Cooling system and vehicle

Abstract

The invention provides a heat dissipation system and a vehicle. The heat dissipation system comprises a first driving structure; the brake heat dissipation assembly comprises a first conveying pump and a first liquid conveying pipeline, the first driving structure is in driving connection with the first conveying pump, and the liquid inlet end of the first conveying pump and the liquid outlet end of the first liquid conveying pipeline are both configured to communicate with a first heat dissipation box containing a first heat dissipation medium; the liquid outlet end of the first conveying pump is communicated with the liquid inlet end of the first liquid conveying pipeline; the electric heat dissipation assembly comprises a second driving structure, a second conveying pump and a second liquid conveying pipeline, the second driving structure is driven by any one of the first driving structure and the first conveying pump, and the second driving structure is in driving connection with the second conveying pump; the liquid inlet end and the liquid outlet end of the second liquid conveying pipeline are both configured to communicate with a second heat dissipation box containing a second heat dissipation medium. According to the technical scheme, the problem that a heat dissipation system in the prior art cannot conduct heat dissipation on an electric drive system and a wet brake system at the same time can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a heat dissipation system and a vehicle. Background Art

[0002] In underground working environments, explosion-proof electric special vehicles have become an indispensable tool for mining, especially large-tonnage explosion-proof electric shovel trucks, which are favored for their excellent performance in high-intensity operations such as handling and mining. However, in the face of increasingly complex working conditions and the continued growth of vehicle tonnage, the design and performance of the vehicle cooling system have become key factors affecting operating efficiency and safety. Existing explosion-proof electric special vehicle cooling systems usually only have electric drive cooling systems, and their working principle is to use a motor water pump to extract coolant from the cooling water tank, and perform heat exchange through heat-generating electric drive components such as motors and motor controllers, and then release the heat to the external environment through the radiator. The coolant then returns to the cooling water tank to complete the circulation cooling process.

[0003] However, although the cooling system of the prior art has a significant effect on the temperature control of the electric drive system, it ignores the cooling requirements of the wet brake system. For a large-tonnage underground explosion-proof electric shovel truck, if it is only equipped with an electric drive cooling system, when the vehicle goes downhill, after braking, a large amount of heat will be generated by the friction between the brake pad and the brake. The heat is in the brake cooling cavity. If the heat cannot be dissipated in time, it will cause aging of the sealing components and deformation of the structural parts, resulting in oil leakage in the brake. If the above phenomenon is not handled after it occurs, it may cause the entire brake to fail later, the vehicle cannot brake normally, and the driver's personal safety is threatened. Summary of the invention

[0004] The main purpose of the present invention is to provide a heat dissipation system and a vehicle, which can solve the problem that the heat dissipation system in the prior art cannot dissipate heat for the electric drive system and the wet brake system at the same time.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present invention, a heat dissipation system is provided, which includes: a first drive structure; a brake heat dissipation component, including a first delivery pump and a first infusion pipeline, the first drive structure is drivingly connected to the first delivery pump, the liquid inlet end of the first delivery pump and the liquid outlet end of the first infusion pipeline are both constructed to be connected to a first heat dissipation box containing a first heat dissipation medium, the liquid outlet end of the first delivery pump is connected to the liquid inlet end of the first infusion pipeline, and the first heat dissipation medium in the first infusion pipeline is constructed to flow through the brake structure to be cooled; an electric drive heat dissipation component, including a second drive structure, a second delivery pump and a second infusion pipeline, the second drive structure is driven by either the first drive structure or the first delivery pump, and the second drive structure is drivingly connected to the second delivery pump, the second delivery pump is installed on the second infusion pipeline, the liquid inlet end and the liquid outlet end of the second infusion pipeline are both constructed to be connected to a second heat dissipation box containing a second heat dissipation medium, and the second heat dissipation medium in the second infusion pipeline is constructed to flow through the electric drive structure to be cooled.

[0006] Furthermore, the brake cooling assembly also includes a first return pipeline, one end of which can be communicated with the liquid outlet of the first delivery pump, and the other end of the first return pipeline is configured to be communicated with the first cooling tank.

[0007] Furthermore, there are two first infusion pipelines, and the brake cooling assembly also includes a third infusion pipeline. The outlet ends of the two first infusion pipelines are selectively connected to the inlet end of the third infusion pipeline, and the outlet end of the third infusion pipeline is constructed to be connected to the first cooling box.

