Threshold beam assembly of integrated heat exchange runner and vehicle

Abstract

The invention relates to a doorsill beam assembly integrated with a heat exchange runner and a vehicle, and belongs to the technical field of vehicle cooling systems.The doorsill beam assembly comprises a doorsill beam body, and an exhaust channel and a cooling liquid channel are arranged in the doorsill beam body; the cooling liquid channel comprises a first cooling liquid channel adjacent to the exhaust channel and a second cooling liquid channel far away from the exhaust channel; the flow path switching device is arranged at the end part of the doorsill beam body, and the flow path switching device is configured to connect the first cooling liquid channel or the second cooling liquid channel into the cooling liquid loop in a switchable manner or isolate the first cooling liquid channel or the second cooling liquid channel from the cooling liquid loop; and the heat exchange efficiency between gas and liquid in the doorsill beam body is adjusted by selecting the position of the channel through which the cooling liquid flows. According to the heat requirement of the load, liquid is selected to flow through the cooling liquid channel adjacent to the exhaust channel or the cooling liquid channel away from the exhaust channel, the heat exchange efficiency can be adjusted, and the heat using requirements of different working conditions are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle cooling systems, in particular to a threshold beam assembly integrated with a heat exchange flow channel and a vehicle. BACKGROUND

[0002] With the development of hybrid vehicle technology, the automotive industry has been exploring more green and efficient power systems. Hybrid vehicles combine traditional fuel engines and electric motors to some extent to achieve energy saving and emission reduction. For hybrid vehicles, due to the need to install battery packs required by traditional engines and electric motors, the space under the vehicle body is particularly tight; therefore, integrating the exhaust pipe with the threshold beam of the vehicle body can arrange the battery pack in the edge-to-edge compact arrangement at the bottom of the vehicle body, making full use of the limited space.

[0003] In related technologies, a patent with publication number CN118082493A discloses an exhaust pipe assembly, a lower vehicle body structure, and a vehicle. The lower vehicle body structure includes an inner pipe and an outer pipe, and the inner pipe forms an exhaust passage. The outer pipe is arranged outside the inner pipe, and a first passage is formed between the outer pipe and the inner pipe. One end of the first passage is open to form an air inlet, and the first passage is used to selectively communicate with a heat circulation pipeline to heat the passenger compartment and / or the battery pack. The heat of the exhaust pipe can be timely removed, and the waste heat of the exhaust pipe can be utilized according to the heat demand of the vehicle, and the reliability is good.

[0004] Although this technical solution can realize the recycling and utilization of exhaust heat, the heat exchange efficiency is fixed and cannot be dynamically adjusted according to the actual operating conditions of the vehicle (such as the rapid heating demand of the battery in a low-temperature environment, the energy-saving demand of the cabin in a high-temperature environment, or the dynamic load change), resulting in that the system always uses a single heat exchange efficiency in the battery thermal management, cabin heating, and other diversified heat use scenarios, and cannot adapt to the matching demand of heat intensity under different working conditions. SUMMARY

[0005] To address the deficiencies or one of the deficiencies in the foregoing background art, the embodiments of the present application provide a threshold beam assembly integrated with a heat exchange flow channel and a vehicle, which can recycle and utilize exhaust heat and adjust the heat exchange efficiency when recycling exhaust heat to match the heat use demand of the load under different working conditions.

[0006] In a first aspect, the embodiments of the present application provide a threshold beam assembly integrated with a heat exchange flow channel, comprising: a threshold beam body, the threshold beam body is provided with an exhaust passage and a cooling liquid passage, the cooling liquid passage includes a first cooling liquid passage adjacent to the exhaust passage and a second cooling liquid passage away from the exhaust passage; A flow path switching device is provided at an end of the rocker beam body, and is configured to switchably connect or isolate the first cooling liquid passage or the second cooling liquid passage from a cooling liquid circuit configured to exchange heat with a heat management demand component of the vehicle, so as to adjust the heat exchange efficiency between the gas and the liquid in the rocker beam body by selecting the passage position through which the cooling liquid flows.

[0007] In the first aspect, in some embodiments, the cooling liquid passage includes a first cooling liquid passage adjacent to the exhaust passage and a second cooling liquid passage away from the exhaust passage. The flow path switching device includes two flow path selection valves respectively arranged at two ends of the rocker beam body. The flow path selection valve is provided with a first interface for connecting the cooling liquid circuit, and a second interface and a third interface for respectively connecting the first cooling liquid passage and the second cooling liquid passage. The flow path selection valve is configured to switchably connect the first interface with the second interface or the third interface.

[0008] In the first aspect, in some embodiments, the first cooling liquid passage extends side by side with the exhaust passage and is separated from the exhaust passage by a common partition wall for heat conduction, and the second cooling liquid passage is provided with a heat insulation structure for inhibiting heat conduction between the second cooling liquid passage and the exhaust passage.

[0009] In the first aspect, in some embodiments, the heat insulation structure includes an air gap, a vacuum cavity or a layer of low thermal conductivity material between the second cooling liquid passage and the exhaust passage.

[0010] In the first aspect, in some embodiments, the second cooling liquid passage is separated from the exhaust passage by the first cooling liquid passage.

[0011] In the first aspect, in some embodiments, the cooling liquid passage includes a first cooling liquid passage, a second cooling liquid passage and a third cooling liquid passage, the first cooling liquid passage is adjacent to the exhaust passage, and the second cooling liquid passage is away from the exhaust passage. The flow path switching device includes an end cap joint and a multi-way valve respectively arranged at two ends of the rocker beam body. The end cap joint is provided with a first water port and a second water port for connecting the cooling liquid circuit in series, the first water port connects the first cooling liquid passage and the second cooling liquid passage, and the second water port connects the third cooling liquid passage. The multi-way valve is configured to selectively connect the third cooling liquid passage with the first cooling liquid passage or the second cooling liquid passage.

[0012] In some embodiments of the first aspect, the first cooling liquid passage and the exhaust passage extend side by side and are separated by a common partition wall for heat conduction; and a heat insulation structure for inhibiting heat conduction is arranged between the second cooling liquid passage and the exhaust passage, and between the third cooling liquid passage and the exhaust passage.

[0013] In some embodiments of the first aspect, the second cooling liquid passage and the exhaust passage are separated by the first cooling liquid passage, and the third cooling liquid passage and the exhaust passage are separated by a fourth cooling liquid passage.

[0014] In some embodiments of the first aspect, the cooling liquid passages include a first cooling liquid passage, a second cooling liquid passage, a third cooling liquid passage, a fourth cooling liquid passage, a fifth cooling liquid passage, and a sixth cooling liquid passage; the first cooling liquid passage, the fourth cooling liquid passage, and the fifth cooling liquid passage are adjacent to the exhaust passage; and the second cooling liquid passage, the third cooling liquid passage, and the sixth cooling liquid passage are away from the exhaust passage. The flow path selection valve includes an end cap joint arranged at each end of the rocker beam body and a multi-way valve; The end cap joint is provided with a first water port and a second water port for being connected in series to a cooling liquid circuit; the first water port is connected to the first cooling liquid passage, the third cooling liquid passage, and the fifth cooling liquid passage; and the second water port is connected to the second cooling liquid passage, the fourth cooling liquid passage, and the sixth cooling liquid passage; The multi-way valve is provided with ports connected to the first cooling liquid passage, the second cooling liquid passage, the third cooling liquid passage, the fourth cooling liquid passage, the fifth cooling liquid passage, and the sixth cooling liquid passage, respectively.

