vehicle connection piping, reducing heat loss in the thermal management system, and improving thermal management efficiency.

Description

Technical Field

[0001] This invention relates to the field of vehicle thermal management technology, and in particular to a coolant flow channel plate. Background Technology

[0002] The flow channel plate on the coolant side mainly serves as a carrier for the storage, flow and distribution of coolant. It undertakes the function of connecting multiple subsystems such as motor heat dissipation, battery thermal management, and passenger compartment heating. It can replace the complex distributed piping components in the traditional thermal management system and plays a decisive role in the overall vehicle thermal management efficiency, space utilization and lightweight level.

[0003] In the prior art, the coolant flow channel plate is mainly composed of two parts: the flow channel plate main plate and the flow channel plate cover plate. The two are assembled into one piece by hot plate welding process to form a complete flow channel cavity.

[0004] However, existing flow channel plates lack anti-heat-crossing structures at the connection points of circuits in different temperature ranges, leading to easy cross-flow and mixing of coolants at different temperature levels in the motor circuit, battery circuit, and heater circuit during the flow process. Unnecessary contact between high-temperature and low-temperature coolants causes heat loss in the thermal management system, which not only reduces the thermal management efficiency of each subsystem but also increases the vehicle's energy consumption, affecting driving range and operating economy. Summary of the Invention

[0005] The purpose of this invention is to provide a coolant flow channel plate to alleviate the technical problem in the prior art of lacking anti-heat-spreading structures at the connection points of circuits in different temperature ranges.

[0006] The coolant flow channel plate provided by the present invention includes: a main board, a cover plate, a heater water pump mounting port, a battery water pump mounting port, a motor water pump mounting port, a chiller inlet and outlet water inlet assembly, a first heat-preventing part, a second heat-preventing part, a flow guide part, and a diameter-changing part. The top of the main board is fixed to the cover plate, and the main board and the cover plate are welded to the two side edges to form an internal flow channel cavity; the surface of the cover plate is provided with the chiller inlet and outlet water port assembly, and the surface of the main board is provided with the heater water pump installation port, the battery water pump installation port and the motor water pump installation port from left to right. The circuits between the heating water pump mounting port and the battery water pump mounting port, and between the heating water pump mounting port and the motor water pump mounting port in the internal flow channel cavity are all equipped with a first heat-prevention section; the circuit between the motor water pump mounting port and the battery water pump mounting port forms a variable diameter section, and a second heat-prevention section is provided at the front end of the variable diameter section; a flow guide section is provided on the circuit of the battery water pump mounting port.

[0007] Furthermore, the first heat-preventing section is in the shape of a two-stage fishbone, and the minimum flow cross-sectional spacing between the fishbones of the first heat-preventing section is 4.9mm to 4.95mm; The second heat-prevention section is shaped like a semi-fishbone, and the minimum flow cross-sectional spacing between the fishbones of the second heat-prevention section is 7mm to 7.02mm.

[0008] Furthermore, the guide section is in the shape of a single fishbone, the minimum flow cross section spacing of the guide section is 11mm to 11.15mm, and the corresponding diameter-changing section of the guide section is in the shape of a trumpet.

[0009] Furthermore, the minimum flow cross-sectional spacing of the variable diameter section is 8mm to 9mm.

[0010] Furthermore, an expansion tank mounting port is provided on the surface of the motherboard above the battery water pump mounting port; The motherboard has a mounting surface for the first electronic four-way water valve above the motor and water pump mounting port. The motherboard has a second electronic four-way water valve mounting surface located above the heater pump mounting port.

[0011] Furthermore, the chiller inlet and outlet assembly includes a chiller outlet located on the lower side of the cover plate surface and a chiller inlet located on the upper side.

[0012] Furthermore, the motherboard surface is provided with multiple water pipe interfaces, including HWT water outlet, PTC water outlet, motor water outlet and radiator water outlet; The HWT and PTC water outlets are high-temperature interfaces of the heating circuit and are located on the same side. The motor water outlet is a high-temperature interface of the motor circuit and is located in the middle. The radiator water outlet is a low-temperature interface of the motor circuit and is located on the far right.

[0013] Furthermore, the lateral distance between the HWT water outlet and the motor water outlet after translation is 93mm, and the lateral distance between the motor water outlet and the radiator water outlet after translation is 247mm.

[0014] Furthermore, a first water valve is mounted on the mounting surface of the first electronic four-way water valve by bolts, and a second water valve is mounted on the mounting surface of the second electronic four-way water valve by bolts. The first water valve is connected to the kettle and the motor water pump via a first pipeline. The first water valve is connected to the motor via a second pipeline. The first water valve, the second water valve, and the chiller are connected via a third pipeline. The second water valve is connected to the HWT via a fourth pipeline. The second water valve is connected to the PTC, the chiller, and the warm air water pump via a fifth pipeline. The second water valve is connected to the battery water pump via a sixth pipeline.