[0008] Furthermore, the second driving structure includes a third delivery pump and a first hydraulic motor, the third delivery pump is drivingly connected to the first delivery pump, the third delivery pump is drivingly matched with the first hydraulic motor, and the first hydraulic motor is drivingly connected to the second delivery pump.

[0009] Furthermore, the electric drive heat dissipation component also includes a drive pipeline, one end of the drive pipeline is connected to the liquid outlet of the third delivery pump, and the other end of the drive pipeline is connected to the first hydraulic motor.

[0010] Furthermore, the electric drive heat dissipation component also includes an auxiliary heat dissipation structure and a fourth infusion pipeline. The auxiliary heat dissipation structure includes a cooling fan and a second hydraulic motor driven by the cooling fan. The first end of the fourth infusion pipeline is connected to the liquid outlet of the first hydraulic motor. The second end of the fourth infusion pipeline can be selectively connected to the first heat dissipation box via the second hydraulic motor, or directly connected to the first heat dissipation box.

[0011] Furthermore, a reversing valve is provided on the fourth infusion pipeline. When the reversing valve is in the first position, the first heat dissipation medium in the fourth infusion pipeline flows directly back to the first heat dissipation box. When the reversing valve is in the second position, the first heat dissipation medium in the fourth infusion pipeline flows through the second hydraulic motor and then flows back to the first heat dissipation box.

[0012] Furthermore, the electric drive heat dissipation assembly also includes a confluence pipeline and a fifth infusion pipeline, the auxiliary heat dissipation structure also includes a water tank, the air outlet end of the cooling fan faces the water tank, the water tank includes a water inlet and a water outlet connected to the inner cavity of the water tank, the first end of the confluence pipeline is connected to the liquid outlet end of the second infusion pipeline, the second end of the confluence pipeline is connected to the water inlet, one end of the fifth infusion pipeline is connected to the water outlet, and the other end of the fifth infusion pipeline is connected to the second heat dissipation tank.

[0013] Furthermore, the second drive structure includes a third delivery pump and a first hydraulic motor, and the electric drive heat dissipation assembly also includes a second return pipeline, one end of the second return pipeline is connected to the liquid outlet end of the third delivery pump, and the other end of the second return pipeline is connected to the first return pipeline, and an overflow valve is arranged on the second return pipeline.

[0014] According to another aspect of the present invention, a vehicle is provided, comprising: the heat dissipation system as described above.

[0015] The technical solution of the present invention is applied, and a first drive structure, a brake heat dissipation component, and an electric drive heat dissipation component are provided. When heat is dissipated, under the drive of the first drive structure, the first delivery pump works to deliver the first heat dissipation medium in the first heat dissipation box to the first infusion pipeline. The first heat dissipation medium in the first infusion pipeline flows through the brake structure to be dissipated, and heat can be dissipated for the brake structure to be dissipated (such as a brake). The second drive structure, under the drive of the first drive structure or the first delivery pump, further drives the second delivery pump to deliver the second heat dissipation medium in the second heat dissipation box to the second infusion pipeline. Since the second heat dissipation medium in the second infusion pipeline is constructed to flow through the electric drive structure to be dissipated, heat can be dissipated for the electric drive structure to be dissipated. From the above, it can be seen that the present application has two independent heat dissipation medium circulation paths, wherein the first heat dissipation medium is used to dissipate heat of the brake structure to be dissipated, ensuring that the heat generated by the brake structure to be dissipated during long-term or high-intensity work can be effectively taken away, avoiding the problems of aging of sealing elements and deformation of structural parts, and ensuring the stability and safety of the brake structure to be dissipated (such as brakes); the second heat dissipation medium is used to dissipate heat of the electric drive structure to be dissipated, ensuring the temperature control of the electric drive structure to be dissipated during high-load operation, and avoiding overheating and performance degradation of the electric drive structure to be dissipated due to insufficient heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 A schematic structural diagram of a heat dissipation system according to an embodiment of the present invention is shown.