[0015] In some embodiments of the first aspect, the multi-way valve is configured to have a first working state, a second working state, and a third working state; In the first working state, the multi-way valve establishes cooling liquid communication between the fourth cooling liquid passage and the fifth cooling liquid passage, interrupts cooling liquid communication between the first cooling liquid passage and the second cooling liquid passage, and interrupts cooling liquid communication between the third cooling liquid passage and the sixth cooling liquid passage; In the second working state, the multi-way valve establishes cooling liquid communication between the first cooling liquid passage and the second cooling liquid passage, interrupts cooling liquid communication between the third cooling liquid passage and the sixth cooling liquid passage, and interrupts cooling liquid communication between the fifth cooling liquid passage and the fourth cooling liquid passage; In the third working state, the multi-way valve establishes the communication of the third cooling liquid passage and the sixth cooling liquid passage, interrupts the communication of the first cooling liquid passage and the second cooling liquid passage, and interrupts the communication of the fifth cooling liquid passage and the fourth cooling liquid passage.

[0016] In the first aspect, in some embodiments, the first cooling liquid passage, the second cooling liquid passage, the third cooling liquid passage and the exhaust passage extend side by side and are separated by a common partition wall for heat conduction; the second cooling liquid passage, the third cooling liquid passage and the exhaust passage, and the sixth cooling liquid passage and the exhaust passage are provided with heat insulation structures for inhibiting heat conduction.

[0017] In the first aspect, in some embodiments, the second cooling liquid passage is separated from the exhaust passage by the first cooling liquid passage, the third cooling liquid passage is separated from the exhaust passage by the fourth cooling liquid passage, and the sixth cooling liquid passage is separated from the exhaust passage by the fifth cooling liquid passage.

[0018] In the first aspect, in some embodiments, the multi-way valve comprises a valve shell, a plurality of interfaces provided on the valve shell, a valve cavity in the valve shell and communicating the plurality of interfaces, and a valve core rotatably connected in the valve cavity; the side wall of the valve core is provided with a plurality of grooves with different phases in the circumferential direction; The multi-way valve further comprises a driving member for driving the valve core to rotate to different rotation angles; the valve core is switched to different rotation angles to make the interfaces at different positions communicate with each other through the corresponding grooves.

[0019] In the first aspect, in some embodiments, the two ends of the rocker beam body are connected with exhaust pipe adapters communicating with the end of the exhaust passage, and the exhaust pipe adapter comprises a flexible pipe section, which is used to absorb and / or attenuate the vibration energy transmitted by the exhaust pipe.

[0020] In the first aspect, in some embodiments, the exhaust passage and the cooling liquid passage extend along the length direction of the rocker beam body, and the exhaust passage is located below the cooling liquid passage, and the left and right sides and the lower side of the exhaust passage are provided with heat insulation layers.

[0021] In the first aspect, in some embodiments, the exhaust passage and the cooling liquid passage are integrally formed on the rocker beam body, and the exhaust passage and the cooling liquid passage extend along the length direction of the rocker beam body.

[0022] In the first aspect, in some embodiments, the plurality of cooling liquid channels are located on the same side of the exhaust passage, and a strip-shaped block is fixed to the side of the exhaust passage away from the cooling liquid channels, and the surface of the rocker beam body is provided with a threaded blind hole extending into the strip-shaped block.

[0023] In the second aspect, the embodiments of the present application provide a vehicle, comprising: A side wall outer plate, one side of the side wall outer plate is provided with a rocker inner plate, and a cavity is formed between the rocker inner plate and the side wall outer plate; The rocker beam assembly with integrated heat exchange flow channels according to any one of the above is installed in the cavity.

[0024] In the second aspect, in some embodiments, a battery pack is further included, and the end of the battery pack is fixedly connected with the rocker beam assembly through a fastener, and the fastener penetrates the rocker inner plate.

[0025] In the second aspect, in some embodiments, the cooling liquid circuit of the battery pack is connected in series with the cooling liquid channels in the rocker beam body through a flow path switching device.

[0026] The technical solutions provided by the present application have the following beneficial effects: The embodiments of the present application provide a rocker beam assembly with integrated heat exchange flow channels and a vehicle. Since the rocker beam body is provided with an exhaust passage and a cooling liquid channel, the cooling liquid channel includes a first cooling liquid channel adjacent to the exhaust passage and a second cooling liquid channel away from the exhaust passage, and a flow path switching device is configured to switch the first cooling liquid channel or the second cooling liquid channel to be connected to or isolated from the cooling liquid circuit, so as to adjust the heat exchange efficiency between the gas and the liquid in the rocker beam body by selecting the position of the cooling liquid channel through which the cooling liquid flows.

[0027] Therefore, when the rocker beam assembly is connected in series with the cooling liquid circuit of an external load through the flow path switching device, the cooling liquid channels at different positions can be switched to pass through the cooling liquid channel adjacent to or away from the exhaust passage according to the heat demand of the load. When the cooling liquid flows through the cooling liquid channel close to the exhaust passage, the heat exchange efficiency between the cooling liquid and the exhaust gas in the exhaust passage is high, and when the cooling liquid flows through the cooling liquid channel away from the exhaust passage, the heat exchange efficiency between the cooling liquid and the exhaust gas in the exhaust passage is low. Therefore, the heat exchange efficiency between the cooling liquid and the exhaust gas can be adjusted, and the heat usage demand of the load under different working conditions can be matched. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0029] Figure 1 Structure diagram of the rocker beam assembly of the embodiment of the present application; Figure 2 Structure diagram of the rocker beam body of the embodiment of the present application; Figure 3 Structure diagram of the multi-way valve of the embodiment of the present application; Figure 4 Structure diagram of the exhaust pipe adapter of the embodiment of the present application; Figure 5 Structure diagram of another embodiment of the rocker beam body of the embodiment of the present application; Figure 6 Connection diagram of the side outer panel and the rocker inner panel of the embodiment of the present application; Figure 7 Connection diagram of the rocker beam body and the battery pack of the embodiment of the present application.

[0030] In the drawings, the components represented by each reference numeral are listed as follows: 1, rocker beam body; 2, exhaust passage; 3, coolant passage; 31, first coolant passage; 32, second coolant passage; 33, third coolant passage; 34, fourth coolant passage; 35, fifth coolant passage; 36, sixth coolant passage; 4, end cap adapter; 5, multi-way valve; 51, valve housing; 52, interface; 53, valve core; 6, exhaust pipe adapter; 61, flexible pipe section; 7, thermal insulation layer; 8, strip block; 9, side outer panel; 10, rocker inner panel; 11, battery pack. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] To address at least one of the problems in the prior art, embodiments of the present application provide a threshold beam assembly integrated with a heat exchange flow channel, which can recycle waste heat and adjust the heat exchange efficiency when recycling waste heat to match the heat usage demand under different working conditions.

[0033] Referring to Figures 1 to 7 The first aspect of the embodiments of the present application provides a threshold beam assembly integrated with a heat exchange flow channel, which comprises: A threshold beam body 1, which is provided with an exhaust passage 2 and a plurality of cooling liquid passages 3 independent of each other, the cooling liquid passages 3 including a first cooling liquid passage 31 adjacent to the exhaust passage 2 and a second cooling liquid passage 32 away from the exhaust passage 2; A flow path switching device provided at the end of the threshold beam body, which is configured to switch the first cooling liquid passage 31 or the second cooling liquid passage 32 to be connected to or isolated from a cooling liquid circuit, so as to adjust the heat exchange efficiency between the gas and the liquid in the threshold beam body 1 by selecting the passage position through which the cooling liquid flows, and the cooling liquid circuit is configured to exchange heat with a heat management demand component of the vehicle, such as a battery pack, a heating circuit system, a motor or other loads, etc.

