Thermal management system of hybrid power core drill and core drill

Abstract

The thermal management system comprises a hydraulic oil cooling system, a battery thermal management system and a driver thermal management system, and the hydraulic oil cooling system is provided with a hydraulic oil cooling loop which is connected with a first hydraulic oil radiator and a second hydraulic oil radiator; the battery heat management system is provided with a battery cooling loop and a refrigerator cooling loop, and the refrigerator cooling loop is connected with the battery radiator; the driver heat management system is provided with a driver cooling loop which is connected with the motor controller radiator. According to the heat management system of the hybrid power core drilling machine and the core drilling machine, the hydraulic oil cooling system, the battery heat management system and the driver heat management system are arranged to dissipate heat of hydraulic oil, the battery and the motor controller, stable operation of the core drilling machine in the working process is guaranteed, and the service life of the core drilling machine is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to geological exploration equipment technical field, concretely is a kind of thermal management system of hybrid power core drill rig and core drill rig. BACKGROUND

[0002] Traditional core drill rig is a kind of core drilling equipment using fuel engine as power, and core drilling is an important link in the process of mineral resources exploration. In the drilling construction process, core drill rig is the core equipment. But its fuel consumption, low energy utilization rate of shortcomings also caused widespread concern. Nowadays in the double pursuit of energy saving and environmental protection, we developed hybrid power core drill rig, on the basis of traditional fuel engine increased battery power system, double power source meets different working condition demand, both environmental protection and can improve energy utilization rate. But the original thermal management system is not applicable to hybrid power core drill rig.

[0003] Hydraulic oil of hybrid power core drill rig needs to be cooled, and the working medium of hybrid drill is hydraulic oil. The engine drives the main pump to provide power for the hydraulic system. The hydraulic oil reaches the actuator to complete the action of the whole machine. In this process, the hydraulic oil will generate a lot of heat, which will cause the temperature of the hydraulic oil to rise continuously. When the temperature of the hydraulic oil exceeds 80°C, the hydraulic oil will age, and the function and service life of the hydraulic components and seals will be affected, which may cause hydraulic system failure.

[0004] The battery of hybrid power core drill rig will generate some heat during charging and discharging. Since the battery is in a relatively closed environment, if the heat is not dissipated in time, the temperature will rise, affecting the function, efficiency and service life of the battery, and even causing safety risks in serious cases.

[0005] The motor of hybrid power core drill rig needs to use a motor controller to control its operation. During operation, the electronic components of the motor controller will generate heat, which will cause the temperature to rise, resulting in abnormal operation of the motor controller, and even damage and shorten its service life.

[0006] Therefore, the above technical problems need to be solved. SUMMARY

[0007] The utility model provides a kind of thermal management system of hybrid power core drill rig and core drill rig for above technical problems, and the heat dissipation of hydraulic oil, battery and motor controller is guaranteed by setting hydraulic oil cooling system, battery thermal management system and driver thermal management system, to ensure stable operation during the operation of core drill rig and prolong its service life.

[0008] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0009] A kind of thermal management system of hybrid core drill, including hydraulic oil cooling system, battery thermal management system and driver thermal management system;

[0010] The hydraulic oil cooling system is provided with hydraulic oil radiator one and hydraulic oil radiator two, the battery thermal management system is provided with battery radiator, and the driver thermal management system is provided with motor controller radiator;

[0011] The hydraulic oil cooling system is provided with hydraulic oil cooling circuit connecting the hydraulic oil radiator one and the hydraulic oil radiator two;The battery thermal management system is provided with battery cooling circuit and refrigerator cooling circuit, and the refrigerator cooling circuit is connected with the battery radiator;The driver thermal management system is provided with driver cooling circuit connected with the motor controller radiator.

[0012] The thermal management system of the hybrid core drill is cooled by setting hydraulic oil cooling system, battery thermal management system and driver thermal management system for hydraulic oil, battery and motor controller, to ensure stable operation during the working process of core drill and prolong its service life.

[0013] Further optimization scheme also includes engine fan and thermal management fan, the engine fan rotates and takes away the heat of the hydraulic oil radiator one, and the thermal management fan rotates and takes away the heat of the hydraulic oil radiator two, battery radiator and motor controller radiator.

[0014] The engine fan rotates and drives the air around the hydraulic oil radiator one to flow faster, enhancing the heat dissipation capacity of the hydraulic oil radiator one;The thermal management fan rotates and drives the air around the hydraulic oil radiator two, battery radiator and motor controller radiator to flow faster, enhancing the heat dissipation capacity thereof. Since the hydraulic oil is in working state for a long time, the engine fan is specially equipped to blow the hydraulic oil radiator one alone, and the other radiators share the thermal management fan. According to the need of heat dissipation during the working process, the fan is reasonably configured to ensure the heat dissipation efficiency and the compact structure of the thermal management system.