[0018] The above drawings include the following reference numerals:

[0019] 10. First drive structure; 20. Brake heat dissipation assembly; 21. First delivery pump; 22. First infusion pipeline; 23. First return pipeline; 24. Third infusion pipeline; 25. Drive pipeline; 30. First heat dissipation box; 40. Second heat dissipation box; 50. Brake structure to be cooled; 60. Electric drive heat dissipation assembly; 611. Third delivery pump; 612. First hydraulic motor; 62. Second delivery pump; 63. Second infusion pipeline; 64. Converging pipeline; 65. The fifth infusion line; 66. The second return line; 70. The electric drive structure to be cooled; 80. The auxiliary cooling structure; 81. The cooling fan; 90. The fourth infusion line; 100. The three-way valve; 101. The one-way valve; 102. The first test connector; 103. The second test connector; 104. The throttle valve; 105. The reversing valve; 106. The overflow valve; 107. The sixth infusion line; 108. The seventh infusion line; 109. The eighth infusion line. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] like Figure 1 As shown, the present invention provides a heat dissipation system, which includes: a first driving structure 10; a brake heat dissipation component 20, including a first delivery pump 21 and a first infusion pipeline 22, the first driving structure 10 is drivingly connected to the first delivery pump 21, the liquid inlet end of the first delivery pump 21 and the liquid outlet end of the first infusion pipeline 22 are both constructed to be connected to a first heat dissipation box 30 containing a first heat dissipation medium, the liquid outlet end of the first delivery pump 21 is connected to the liquid inlet end of the first infusion pipeline 22, and the first heat dissipation medium in the first infusion pipeline 22 is constructed to flow through the brake structure to be cooled. Structure 50; the electric drive heat dissipation component 60 includes a second drive structure, a second delivery pump 62 and a second infusion pipeline 63, the second drive structure is driven by either the first drive structure 10 or the first delivery pump 21, and the second drive structure drives the second delivery pump 62, the second delivery pump 62 is installed on the second infusion pipeline 63, the liquid inlet end and the liquid outlet end of the second infusion pipeline 63 are both constructed to be connected to the second heat dissipation box 40 containing the second heat dissipation medium, and the second heat dissipation medium in the second infusion pipeline 63 is constructed to flow through the electric drive structure 70 to be cooled.

[0022] In this embodiment, the present application integrates the brake heat dissipation component 20 and the electric drive heat dissipation component 60. When heat is dissipated, under the drive of the first drive structure 10, the first delivery pump 21 works to deliver the first heat dissipation medium in the first heat dissipation box 30 to the first infusion pipeline 22. The first heat dissipation medium in the first infusion pipeline 22 flows through the brake structure 50 to be dissipated, and the brake structure 50 (such as a brake) to be dissipated can be dissipated. The second drive structure, under the drive of the first drive structure 10 or the first delivery pump 21, further drives the second delivery pump 62 to deliver the second heat dissipation medium in the second heat dissipation box 40 to the second infusion pipeline 63. Since the second heat dissipation medium in the second infusion pipeline 63 is configured to flow through the electric drive structure 70 to be dissipated, the electric drive structure 70 (such as a motor, a pump motor, a motor controller, a pump motor controller, etc.) to be dissipated can be dissipated.

[0023] As can be seen from the above, the present application has two independent heat dissipation medium circulation paths, wherein the first heat dissipation medium is used to dissipate heat from the brake structure 50 to be dissipated, ensuring that the heat generated by the brake structure 50 to be dissipated (such as a brake) during long-term or high-intensity work can be effectively taken away, avoiding the problems of aging of sealing elements and deformation of structural parts, and ensuring the stability and safety of the brake structure 50 to be dissipated (such as a brake); the second heat dissipation medium is used to dissipate heat from the electric drive structure 70 to be dissipated, ensuring the temperature control of the electric drive structure 70 to be dissipated (such as a motor) during high-load operation, and avoiding overheating and performance degradation of the electric drive structure to be dissipated due to insufficient heat dissipation.

[0024] In one embodiment, the first driving structure 10 is a pump motor, the first delivery pump 21 is a series gear pump, and the second delivery pump 62 is a water pump.

[0025] In one embodiment, the first heat dissipation medium is oil, and the second heat dissipation medium is water. The low-pressure chamber of the first delivery pump 21 is connected to the first heat dissipation box 30 .

[0026] like Figure 1 As shown, in one embodiment of the present invention, the brake cooling assembly 20 also includes a first return pipeline 23, one end of the first return pipeline 23 can be connected to the liquid outlet end of the first delivery pump 21, and the other end of the first return pipeline 23 is constructed to be connected to the first cooling tank 30.

[0027] In this embodiment, the first return pipeline 23 can be used as a path for releasing pressure. When the pressure output by the first delivery pump 21 exceeds a preset pressure value, part of the first heat dissipation medium is directly returned to the first heat dissipation box 30 through the first return pipeline 23, thereby ensuring the safety and reliability of the heat dissipation system.