[0034] The threshold beam body 1 of the embodiments of the present application is provided with the exhaust passage 2 and the plurality of cooling liquid passages 3, and the flow path switching devices are fixedly installed at both ends of the threshold beam body 1. When the flow path switching devices at both ends are connected to the cooling liquid circuit of the external load, the flow path switching devices can switch the cooling liquid passages 3 at different positions.

[0035] According to the heat demand of the load, the cooling liquid is selected to flow through the liquid passage adjacent to the exhaust passage 2 or the cooling liquid passage 3 away from the exhaust passage 2, so as to adjust the heat exchange efficiency between the cooling liquid and the exhaust gas and match the heat usage demand under different working conditions.

[0036] Exemplarily, the flow path switching device can adopt an electromagnetic valve and a pneumatic valve, and the load can be a battery pack or a cabin heating circuit, etc. When the load needs to be quickly warmed up, the cooling liquid passage 3 connected to the cooling liquid circuit is switched by the flow path switching device, so that the cooling liquid passage 3 through which the cooling liquid flows is close to the exhaust passage 2, the heat transfer path between the cooling liquid and the exhaust gas is increased, and the heat exchange efficiency is improved; When the load temperature is too high or needs to be kept low, another cooling liquid passage 3 connected to the cooling liquid circuit is switched by the flow path switching device, so that the cooling liquid passage 3 through which the cooling liquid flows is away from the exhaust passage 2, the heat transfer path between the cooling liquid and the exhaust gas is reduced, and the heat exchange efficiency is reduced.

[0037] In the first aspect, in some optional embodiments, referring to Figures 1 to 7As shown, the embodiment of the present application provides a threshold beam assembly integrated with a heat exchange runner, and the cooling liquid channel 3 of the threshold beam assembly integrated with the heat exchange runner comprises a first cooling liquid channel 31 adjacent to the exhaust channel 2 and a second cooling liquid channel 32 away from the exhaust channel 2; The flow path switching device comprises two flow path selection valves arranged at two ends of the threshold beam body 1. The flow path selection valve is provided with a first interface for connecting the cooling liquid circuit, and a second interface and a third interface for connecting the first cooling liquid channel 31 and the second cooling liquid channel 32, respectively. The flow path selection valve is configured to be switchable to connect the first interface with the second interface or the third interface.

[0038] In the embodiment of the present application, the flow path selection valves are arranged at two ends of the threshold beam body 1, and the flow path selection valves can be two-position three-way valves driven by electromagnetism or pneumatics, which have a first interface, a second interface and a third interface; the cooling liquid circuit of the external load is connected with the first interfaces of the flow path selection valves at two ends to realize the connection of the threshold beam body 1 in series with the cooling liquid circuit, and the second interface and the third interface are connected with the first cooling liquid channel 31 and the second cooling liquid channel 32, respectively.

[0039] The flow path selection valve is configured to be selectively connected with the first interface, the second interface or the third interface, so that the first cooling liquid channel 31 or the second cooling liquid channel 32 can be connected in series with the cooling liquid circuit.

[0040] The former is that the cooling liquid passes through the first cooling liquid channel 31, and the latter is that the cooling liquid passes through the second cooling liquid channel 32. Since the first cooling liquid channel 31 is adjacent to the exhaust channel 2, and the second cooling liquid channel 32 is away from the exhaust channel 2, the heat exchange efficiency of the former cooling liquid with the exhaust gas is greater than that of the latter cooling liquid with the exhaust gas.

[0041] Specifically, when the first interface and the second interface of the flow path selection valve are connected, the cooling liquid in the cooling liquid circuit is driven by the pump body to enter the first cooling liquid channel 31 from the first interface and the second interface at one side, and after passing through the first cooling liquid channel 31, the cooling liquid is returned to the cooling liquid circuit from the second interface and the first interface at the other side; in this case, the second cooling liquid channel 32 is closed by the flow path selection valve.

[0042] When the first interface and the third interface of the flow path selection valve are connected, the cooling liquid in the cooling liquid circuit is driven by the pump body to enter the second cooling liquid channel 32 from the first interface and the third interface at one side, and after passing through the second cooling liquid channel 32, the cooling liquid is returned to the cooling liquid circuit from the third interface and the first interface at the other side; in this case, the first cooling liquid channel 31 is closed by the flow path selection valve.

[0043] In the first aspect, in some optional embodiments, referring toFigures 1 to 7 As shown in the drawings, the application provides a threshold beam assembly integrated with heat exchange flow channels, a first cooling liquid passage 31 of the threshold beam assembly integrated with heat exchange flow channels extends side by side with the exhaust passage 2 and is separated by a common partition wall for heat conduction, and a heat insulation structure for inhibiting heat conduction is arranged between the second cooling liquid passage 32 and the exhaust passage 2.

[0044] In the application, the first cooling liquid passage 31 extends side by side with the exhaust passage 2 and is separated by a common partition wall for heat conduction, and in addition, the heat insulation structure for inhibiting heat conduction is arranged between the second cooling liquid passage 32 and the exhaust passage 2, the heat insulation structure is not shown in the drawings, and the heat insulation structure can be an air gap, a vacuum cavity or a low thermal conductivity material layer. The arrangement of the partition wall and the heat insulation structure makes the heat exchange efficiency of the cooling liquid with the engine exhaust in the exhaust passage 2 when the cooling liquid passes through the first cooling liquid passage 31 greater than the heat exchange efficiency of the cooling liquid with the engine exhaust in the exhaust passage 2 when the cooling liquid passes through the second cooling liquid passage 32.

[0045] In some optional embodiments of the first aspect, referring to Figures 1 to 7 As shown in the drawings, the application provides a threshold beam assembly integrated with heat exchange flow channels, a heat insulation structure of the threshold beam assembly integrated with heat exchange flow channels includes an air gap, a vacuum cavity or a low thermal conductivity material layer between the second cooling liquid passage 32 and the exhaust passage 2.

[0046] In the application, the heat insulation structure is not shown in the drawings, the heat insulation structure is arranged between the second cooling liquid passage 32 and the exhaust passage 2, and the heat insulation structure can adopt an air gap, a vacuum cavity or a low thermal conductivity material layer, so that the heat conduction between the second cooling liquid passage 32 and the exhaust passage 2 can be effectively inhibited.

[0047] In some optional embodiments of the first aspect, referring to Figures 1 to 7 As shown in the drawings, the application provides a threshold beam assembly integrated with heat exchange flow channels, a first cooling liquid passage 31 of the threshold beam assembly integrated with heat exchange flow channels is arranged between the second cooling liquid passage 32 and the exhaust passage 2.

[0048] In the application, the first cooling liquid passage 31 separates the second cooling liquid passage 32 and the exhaust passage 2, so that the heat exchange efficiency of the cooling liquid with the engine exhaust in the exhaust passage 2 when the cooling liquid passes through the first cooling liquid passage 31 is greater than the heat exchange efficiency of the cooling liquid with the engine exhaust in the exhaust passage 2 when the cooling liquid passes through the second cooling liquid passage 32.