[0015] Beneficial effects: The coolant flow channel plate provided by this invention forms a closed internal flow channel cavity by welding the main board and cover plate together through the two side edges. Combined with the refrigeration unit inlet / outlet components integrated on the cover plate and the heater pump, battery pump, and motor pump mounting ports arranged in an orderly manner on the main board surface, the coolant-side flow channel plate is integrated. This significantly reduces the number of external pipes, fasteners, and other components in the vehicle's coolant system, not only reducing overall vehicle weight and manufacturing costs but also saving considerable space. Simultaneously, the closed internal flow channel cavity shortens the coolant flow path, avoiding the additional flow resistance caused by traditional long pipes and effectively reducing pressure loss in the vehicle system.

[0016] The first anti-heat-crossing section between the heater pump mounting port and the battery pump mounting port, and between the heater pump mounting port and the motor pump mounting port, effectively blocks heat crosstalk. The second anti-heat-crossing section, through optimized flow channel cross-sections, increases flow resistance at the connection points between different circuits, reducing crosstalk flow and further enhancing heat insulation. The guide section directs the orderly flow of low-temperature coolant, preventing excessive mixing with the high-temperature coolant in the heater circuit. These structures work together to increase the flow resistance between different circuits, thereby reducing flow rate. Furthermore, the use of different herringbone stages and flow cross-sectional areas between different circuits accommodates varying flow resistance requirements under different system modes, reducing the impact of coolant heat crosstalk in different temperature ranges, improving the performance of the thermal management system, and reducing overall vehicle energy consumption. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the coolant flow channel plate provided in an embodiment of the present invention; Figure 2 A front view of the coolant flow channel plate provided in an embodiment of the present invention; Figure 3 This is a rear view of the coolant flow channel plate provided in an embodiment of the present invention; Figure 4 A side view of a coolant flow channel plate provided in an embodiment of the present invention; Figure 5 This is a partially enlarged view of the heat-preventing section in the coolant flow channel plate provided in an embodiment of the present invention.

[0019] Icons: 1-Main board; 2-Cover plate; 3-Heat air pump mounting port; 4-Battery pump mounting port; 5-Motor pump mounting port; 6-First anti-heat spur section; 7-Second anti-heat spur section; 8-Flow guide section; 9-Reducing diameter section; 10-Expansion tank mounting port; 11-First electronic four-way water valve mounting surface; 12-Second electronic four-way water valve mounting surface; 13-Refrigerator outlet; 14-Refrigerator inlet; 15-HWT outlet; 16-PTC outlet; 17-Motor outlet; 18-Radiator outlet; 19-First pipeline; 20-Second pipeline; 21-Third pipeline; 22-Fourth pipeline; 23-Fifth pipeline; 24-Sixth pipeline. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] like Figures 1-5 As shown, the coolant flow channel plate provided by the present invention includes: a main board 1, a cover plate 2, a heater water pump mounting port 3, a battery water pump mounting port 4, a motor water pump mounting port 5, a chiller inlet and outlet water inlet assembly, a first heat-preventing part 6, a second heat-preventing part 7, a flow guide part 8, and a diameter-changing part 9. The top of the main board 1 is fixed to the cover plate 2. The main board 1 and the cover plate 2 are welded together at the two side edges to form an internal flow channel cavity. The surface of the cover plate 2 is provided with a chiller inlet and outlet water port assembly. The surface of the main board 1 is provided with a warm air water pump installation port 3, a battery water pump installation port 4 and a motor water pump installation port 5 from left to right. The circuits between the heating water pump mounting port 3 and the battery water pump mounting port 4, and between the heating water pump mounting port 3 and the motor water pump mounting port 5 in the internal flow channel cavity are all provided with a first heat-prevention part 6; the circuit between the motor water pump mounting port 5 and the battery water pump mounting port 4 forms a diameter-changing part 9, and a second heat-prevention part 7 is provided at the front end of the diameter-changing part 9; a flow guide part 8 is provided on the circuit of the battery water pump mounting port 4.