[0028] like Figure 1As shown, in one embodiment, the heat dissipation system also includes a sixth infusion pipeline 107 and a one-way valve 101, and the one-way valve 101 is installed on the sixth infusion pipeline 107, one end of the sixth infusion pipeline 107 is connected to the liquid outlet of the first delivery pump 21, and the other end of the sixth infusion pipeline 107 can be connected to the first return pipeline 23, that is, when the pressure output by the first delivery pump 21 exceeds the preset pressure value, the one-way valve 101 opens, at this time, part of the first heat dissipation medium flows from the liquid outlet of the first delivery pump 21 into the sixth infusion pipeline 107, and then flows to the first return pipeline 23 through the sixth infusion pipeline 107, and finally, returns from the first return pipeline 23 to the first heat dissipation box 30.

[0029] It should be noted that the opening pressure of the one-way valve 101 can be set according to actual needs, for example, 2 bar.

[0030] like Figure 1 As shown, in one embodiment of the present invention, there are two first infusion pipelines 22, and the brake cooling assembly 20 also includes a third infusion pipeline 24. The outlet ends of the two first infusion pipelines 22 are selectively connected to the inlet end of the third infusion pipeline 24, and the outlet end of the third infusion pipeline 24 is constructed to be connected to the first cooling box 30.

[0031] In this embodiment, the provision of two first infusion pipelines 22 can simultaneously or independently dissipate heat for two brake structures 50 (such as brakes) to be cooled, thereby improving the heat dissipation efficiency. The outlet ends of the two first infusion pipelines 22 are selectively connected to the inlet end of the third infusion pipeline 24, so that the first heat dissipation medium can flow back to the first heat dissipation box 30, thereby realizing the recycling of the first heat dissipation medium and improving the overall efficiency of the heat dissipation system.

[0032] like Figure 1As shown, in one embodiment of the present invention, there are four first infusion pipelines 22, and each first infusion pipeline 22 is provided with a throttle valve 104 for adjusting the flow rate of the first heat dissipation medium in each first infusion pipeline 22. Since the distances from the first delivery pump 21 to each brake structure 50 to be cooled may be inconsistent, the first infusion pipeline 22 with a short distance has a small resistance along the way and a small pressure loss, and the first infusion pipeline with a long distance has a large resistance along the way and a large pressure loss. Therefore, a throttle valve 104 is provided on each first infusion pipeline 22. In this way, the opening area of ​​the corresponding throttle valve 104 can be adjusted according to the length of the first infusion pipeline 22 (and monitoring equipment such as a flow meter can be connected as needed), so that the flow rate of each first infusion pipeline 22 is consistent, so that each brake structure 50 to be cooled has uniform heat dissipation. The heat dissipation system further includes two three-way valves 100, and there are two third infusion pipelines 24, wherein the liquid outlets of the two first infusion pipelines 22 are selectively connected to the liquid inlet of one of the third infusion pipelines 24 through one of the three-way valves 100, and the liquid outlets of the other two first infusion pipelines 22 are selectively connected to the liquid inlet of another third infusion pipeline 24 through another three-way valve 100, and the liquid outlets of the two third infusion pipelines 24 are both connected to the first heat dissipation box 30. Through the above arrangement, the four brake structures 50 (such as brakes) to be cooled can be cooled simultaneously or independently, further improving the cooling efficiency.

[0033] It should be noted that the two first infusion pipelines 22 may also be connected to the third infusion pipeline 24 by means of a three-way connector or an oil collecting box.

[0034] like Figure 1 As shown, in one embodiment of the present invention, the second driving structure includes a third delivery pump 611 and a first hydraulic motor 612, the third delivery pump 611 is drivingly connected to the first delivery pump 21, the third delivery pump 611 is drivingly coordinated with the first hydraulic motor 612, and the first hydraulic motor 612 is drivingly connected to the second delivery pump 62.

[0035] In this embodiment, the first delivery pump 21 drives the third delivery pump 611, and the third delivery pump 611 cooperates with the first hydraulic motor 612 to convert hydraulic energy into mechanical energy to drive the first hydraulic motor 612 to operate. The first hydraulic motor 612 is then connected to the second delivery pump 62 to drive the second delivery pump 62 to work.

[0036] like Figure 1As shown, in one embodiment, the heat dissipation system also includes a seventh infusion pipeline 108 and an eighth infusion pipeline 109, one end of the seventh infusion pipeline 108 is connected to the liquid inlet end of the third delivery pump 611, and the other end of the seventh infusion pipeline 108 is connected to the first heat dissipation box 30, one end of the eighth infusion pipeline 109 is connected to the liquid inlet end of a delivery pump 21, and the other end of the eighth infusion pipeline 109 is connected to the first heat dissipation box 30.