[0049] In some optional embodiments of the first aspect, referring to Figures 1 to 7As shown, the application provides a threshold beam assembly integrated with a heat exchange runner, the cooling liquid channel 3 of the threshold beam assembly integrated with the heat exchange runner comprises a first cooling liquid channel 31, a second cooling liquid channel 32 and a third cooling liquid channel 33, the first cooling liquid channel 31 is adjacent to the exhaust channel 2, and the second cooling liquid channel 32 is away from the exhaust channel 2; The flow path switching device comprises an end cap joint 4 and a multi-way valve 5 arranged at both ends of the threshold beam body 1. The end cap joint 4 is provided with a first water port and a second water port for being connected in series to the cooling liquid circuit, the first water port is connected to the first cooling liquid channel 31 and the second cooling liquid channel 32, and the second water port is connected to the third cooling liquid channel 33. The multi-way valve 5 is configured to selectively connect the third cooling liquid channel 33 to the first cooling liquid channel 31 or the second cooling liquid channel 32.

[0050] In the application, the third cooling liquid channel 33 can be connected to the first cooling liquid channel 31 or the second cooling liquid channel 32 through the multi-way valve 5. The former is the cooling liquid flowing in the third cooling liquid channel 33 and the first cooling liquid channel 31, and the latter is the cooling liquid flowing in the third cooling liquid channel 33 and the second cooling liquid channel 32. Since the first cooling liquid channel 31 is adjacent to the exhaust channel 2, and the second cooling liquid channel 32 is away from the exhaust channel 2, the heat exchange efficiency of the former cooling liquid and exhaust gas is greater than that of the latter cooling liquid and exhaust gas.

[0051] Exemplarily, the first cooling liquid channel 31 and the second cooling liquid channel 32 can be connected to the first water port at the same time by opening branch flow channels in the end cap joint 4 of the application, and the first water port and the second water port are connected in series to the cooling liquid circuit of the external load. When the multi-way valve 5 connects the third cooling liquid channel 33 to the first cooling liquid channel 31, the cooling liquid in the cooling liquid circuit is driven by the pump body to enter the first cooling liquid channel 31 from the first water port, and then flows in the third cooling liquid channel 33 after passing through the multi-way valve 5, and then returns to the cooling liquid circuit from the second water port; in this case, one end of the second cooling liquid channel 32 is closed by the multi-way valve 5.

[0052] When the multi-way valve 5 connects the third cooling liquid channel 33 to the second cooling liquid channel 32, the cooling liquid in the cooling liquid circuit is driven by the pump body to enter the second cooling liquid channel 32 from the first water port, and then flows in the third cooling liquid channel 33 after passing through the multi-way valve 5, and then returns to the cooling liquid circuit from the second water port; in this case, one end of the first cooling liquid channel 31 is closed by the multi-way valve 5.

[0053] In the first aspect, in some optional embodiments, referring to Figures 1 to 7As shown, the application provides a threshold beam assembly integrated with heat exchange flow channels, the first cooling liquid channel 31 and the exhaust passage 2 extend side by side and are separated by a common partition wall for heat conduction; the second cooling liquid channel 32 and the exhaust passage 2, and the third cooling liquid channel 33 and the exhaust passage 2 are both provided with heat insulation structures for inhibiting heat conduction.

[0054] In the application, the first cooling liquid channel 31, the second cooling liquid channel 32, and the third cooling liquid channel 33 are adjacent to the exhaust passage 2 and are separated by a common partition wall for heat conduction; in addition, the second cooling liquid channel 32 and the exhaust passage 2, and the third cooling liquid channel 33 and the exhaust passage 2 are both provided with heat insulation structures for inhibiting heat conduction, which are not shown in the figure, and the heat insulation structures can be air gaps, vacuum cavities, or low thermal conductivity material layers. The partition wall and the heat insulation structure are provided, so that the heat exchange efficiency of the cooling liquid passing through the first cooling liquid channel 31 and the fourth cooling liquid channel 34 with the engine exhaust gas in the exhaust passage 2 is greater than the heat exchange efficiency of the cooling liquid passing through the second cooling liquid channel 32 and the third cooling liquid channel 33 with the engine exhaust gas in the exhaust passage 2.

[0055] In the first aspect, in some optional embodiments, referring to Figures 1 to 7 As shown, the application provides a threshold beam assembly integrated with heat exchange flow channels, the second cooling liquid channel 32 and the exhaust passage 2 are separated by the first cooling liquid channel 31, and the third cooling liquid channel 33 and the exhaust passage 2 are separated by the fourth cooling liquid channel 34.

[0056] In the application, the first cooling liquid channel 31 separates the second cooling liquid channel 32 and the exhaust passage 2, and the fourth cooling liquid channel 34 separates the third cooling liquid channel 33 and the exhaust passage 2, so that the heat exchange efficiency of the cooling liquid passing through the first cooling liquid channel 31 and the fourth cooling liquid channel 34 with the engine exhaust gas in the exhaust passage 2 is greater than the heat exchange efficiency of the cooling liquid passing through the second cooling liquid channel 32 and the third cooling liquid channel 33 with the engine exhaust gas in the exhaust passage 2.

[0057] In the first aspect, in some optional embodiments, referring to Figures 1 to 7As shown, the application provides a threshold beam assembly integrated with a heat exchange runner, the cooling liquid channel 3 of the threshold beam assembly integrated with the heat exchange runner comprises a first cooling liquid channel 31, a second cooling liquid channel 32, a third cooling liquid channel 33, a fourth cooling liquid channel 34, a fifth cooling liquid channel 35 and a sixth cooling liquid channel 36, the first cooling liquid channel 31, the fourth cooling liquid channel 34 and the fifth cooling liquid channel 35 are adjacent to the exhaust channel 2, and the second cooling liquid channel 32, the third cooling liquid channel 33 and the sixth cooling liquid channel 36 are away from the exhaust channel 2. The flow path selection valve comprises an end cap joint 4 arranged at both ends of the threshold beam body 1 and a multi-way valve 5. The end cap joint 4 is provided with a first water port and a second water port for being connected in series to a cooling liquid circuit, the first water port is communicated with the first cooling liquid channel 31, the third cooling liquid channel 33 and the fifth cooling liquid channel 35, and the second water port is communicated with the second cooling liquid channel 32, the fourth cooling liquid channel 34 and the sixth cooling liquid channel 36. The multi-way valve 5 is provided with ports communicated with the first cooling liquid channel 31, the second cooling liquid channel 32, the third cooling liquid channel 33, the fourth cooling liquid channel 34, the fifth cooling liquid channel 35 and the sixth cooling liquid channel 36 respectively.

[0058] In the application, the threshold beam body 1 is integrally formed with the exhaust channel 2, the first cooling liquid channel 31, the second cooling liquid channel 32, the third cooling liquid channel 33, the fourth cooling liquid channel 34, the fifth cooling liquid channel 35 and the sixth cooling liquid channel 36.

[0059] The first cooling liquid channel 31, the second cooling liquid channel 32, the third cooling liquid channel 33, the fourth cooling liquid channel 34, the fifth cooling liquid channel 35 and the sixth cooling liquid channel 36 are arranged in an array and located on the same side of the exhaust channel 2.

[0060] The first cooling liquid channel 31, the second cooling liquid channel 32, the third cooling liquid channel 33, the fourth cooling liquid channel 34, the fifth cooling liquid channel 35 and the sixth cooling liquid channel 36 are divided into two rows.

[0061] The first cooling liquid channel 31, the fourth cooling liquid channel 34 and the fifth cooling liquid channel 35 are located in the same row and are adjacent to the exhaust channel 2, the first cooling liquid channel 31, the fourth cooling liquid channel 34 and the fifth cooling liquid channel 35 share a plate for separation between the first cooling liquid channel 31, the fourth cooling liquid channel 34, the fifth cooling liquid channel 35 and the exhaust channel 2, the heat transfer path of the cooling liquid in the first cooling liquid channel 31, the fourth cooling liquid channel 34 and the fifth cooling liquid channel 35 and the exhaust gas in the exhaust channel 2 is short, and the heat exchange efficiency is high.

