An integrated heat dissipation system for an all-electric loader

Abstract

The application discloses a pure electric loader integrated heat dissipation system, and relates to the technical field of heat dissipation devices, which comprises a heat dissipation assembly and four fans. The pure electric loader integrated heat dissipation system comprises a first heat radiator for dissipating heat of motors and drivers in the loader, a second heat radiator for dissipating heat of a hydraulic system in the loader and a third heat radiator for dissipating heat of a transmission oil circuit in the loader. The first heat radiator is detachably connected with the second heat radiator, and the second heat radiator is detachably connected with the third heat radiator. The four fans are connected to the front side of the heat dissipation assembly, so that the motors, the drivers, the hydraulic system and the transmission oil circuit are integrated with multiple independent heat radiators and multiple fans, and the pure electric loader integrated heat dissipation system has the advantages of convenient assembly, convenient overall machine arrangement and concentrated heat dissipation position.

Description

Technical Field

[0001] This application relates to the field of heat dissipation device technology, and in particular to an integrated heat dissipation system for a pure electric loader. Background Technology

[0002] As a representative of heavy machinery, loaders are widely used in engineering construction and mining. However, traditional fuel-powered loaders generate a large amount of exhaust gas and noise during operation, which can easily harm the environment and the health of operators; therefore, the research and development and application of new energy loaders has become an urgent need.

[0003] Currently, new energy loaders are mainly pure electric loaders. However, the motor, drive, hydraulic system, and transmission circuit of a pure electric loader generate a lot of heat during operation. If heat is not dissipated in time, it will affect the normal operation of the pure electric loader. Since the optimal operating temperature of the motor, drive, hydraulic system, and transmission circuit are different, in order to meet the heat dissipation requirements of each system, the existing technology installs multiple independent radiators on the pure electric loader and adds fans to each independent radiator to achieve thermal balance of each circuit. This results in a complex installation layout of multiple independent radiators on the pure electric loader, with heat dissipation positions scattered, making assembly inconvenient. Utility Model Content

[0004] Therefore, the technical problem to be solved by this application is to improve the phenomenon that the installation layout of multiple independent heat sinks is complicated, the heat dissipation positions are scattered, and the assembly is inconvenient in the prior art.

[0005] To address the aforementioned technical problems, this application provides an integrated cooling system for a pure electric loader, comprising: a cooling assembly and four fans; the cooling assembly is connected to the loader frame; the cooling assembly includes a first radiator, a second radiator, and a third radiator, wherein the first radiator is used to dissipate heat for the motor and drive unit in the loader, and the first radiator has a first inlet and a first outlet, the first inlet allowing coolant from the loader to flow into the first radiator, and the first outlet allowing coolant from the first radiator to flow out into the loader; the second radiator is used to dissipate heat for the hydraulic system in the loader, and the second radiator has a second inlet and a second outlet, both of which are connected to the hydraulic system in the loader; the third radiator is used to dissipate heat for the transmission oil circuit in the loader, and the third radiator has a third inlet and a third outlet, both of which are connected to the transmission oil circuit in the loader; the first radiator and the second radiator are detachably connected, and the second radiator and the third radiator are detachably connected; the four fans are mounted on the front side of the cooling assembly.

[0006] Preferably, the assembly further includes a support component, which includes a top rod, two support rods, and a bottom rod. The top ends of the two support rods are fixedly connected to the top rod, and the bottom ends of the two support rods are fixedly connected to the bottom rod. The heat dissipation component is connected between the two support rods.

[0007] Preferably, each support rod has a first positioning member, a second positioning member, a third positioning member, and a fourth positioning member arranged from top to bottom. The top and bottom of both sides of the first radiator have first connecting members. The first connecting member at the top of the first radiator is detachably connected to the first positioning member, and the first connecting member at the bottom of the first radiator is detachably connected to the second positioning member. The top and bottom of both sides of the second radiator have second connecting members. The second connecting member at the top of the second radiator is detachably connected to the second positioning member, and the second connecting member at the bottom of the second radiator is detachably connected to the third positioning member. The top and bottom of both sides of the third radiator have third connecting members. The third connecting member at the top of the third radiator is detachably connected to the third positioning member, and the third connecting member at the bottom of the third radiator is detachably connected to the fourth positioning member.