[0037] In one embodiment, the third delivery pump 611 is a gear pump, a vane pump, a plunger pump, or the like.

[0038] In one embodiment, the heat dissipation system further includes a first test connector 102 and a second test connector 103, both of which can be connected to a pressure gauge for debugging the heat dissipation system and monitoring the pressure of the heat dissipation system. The first test connector 102 is arranged at the liquid outlet of the third delivery pump 611, and the second test connector 103 is arranged at the liquid outlet of the first delivery pump 21.

[0039] like Figure 1 As shown, in one embodiment of the present invention, there are two second delivery pumps 62 and two second infusion pipelines 63, the two second delivery pumps 62 and the two second infusion pipelines 63 are arranged in a one-to-one correspondence, and the first hydraulic motor 612 is drivingly connected to the two second delivery pumps 62. Through the above arrangement, more electric drive structures 70 to be cooled (such as motors, pump motors, motor controllers, at least one of pump motor controllers, etc.) can be cooled, and the heat dissipation efficiency is higher.

[0040] like Figure 1 As shown, in one embodiment of the present invention, the electric drive heat dissipation assembly 60 also includes a drive pipeline 25, one end of the drive pipeline 25 is connected to the liquid outlet of the third delivery pump 611, and the other end of the drive pipeline 25 is connected to the first hydraulic motor 612.

[0041] In this embodiment, after the third delivery pump 611 starts working, it will extract the first heat dissipation medium and pressurize it. The pressurized first heat dissipation medium is transmitted to the first hydraulic motor 612 through the drive pipeline 25. When the high-pressure first heat dissipation medium reaches the first hydraulic motor 612, it enters the oil inlet of the first hydraulic motor 612. Inside the first hydraulic motor 612, the pressure of the first heat dissipation medium acts on the piston or blades of the first hydraulic motor 612, pushing them to rotate, thereby converting hydraulic energy into mechanical energy and realizing the driving of the first hydraulic motor 612.

[0042] like Figure 1As shown, in one embodiment of the present invention, the electric drive heat dissipation assembly 60 also includes an auxiliary heat dissipation structure 80 and a fourth infusion pipeline 90, the auxiliary heat dissipation structure 80 includes a heat dissipation fan 81 and a second hydraulic motor driven and connected to the heat dissipation fan 81, the first end of the fourth infusion pipeline 90 is connected to the liquid outlet end of the first hydraulic motor 612, and the second end of the fourth infusion pipeline 90 can be selectively connected to the first heat dissipation box 30 via the second hydraulic motor, or directly connected to the first heat dissipation box 30.

[0043] In this embodiment, the second end of the fourth fluid transfer line 90 may be selectively connected to the first heat dissipation tank 30 via the second hydraulic motor, or the second end of the fourth fluid transfer line 90 may be directly connected to the first heat dissipation tank 30 .

[0044] The first hydraulic motor 612 is driven by the high-pressure first heat dissipation medium provided by the third delivery pump 611 through the driving pipeline 25. The first heat dissipation medium flows out through the liquid outlet of the first hydraulic motor 612 and the first end of the fourth infusion pipeline 90 in sequence. When the second end of the fourth infusion pipeline 90 is selectively connected to the second hydraulic motor, the second end of the fourth infusion pipeline 90 can be connected to the second hydraulic motor, so that the high-pressure first heat dissipation medium flows into the second hydraulic motor, driving the second hydraulic motor to operate, thereby driving the heat dissipation fan 81 to rotate, and improving the heat dissipation efficiency of the heat dissipation system. When the second end of the fourth infusion pipeline 90 is directly connected to the first heat dissipation box 30, the first heat dissipation medium can be returned to the first heat dissipation box 30 to release the pressure in the system and circulate the first heat dissipation medium.

[0045] In addition, through the setting of the cooling fan 81, segmented cooling control can also be achieved, that is, when the temperature of the first cooling medium or the second cooling medium is lower than the preset value, natural air cooling is adopted; when the temperature of the first cooling medium or the second cooling medium exceeds the preset value, the second hydraulic motor drives the cooling fan 81 to rotate, and the system starts forced air cooling, making the entire cooling system more intelligent.

