A thermal management system and method for static roller compactors

Abstract

The application provides a static roller compactor heat management system and method, according to the working temperature difference between the heat dissipation loaded components of the static roller compactor, the surfaces of the loaded components are connected through pipelines and divided into a plurality of heat cycles, including: engine heat cycle, power battery heat cycle, range extending motor heat cycle and driving motor heat cycle; wherein: the pipeline of the air conditioner heating system of the static roller compactor is connected in parallel to the engine heat cycle, the pipeline of the air conditioner refrigeration system of the static roller compactor is connected in parallel to the power battery heat cycle, and the range extending motor heat cycle and the driving motor heat cycle are respectively connected in parallel to the engine heat cycle; according to the application, after dividing a plurality of parallel independent heat cycles according to the temperature range of the components, the temperature of each execution component is accurately controlled through the size of the pipe diameter, the displacement of the water pump and the sequence of the components, so that the service life is effectively improved.

Description

Technical Field

[0001] This invention relates to a thermal management system and method for a static roller, belonging to the field of engineering machinery technology. Background Technology

[0002] With the increasing severity of global climate change, "dual carbon" has become a major issue of widespread international concern. The proposal of this goal is not only a proactive response to global climate change, but also an inevitable choice for countries to promote green economic and social transformation and achieve sustainable development.

[0003] Compared to the automotive industry, which is characterized by low carbon emissions per machine and intensive use, the construction machinery industry, while having a lower usage intensity, emits more than 10 times more carbon per machine than automobiles. Therefore, promoting new energy technologies in the construction machinery industry is of great significance. Currently, static roller compactors often do not precisely adjust the temperature according to the temperature range of each working unit, resulting in frequent damage to components during use. Summary of the Invention

[0004] The purpose of this invention is to provide a thermal management system and method for a static roller. By dividing the temperature range of the components into several parallel independent thermal cycles, the temperature of each actuator can be precisely controlled, effectively improving the service life and the overall life of the machine.

[0005] To achieve the above objectives / to solve the above technical problems, the present invention is implemented using the following technical solution.

[0006] On one hand, the present invention provides a thermal management system for a static roller, comprising: connecting the surfaces of the load components to be cooled through pipelines according to the difference in working temperature between the load components of the static roller, and dividing them into several thermal cycles, including: engine thermal cycle, power battery thermal cycle, range extender motor thermal cycle and drive motor thermal cycle;

[0007] Specifically: the air conditioning heating system piping of the static roller is connected in parallel to the engine's thermal cycle.

[0008] The air conditioning system piping of the static roller is connected in parallel to the thermal cycle of the power battery.

[0009] The range extender motor thermal cycle and the drive motor thermal cycle are connected in parallel to the engine thermal cycle.

[0010] Furthermore, the piping of the air conditioning heating system of the static roller is connected in parallel to the engine thermal cycle, specifically including:

[0011] The engine and radiator are connected by a pipeline; the outlet of the engine is connected to the inlet of the radiator, the outlet of the radiator is connected to the inlet of the engine, and an expansion tank is connected between the outlet of the radiator and the inlet of the engine.

[0012] The air conditioning heating system's air conditioning evaporator inlet is connected to the engine outlet, and the air conditioning evaporator outlet is connected to the engine inlet. The air conditioning evaporator uses the hot water generated by the engine for its heating function.

[0013] Furthermore, the air conditioning system piping of the static roller is connected in parallel to the thermal cycle of the power battery, specifically including:

[0014] The power battery, cooling module, and heating module are connected by pipelines; the outlet of the cooling module is connected to the inlet of the heating module, the outlet of the heating module is connected to the inlet of the power battery, the outlet of the power battery is connected to the inlet of the cooling module, and an expansion tank is connected between the outlet of the power battery and the inlet of the cooling module.

[0015] The inlet of the air conditioning evaporator in the air conditioning heating system is connected to the outlet of the cooling module, and the outlet of the air conditioning evaporator is connected to the inlet of the cooling module. The air conditioning evaporator uses the cold water generated by the cooling module for cooling.

[0016] Furthermore, the drive motor thermal cycle includes: a hydraulic oil steering pump controller, a drive motor controller, a left wheel group drive motor, and a right wheel group drive motor connected in sequence through pipelines. The outlet of the right wheel group drive motor is connected to the inlet of a radiator, the outlet of the radiator is connected to the inlet of the hydraulic oil steering pump controller, and a first electronic water pump is installed between the outlet of the radiator and the inlet of the hydraulic oil steering pump controller.