[0008] Preferably, the first connector, the second connector, and the third connector are all provided with clearance grooves, and the support rod can be embedded in the clearance grooves of the first connector, the second connector, and the third connector.

[0009] Preferably, the direction of the clearance groove opening of the first connector is the same as the direction of the clearance groove opening of the third connector, and the direction of the clearance groove opening of the first connector is opposite to the direction of the clearance groove opening of the second connector.

[0010] Preferably, the device further includes three temperature sensors and a control component, wherein two of the temperature sensors are respectively disposed at the second inlet and the second outlet of the second heat sink, and the other temperature sensor is disposed at the third inlet of the third heat sink; the control component includes a controller, a CAN bus group and an electronic control unit, wherein the controller is electrically connected to the CAN bus group, the electronic control unit and the first heat sink are both electrically connected to the CAN bus group, and the three temperature sensors and four fans are all electrically connected to the electronic control unit.

[0011] Preferably, it further includes a cooling assembly, which includes a water pump and cooling pipes surrounding the motor and drive of the loader. The first outlet of the first radiator and the inlet of the water pump are connected by a connecting pipe. The outlet of the water pump and the inlet of the cooling pipes are connected by the connecting pipes. The outlet of the cooling pipes and the first inlet of the first radiator are connected by the connecting pipes.

[0012] Preferably, the first radiator is further provided with a first drain port and a second drain port; the cooling assembly also includes an expansion tank and a drain valve, the first drain port of the first radiator and the inlet of the expansion tank are connected through the connecting pipe, the outlet of the expansion tank is connected through the connecting pipe to the connecting pipe between the first outlet and the inlet of the water pump, and the drain valve is connected to the second drain port.

[0013] Preferably, it also includes an air guide shroud, which is connected to the front side of the heat dissipation assembly, and the four fans are detachably connected to the air guide shroud.

[0014] Preferably, it also includes four protective covers, which are located on the front side of the four fans and are detachably connected to the fans.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] The integrated cooling system for a pure electric loader described in this application integrates a cooling assembly and four fans. The cooling assembly includes a first radiator for cooling the motor and drive unit, a second radiator for cooling the hydraulic system, and a third radiator for cooling the transmission oil circuit. The first and second radiators are detachably connected, and the second and third radiators are detachably connected. The four fans are connected to the front side of the cooling assembly, thereby integrating multiple independent radiators and fans corresponding to the motor, drive unit, hydraulic system, and transmission oil circuit into one unit. This system has the advantages of convenient assembly, easy overall machine layout, and centralized cooling location. Attached Figure Description

[0017] To make the content of this application easier to understand, the following detailed description is provided based on specific embodiments and accompanying drawings, wherein:

[0018] Figure 1 This is a schematic diagram of a preferred embodiment of the present application;

[0019] Figure 2 This is a rear view of a preferred embodiment of this application;

[0020] Figure 3 This is an exploded view of the support component in a preferred embodiment of this application;

[0021] Figure 4 This is a top view of the first connector;

[0022] Figure 5 This is a top view of the second connector;

[0023] Figure 6 This is a top view of the first positioning component;

[0024] Figure 7 This is a schematic diagram showing the connection between the first radiator and the cooling assembly in a preferred embodiment of this application.

[0025] Explanation of reference numerals in the accompanying drawings: 1. Heat dissipation assembly; 11. First radiator; 111. First inlet; 112. First outlet; 113. First connector; 114. First drain port; 12. Second radiator; 121. Second inlet; 122. Second outlet; 123. Second connector; 13. Third radiator; 131. Third inlet; 132. Third outlet; 133. Third connector; 2. Fan; 3. Support assembly; 31. Top rod; 32. Support rod; 321. First positioning component; 322. Second positioning component; 323. Third positioning component; 324. Fourth positioning component; 33. Bottom rod; 4. Alternating groove; 5. Temperature sensor; 6. Cooling assembly; 61. Water pump; 62. Cooling pipes; 63. Expansion tank; 64. Drain valve; 7. Air guide shroud; 8. Protective cover; 9. Lifting ring; 10. Motor; 110. Driver. Detailed Implementation

[0026] The present application will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present application, but the embodiments are not intended to limit the present application.