[0046] like Figure 1 As shown, in one embodiment of the present invention, a reversing valve 105 is provided on the fourth infusion pipeline 90. When the reversing valve 105 is in the first position, the first heat dissipation medium in the fourth infusion pipeline 90 flows directly back to the first heat dissipation box 30. When the reversing valve 105 is in the second position, the first heat dissipation medium in the fourth infusion pipeline 90 flows through the second hydraulic motor and then flows back to the first heat dissipation box 30.

[0047] Through the above arrangement, intelligent response to heat dissipation demand can be achieved. When the heat dissipation demand is not high, the reversing valve 105 is in the first position. At this time, the first heat dissipation medium in the fourth infusion pipeline 90 directly flows back to the first heat dissipation box 30, reducing unnecessary energy consumption. When additional heat dissipation is required, the reversing valve 105 is switched to the second position, and the first heat dissipation medium flows through the second hydraulic motor to drive the heat dissipation fan 81 to rotate, thereby improving the heat dissipation efficiency.

[0048] In one embodiment, the reversing valve 105 is an electromagnetic reversing valve, and the electromagnetic reversing valve is not limited to a two-position four-way form, and may also be a three-position four-way form or other mid-position functions.

[0049] like Figure 1 As shown, in one embodiment of the present invention, there are two second delivery pumps 62 and two second infusion pipelines 63, the two second delivery pumps 62 and the two second infusion pipelines 63 are arranged in a one-to-one correspondence, the first hydraulic motor 612 is driven and connected to the two second delivery pumps 62, the electric drive heat dissipation component 60 also includes a confluence pipeline 64, the liquid outlet ends of the two second infusion pipelines 63 are connected to one end of the confluence pipeline 64, and the other end of the confluence pipeline 64 is connected to the second heat dissipation box 40.

[0050] Through the above-mentioned arrangement, on the one hand, the arrangement of the confluence line 64 enables the second heat dissipation medium in the two second infusion lines 63 to flow back to the second heat dissipation box 40 through a unified path, thereby simplifying the system structure. On the other hand, the arrangement of the two second delivery pumps 62 allows the system to more effectively manage the circulation of the second heat dissipation medium. One second delivery pump 62 is responsible for cooling the front electric drive components (such as the front drive motor controller, the front motor, etc.), while the other second delivery pump 62 focuses on cooling the rear components (such as the rear motor controller, the rear motor, etc.). The two second delivery pumps 62 system can effectively transport the second heat dissipation medium to a position in the vehicle far away from the cooling source by providing a higher head and a more stable flow rate, thereby achieving long-distance heat dissipation of the electric drive components, so as to effectively meet the head requirements of large-tonnage vehicles.

[0051] like Figure 1 As shown, in one embodiment of the present invention, the electric drive heat dissipation component 60 also includes a confluence line 64 and a fifth infusion line 65, the auxiliary heat dissipation structure 80 also includes a water tank, the air outlet end of the cooling fan 81 faces the water tank, the water tank includes a water inlet and a water outlet connected to the inner cavity of the water tank, the first end of the confluence line 64 is connected to the liquid outlet end of the second infusion line 63, the second end of the confluence line 64 is connected to the water inlet, one end of the fifth infusion line 65 is connected to the water outlet, and the other end of the fifth infusion line 65 is connected to the second heat dissipation box 40.

[0052] In this embodiment, the second heat dissipation medium in the second heat dissipation box 40 is water. The confluence line 64 collects and guides the second heat dissipation medium in the second infusion line 63 to the water tank. The air outlet end of the heat dissipation fan 81 faces the water tank. Through the action of the heat dissipation fan 81, the second heat dissipation medium flowing into the water tank can be quickly cooled, and then refluxes to the second heat dissipation box 40 through the fifth infusion line 65. The setting of the heat dissipation fan 81 enhances the cooling effect and can accelerate the heat dissipation rate of the second heat dissipation medium.

[0053] like Figure 1 As shown, in one embodiment of the present invention, the auxiliary heat dissipation structure 80 also includes an oil tank and a seventh infusion pipeline (not shown in the figure), the air outlet end of the cooling fan 81 faces the oil tank, the oil tank includes an oil inlet and an oil outlet connected to the inner cavity of the oil tank, the liquid outlet end of the fourth infusion pipeline 90 is connected to the oil inlet, the liquid inlet end of the seventh infusion pipeline is connected to the oil outlet, and the liquid outlet end of the seventh infusion pipeline is connected to the first heat dissipation box 30.