[0062] The second cooling liquid passage 32, the third cooling liquid passage 33 and the sixth cooling liquid passage 36 are located in the same row and are all far away from the exhaust passage 2. Specifically, the second cooling liquid passage 32 and the exhaust passage 2 are separated by the first cooling liquid passage 31, the third cooling liquid passage 33 and the exhaust passage 2 are separated by the fourth cooling liquid passage 34, and the sixth cooling liquid passage 36 and the exhaust passage 2 are separated by the fifth cooling liquid passage 35. The heat transfer path of the cooling liquid in the second cooling liquid passage 32, the third cooling liquid passage 33 and the sixth cooling liquid passage 36 and the exhaust gas in the exhaust passage 2 is long, and the heat exchange efficiency is low.

[0063] Exemplarily, in the end cover joint 4 of the embodiment, the first cooling liquid passage 31, the third cooling liquid passage 33 and the fifth cooling liquid passage 35 can be simultaneously connected to the first water port by opening branch flow channels, and the second cooling liquid passage 32, the fourth cooling liquid passage 34 and the sixth cooling liquid passage 36 can be simultaneously connected to the second water port.

[0064] In use, the first water port and the second water port are connected to the cooling liquid circuit of an external load. The multi-way valve 5 can be a multi-way valve. By controlling the multi-way valve to switch the connection of different cooling liquid passages 3, the heat exchange efficiency of the cooling liquid and the exhaust gas can be divided into three levels. The heat exchange efficiency corresponding to the first level is the highest, the heat exchange efficiency corresponding to the third level is the lowest, and the heat exchange efficiency corresponding to the second level is less than the heat exchange efficiency corresponding to the first level and greater than the heat exchange efficiency corresponding to the third level.

[0065] Specifically, when it is needed to adjust to the heat exchange efficiency corresponding to the first level, the fifth cooling liquid passage 35 is connected to the fourth cooling liquid passage 34 by the multi-way valve 5. The cooling liquid in the cooling liquid circuit is driven by the pump body to enter the fifth cooling liquid passage 35 from the first water port, and then is diverted to the second water port from the fourth cooling liquid passage 34 through the multi-way valve 5 and returns to the cooling liquid circuit. In this case, the first cooling liquid passage 31, the second cooling liquid passage 32, the third cooling liquid passage 33 and the sixth cooling liquid passage 36 are closed by the multi-way valve 5.

[0066] When it is needed to adjust to the heat exchange efficiency corresponding to the second level, the first cooling liquid passage 31 is connected to the second cooling liquid passage 32 by the multi-way valve 5. The cooling liquid in the cooling liquid circuit is driven by the pump body to enter the first cooling liquid passage 31 from the first water port, and then is diverted to the second water port from the second cooling liquid passage 32 through the multi-way valve 5 and returns to the cooling liquid circuit. In this case, the third cooling liquid passage 33, the fourth cooling liquid passage 34, the fifth cooling liquid passage 35 and the sixth cooling liquid passage 36 are closed by the multi-way valve 5.

[0067] When the heat exchange efficiency corresponding to the third level needs to be adjusted, the third cooling liquid passage 33 is communicated with the sixth cooling liquid passage 36 through the multi-way valve 5, the cooling liquid in the cooling liquid circuit is driven by the pump body to enter the third cooling liquid passage 33 from the first water port, and then is diverted to the second water port from the sixth cooling liquid passage 36 through the multi-way valve 5 and returns to the cooling liquid circuit again; in this case, the first cooling liquid passage 31, the second cooling liquid passage 32, the fourth cooling liquid passage 34 and the fifth cooling liquid passage 35 are closed by the multi-way valve 5.

[0068] In the first aspect, in some optional embodiments, referring to Figures 1 to 7 The multi-way valve 5 of the integrated heat exchange flow channel threshold beam assembly is configured to have a first working state, a second working state and a third working state. In the first working state, the multi-way valve 5 establishes the cooling liquid communication between the fourth cooling liquid passage 34 and the fifth cooling liquid passage 35, interrupts the cooling liquid communication between the first cooling liquid passage 31 and the second cooling liquid passage 32, and interrupts the cooling liquid communication between the third cooling liquid passage 33 and the sixth cooling liquid passage 36. In the second working state, the multi-way valve 5 establishes the cooling liquid communication between the first cooling liquid passage 31 and the second cooling liquid passage 32, interrupts the cooling liquid communication between the third cooling liquid passage 33 and the sixth cooling liquid passage 36, and interrupts the cooling liquid communication between the fifth cooling liquid passage 35 and the fourth cooling liquid passage 34. In the third working state, the multi-way valve 5 establishes the cooling liquid communication between the third cooling liquid passage 33 and the sixth cooling liquid passage 36, interrupts the cooling liquid communication between the first cooling liquid passage 31 and the second cooling liquid passage 32, and interrupts the cooling liquid communication between the fifth cooling liquid passage 35 and the fourth cooling liquid passage 34.

[0069] In the embodiments of the present application, the multi-way valve 5 has the first working state, the second working state and the third working state, the first working state corresponds to the first level, the second working state corresponds to the second level, and the third working state corresponds to the third level.

[0070] Specifically, when the heat exchange efficiency corresponding to the first level needs to be adjusted, the multi-way valve 5 is switched to the first working state, the fifth cooling liquid passage 35 is communicated with the fourth cooling liquid passage 34, the cooling liquid communication between the first cooling liquid passage 31 and the second cooling liquid passage 32 is interrupted, and the cooling liquid communication between the third cooling liquid passage 33 and the sixth cooling liquid passage 36 is interrupted; the cooling liquid in the cooling liquid circuit is driven by the pump body to enter the fifth cooling liquid passage 35 from the first water port, and then is diverted to the second water port from the fourth cooling liquid passage 34 through the multi-way valve 5 and returns to the cooling liquid circuit again.

[0071] When the heat exchange efficiency corresponding to the second level needs to be adjusted, the multi-way valve 5 is switched to the second working state, so that the first cooling liquid passage 31 is communicated with the second cooling liquid passage 32, the communication of the cooling liquid between the third cooling liquid passage 33 and the sixth cooling liquid passage 36 is interrupted, and the communication of the cooling liquid between the fifth cooling liquid passage 35 and the fourth cooling liquid passage 34 is interrupted; the cooling liquid in the cooling liquid circuit is driven by the pump body to enter the first cooling liquid passage 31 from the first water port, bypasses the multi-way valve 5 from the second cooling liquid passage 32 to the second water port, and returns to the cooling liquid circuit.

[0072] When the heat exchange efficiency corresponding to the third level needs to be adjusted, the multi-way valve 5 is switched to the third working state, so that the third cooling liquid passage 33 is communicated with the sixth cooling liquid passage 36, the communication of the cooling liquid between the first cooling liquid passage 31 and the second cooling liquid passage 32 is interrupted, and the communication of the cooling liquid between the fifth cooling liquid passage 35 and the fourth cooling liquid passage 34 is interrupted; the cooling liquid in the cooling liquid circuit is driven by the pump body to enter the third cooling liquid passage 33 from the first water port, bypasses the multi-way valve 5 from the sixth cooling liquid passage 36 to the second water port, and returns to the cooling liquid circuit.