[0027] Reference Figures 1 to 7 As shown, this application discloses an integrated cooling system for a pure electric loader, including a cooling assembly 1 and four fans 2. The cooling assembly 1 is connected to the loader frame. The cooling assembly 1 includes a first radiator 11, a second radiator 12, and a third radiator 13. The first radiator 11 is used to dissipate heat from the motor 10 and drive 110 in the loader. The first radiator 11 has a first inlet 111 and a first outlet 112. The first inlet 111 allows coolant from the loader to flow into the first radiator 11, and the first outlet 112 allows coolant from the first radiator 11 to flow out into the loader. The second radiator 12 is used to dissipate heat from the motor 10 and drive 110 in the loader. The hydraulic system (not shown in the figure) in the machine is cooled. The second radiator 12 has a second inlet 121 and a second outlet 122, both of which are connected to the hydraulic system in the loader. The third radiator 13 is used to cool the transmission oil circuit (not shown in the figure) in the loader. The third radiator 13 has a third inlet 131 and a third outlet 132, both of which are connected to the transmission oil circuit in the loader. The first radiator 11 is detachably connected to the second radiator 12, and the second radiator 12 is detachably connected to the third radiator 13. Four fans 2 are installed on the front side of the cooling assembly 1.

[0028] Specifically, this application does not limit the connection method of the detachable connection between the first radiator 11, the second radiator 12 and the third radiator 13. In this embodiment, a bolt connection is used. In this embodiment, the installation order of the first radiator 11, the second radiator 12 and the third radiator 13 from top to bottom is the first radiator 11, the second radiator 12 and the third radiator 13. In this embodiment, the first radiator 11, the second radiator 12 and the third radiator 13 are all aluminum plate-fin structures.

[0029] The integrated cooling system for a pure electric loader described in this application integrates a cooling component 1 and four fans 2. The cooling component 1 includes a first radiator 11 for cooling the motor 10 and driver 110 in the loader, a second radiator 12 for cooling the hydraulic system in the loader, and a third radiator 13 for cooling the transmission oil circuit in the loader. The first radiator 11 and the second radiator 12 are detachably connected, and the second radiator 12 and the third radiator 13 are detachably connected. The four fans 2 are connected to the front side of the cooling component 1, thereby integrating multiple independent radiators corresponding to the motor 10, driver 110, hydraulic system, and transmission oil circuit, as well as multiple fans 2, into one unit. This system has the advantages of convenient assembly, easy overall machine layout, and centralized cooling location.

[0030] In this embodiment, preferably, a support component 3 is also included. The support component 3 includes a top rod 31, two support rods 32 and a bottom rod 33. The top ends of the two support rods 32 are fixedly connected to the top rod 31, and the bottom ends of the two support rods 32 are fixedly connected to the bottom rod 33. The heat dissipation component 1 is connected between the two support rods 32.

[0031] Specifically, in this embodiment, the base rod 33 includes two bases and a connecting rod. The two ends of the connecting rod are fixedly connected to the two opposite sides of the two bases, the bottom ends of the two support rods 32 are connected to the two bases, the two bases are detachably connected to the loader frame, the top of the first radiator 11 abuts against the top rod 31, and the bottom of the third radiator 13 abuts against the connecting rod.

[0032] Furthermore, the shape of the support rod 32 is not limited in this application; it can be a square rod or a round rod. In this embodiment, a round rod is used. The connection method between the base and the loader frame is not limited in this application; in this embodiment, a bolt connection is used.

[0033] By setting up support component 3, heat dissipation component 1 is connected between two support rods 32, and then connected to the loader frame by bottom rod 33, which facilitates the installation and disassembly of heat dissipation component 1.