[0028] Specifically, the coolant-side flow channel plate is a welded one-piece structure made of PP+GF20. It consists of two parts: the main board 1 and the cover plate 2. After injection molding, the two parts are welded together using a hot plate welding process and then fixed to the vehicle with screws. The refrigeration unit inlet and outlet components are directly set on the outer surface of the cover plate 2 and communicate with the internal flow channel cavity to achieve the circulation connection between the coolant and the refrigeration unit. The outer surface of the main board 1 has three mounting ports arranged from left to right: a heater pump mounting port 3, a battery pump mounting port 4, and a motor pump mounting port 5. All three ports communicate with the internal flow channel cavity, providing precise interfaces for the assembly of the corresponding pumps. In the internal flow channel cavity, the first anti-heat-spreading part 6 is provided in two sets, respectively arranged on the loop path between the heater water pump installation port 3 and the battery water pump installation port 4, and on the loop path between the heater water pump installation port 3 and the motor water pump installation port 5, and is integrally formed with the inner wall of the flow channel cavity; the loop section of the motor water pump installation port 5 facing the battery water pump installation port 4 naturally forms a variable diameter part 9, and the front end of the variable diameter part 9 is provided with the second anti-heat-spreading part 7, and the flow guide part 8 is directly integrally formed along the loop path corresponding to the battery water pump installation port 4, and fits against the inner wall of the flow channel cavity.

[0029] The welded connection between the main board 1 and the cover plate 2 ensures the sealing reliability of the internal flow channel cavity, effectively avoiding the risk of coolant leakage. It also replaces the traditional decentralized piping connection method, significantly reducing the number of external pipes, fasteners, and other components. This not only reduces the overall vehicle weight but also saves space in the vehicle layout. Furthermore, it allows for more organized installation of the heater pump, battery pump, and motor pump, simplifying the assembly process and improving assembly efficiency and ease of maintenance. In addition, the specifically designed first and second anti-heat-spreading sections 6 and 7 effectively block heat crosstalk between different circuits. The variable diameter section 9 adjusts the flow resistance of the circuit by optimizing the flow channel cross-sectional dimensions, while the guide section 8 guides the coolant to flow orderly along a preset path, preventing excessive mixing of coolants in different temperature ranges. The synergistic effect of these three components reduces heat loss in the vehicle's thermal management system, improves the accuracy of motor cooling, battery thermal management, and passenger compartment heating, thereby reducing overall vehicle energy consumption and extending driving range.

[0030] In an embodiment of the present invention, the first heat-preventing part 6 is in the shape of a two-stage fishbone, and the minimum flow cross-sectional spacing between the fishbones of the first heat-preventing part 6 is 4.9mm to 4.95mm (preferably 4.95mm). The second heat-preventing section 7 is shaped like a semi-fishbone, and the minimum flow cross-sectional spacing between the fishbones of the second heat-preventing section 7 is 7mm to 7.02mm (preferably 7.02mm). The flow guide section 8 is shaped like a single fishbone, and the minimum flow cross-sectional spacing of the flow guide section 8 is 11mm to 11.15mm (preferably 11.15mm), and the corresponding diameter-changing section 9 of the flow guide section 8 is shaped like a trumpet.

[0031] The minimum flow cross-sectional spacing of the variable diameter section 9 is 8mm to 9mm, preferably 9mm.

[0032] An expansion tank mounting port 10 is provided on the surface of the motherboard 1 above the battery water pump mounting port 4; a first electronic four-way water valve mounting surface 11 is provided on the surface of the motherboard 1 above the motor water pump mounting port 5; and a second electronic four-way water valve mounting surface 12 is provided on the surface of the motherboard 1 above the heater water pump mounting port 3.

[0033] Specifically, the surface layout of the mainboard 1 follows an adaptive assembly logic. The expansion tank mounting port 10 is located above the battery water pump mounting port 4, the first electronic four-way water valve mounting surface 11 is located above the motor water pump mounting port 5, and the second electronic four-way water valve mounting surface 12 is located above the heater water pump mounting port 3. All mounting ports and surfaces form an integrated structure with the mainboard 1, providing a stable and precise assembly benchmark for core components such as the expansion tank, electronic water pump, and electronic four-way water valve. The expansion tank and electronic four-way water valve are sealed with sealing rings and fixedly installed at the expansion tank mounting port 10, the first electronic four-way water valve mounting surface 11, and the second electronic four-way water valve mounting surface 12 with M5x18 and M6x35 bolts, respectively. This replaces the traditional decentralized pipeline connection method, significantly reducing the number of connecting pipes, fasteners, and other parts, simplifying the assembly process, saving overall vehicle layout space, and reducing overall vehicle weight and cost.