[0073] In some optional embodiments of the first aspect, referring to Figures 1 to 7 The first cooling liquid passage 31, the second cooling liquid passage 32, the third cooling liquid passage 33 and the exhaust passage 2 of the integrated heat exchange flow channel threshold beam assembly are all extended side by side and separated by a common partition wall for heat conduction; the second cooling liquid passage 32, the third cooling liquid passage 33 and the exhaust passage 2, and the sixth cooling liquid passage 36 and the exhaust passage 2 are all provided with heat insulation structures for inhibiting heat conduction.

[0074] In the embodiments of the present application, the first cooling liquid passage 31, the second cooling liquid passage 32, the third cooling liquid passage 33 are all adjacent to the exhaust passage 2 and separated by a common partition wall for heat conduction; in addition, the second cooling liquid passage 32, the third cooling liquid passage 33 and the exhaust passage 2, and the sixth cooling liquid passage 36 and the exhaust passage 2 are all provided with heat insulation structures for inhibiting heat conduction, which are not shown in the figure, and the heat insulation structures can be air gaps, vacuum cavities or low thermal conductivity material layers; The partition wall and the heat insulation structure are provided, so that the heat exchange efficiency of the cooling liquid with the engine exhaust gas in the exhaust passage 2 when passing through the first cooling liquid passage 31, the fourth cooling liquid passage 34 and the fifth cooling liquid passage 35 is greater than the heat exchange efficiency of the cooling liquid with the engine exhaust gas in the exhaust passage 2 when passing through the second cooling liquid passage 32, the third cooling liquid passage 33 and the sixth cooling liquid passage 36.

[0075] In some optional embodiments of the first aspect, referring to Figures 1 to 7 As shown in the figure, the application provides a threshold beam assembly integrated with heat exchange flow channels, a first cooling liquid channel 31 is separated between the second cooling liquid channel 32 and the exhaust passage 2, a fourth cooling liquid channel 34 is separated between the third cooling liquid channel 33 and the exhaust passage 2, and a fifth cooling liquid channel 35 is separated between the sixth cooling liquid channel 36 and the exhaust passage 2.

[0076] In the application, the first cooling liquid channel 31 separates the second cooling liquid channel 32 and the exhaust passage 2, the fourth cooling liquid channel 34 separates the third cooling liquid channel 33 and the exhaust passage 2, and the fifth cooling liquid channel 35 separates the sixth cooling liquid channel 36 and the exhaust passage 2; so that the heat exchange efficiency of the cooling liquid with the engine exhaust in the exhaust passage 2 when passing through the first cooling liquid channel 31, the fourth cooling liquid channel 34 and the fifth cooling liquid channel 35 is greater than the heat exchange efficiency of the cooling liquid with the engine exhaust in the exhaust passage 2 when passing through the second cooling liquid channel 32, the third cooling liquid channel 33 and the sixth cooling liquid channel 36.

[0077] In some optional embodiments of the first aspect, referring to Figures 1 to 7 As shown in the figure, the application provides a threshold beam assembly integrated with heat exchange flow channels, a multi-way valve 5 of the threshold beam assembly integrated with heat exchange flow channels includes a valve shell 51, a plurality of interfaces 52 provided on the valve shell 51, a valve cavity in the valve shell 51 communicating with the plurality of interfaces 52, and a valve core 53 rotatably connected in the valve cavity; a plurality of grooves with different phases are arranged on the side wall of the valve core 53 in the circumferential direction. The multi-way valve 5 further includes a driving member for driving the valve core 53 to rotate to different rotation angles; the valve core 53 switches different rotation angles to make the interfaces 52 at different positions communicate with each other through the corresponding grooves.

[0078] In the application, the multi-way valve 5 is a rotary multi-way valve, the valve shell 51 of the multi-way valve 5 is integrally formed with a valve cavity (not shown in the figure) and a plurality of interfaces 52 communicating with the valve cavity, the valve core 53 is rotatably installed in the valve cavity, a plurality of grooves with different phases are arranged on the side wall of the valve core 53 in the circumferential direction, the valve core 53 can be driven to switch different rotation angles by the driving member (not shown in the figure), different positions of the interfaces 52 are connected by the grooves at different positions, and the interfaces 52 correspond to the cooling liquid channels 3, so as to realize the connection of the cooling liquid channels 3 at different positions.

[0079] Exemplarily, the valve housing 51 of the embodiment is provided with six interfaces 52 corresponding to the first cooling liquid channel 31, the second cooling liquid channel 32, the third cooling liquid channel 33, the fourth cooling liquid channel 34, the fifth cooling liquid channel 35 and the sixth cooling liquid channel 36 respectively. The valve core 53 is provided with three phase-different grooves correspondingly, the driving member is a stepping motor which can drive the valve core 53 to switch different rotation angles, and by switching 0°, 120° and 240°, the grooves in different positions can be used to connect the cooling liquid channels 3 in two positions; Exemplarily, the grooves include a first groove, a second groove and a third groove. When the valve core 53 is switched to the 0° initial position, the first groove connects the fifth cooling liquid channel 35 and the fourth cooling liquid channel 34; when the valve core 53 is switched to the 120° position by clockwise rotation, the second groove connects the first cooling liquid channel 31 and the second cooling liquid channel 32; when the valve core 53 is switched to the 240° position by clockwise rotation, the third groove connects the third cooling liquid channel 33 and the sixth cooling liquid channel 36.

[0080] It should be noted that the function of the groove in the present application is to connect the cooling liquid channels 3 in different positions, so it can be understood that those skilled in the art can adaptively adjust the size, shape and position of the groove according to the use scene and test conditions.

[0081] In the first aspect, in some optional embodiments, referring to Figures 1 to 7 As shown in the figure, the embodiment of the present application provides a threshold beam assembly integrated with a heat exchange flow channel, both ends of a threshold beam body 1 of the threshold beam assembly integrated with a heat exchange flow channel are connected with exhaust pipe adapters 6 communicating with end portions of an exhaust passage 2, and the exhaust pipe adapters 6 include flexible pipe sections 61 which are used to absorb and / or attenuate vibration energy transmitted by the exhaust pipe.

[0082] In the embodiment of the present application, the exhaust passage 2 can be connected into an exhaust pipe line through the exhaust pipe adapters 6 at both ends. The flexible pipe sections 61 are integrated on the exhaust pipe adapters 6, and when the exhaust pipe adapters 6 are connected with the threshold beam body 1 and the exhaust pipe, the flexible pipe sections 61 can absorb or attenuate dynamic vibration energy generated by the exhaust pipe. This makes the originally required dynamic gap be changed to static fixed connection, cancels the structure space reserved for the vibration of the threshold beam body 1, further improves the integration degree, increases the capacity of the battery pack 11, and is compatible with the pure electric platform. Exemplarily, the flexible pipe sections 61 can adopt metal bellows.

[0083] In the first aspect, in some optional embodiments, referring to Figures 1 to 7As shown, the embodiment of the present application provides a threshold beam assembly integrated with heat exchange flow channels, the exhaust passage 2 and the cooling liquid passage 3 of the threshold beam assembly integrated with heat exchange flow channels extend along the length direction of the threshold beam body 1, and the exhaust passage 2 is located on the lower side of the cooling liquid passage 3, and the left and right sides and the lower side of the exhaust passage 2 are provided with a heat insulation layer 7.