[0015] Further optimization scheme, the hydraulic oil cooling circuit absorbs oil from hydraulic oil tank by hydraulic pump, and the discharged hydraulic oil passes through hydraulic valve to hydraulic cylinder and hydraulic motor, then passes through the hydraulic oil radiator one and the hydraulic oil radiator two, and finally returns to the hydraulic oil tank.

[0016] The hydraulic oil is driven by hydraulic pump, flows through the hydraulic oil radiator one and the hydraulic oil radiator two through the hydraulic oil cooling circuit, so that the hydraulic oil is fully cooled, maintains stable temperature, avoids high oil temperature causing hydraulic system failure, slows down the deterioration speed of hydraulic oil, and prolongs the service life of hydraulic components and seals.

[0017] In a further optimized design, the battery cooling circuit is formed by the battery circuit pumping cooling water through the cooler and the battery heat dissipation area; the cooler cooling circuit is formed by the compressor, the cooler, and the battery heat dissipation area connected in sequence.

[0018] The battery thermal management system determines whether the battery needs cooling when it is in either discharging or charging state. When cooling is needed, the battery circuit water pump is activated, and the cooling water in the battery cooling circuit carries away the heat inside the battery. The hot water is cooled by the refrigerator. At the same time, the compressor starts, and the compressed gas carries the heat to the battery heat sink for dissipation through the refrigerator.

[0019] In a further optimized design, the driver cooling circuit uses a motor controller water pump to pump cooling water through the motor controller heat dissipation area and the motor controller heat sink to form a loop.

[0020] When the driver thermal management system determines that the motor controller temperature is too high, the motor controller water pump will activate, carrying the heat inside the motor controller to the motor controller heat sink for dissipation via cooling water.

[0021] In a further optimized design, the engine fan is connected to the engine and directly driven by it. This direct connection and drive of the engine fan simplifies the structure, makes the thermal management system more compact, and facilitates accurate control of the engine fan's operation.

[0022] Further optimization of the scheme: the hydraulic oil cooling system has the following operating modes:

[0023] When the engine is working alone and the battery power system is not working, the engine fan rotates to cool the hydraulic oil cooler.

[0024] When the battery power system is working alone and the engine is not working, the thermal management fan rotates to dissipate heat from the hydraulic oil radiator.

[0025] When the engine and battery power system are working simultaneously, the engine fan and the thermal management fan rotate to dissipate heat from the hydraulic oil cooler and the hydraulic oil cooler, respectively.

[0026] Hydraulic oil cooling systems have different heat dissipation modes depending on different working conditions, saving energy and ensuring the heat dissipation efficiency of the thermal management system.

[0027] A further optimization includes a water tank with two outlets: one connected to the battery cooling circuit and the other to the driver cooling circuit. The water tank replenishes water to both the battery and driver cooling circuits, improving cooling efficiency and ensuring stable heat dissipation for both systems.

[0028] A core drilling rig includes a thermal management system for any of the aforementioned hybrid core drilling rigs.

[0029] This utility model has the following technical advantages compared with the prior art:

[0030] The thermal management system of this hybrid core drilling rig dissipates heat from the hydraulic oil, battery, and motor controller through a hydraulic oil cooling system, a battery thermal management system, and a driver thermal management system, ensuring stable operation and extending the service life of the core drilling rig. The hydraulic oil cooling system dissipates heat from the hydraulic oil by connecting hydraulic oil radiators one and two via a hydraulic oil cooling circuit. The battery thermal management system dissipates heat from the battery through a battery cooling circuit and a cooler cooling circuit, with the cooler cooling circuit connected to the battery radiator. The driver thermal management system dissipates heat from the motor controller by connecting the driver cooling circuit to the motor controller radiator. Attached Figure Description

[0031] Figure 1 This is a logic block diagram of a specific embodiment of the thermal management system of a hybrid core drilling rig according to the present invention.

[0032] In the diagram: Hydraulic oil cooling circuit 1, battery cooling circuit 2, refrigerator cooling circuit 3, driver cooling circuit 4. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0034] like Figure 1 The diagram shown is a logic block diagram of a specific embodiment of the thermal management system of a hybrid core drilling rig according to this utility model.

[0035] like Figure 1 As shown, the thermal management system of a hybrid core drilling rig in this embodiment includes a hydraulic oil cooling system with a hydraulic oil radiator 1 and a hydraulic oil radiator 2, a battery thermal management system with a battery radiator, and a driver thermal management system with a motor controller radiator.