[0034] In this embodiment, preferably, each support rod 32 has a first positioning member 321, a second positioning member 322, a third positioning member 323, and a fourth positioning member 324 arranged from top to bottom. The top and bottom of both sides of the first radiator 11 are provided with first connecting members 113. The first connecting member 113 located at the top of the first radiator 11 is detachably connected to the first positioning member 321, and the first connecting member 113 located at the bottom of the first radiator 11 is detachably connected to the second positioning member 322. The top and bottom of both sides of the second radiator 12 are also provided with first connecting members 113. Each of the three heat sinks is provided with a second connector 123. The second connector 123 located at the top of the second heat sink 12 is detachably connected to the second positioning member 322. The second connector 123 located at the bottom of the second heat sink 12 is detachably connected to the third positioning member 323. The top and bottom of the left and right sides of the third heat sink 13 are provided with third connectors 133. The third connector 133 located at the top of the third heat sink 13 is detachably connected to the third positioning member 323. The third connector 133 located at the bottom of the third heat sink 13 is detachably connected to the fourth positioning member 324.

[0035] Specifically, this application does not limit the connection method of detachable connection; in this embodiment, bolt connection is used.

[0036] It should be noted that the first positioning element 321, the second positioning element 322, the third positioning element 323 and the fourth positioning element 324 in this embodiment have the same shape.

[0037] By setting the first positioning member 321, the second positioning member 322, the third positioning member 323 and the fourth positioning member 324 on the support rod 32, the first heat sink 11, the second heat sink 12 and the third heat sink 13 are positioned on the two support rods 32, which facilitates the connection between the first heat sink 11, the second heat sink 12 and the third heat sink 13 and reduces the installation difficulty of the heat dissipation assembly 1.

[0038] In this embodiment, preferably, the first connector 113, the second connector 123 and the third connector 133 are all provided with clearance grooves 4, and the support rod 32 can be embedded in the clearance grooves 4 of the first connector 113, the second connector 123 and the third connector 133.

[0039] Specifically, since the support rod 32 in the embodiment is a round rod, the clearance groove 4 is arc-shaped.

[0040] By setting the support rod 32 as a round rod, it is easier for the first connector 113, the second connector 123 and the third connector 133 to be snapped onto the support rod 32, which can avoid the situation where the first connector 113, the second connector 123 and the third connector 133 cannot be installed or disassembled when they undergo slight deformation.

[0041] In this embodiment, preferably, the direction of the recessed groove 4 of the first connector 113 is the same as the direction of the recessed groove 4 of the third connector 133, and the direction of the recessed groove 4 of the first connector 113 is opposite to the direction of the recessed groove 4 of the second connector 123.

[0042] It should be noted that the first connector 113 and the third connector 133 in this embodiment have the same shape.

[0043] By setting a first connector 113 and a second connector 123 with opposite slot directions, when both the first connector 113 and the second connector 123 are connected to the second positioning member 322, the connection strength and support strength between the first radiator 11 and the second radiator 12 can be improved; by setting a second connector 123 and a third connector 133 with opposite slot directions, when both the second connector 123 and the third connector 133 are connected to the third positioning member 323, the connection strength and support strength between the second radiator 12 and the third radiator 13 can be improved.

[0044] In this embodiment, preferably, it also includes three temperature sensors 5 and a control component. Two temperature sensors 5 are respectively located at the second inlet 121 and the second outlet 122 of the second radiator 12, and the other temperature sensor 5 is located at the third inlet 131 of the third radiator 13. The control component includes a controller (not shown in the figure), a CAN bus group (not shown in the figure), and an electronic control unit (not shown in the figure). The controller is electrically connected to the CAN bus group, and the electronic control unit and the first radiator 11 are both electrically connected to the CAN bus group. The three temperature sensors 5 and the four fans 2 are all electrically connected to the electronic control unit.

[0045] It should be noted that the four fans 2 provided in this application correspond to the cooling of the motor 10, the driver 110, the hydraulic system, and the transmission oil circuit;

[0046] The electronic control unit (ECU) is configured with multiple preset temperature ranges. The CAN bus group collects the real-time operating temperature of the motor 10 in the loader and sends it to the ECU. The ECU compares the real-time operating temperature of the motor 10 with the preset temperature range. When the temperature reaches the first preset temperature range, the ECU controls the fan 2 corresponding to the motor 10 to start operating at a first speed. When the CAN bus group sends the real-time operating temperature of the motor 10 to the ECU again, the ECU continues to compare the real-time operating temperature of the motor 10 with the preset temperature range. When the temperature reaches the second preset temperature range, the ECU controls the fan 2 corresponding to the motor 10 to operate at a second speed.