[0017] Furthermore, the range extender motor thermal cycle includes: a fan cooling circuit comprising a cooling fan motor controller, a cooling fan motor, a range extender motor controller, and a range extender motor connected sequentially via pipelines; the range extender motor outlet is connected to the radiator inlet; the radiator outlet is connected to the cooling fan motor controller inlet; and a second electronic water pump is installed at the radiator outlet connected to the cooling fan motor controller inlet.

[0018] Furthermore, the range extender motor thermal cycle and the drive motor thermal cycle share a single expansion tank.

[0019] Furthermore, the pipeline between the water outlet of the drive motor controller and the water inlet of the drive motor of the left wheel assembly is a variable diameter rubber pipe that gradually increases in size, with the inner diameter of the water pipe at the water outlet of the drive motor controller being φ16 and the inner diameter of the water pipe at the water inlet of the drive motor being φ25.

[0020] Furthermore, the water outlet of the cooling fan motor and the water inlet of the range extender motor controller are connected by a variable diameter rubber tube that gradually increases in size. The water outlet of the range extender motor controller and the water inlet of the range extender motor are also connected by a variable diameter rubber tube that gradually increases in size. The inner diameter of the water pipe at the cooling fan motor outlet is φ16, the inner diameter of the water pipe at the range extender motor controller inlet is φ20, the inner diameter of the water pipe at the range extender motor controller outlet is φ20, and the inner diameter of the water pipe at the range extender motor inlet is φ25.

[0021] Secondly, the present invention provides a static roller thermal management method based on the above-mentioned static roller thermal management system. When the temperature of the drive motor is higher than 60°C, the first electronic water pump starts to work and the thermal cycle of the drive motor starts to run.

[0022] When the temperature of the range extender motor is higher than 60℃, the second electronic water pump starts to work, and the thermal cycle of the range extender motor begins to run.

[0023] When the engine coolant temperature exceeds 100°C, the engine's built-in water pump starts working, and the engine's thermal circulation begins. When the air conditioning heating mode is turned on, the air conditioning heating system uses the engine's hot water to provide heat.

[0024] When the power battery temperature is higher than 40℃, the cooling module in the power battery thermal cycle starts air cooling, and the heating module only plays a passing role and does not play a heating role.

[0025] When the power battery temperature is below 0℃, the heating module in the power battery thermal cycle turns on the resistance heating, and the cooling module only plays the role of passing through and does not play the role of heat dissipation.

[0026] When the air conditioner is turned on in cooling mode, the air conditioning system uses the cooling module to provide cooling capacity.

[0027] The cooling module will start working if either the air conditioner is turned on in cooling mode or the power battery temperature is higher than 40°C.

[0028] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention solves the problem that the temperature is not precisely adjusted according to the temperature range of each working unit in the prior art, which causes frequent damage to components during use. The present invention divides the component temperature range into several parallel independent thermal cycles, and then precisely controls the temperature of each actuator by the pipe diameter, water pump displacement and component sequence, which effectively improves the service life and makes the overall machine life more than 20 years. Attached Figure Description

[0029] Figure 1 The diagram shows the thermal cycle of the engine and the power battery.

[0030] Figure 2 The diagram shown is a schematic of the thermal cycle of a range extender motor.

[0031] Figure 3 The diagram shows the thermal cycle of the drive motor.

[0032] Figure 4 The diagram shown is a schematic of the thermal cycle management method of the present invention. Detailed Implementation

[0033] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solution of the present invention, rather than limitations thereof. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0034] The term "and / or" simply describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " generally indicates that the preceding and following related objects have an "or" relationship. Example

[0035] like Figures 1-3 As shown, this embodiment provides a thermal management system for a static roller, including: based on the difference in operating temperature between the load components of the static roller to be cooled, the water temperature at the engine is 80-105℃, the water temperature at the power battery is 0-40℃, and the suitable water temperature at the cooling motor and range extender motor is 40-60℃.

[0036] The surfaces of the loaded components are connected by pipes and divided into several thermal cycles, including: engine thermal cycle, power battery thermal cycle, range extender motor thermal cycle and drive motor thermal cycle.

[0037] Specifically: the air conditioning heating system piping of the static roller is connected in parallel to the engine's thermal cycle.

[0038] The air conditioning system piping of the static roller is connected in parallel to the thermal cycle of the power battery.

[0039] The range extender motor thermal cycle and the drive motor thermal cycle are connected in parallel to the engine thermal cycle.

[0040] The air conditioning heating system of the static roller is connected in parallel to the engine thermal cycle, specifically including:

[0041] The engine and radiator are connected by a pipeline; the outlet of the engine is connected to the inlet of the radiator, the outlet of the radiator is connected to the inlet of the engine, and an expansion tank a is connected between the outlet of the radiator and the inlet of the engine.