[0036] like Figure 1 As shown, the hydraulic oil cooling system has a hydraulic oil cooling circuit 1 connected to hydraulic oil radiator 1 and hydraulic oil radiator 2; the battery thermal management system has a battery cooling circuit 2 and a cooler cooling circuit 3, with the cooler cooling circuit 3 connected to the battery radiator; the driver thermal management system has a driver cooling circuit 4 connected to the motor controller radiator.

[0037] The thermal management system of this hybrid core drilling rig dissipates heat from the hydraulic oil, battery, and motor controller by setting up a hydraulic oil cooling system, a battery thermal management system, and a driver thermal management system, ensuring stable operation of the core drilling rig during operation and extending its service life.

[0038] like Figure 1 As shown, the thermal management system of the hybrid core drilling rig also includes an engine fan and a thermal management fan. The engine fan rotates to remove heat from the hydraulic oil radiator 1, and the thermal management fan rotates to remove heat from the hydraulic oil radiator 2, the battery radiator, and the motor controller radiator.

[0039] The engine fan's rotation accelerates the airflow around hydraulic oil cooler one, enhancing its heat dissipation capacity. Similarly, the thermal management fan's rotation accelerates the airflow around hydraulic oil cooler two, the battery cooler, and the motor controller cooler, enhancing their heat dissipation capabilities. Because the hydraulic oil is constantly in operation, a dedicated engine fan blows air onto hydraulic oil cooler one, while the other coolers share a thermal management fan. The fans are rationally configured according to the heat dissipation requirements during operation, ensuring efficient cooling and a compact thermal management system.

[0040] like Figure 1 As shown, hydraulic oil cooling circuit 1 draws oil from the hydraulic oil tank through a hydraulic pump, discharges the hydraulic oil through a hydraulic valve to the hydraulic cylinder and hydraulic motor, then passes through hydraulic oil radiator 1 and hydraulic oil radiator 2, and finally returns to the hydraulic oil tank.

[0041] Driven by the hydraulic pump, the hydraulic oil flows through the hydraulic oil cooling circuit 1 and the hydraulic oil radiator 1 and hydraulic oil radiator 2, so that the hydraulic oil can be fully cooled and maintained at a stable temperature. This prevents the hydraulic system from failing due to excessive oil temperature, slows down the deterioration of the hydraulic oil, and extends the life of hydraulic components and seals.

[0042] like Figure 1 As shown, the battery cooling circuit 2 forms a circuit by passing cooling water through the cooler and battery heat dissipation area via the battery circuit water pump; the cooler cooling circuit 3 forms a circuit by connecting the compressor, cooler, and battery heat dissipation area in sequence.

[0043] The battery thermal management system determines whether the battery needs cooling when it is in either the discharging or charging state. When cooling is required, the battery circuit water pump is activated, and the cooling water in the battery cooling circuit 2 carries away the heat inside the battery. The hot water is cooled by the refrigerator. At the same time, the compressor starts, and the compressed gas carries the heat to the battery heat sink through the refrigerator to dissipate it.

[0044] like Figure 1 As shown, the driver cooling circuit 4 uses a motor controller water pump to pump cooling water through the motor controller heat dissipation area and the motor controller heat sink to form a circuit.

[0045] When the driver thermal management system determines that the motor controller temperature is too high, the motor controller water pump will activate, carrying the heat inside the motor controller to the motor controller heat sink for dissipation via cooling water.

[0046] like Figure 1 As shown, the engine fan is connected to the engine and directly driven by the engine. This direct connection and drive of the engine fan simplifies the structure, makes the thermal management system compact, and facilitates accurate control of the engine fan's operation.

[0047] The hydraulic oil cooling system has the following operating modes:

[0048] When the engine is working alone and the battery power system is not working, the engine fan rotates to cool the hydraulic oil cooler.

[0049] When the battery power system is working alone and the engine is not working, the thermal management fan rotates to cool the hydraulic oil radiator.

[0050] When the engine and battery power system are working simultaneously, the engine fan and thermal management fan rotate to cool the hydraulic oil cooler 1 and hydraulic oil cooler 2 respectively.

[0051] Hydraulic oil cooling systems have different heat dissipation modes depending on different working conditions, saving energy and ensuring the heat dissipation efficiency of the thermal management system.

[0052] like Figure 1 As shown, the thermal management system of this hybrid core drill also includes a water tank with two outlets. One outlet connects to the battery cooling circuit 2, and the other outlet connects to the drive cooling circuit 4. The water tank is used to replenish water to the battery cooling circuit 2 and the drive cooling circuit 4, improving cooling efficiency and ensuring stable heat dissipation for both the battery thermal management system and the drive thermal management system.

[0053] This utility model also discloses a core drilling rig, including the thermal management system of the aforementioned hybrid core drilling rig.