[0047] The CAN bus group collects the operating temperature of the driver 110 in the loader in real time and sends the real-time operating temperature to the electronic control unit. The electronic control unit compares whether the real-time operating temperature of the driver 110 reaches the preset temperature range. When it reaches the third preset temperature range, the electronic control unit controls the fan 2 corresponding to the driver 110 to start working at the first speed. When the CAN bus group sends the real-time operating temperature of the driver 110 to the electronic control unit again, the electronic control unit continues to compare whether the real-time operating temperature of the driver 110 reaches the preset temperature range. When it reaches the fourth preset temperature range, the electronic control unit controls the fan 2 corresponding to the driver 110 to work at the second speed.

[0048] Two temperature sensors 5 collect the real-time operating temperatures of the hydraulic system inlet and outlet of the loader and send them to the electronic control unit (ECU). The ECU compares the real-time operating temperatures of the hydraulic system inlet and outlet to see if they reach a preset temperature range. When they reach the fifth preset temperature range, the ECU controls the corresponding fan 2 of the hydraulic system to start working at the first speed. When the two temperature sensors 5 send the real-time operating temperatures of the hydraulic system inlet and outlet to the ECU again, the ECU continues to compare the real-time operating temperatures of the hydraulic system inlet and outlet to see if they reach a preset temperature range. When they reach the sixth preset temperature range, the ECU controls the corresponding fan 2 of the hydraulic system to work at the second speed.

[0049] Another temperature sensor 5 collects the real-time operating temperature of the transmission oil circuit inlet in the loader and sends the real-time operating temperature to the electronic control unit (ECU). The ECU compares the real-time operating temperature of the transmission oil circuit inlet with whether it reaches the preset temperature range. When it reaches the preset seventh temperature range, the ECU controls the corresponding fan 2 of the transmission oil circuit to start working at the first speed. When the other temperature sensor 5 sends the real-time operating temperature of the transmission oil circuit inlet to the ECU again, the ECU continues to compare whether the real-time operating temperature of the transmission oil circuit inlet reaches the preset temperature range. When it reaches the preset eighth temperature range, the ECU controls the corresponding fan 2 of the transmission oil circuit to start working at the second speed.

[0050] It should be noted that when the electronic control unit cannot receive the real-time operating temperature of any of the motor 10, driver 110, hydraulic system and transmission oil circuit, the electronic control unit controls the corresponding fan 2 to continue to work at the second speed.

[0051] By installing temperature sensors 5 at the second inlet 121 and the second outlet 122 of the second radiator 12 and the third inlet 131 of the third radiator 13, the electronic control unit can collect the hydraulic oil temperature at the inlet of the hydraulic system, the hydraulic oil temperature at the outlet of the hydraulic system, and the oil temperature at the outlet of the transmission oil circuit in real time. The actual heat dissipation effect of the second radiator 12 and the third radiator 13 can be evaluated in real time to control the speed of the corresponding fan 2.

[0052] By setting multiple temperature ranges for the electronic control unit (ECU), and then using the CAN bus group and three temperature sensors 5 to collect the operating temperatures of the motor 10, driver 110, hydraulic system, and transmission oil circuit in real time, the ECU controls the corresponding fan 2 to start, thereby achieving heat dissipation for the motor 10, driver 110, hydraulic system, and transmission oil circuit at different temperatures, thus improving the heat dissipation effect. The ECU also sets a first speed and a second speed for the fan 2, realizing multi-level speed regulation of the fan 2, which further improves the heat dissipation effect of this application on the motor 10, driver 110, hydraulic system, and transmission oil circuit in the loader.