[0042] The air conditioning heating system's air conditioning evaporator inlet is connected to the engine outlet, and the air conditioning evaporator outlet is connected to the engine inlet. The air conditioning evaporator uses the hot water generated by the engine for its heating function.

[0043] The air conditioning system of the static roller is connected in parallel to the thermal cycle of the power battery, specifically including:

[0044] The power battery, cooling module, and heating module are connected by pipelines; the outlet of the cooling module is connected to the inlet of the heating module, the outlet of the heating module is connected to the inlet of the power battery, the outlet of the power battery is connected to the inlet of the cooling module, and an expansion tank b is connected between the outlet of the power battery and the inlet of the cooling module.

[0045] The inlet of the air conditioning evaporator in the air conditioning heating system is connected to the outlet of the cooling module, and the outlet of the air conditioning evaporator is connected to the inlet of the cooling module. The air conditioning evaporator uses the cold water generated by the cooling module for cooling.

[0046] The drive motor thermal cycle includes: a hydraulic oil steering pump controller, a drive motor controller, a left wheel group drive motor, and a right wheel group drive motor connected in sequence through pipelines. The outlet of the right wheel group drive motor is connected to the inlet of a radiator, the outlet of the radiator is connected to the inlet of the hydraulic oil steering pump controller, and a first electronic water pump is installed between the outlet of the radiator and the inlet of the hydraulic oil steering pump controller.

[0047] The range extender motor thermal cycle includes: a fan cooling circuit comprising a cooling fan motor controller, a cooling fan motor, a range extender motor controller, and a range extender motor connected sequentially via pipes; the range extender motor outlet is connected to the radiator inlet; the radiator outlet is connected to the cooling fan motor controller inlet; and a second electronic water pump is provided at the radiator outlet-cooling fan motor controller inlet.

[0048] The range extender motor thermal cycle and the drive motor thermal cycle share a single expansion tank c.

[0049] The pipeline between the water outlet of the drive motor controller and the water inlet of the drive motor of the left wheel assembly is a variable diameter rubber pipe that gradually increases in size. The inner diameter of the water pipe at the water outlet of the drive motor controller is φ16, and the inner diameter of the water pipe at the water inlet of the drive motor is φ25.

[0050] The cooling fan motor outlet and the range extender motor controller inlet are connected by a variable diameter rubber tube that gradually increases in size. The range extender motor controller outlet and the range extender motor inlet are also connected by a variable diameter rubber tube that gradually increases in size. The inner diameter of the cooling fan motor outlet water pipe is φ16, the range extender motor controller inlet water pipe is φ20, the range extender motor controller outlet water pipe is φ20, and the range extender motor inlet water pipe is φ25. Example

[0051] like Figure 4 As shown, based on the same inventive concept as Embodiment 1, this embodiment is based on the static roller thermal management method of the static roller thermal management system described above. When the temperature of the drive motor is higher than 60°C, the first electronic water pump starts to work, and the drive motor thermal cycle 1 starts to run.

[0052] When the range extender motor temperature exceeds 60℃, the second electronic water pump starts to work, and the range extender motor thermal cycle 2 starts to run.

[0053] When the engine coolant temperature is above 100℃, the engine's built-in water pump starts working, and the engine thermal cycle 3 begins to run; when the air conditioning heating mode is turned on, the air conditioning heating system uses the engine's hot water to provide heat circulation 4.

[0054] When the power battery temperature is higher than 40℃, the cooling module in the power battery thermal cycle 6 starts air cooling, and the heating module only plays a passing role and does not play a heating role.

[0055] When the power battery temperature is below 0℃, the heating module in the power battery thermal cycle 6 activates resistance heating, and the cooling module only serves to pass through and does not dissipate heat.

[0056] When the air conditioner is turned on in cooling mode, the air conditioning system uses the cooling module to provide cooling capacity circulation 5;

[0057] The cooling module will start working if either the air conditioner is turned on in cooling mode or the power battery temperature is higher than 40°C.

[0058] According to the heat dissipation power required by each component and the water pump displacement, the present invention can connect the components together in series and parallel, thereby enabling the whole machine to achieve thermal balance.