[0054] In this embodiment, the first heat dissipation medium in the first heat dissipation box 30 is hydraulic oil. The first heat dissipation medium flows into the inner cavity of the oil tank through the liquid outlet end of the fourth infusion pipeline 90. Through the action of the cooling fan 81, the first heat dissipation medium flowing into the oil tank can be quickly cooled, and then flows back to the first heat dissipation box 30 through the seventh infusion pipeline. The air outlet end of the cooling fan 81 faces the oil tank, which can accelerate the heat dissipation rate of the first heat dissipation medium.

[0055] In one embodiment, the auxiliary heat dissipation structure 80 also includes a water tank and an oil tank, the air outlet end of the cooling fan 81 faces the water tank and the oil tank, the water tank includes a water inlet and a water outlet connected to the inner cavity of the water tank, the oil tank includes an oil inlet and an oil outlet connected to the inner cavity of the oil tank, the first end of the confluence line 64 is connected to the liquid outlet end of the second infusion line 63, the second end of the confluence line 64 is connected to the water inlet, one end of the fifth infusion line 65 is connected to the water outlet, the other end of the fifth infusion line 65 is connected to the second heat dissipation box 40, the liquid outlet end of the fourth infusion line 90 is connected to the oil inlet, the liquid inlet end of the seventh infusion line is connected to the oil outlet, and the liquid outlet end of the seventh infusion line is connected to the first heat dissipation box 30. The auxiliary heat dissipation structure 80 also includes two temperature sensors, which are respectively arranged at the inlet of the oil tank and the water tank or respectively arranged inside the oil tank and the water tank, and are used to monitor the temperature inside the oil tank and the water tank. When the temperature of the oil tank or the water tank exceeds a preset value, the second hydraulic motor drives the cooling fan 81 to rotate to increase the heat dissipation power.

[0056] like Figure 1As shown, in one embodiment of the present invention, the second drive structure includes a third delivery pump 611 and a first hydraulic motor 612, and the electric drive heat dissipation assembly 60 also includes a second return pipeline 66, one end of the second return pipeline 66 is connected to the liquid outlet end of the third delivery pump 611, and the other end of the second return pipeline 66 is connected to the first return pipeline 23, and an overflow valve 106 is arranged on the second return pipeline 66.

[0057] In this embodiment, an overflow valve 106 is provided on the second return line 66 for limiting the system pressure to prevent excessive pressure from damaging system components. When the set pressure is exceeded, the overflow valve 106 opens, and the first heat dissipation medium can flow back to the first heat dissipation box 30 via the second return line 66 and the first return line 23 in sequence.

[0058] The present invention also provides a vehicle, comprising: the heat dissipation system as described above.

[0059] In this embodiment, the cooling system of the vehicle has all the technical solutions and all the technical effects of the above cooling system, which will not be repeated here.

[0060] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: a first drive structure, a brake heat dissipation component and an electric drive heat dissipation component are provided. When heat is dissipated, under the drive of the first drive structure, the first delivery pump works to deliver the first heat dissipation medium in the first heat dissipation box to the first infusion pipeline. The first heat dissipation medium in the first infusion pipeline flows through the brake structure to be dissipated, and heat can be dissipated for the brake structure to be dissipated (such as a brake). The second drive structure, under the drive of the first drive structure or the first delivery pump, further drives the second delivery pump to deliver the second heat dissipation medium in the second heat dissipation box to the second infusion pipeline. Since the second heat dissipation medium in the second infusion pipeline is constructed to flow through the electric drive structure to be dissipated, heat can be dissipated for the electric drive structure to be dissipated. From the above, it can be seen that the present application has two independent heat dissipation medium circulation paths, wherein the first heat dissipation medium is used to dissipate heat of the brake structure to be dissipated, ensuring that the heat generated by the brake structure to be dissipated during long-term or high-intensity work can be effectively taken away, avoiding the problems of aging of sealing elements and deformation of structural parts, and ensuring the stability and safety of the brake structure to be dissipated (such as brakes); the second heat dissipation medium is used to dissipate heat of the electric drive structure to be dissipated, ensuring the temperature control of the electric drive structure to be dissipated during high-load operation, and avoiding overheating and performance degradation of the electric drive structure to be dissipated due to insufficient heat dissipation.