[0053] In this embodiment, the electronic control unit forms a signal connection with the controller through the CAN bus group. Since the CAN bus group has strong anti-interference capability, it can transmit the working information to the controller in a timely and accurate manner, so that the operator can receive accurate information and grasp the accurate working status of this application.

[0054] In this embodiment, preferably, a cooling assembly 6 is also included. The cooling assembly 6 includes a water pump 61 and a cooling pipe 62. The cooling pipe 62 surrounds the outer periphery of the loader's motor 10 and drive 110. The first outlet 112 of the first radiator 11 and the inlet of the water pump 61 are connected by a connecting pipe (not shown in the figure). The outlet of the water pump 61 is connected to the inlet of the cooling pipe 62 by a connecting pipe. The outlet of the cooling pipe 62 and the first inlet 111 of the first radiator 11 are connected by a connecting pipe.

[0055] In a specific implementation, coolant is injected into the first radiator 11, and the controller starts the water pump 61. The water pump 61 pumps the coolant from the first radiator 11 to the cooling pipe 62. The coolant exchanges heat with the motor 10 and the driver 110 through the cooling pipe surrounding the motor 10 and the driver 110. Then, due to the pressure of the water pump 61, the coolant with a higher temperature after heat exchange is delivered to the first radiator 11. Under the action of the first radiator 11 or under the combined action of the corresponding fan 2 and the first radiator 11, the coolant exchanges heat, so that the temperature of the coolant decreases. The coolant continues to be pumped by the water pump 61 to the cooling pipe at a lower temperature to dissipate heat from the motor 10 and the driver 110, so as to realize the circulation of coolant to dissipate heat from the motor 10 and the driver 110.

[0056] By setting up a water pump 61 and a cooling pipe 62, heat dissipation is achieved for the motor 10 and the driver 110, thereby improving the heat dissipation effect. Under the action of the water pump 61, there is a certain pressure in the cooling pipe 62, which accelerates the circulation of coolant in the cooling pipe and the first radiator 11, thereby improving the heat dissipation efficiency.

[0057] In this embodiment, preferably, the first radiator 11 is further provided with a first drain port 114 and a second drain port (not shown in the figure); the cooling assembly 6 also includes an expansion tank 63 and a drain valve 64. The first drain port 114 of the first radiator 11 and the inlet of the expansion tank 63 are connected by a connecting pipe. The outlet of the expansion tank 63 is connected by a connecting pipe to the connecting pipe between the first outlet 112 and the inlet of the water pump 61. The drain valve 64 is connected at the second drain port.

[0058] By setting up an expansion tank 63, when the coolant temperature is high, the volume of the coolant expands, and the coolant in the first radiator 11 flows into the expansion tank 63 through the first drain port 114 and the inlet of the expansion tank 63; while when the coolant temperature is low, the volume of the coolant contracts, and gaps appear in the first radiator 11. The coolant in the expansion tank 63 can flow into the connecting pipe between the first outlet 112 and the inlet of the water pump 61 through the outlet of the expansion tank 63, and participate in the heat dissipation process to fill the gaps in the first radiator 11.

[0059] Furthermore, the cooling assembly 6 in this application also includes a liquid level sensor (not shown in the figure). The liquid level sensor is installed in the expansion tank 63 and is electrically connected to the controller. Coolant is prone to loss during the circulation and heat dissipation process. When the coolant level in the expansion tank 63 drops to a certain position, the liquid level sensor sends a signal to the controller, and the controller feeds back the information to the operator.

[0060] By providing a drain valve 64 on the first radiator 11, it is convenient to drain and replace the coolant in the first radiator 11.

[0061] In this embodiment, preferably, it also includes an air guide shroud 7, which is connected to the front side of the heat dissipation assembly 1, and the four fans 2 are detachably connected to the air guide shroud 7.

[0062] In a specific implementation, the top of the air guide shroud 7 is detachably connected to the top of the first radiator 11, and the bottom of the air guide shroud 7 is detachably connected to the bottom of the third radiator 13.

[0063] Furthermore, this application does not limit the connection method between the air guide shroud 7 and the heat dissipation assembly 1; in this embodiment, a bolt connection is used.