[0034] The first anti-heat-spreading section 6, the second anti-heat-spreading section 7, the flow guide section 8, and the diameter-changing section 9 are all integrated into the internal flow channel system of the flow channel plate. The minimum flow cross-section spacing between the two-stage fishbone-shaped sections of the first anti-heat-spreading section 6 is about 4.95 mm, and the minimum flow cross-section spacing between the first and a half-stage fishbone-shaped sections of the second anti-heat-spreading section 7 is about 7.02 mm, which can effectively increase the flow channel resistance between different temperature circuits. The minimum flow cross-section spacing of the single fishbone-shaped flow channel of the flow guide section 8 is about 11.15 mm, and the minimum flow cross-section spacing of the funnel-shaped diameter-changing section 9 is about 9 mm. These features ensure smooth flow of coolant and significantly suppress heat spread of coolant between different temperature ranges, thereby reducing system flow resistance and heat loss.

[0035] It should be noted that fishbone-like structures, such as Figure 5 As shown, the tube wall is integrally formed and bent into a shape similar to a fishbone.

[0036] In an embodiment of the present invention, the chiller inlet / outlet assembly includes a chiller outlet 13 disposed on the lower side of the surface of the cover plate 2 and a chiller inlet 14 disposed on the upper side.

[0037] The surface of the motherboard 1 is provided with multiple water pipe interfaces, including HWT water outlet 15, PTC water outlet 16, motor water outlet 17 and radiator water outlet 18. HWT water outlet 15 and PTC water outlet 16 are high-temperature interfaces of the heating circuit and are located on the same side. Motor water outlet 17 is a high-temperature interface of the motor circuit and is located in the middle. Radiator water outlet 18 is a low-temperature interface of the motor circuit and is located on the far right.

[0038] The lateral distance between the HWT water outlet 15 and the translated motor water outlet 17 is 93mm, and the lateral distance between the motor water outlet 17 and the translated radiator water outlet 18 is 247mm.

[0039] The first electronic four-way water valve is mounted on the mounting surface 11 of the first electronic four-way water valve by bolts, and the second electronic four-way water valve is mounted on the mounting surface 12 of the second electronic four-way water valve by bolts; the first water valve is connected to the kettle and the motor water pump by a first pipe 19, the first water valve is connected to the motor by a second pipe 20, the first water valve, the second water valve and the chiller are connected by a third pipe 21, the second water valve is connected to the HWT by a fourth pipe 22, the second water valve is connected to the PTC, the chiller and the warm air water pump by a fifth pipe 23, and the second water valve is connected to the battery water pump by a sixth pipe 24.

[0040] Specifically, the chiller outlet 13 is located on the lower side of the cover plate 2, and the chiller inlet 14 is correspondingly located on the upper side of the cover plate 2. Their vertical arrangement provides a direct interface for the coolant circulation between the chiller and the flow channel plate. Multiple water pipe interfaces are neatly arranged on the surface of the main board 1. The HWT outlet 15 and PTC outlet 16 are both high-temperature interfaces in the heating circuit and are concentrated on the same side. The motor outlet 17, as a high-temperature interface in the motor circuit, is located in the middle, while the radiator outlet 18, as a low-temperature interface in the motor circuit, is located on the far right, clearly defining the interfaces for different temperature ranges. The lateral distance between the HWT outlet 15 and the repositioned motor outlet 17 is set at 93mm, and the lateral distance between the motor outlet 17 and the repositioned radiator outlet 18 is set at 247mm. This spacing arrangement balances space utilization and insulation requirements, optimizing assembly layout efficiency and enhancing the performance of the thermal management system. The water pipe interfaces with different temperature attributes are arranged in separate zones with a reasonable lateral spacing, avoiding heat mixing problems caused by close contact between high-temperature and low-temperature interfaces. The spacing of 93mm and 247mm effectively weakens the heat conduction interference between different temperature circuits, which can effectively reduce the heat mixing problem between interfaces of different temperature circuits, improve the efficiency of the motor cooling system, and reduce the overall vehicle energy consumption.

[0041] The first electronic four-way water valve is mounted on mounting surface 11 with bolts, and the second electronic four-way water valve is mounted on mounting surface 12 with bolts. The first water valve is connected to the water tank and motor water pump via the first pipe 19, and connected to the motor via the second pipe 20. The first and second water valves are connected to the refrigeration unit via the third pipe 21, forming a closed loop. The second water valve is connected to the HWT via the fourth pipe 22, and simultaneously connected to the PTC, refrigeration unit, and heater pump via the fifth pipe 23. It is also connected to the battery water pump via the sixth pipe 24. The connections of each pipe, water valve, and functional component form a complete coolant distribution circuit. The centralized connection layout simplifies the assembly process, saves space in the vehicle layout, and reduces the amount of fasteners and other parts. While reducing the weight and cost of the vehicle, it also reduces heat loss in the thermal management system, thereby improving the range and energy-saving effect of the new energy vehicle.