[0054] The hybrid core drill rig's thermal management system, along with the core drill rig itself, uses a hydraulic oil cooling system, a battery thermal management system, and a driver thermal management system to dissipate heat from the hydraulic oil, battery, and motor controller, ensuring stable operation of the core drill rig during operation and extending its service life.

[0055] The hydraulic oil cooling system connects to hydraulic oil radiators one and two via a hydraulic oil cooling circuit to dissipate heat from the hydraulic oil; the battery thermal management system dissipates heat from the battery via a battery cooling circuit and a cooler cooling circuit, with the cooler cooling circuit connected to the battery radiator; the driver thermal management system dissipates heat from the motor controller via a driver cooling circuit connected to the motor controller radiator.

[0056] Hydraulic oil cooler 1 has a separate engine fan for enhanced cooling, directly driven by the engine and synchronized with its operation. No additional engine fan control is required, resulting in a simple structure. Hydraulic oil cooler 2, the battery cooler, and the motor controller cooler share a common thermal management fan for enhanced cooling. The fan configuration is optimized to ensure a compact thermal management system structure.

[0057] In summary, as described in the specification and figures, this utility model has been manufactured into actual samples and subjected to multiple use tests. The test results demonstrate that this utility model achieves its intended purpose, and its practicality is beyond doubt. The embodiments described above are merely for illustrative purposes and are not intended to limit the scope of this utility model. Any equivalent embodiments made by those with common knowledge in the relevant technical field, utilizing the technical content disclosed in this utility model, without departing from the scope of the technical features and similar features disclosed in this utility model, are all within the protection scope of this utility model.

Claims

1. A thermal management system for a hybrid core drilling rig, characterized in that: This includes the hydraulic oil cooling system, the battery thermal management system, and the driver thermal management system; The hydraulic oil cooling system is equipped with a hydraulic oil radiator 1 and a hydraulic oil radiator 2; the battery thermal management system is equipped with a battery radiator; and the driver thermal management system is equipped with a motor controller radiator. The hydraulic oil cooling system is provided with a hydraulic oil cooling circuit (1) connecting the first hydraulic oil radiator and the second hydraulic oil radiator; the battery thermal management system is provided with a battery cooling circuit (2) and a cooler cooling circuit (3), the cooler cooling circuit (3) connecting the battery radiator; the driver thermal management system is provided with a driver cooling circuit (4) connecting the motor controller radiator.

2. The thermal management system of the hybrid core drilling rig according to claim 1, characterized in that, It also includes an engine fan and a thermal management fan. The engine fan rotates to remove heat from the first hydraulic oil cooler, and the thermal management fan rotates to remove heat from the second hydraulic oil cooler, the battery cooler, and the motor controller cooler.

3. The thermal management system of the hybrid core drilling rig according to claim 1, characterized in that, The hydraulic oil cooling circuit (1) draws oil from the hydraulic oil tank through the hydraulic pump, discharges the hydraulic oil through the hydraulic valve to the hydraulic cylinder and hydraulic motor, then passes through the hydraulic oil radiator one and the hydraulic oil radiator two, and finally returns to the hydraulic oil tank.

4. The thermal management system of the hybrid core drilling rig according to claim 1, characterized in that, The battery cooling circuit (2) is formed by passing cooling water through the cooler and the battery heat dissipation area via the battery circuit water pump; the cooler cooling circuit (3) is formed by connecting the compressor, the cooler and the battery heat dissipation area in sequence.

5. The thermal management system of the hybrid core drilling rig according to claim 1, characterized in that, The driver cooling circuit (4) forms a circuit by passing cooling water through the motor controller heat dissipation area and the motor controller heat sink via the motor controller water pump.

6. The thermal management system of the hybrid core drilling rig according to claim 2, characterized in that, The engine fan is connected to the engine and is directly driven by the engine.

7. The thermal management system of the hybrid core drilling rig according to claim 2, characterized in that, The hydraulic oil cooling system has the following operating modes: When the engine is working alone and the battery power system is not working, the engine fan rotates to cool the hydraulic oil cooler. When the battery power system is working alone and the engine is not working, the thermal management fan rotates to dissipate heat from the hydraulic oil radiator. When the engine and battery power system are working simultaneously, the engine fan and the thermal management fan rotate to dissipate heat from the hydraulic oil cooler and the hydraulic oil cooler, respectively.

8. The thermal management system of the hybrid core drilling rig according to claim 1, characterized in that, It also includes a water bottle with two outlets, one of which is connected to the battery cooling circuit (2) and the other outlet is connected to the driver cooling circuit (4).

9. A core drilling rig, characterized in that: The thermal management system includes the hybrid core drilling rig as described in any one of claims 1 to 8.

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