[0064] By setting up the air guide shroud 7 and mounting the fan 2 on the air guide shroud 7, the air generated by the rotation of the fan 2 can be concentrated, improving the heat dissipation effect on the motor 10, the driver 110, the hydraulic system and the transmission oil circuit.

[0065] In this embodiment, preferably, four protective covers 8 are also included, which are located on the front side of the four fans 2 and are detachably connected to the fans 2.

[0066] By designing four protective covers 8 on the front side of the four fans 2, the fans 2 can be protected from impacts and objects in the environment can be prevented from being sucked into the fans 2.

[0067] Furthermore, this application also includes a plurality of lifting rings 9, all of which are mounted on the top of the first radiator 11 for connection with external lifting machinery.

[0068] The implementation principle of this application embodiment is as follows: The first radiator 11, the second radiator 12, and the third radiator 13 corresponding to the motor 10, the driver 110, the hydraulic system, and the transmission oil circuit, along with four fans 2, are modularly installed as one unit and mounted on the loader frame. When the loader is running, the coolant dissipates heat from the motor 10 and the driver 110 through the water pump 61 and the cooling pipes 62 surrounding the motor 10 and the driver 110. The first radiator 11 cools the coolant, enabling the coolant to circulate and cool down. The CAN bus group collects the operating temperature of the motor 10 and the driver 110 in real time and sends the collected real-time operating temperature to the electronic control unit, which compares whether the real-time operating temperature has reached the preset operating temperature. The system controls the corresponding fan 2 to operate at a first or second speed, thereby improving the heat exchange efficiency of the coolant and cooling the motor 10 and driver 110. Three temperature sensors 5 collect the working temperatures at the inlet, outlet, and transmission oil inlet of the hydraulic system in real time and send the working temperatures to the electronic control unit. The electronic control unit compares the real-time working temperatures with the preset working range and controls the corresponding fan 2 to operate at the first or second speed, thereby cooling the hydraulic system and transmission oil. When the working temperature collected by the CAN bus group and any one of the three temperature sensors 5 is lower than the preset temperature range, the electronic control unit can control the corresponding fan 2 to stop working.

[0069] In summary, the integrated cooling system for a pure electric loader provided in this application modularly integrates the radiators and fans 2 corresponding to the motor 10, driver 110, hydraulic system, and transmission oil circuit into one unit, which facilitates the overall layout of the machine, reduces assembly difficulty, and centralizes the heat dissipation location. By presetting multiple temperature ranges for the electronic control unit, heat dissipation of the motor 10, driver 110, hydraulic system, and transmission oil circuit at different operating temperatures is achieved, thereby improving the heat dissipation effect. Furthermore, by setting different speed levels for the fan 2, the heat dissipation effect is further improved.

[0070] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An integrated cooling system for a pure electric loader, characterized in that, include: Heat dissipation assembly (1) and four fans (2); The heat dissipation assembly (1) is connected to the loader frame; the heat dissipation assembly (1) includes a first radiator (11), a second radiator (12), and a third radiator (13). The first radiator (11) is used to dissipate heat from the motor (10) and drive (110) in the loader. The first radiator (11) has a first inlet (111) and a first outlet (112). The first inlet (111) allows the coolant in the loader to flow into the first radiator (11), and the first outlet (112) allows the coolant in the first radiator (11) to flow out into the loader. The second radiator (12) is used to dissipate heat from the motor (10) and drive (110) in the loader. The hydraulic system is cooled. The second radiator (12) has a second inlet (121) and a second outlet (122). Both the second inlet (121) and the second outlet (122) are connected to the hydraulic system in the loader. The third radiator (13) is used to cool the transmission oil circuit in the loader. The third radiator (13) has a third inlet (131) and a third outlet (132). Both the third inlet (131) and the third outlet (132) are connected to the transmission oil circuit in the loader. The first radiator (11) is detachably connected to the second radiator (12), and the second radiator (12) is detachably connected to the third radiator (13). The four fans (2) are mounted on the front side of the heat dissipation assembly (1).