[0061] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0062] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat dissipation system, characterized in that: include: A first driving structure (10); A brake heat dissipation assembly (20), comprising a first delivery pump (21) and a first infusion pipeline (22), wherein the first drive structure (10) is drivingly connected to the first delivery pump (21), the liquid inlet end of the first delivery pump (21) and the liquid outlet end of the first infusion pipeline (22) are both configured to communicate with a first heat dissipation box (30) containing a first heat dissipation medium, the liquid outlet end of the first delivery pump (21) is connected to the liquid inlet end of the first infusion pipeline (22), and the first heat dissipation medium in the first infusion pipeline (22) is configured to flow through a brake structure (50) to be cooled; The electric drive heat dissipation component (60) comprises a second drive structure, a second delivery pump (62) and a second infusion pipeline (63), wherein the second drive structure is driven by either the first drive structure (10) or the first delivery pump (21), and the second drive structure drives and connects the second delivery pump (62), the second delivery pump (62) is installed on the second infusion pipeline (63), the liquid inlet end and the liquid outlet end of the second infusion pipeline (63) are both constructed to be connected to a second heat dissipation box (40) containing a second heat dissipation medium, and the second heat dissipation medium in the second infusion pipeline (63) is constructed to flow through the electric drive structure (70) to be cooled.

2. The heat dissipation system according to claim 1, characterized in that: The brake cooling assembly (20) further comprises a first return pipeline (23), one end of which is capable of communicating with a liquid outlet of the first delivery pump (21), and the other end of which is configured to communicate with the first cooling tank (30).

3. The heat dissipation system according to claim 1, characterized in that: There are two first infusion pipelines (22), and the brake heat dissipation assembly (20) further includes a third infusion pipeline (24). The outlet ends of the two first infusion pipelines (22) are selectively connected to the inlet end of the third infusion pipeline (24), and the outlet end of the third infusion pipeline (24) is configured to be connected to the first heat dissipation box (30).

4. The heat dissipation system according to any one of claims 1 to 3, characterized in that: The second driving structure comprises a third delivery pump (611) and a first hydraulic motor (612); the third delivery pump (611) is drivingly connected to the first delivery pump (21); the third delivery pump (611) is drivingly coordinated with the first hydraulic motor (612); and the first hydraulic motor (612) is drivingly connected to the second delivery pump (62).

5. The heat dissipation system according to claim 4, characterized in that: The electric drive heat dissipation component (60) also includes a drive pipeline (25), one end of which is connected to the liquid outlet of the third delivery pump (611), and the other end of which is connected to the first hydraulic motor (612).

6. The heat dissipation system according to claim 5, characterized in that: The electric drive heat dissipation component (60) also includes an auxiliary heat dissipation structure (80) and a fourth infusion pipeline (90), wherein the auxiliary heat dissipation structure (80) includes a heat dissipation fan (81) and a second hydraulic motor drivingly connected to the heat dissipation fan (81), wherein a first end of the fourth infusion pipeline (90) is connected to a liquid outlet of the first hydraulic motor (612), and a second end of the fourth infusion pipeline (90) can be selectively connected to the first heat dissipation box (30) via the second hydraulic motor, or directly connected to the first heat dissipation box (30).

7. The heat dissipation system according to claim 6, characterized in that: The fourth liquid infusion pipeline (90) is provided with a reversing valve. When the reversing valve is in a first position, the first heat dissipation medium in the fourth liquid infusion pipeline (90) flows directly back to the first heat dissipation tank (30). When the reversing valve is in a second position, the first heat dissipation medium in the fourth liquid infusion pipeline (90) flows through the second hydraulic motor and then flows back to the first heat dissipation tank (30).

8. The heat dissipation system according to claim 7, characterized in that: The electric drive heat dissipation component (60) also includes a confluence pipeline (64) and a fifth infusion pipeline (65), and the auxiliary heat dissipation structure (80) also includes a water tank, the air outlet end of the heat dissipation fan (81) faces the water tank, and the water tank includes a water inlet and a water outlet connected to the inner cavity of the water tank. The first end of the confluence pipeline (64) is connected to the liquid outlet end of the second infusion pipeline (63), the second end of the confluence pipeline (64) is connected to the water inlet, one end of the fifth infusion pipeline (65) is connected to the water outlet, and the other end of the fifth infusion pipeline (65) is connected to the second heat dissipation tank (40).

9. The heat dissipation system according to claim 2, characterized in that: The second driving structure comprises a third delivery pump (611) and a first hydraulic motor (612), and the electric drive heat dissipation component (60) further comprises a second return pipeline (66), one end of the second return pipeline (66) is connected to the liquid outlet end of the third delivery pump (611), and the other end of the second return pipeline (66) is connected to the first return pipeline (23), and an overflow valve (106) is provided on the second return pipeline (66).

10. A vehicle, characterized in that: include: A cooling system as claimed in any one of claims 1 to 9.

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