[0084] In the embodiment of the present application, the exhaust passage 2 and the cooling liquid passage 3 extend along the length direction of the threshold beam body 1, and the long and circuitous characteristics of the inner cavity of the profile of the threshold beam body 1 are utilized to form a strip-shaped heat exchange path to provide sufficient heat exchange area; the exhaust passage 2 is located on the lower side of the cooling liquid passage 3 to avoid high temperature from the side and facilitate connection with the lower exhaust pipe; the left and right sides and the lower side of the exhaust passage 2 are provided with a thin cavity to form a heat insulation layer 7, and the thin cavity can be filled with aerogel to effectively block heat transfer.

[0085] In the first aspect, in some optional embodiments, referring to Figures 1 to 7 As shown, the embodiment of the present application provides a threshold beam assembly integrated with heat exchange flow channels, the exhaust passage 2 and the cooling liquid passage 3 of the threshold beam assembly integrated with heat exchange flow channels are integrally formed on the threshold beam body 1, and the exhaust passage 2 and the cooling liquid passage 3 extend along the length direction of the threshold beam body 1; a plurality of cooling liquid passages 3 are located on the same side of the exhaust passage 2, a strip-shaped block 8 is fixed on the side of the exhaust passage 2 away from the cooling liquid passage 3, and a threaded blind hole extending into the strip-shaped block 8 is arranged on the surface of the threshold beam body 1.

[0086] In the embodiment of the present application, the strip-shaped block 8 and the threshold beam body 1 are integrated and manufactured by an integral forming process, which can significantly improve the overall strength and reliability of the structure; the threaded blind hole opened on the surface of the threshold beam body 1 extends into the inside of the strip-shaped block 8, and the battery pack 11 can be quickly mounted and stably fixed through bolts, and the battery pack 11 can be directly integrated below the threshold beam body 1, which effectively optimizes the space layout of the vehicle body bottom, avoids additional installation of brackets, and further improves the vehicle platform integration and the capacity utilization rate of the battery pack 11.

[0087] Referring to Figures 1 to 7 As shown, the second aspect of the embodiment of the present application provides a vehicle, which comprises: A side wall outer plate 9, one side of the side wall outer plate 9 is provided with a threshold inner plate 10, and a cavity is formed between the threshold inner plate 10 and the side wall outer plate 9; The threshold beam assembly integrated with heat exchange flow channels of any one of the above embodiments is installed in the cavity.

[0088] The vehicle of the embodiment of the present application is provided with the rocker beam assembly with integrated heat exchange flow channel of any one of the above embodiments, which is located in the cavity formed between the inner rocker panel 10 and the outer side panel 9, and can be connected to the cooling system of the battery pack 11 or the cabin warm air circuit through the first water port and the second water port of the end cover joint 4, so as to realize efficient recovery of waste heat and dynamic distribution of heat exchange efficiency.

[0089] For example, the rocker beam assemblies are symmetrically arranged, and the rocker beam assemblies can be connected to the cooling system of the battery pack 11. When the vehicle is in a low-temperature working condition, the rocker beam assembly connected to the battery pack 11 can automatically select the cooling liquid channel 3 adjacent to the exhaust passage 2 to improve the heat exchange efficiency and quickly heat the battery pack 11. When the battery pack 11 needs to be kept at a constant temperature, the cooling liquid channel 3 far away from the exhaust passage 2 can be selected to reduce the heat exchange efficiency and stabilize the temperature of the battery pack 11. Therefore, the flexibility of the whole vehicle thermal management and the energy utilization efficiency are significantly improved, and additional heat exchangers are avoided, and the layout of the vehicle body space is further optimized.

[0090] In the second aspect, in some optional embodiments, referring to Figures 1 to 7 Figures 1 to 7 As shown in the figure, the vehicle of the embodiment of the present application further includes a battery pack 11, the end of the battery pack 11 is fixedly connected with the rocker beam assembly through fasteners, and the fasteners penetrate the inner rocker panel 10; and the cooling liquid circuit of the battery pack 11 is connected in series with the cooling liquid channel 3 in the rocker beam body 1 through the flow path switching device.

[0091] In the embodiment of the present application, the end of the battery pack 11 is fixedly connected with the strip-shaped block 8 on the rocker beam body 1 through fasteners, and the fasteners penetrate the inner rocker panel 10 to form a rigid integrated connection structure, without the need for additional installation supports or supporting members, thereby effectively avoiding the problem of layout redundancy at the bottom caused by the occupation of space by independent supports in the conventional battery pack suspension scheme.

[0092] The cavity space below the rocker beam body 1 can be maximally utilized to improve the capacity integration of the battery pack 11, and the fasteners and the inner rocker panel 10 can be cooperatively stressed to significantly enhance the rigidity of the bottom structure of the vehicle body, reduce vibration transmission, and simplify the assembly process, thereby improving the installation efficiency of the battery pack 11, providing a stable mechanical foundation for the cooperative control of the vehicle thermal management system (such as waste heat recovery) and the battery pack thermal management, and further strengthening the compatibility of the whole vehicle platform and the pure electric architecture.

[0093] It should be noted that the cavity structure formed inside the profile in the embodiment of the present application integrates multiple medium channels through the front and rear while maintaining the structural strength and lightweight, and is embedded in the rocker beam as a whole. This design releases the space below the battery pack which originally needs to avoid exhaust heat damage and motion envelope, significantly improves the battery Y-direction (vehicle width direction) size, realizes platform sharing of battery for hybrid vehicles and pure electric vehicles, and effectively extends the pure electric cruising range of hybrid vehicles.

[0094] Leveraging the extremely long and flexible internal cavity of the profile, a "strip-type heat exchange" structure is formed, providing ample heat exchange area between media and efficiently recovering heat from exhaust gases. When waste heat is not required, a multi-way valve can dynamically cut off the heat exchange water path, preventing energy waste. After the profile is installed, the exhaust passage is located under the vehicle, and in conjunction with a three-sided aerogel insulation cavity (filled with aerogel, the thickness and volume of which can be adapted to the vehicle structure), it effectively blocks the thermal hazards of high-temperature exhaust gases to the surrounding environment.

[0095] In addition, the number of water passage chambers and multi-way valve channels can be flexibly adjusted according to the requirements of profile manufacturing process, impact strength and other factors. This can break through the limitation of traditional plate heat exchangers that are limited to cross-heat exchange of only two media, and support the coordinated heat exchange of three or more media (such as exhaust gas, high and low temperature coolant, refrigerant) to achieve a high degree of customizability and high efficiency matching of the thermal management system.

[0096] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0097] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0098] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A sill beam assembly with integrated heat exchange channels, characterized in that, include: The sill beam body (1) is provided with an exhaust channel (2) and a coolant channel (3). The coolant channel (3) includes a first coolant channel (31) adjacent to the exhaust channel (2) and a second coolant channel (32) away from the exhaust channel (2). A flow path switching device is provided at the end of the sill beam body (1). The flow path switching device is configured to switchably connect the first coolant channel (31) or the second coolant channel (32) to the coolant circuit so as to adjust the heat exchange efficiency between the gas and liquid in the sill beam body (1) by selecting the channel position through which the coolant flows. The coolant circuit is configured to exchange heat with the thermal management components of the vehicle.

2. The sill beam assembly with integrated heat exchange channel as described in claim 1, characterized in that: The flow path switching device includes two flow path selection valves located at both ends of the sill beam body (1); The flow path selection valve is provided with a first interface for connecting the coolant circuit, and a second interface and a third interface for connecting the first coolant channel (31) and the second coolant channel (32) respectively. The flow path selection valve is configured to switch between connecting the first interface and either the second or third interface.