2. The integrated cooling system for a pure electric loader according to claim 1, characterized in that: It also includes a support assembly (3), which includes a top rod (31), two support rods (32) and a bottom rod (33). The top ends of the two support rods (32) are fixedly connected to the top rod (31), and the bottom ends of the two support rods (32) are fixedly connected to the bottom rod (33). The heat dissipation assembly (1) is connected between the two support rods (32).

3. The integrated cooling system for a pure electric loader according to claim 2, characterized in that: Each of the support rods (32) has a first positioning member (321), a second positioning member (322), a third positioning member (323), and a fourth positioning member (324) arranged from top to bottom. The top and bottom of the left and right sides of the first radiator (11) are each provided with a first connecting member (113). The first connecting member (113) at the top of the first radiator (11) is detachably connected to the first positioning member (321), and the first connecting member (113) at the bottom of the first radiator (11) is detachably connected to the second positioning member (322). The top and bottom of the left and right sides of the second radiator (12) are each provided with a second positioning member (324). The connector (123) located at the top of the second radiator (12) is detachably connected to the second positioning member (322), and the second connector (123) located at the bottom of the second radiator (12) is detachably connected to the third positioning member (323). The top and bottom of the left and right sides of the third radiator (13) are provided with third connectors (133). The third connector (133) located at the top of the third radiator (13) is detachably connected to the third positioning member (323), and the third connector (133) located at the bottom of the third radiator (13) is detachably connected to the fourth positioning member (324).

4. The integrated cooling system for a pure electric loader according to claim 3, characterized in that: The first connector (113), the second connector (123) and the third connector (133) are all provided with a clearance groove (4), and the support rod (32) can be embedded in the clearance groove (4) of the first connector (113), the second connector (123) and the third connector (133).

5. The integrated cooling system for a pure electric loader according to claim 4, characterized in that: The opening direction of the clearance groove (4) of the first connector (113) is the same as that of the clearance groove (4) of the third connector (133), and the opening direction of the clearance groove (4) of the first connector (113) is opposite to that of the clearance groove (4) of the second connector (123).

6. The integrated cooling system for a pure electric loader according to claim 1, characterized in that: It also includes three temperature sensors (5) and a control component, wherein two of the temperature sensors (5) are respectively located at the second inlet (121) and the second outlet (122) of the second radiator (12), and the other temperature sensor (5) is located at the third inlet (131) of the third radiator (13); The control components include a controller, a CAN bus group, and an electronic control unit. The controller is electrically connected to the CAN bus group, and the electronic control unit and the first heat sink (11) are both electrically connected to the CAN bus group. The three temperature sensors (5) and the four fans (2) are all electrically connected to the electronic control unit.

7. The integrated cooling system for a pure electric loader according to claim 1, characterized in that: It also includes a cooling assembly (6), which includes a water pump (61) and a cooling pipe (62). The cooling pipe (62) surrounds the outer periphery of the motor (10) and drive (110) of the loader. The first outlet (112) of the first radiator (11) and the inlet of the water pump (61) are connected by a connecting pipe. The outlet of the water pump (61) and the inlet of the cooling pipe (62) are connected by the connecting pipe. The outlet of the cooling pipe (62) and the first inlet (111) of the first radiator (11) are connected by the connecting pipe.

8. The integrated cooling system for a pure electric loader according to claim 7, characterized in that: The first radiator (11) is also provided with a first drain port (114) and a second drain port; The cooling assembly (6) also includes an expansion tank (63) and a drain valve (64). The first drain port (114) of the first radiator (11) and the inlet of the expansion tank (63) are connected through the connecting pipe. The outlet of the expansion tank (63) is connected through the connecting pipe to the connecting pipe between the first outlet (112) and the inlet of the water pump (61). The drain valve (64) is connected to the second drain port.

9. The integrated cooling system for a pure electric loader according to claim 1, characterized in that: It also includes an air guide shroud (7), which is connected to the front side of the heat dissipation assembly (1), and the four fans (2) are detachably connected to the air guide shroud (7).

10. The integrated cooling system for a pure electric loader according to claim 1, characterized in that: It also includes four protective covers (8), which are located on the front side of the four fans (2) and are detachably connected to the fans (2).

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