[0059] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A static roller compactor thermal management system, characterized by, The application relates to a static roller compactor, and relates to a heat cycle system of the static roller compactor. The heat cycle system comprises a plurality of heat cycles, including an engine heat cycle, a power battery heat cycle, an extended-range motor heat cycle and a driving motor heat cycle. The air conditioner heating system pipeline of the static roller compactor is connected in parallel to the engine heat cycle, The air conditioner refrigeration system pipeline of the static roller compactor is connected in parallel to the power battery heat cycle, The extended-range motor heat cycle and the driving motor heat cycle are connected in parallel to the engine heat cycle, The air conditioner heating system pipeline of the static roller compactor is connected in parallel to the engine heat cycle, and specifically comprises the following steps: The engine and the radiator are connected through a pipeline; the water outlet of the engine is connected to the water inlet of the radiator, the water outlet of the radiator is connected to the water inlet of the engine, and an expansion water tank is arranged between the water outlet of the radiator and the water inlet of the engine; The water inlet of the air conditioner evaporator of the air conditioner heating system is connected to the water outlet of the engine, the water outlet of the air conditioner evaporator is connected to the water inlet of the engine, and the air conditioner evaporator utilizes the hot water generated by the engine to realize the heating function. The driving motor heat cycle comprises a hydraulic oil steering pump controller, a driving motor controller, a left wheel group driving motor and a right wheel group driving motor which are sequentially connected through pipelines; the water outlet of the right wheel group driving motor is connected to the water inlet of the radiator, the water outlet of the radiator is connected to the water inlet of the hydraulic oil steering pump controller, and a first electronic water pump is arranged between the water outlet of the radiator and the water inlet of the hydraulic oil steering pump controller, The extended-range motor heat cycle comprises a fan heat dissipation circuit which comprises a heat dissipation fan motor controller, a heat dissipation fan motor, an extended-range motor controller and an extended-range motor which are sequentially connected through pipelines; the water outlet of the extended-range motor is connected to the water inlet of the radiator, the water outlet of the radiator is connected to the water inlet of the heat dissipation fan motor controller, and a second electronic water pump is arranged between the water outlet of the radiator and the water inlet of the heat dissipation fan motor controller; and the pipeline between the water outlet of the driving motor controller and the water inlet of the left wheel group driving motor is a variable-diameter rubber pipe which gradually increases in diameter.

2. The static roller compactor thermal management system of claim 1, wherein, The air conditioner refrigeration system pipeline of the static roller compactor is connected in parallel to the power battery heat cycle, and specifically comprises the following steps: The power battery, a cooling module and a heating module are connected through pipelines; the water outlet of the cooling module is connected to the water inlet of the heating module, the water outlet of the heating module is connected to the water inlet of the power battery, the water outlet of the power battery is connected to the water inlet of the cooling module, and an expansion water tank is arranged between the water outlet of the power battery and the water inlet of the cooling module; the water inlet of the air conditioner evaporator of the air conditioner heating system is connected to the water outlet of the cooling module, the water outlet of the air conditioner evaporator is connected to the water inlet of the cooling module, and the air conditioner evaporator utilizes the cold water generated by the cooling module to realize the refrigeration function.

3. The static roller compactor thermal management system of claim 1, wherein, The extended-range motor heat cycle and the driving motor heat cycle share one expansion water tank.

4. The static roller compactor thermal management system of claim 1, wherein, The water outlet of the heat dissipation fan motor is connected to the water inlet of the extended-range motor controller through a variable-diameter rubber pipe which gradually increases in diameter, and the water outlet of the extended-range motor controller is connected to the water inlet of the extended-range motor through a variable-diameter rubber pipe which gradually increases in diameter.

5. A static roller compactor thermal management method based on the static roller compactor thermal management system of any one of claims 1-4, characterized in that, when the temperature of the drive motor is higher than 60℃, the first electronic water pump starts to work, and the drive motor thermal cycle starts to run; when the temperature of the range extender motor is higher than 60℃, the second electronic water pump starts to work, and the range extender motor thermal cycle starts to run; when the engine water temperature is higher than 100℃, the engine self-contained water pump starts to work, and the engine thermal cycle starts to run; when the air conditioning heating mode is turned on, the air conditioning heating system uses the engine hot water to provide heat; when the temperature of the power battery is higher than 40℃, the cooling module in the power battery thermal cycle starts to work in wind cooling, and the heating module only plays a through role and does not play a heating role; when the temperature of the power battery is lower than 0℃, the heating module in the power battery thermal cycle starts to work in resistance heating, and the cooling module only plays a through role and does not play a cooling role; when the air conditioning cooling mode is turned on, the air conditioning cooling system uses the cooling module to provide cold; and when one of the following conditions is met: the air conditioning cooling mode is turned on or the temperature of the power battery is higher than 40℃, the cooling module starts to work.

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