3. The sill beam assembly of the integrated heat exchange channel as described in claim 1 or 2, characterized in that: The first coolant passage (31) extends side by side with the exhaust passage (2) and is separated by a common partition wall for heat conduction. A heat insulation structure for inhibiting heat conduction is provided between the second coolant passage (32) and the exhaust passage (2).

4. The sill beam assembly with integrated heat exchange channel as described in claim 3, characterized in that: The thermal insulation structure includes an air gap, a vacuum cavity, or a layer of low thermal conductivity material located between the second coolant channel (32) and the exhaust channel (2).

5. The sill beam assembly with integrated heat exchange channel as described in claim 1 or 2, characterized in that: The first coolant passage (31) separates the second coolant passage (32) from the exhaust passage (2).

6. The sill beam assembly with integrated heat exchange channel as described in claim 1, characterized in that: The coolant passage (3) also includes a third coolant passage (33); The flow path switching device includes end cap joints (4) and multi-way valves (5) located at both ends of the sill beam body (1). The end cap connector (4) is provided with a first water inlet and a second water inlet for connecting in series to the coolant circuit. The first water inlet is connected to the first coolant channel (31) and the second coolant channel (32), and the second water inlet is connected to the third coolant channel (33). The multi-way valve (5) is configured to selectively connect the third coolant passage (33) to the first coolant passage (31) or the second coolant passage (32).

7. The sill beam assembly with integrated heat exchange channel as described in claim 6, characterized in that: The first coolant passage (31) extends side by side with the exhaust passage (2) and is separated by a common partition wall for heat conduction; the second coolant passage (32) and the exhaust passage (2), as well as the third coolant passage (33) and the exhaust passage (2), are all provided with heat insulation structures to suppress heat conduction.

8. The sill beam assembly with integrated heat exchange channel as described in claim 6, characterized in that: The second coolant passage (32) is separated from the exhaust passage (2) by the first coolant passage (31), and the third coolant passage (33) is separated from the exhaust passage (2) by the fourth coolant passage (34).

9. The sill beam assembly with integrated heat exchange channel as described in claim 1, characterized in that: The coolant passage (3) further includes a third coolant passage (33), a fourth coolant passage (34), a fifth coolant passage (35), and a sixth coolant passage (36). The first coolant passage (31), the fourth coolant passage (34), and the fifth coolant passage (35) are all adjacent to the exhaust passage (2), while the second coolant passage (32), the third coolant passage (33), and the sixth coolant passage (36) are all far away from the exhaust passage (2). The flow path selection valve includes end cap joints (4) and multi-way valves (5) located at both ends of the sill beam body (1). The end cap connector (4) is provided with a first water inlet and a second water inlet for connecting to the coolant circuit in series. The first water inlet is connected to the first coolant channel (31), the third coolant channel (33) and the fifth coolant channel (35), and the second water inlet is connected to the second coolant channel (32), the fourth coolant channel (34) and the sixth coolant channel (36). The multi-way valve (5) is provided with ports that are respectively connected to the first coolant channel (31), the second coolant channel (32), the third coolant channel (33), the fourth coolant channel (34), the fifth coolant channel (35) and the sixth coolant channel (36).

10. The sill beam assembly with integrated heat exchange channels as described in claim 9, characterized in that: The multi-way valve (5) is configured to have a first working state, a second working state and a third working state; In the first working state, the multi-way valve (5) establishes coolant communication between the fourth coolant channel (34) and the fifth coolant channel (35), and interrupts coolant communication between the first coolant channel (31) and the second coolant channel (32), as well as interrupts coolant communication between the third coolant channel (33) and the sixth coolant channel (36); In the second working state, the multi-way valve (5) establishes coolant communication between the first coolant passage (31) and the second coolant passage (32), and interrupts coolant communication between the third coolant passage (33) and the sixth coolant passage (36), as well as interrupts coolant communication between the fifth coolant passage (35) and the fourth coolant passage (34); In the third working state, the multi-way valve (5) establishes coolant communication between the third coolant passage (33) and the sixth coolant passage (36), and interrupts coolant communication between the first coolant passage (31) and the second coolant passage (32), as well as interrupts coolant communication between the fifth coolant passage (35) and the fourth coolant passage (34).

11. The sill beam assembly with integrated heat exchange channel as described in claim 9, characterized in that: The first coolant passage (31), the second coolant passage (32), the third coolant passage (33) and the exhaust passage (2) all extend side by side and are separated by a common partition wall for heat conduction; the second coolant passage (32) and the exhaust passage (2), the third coolant passage (33) and the exhaust passage (2), and the sixth coolant passage (36) and the exhaust passage (2) are all provided with heat insulation structures to suppress heat conduction.

12. The sill beam assembly with integrated heat exchange channel as described in claim 9, characterized in that: The second coolant passage (32) is separated from the exhaust passage (2) by the first coolant passage (31), the third coolant passage (33) is separated from the exhaust passage (2) by the fourth coolant passage (34), and the sixth coolant passage (36) is separated from the exhaust passage (2) by the fifth coolant passage (35).

13. The sill beam assembly with integrated heat exchange channels as described in claim 9 or 10, characterized in that: The multi-way valve (5) includes a valve housing (51), multiple ports (52) provided on the valve housing (51), a valve cavity inside the valve housing (51) communicating with the multiple ports (52), and a valve core (53) rotatably connected to the valve cavity; the valve core (53) has multiple grooves with different phases provided on its sidewall along the circumferential direction. The multi-way valve (5) also includes a drive element for driving the valve core (53) to rotate to different rotation angles; the valve core (53) switches different rotation angles so that the interfaces (52) at different positions are connected to each other through corresponding grooves.

14. The sill beam assembly with integrated heat exchange channel as described in claim 1, characterized in that: The two ends of the threshold beam body (1) are connected to exhaust pipe adapters (6) that connect to the ends of the exhaust channel (2). The exhaust pipe adapters (6) include flexible pipe sections (61) for absorbing and / or attenuating the vibration energy transmitted by the exhaust pipe.

15. The sill beam assembly with integrated heat exchange channel as described in claim 1, characterized in that: The exhaust channel (2) and the coolant channel (3) both extend along the length of the sill beam body (1), and the exhaust channel (2) is located on the lower side of the coolant channel (3). The left and right sides and the lower side of the exhaust channel (2) are provided with heat insulation layers (7).

16. The sill beam assembly with integrated heat exchange channel as described in claim 1, characterized in that: The exhaust channel (2) and the coolant channel (3) are integrally formed on the sill beam body (1), and both the exhaust channel (2) and the coolant channel (3) extend along the length direction of the sill beam body (1).

17. The sill beam assembly with integrated heat exchange channel as described in claim 1, characterized in that: Multiple coolant channels (3) are located on the same side of the exhaust channel (2). A strip block (8) is fixed on the side of the exhaust channel (2) away from the coolant channel (3). A threaded blind hole extending into the strip block (8) is provided on the surface of the sill beam body (1).

18. A vehicle, characterized in that, include: A side panel (9) is provided with a sill inner panel (10) installed on one side of the side panel (9), and a cavity is formed between the sill inner panel (10) and the side panel (9). The sill beam assembly of the integrated heat exchange channel according to any one of claims 1 to 17, wherein the sill beam assembly is installed within the cavity.

19. The vehicle as claimed in claim 18, characterized in that: It also includes a battery pack (11), the end of which is fixedly connected to the sill beam assembly by fasteners that penetrate the inner sill plate (10).

20. The vehicle as claimed in claim 19, characterized in that: The coolant circuit of the battery pack (11) is connected in series with the coolant channel (3) inside the sill beam body (1) through a flow path switching device.

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