[0042] Based on the coolant flow channel plate provided in the above embodiments, the measured data of the anti-heat-spreading fishbone structure under extreme working conditions are shown in Table 1.

[0043] Table 1

[0044] Therefore, the coolant flow channel plate provided by the present invention can effectively reduce the heat mixing problem between different temperature circuit interfaces, so that the final heat leakage result is less than the heat leakage target.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coolant flow channel plate, characterized in that, include: Main board (1), cover plate (2), heating water pump mounting port (3), battery water pump mounting port (4), motor water pump mounting port (5), chiller inlet and outlet water assembly, first anti-heat escaping part (6), second anti-heat escaping part (7), flow guide part (8) and diameter change part (9); The cover plate (2) is fixed to the top of the main board (1), and the main board (1) and the cover plate (2) are welded together at both sides to form an internal flow channel cavity; the cover plate (2) is provided with the chiller inlet and outlet water inlet assembly, and the main board (1) is provided with the heater water pump installation port (3), the battery water pump installation port (4) and the motor water pump installation port (5) from left to right. The circuit between the heating water pump mounting port (3) and the battery water pump mounting port (4) in the internal flow channel cavity, and the circuit between the heating water pump mounting port (3) and the motor water pump mounting port (5) are all provided with the first anti-heat escaping part (6); the circuit between the motor water pump mounting port (5) and the battery water pump mounting port (4) forms the variable diameter part (9), the front end of the variable diameter part (9) is provided with the second anti-heat escaping part (7), and the flow guide part (8) is provided on the circuit of the battery water pump mounting port (4).

2. The coolant flow channel plate according to claim 1, characterized in that, The first heat-preventing section (6) is in the shape of a two-stage fishbone, and the minimum flow cross-sectional spacing between the fishbones of the first heat-preventing section (6) is 4.9mm to 4.95mm. The second heat-preventing section (7) is in the shape of a semi-fishbone, and the minimum flow cross-section spacing between the fishbones of the second heat-preventing section (7) is 7mm to 7.02mm.

3. The coolant flow channel plate according to claim 1, characterized in that, The guide section (8) is in the shape of a single fishbone, the minimum flow cross section spacing of the guide section (8) is 11mm to 11.15mm, and the variable diameter section (9) corresponding to the guide section (8) is in the shape of a trumpet.

4. The coolant flow channel plate according to claim 3, characterized in that, The minimum flow cross-section spacing of the variable diameter section (9) is 8mm to 9mm.

5. The coolant flow channel plate according to claim 1, characterized in that, The surface of the motherboard (1) is provided with an expansion tank mounting port (10) above the battery water pump mounting port (4). The surface of the main board (1) is provided with a first electronic four-way water valve mounting surface (11) above the motor water pump mounting port (5). The surface of the main board (1) is provided with a second electronic four-way water valve mounting surface (12) above the heating water pump mounting port (3).

6. The coolant flow channel plate according to claim 1, characterized in that, The chiller inlet and outlet assembly includes a chiller outlet (13) located on the lower side of the surface of the cover plate (2) and a chiller inlet (14) located on the upper side.

7. The coolant flow channel plate according to claim 1, characterized in that, The surface of the motherboard (1) is provided with multiple water pipe interfaces, including HWT water outlet (15), PTC water outlet (16), motor water outlet (17) and radiator water outlet (18). The HWT water outlet (15) and the PTC water outlet (16) are high-temperature interfaces of the heating circuit and are located on the same side. The motor water outlet (17) is a high-temperature interface of the motor circuit and is located in the middle. The radiator water outlet (18) is a low-temperature interface of the motor circuit and is located on the far right.

8. The coolant flow channel plate according to claim 7, characterized in that, The lateral distance between the HWT water outlet (15) and the translated motor water outlet (17) is 93mm, and the lateral distance between the motor water outlet (17) and the translated radiator water outlet (18) is 247mm.

9. The coolant flow channel plate according to claim 5, characterized in that, A first water valve is installed on the mounting surface (11) of the first electronic four-way water valve by bolts, and a second water valve is installed on the mounting surface (12) of the second electronic four-way water valve by bolts; The first water valve is connected to the kettle and the motor water pump via a first pipeline (19). The first water valve is connected to the motor via a second pipeline (20). The first water valve, the second water valve, and the chiller are connected via a third pipeline (21). The second water valve is connected to the HWT via a fourth pipeline (22). The second water valve is connected to the PTC, the chiller, and the warm air water pump via a fifth pipeline (23). The second water valve is connected to the battery water pump via a sixth pipeline (24).

Images