Oil temperature control assembly of hydraulic power-assisted steering system
By introducing an ATS radiator and temperature sensor into the hydraulic power steering system, combined with active control of the fan and output pump, the problem of unstable oil temperature cooling was solved, achieving stable operation and efficient cooling of the steering system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-03
AI Technical Summary
The oil temperature cooling method of existing hydraulic power steering systems is greatly affected by the environment, resulting in unstable operation of the steering system, especially in areas with large temperature differences where the effect varies significantly.
The system uses an ATS radiator, which achieves oil temperature control through coolant and oil circulation, combined with water-cooled piping and a fan. It also uses a temperature sensor and control module to regulate the speed of the fan and output pump, thus achieving active cooling.
It improves the operational stability of the steering system by actively regulating the circulation speed of coolant and oil, maintaining the oil temperature within a suitable range, and enhancing the cooling effect.
Smart Images
Figure CN224079414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of oil temperature cooling for steering systems, and in particular to an oil temperature control component for hydraulic power steering systems. Background Technology
[0002] Hydraulic power steering systems use pressure generated by a hydraulic pump driven by the car's engine or electric motor to steer the wheels under the driver's control. In the operation of hydraulic power steering systems in new energy electric vehicles, the oil temperature in the steering system will continuously rise over time. Excessively high oil temperatures will ultimately affect the stability of the steering system's operation.
[0003] Currently, existing oil temperature cooling methods primarily utilize heat exchange through metal pipes that transport coolant. These metal pipes are cooled by convective heat exchange with the air after being exposed to it. However, this cooling method is highly susceptible to environmental influences, especially in areas with large temperature differences. This results in variations in the cooling effect of the metal pipes, which in turn affects the heat exchange between the metal pipes and the hydraulic oil in the steering system. This can easily lead to instability in the steering system due to excessively high or low oil temperatures, affecting vehicle steering control. Utility Model Content
[0004] To address the above shortcomings, this utility model proposes a hydraulic power steering system oil temperature control component. By circulating coolant and oil through the ATS radiator, the oil temperature of the steering system is cooled using water-cooled pipes and a fan, which helps to improve the stability of the steering system operation.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A hydraulic power steering system oil temperature control component includes: an ATS radiator, wherein a fan is rotatably mounted on the ATS radiator; the ATS radiator has internal water-cooling pipes, oil pipes, and coolant pipes; the water-cooling pipes are used to connect to the vehicle's ATS cooling system; the oil pipes are used to connect to the vehicle's steering system to transport hydraulic oil; a portion of the coolant pipes is embedded within the water-cooling pipes; the coolant pipes are used to connect to a cooling circulation system for cooling the hydraulic oil; the cooling circulation system includes an output pump for delivering coolant to the coolant pipes; and a temperature sensor disposed on the ATS radiator, the temperature sensor being electrically connected to a control module; the control module being electrically connected to the fan and the output pump; when the temperature sensor detects that the temperature of the oil pipes is higher or lower than a set temperature threshold, the control module adjusts the speed of the fan and / or the impeller speed of the output pump.
[0007] The hydraulic power steering system oil temperature control component according to this utility model embodiment has at least the following beneficial effects: When the temperature sensor detects that the temperature of the oil pipeline is higher or lower than the set temperature threshold, the temperature sensor feeds back the signal to the control module, and the control module increases or decreases the fan speed and the impeller speed of the output pump. Both the coolant and oil circulate through the ATS radiator. By increasing the airflow speed within the ATS radiator, the fan actively cools the oil and coolant pipelines. Furthermore, by increasing the coolant circulation speed, the heat exchange efficiency between the coolant pipelines and oil pipelines outside the ATS radiator is improved, thereby helping to control the steering system oil temperature within a suitable temperature range and improving the stability of the steering system operation. The coolant pipeline and water-cooling pipeline are integrated, utilizing the water-cooling method of the ATS cooling system for further heat exchange and cooling of the coolant pipelines. This allows the coolant pipelines to circulate at a lower temperature, further improving the cooling effect of the steering system oil.
[0008] Furthermore, the ATS heatsink includes a first housing, the water-cooling pipes are built into the first housing, the first housing is bolted to a second housing, the fan is built into the second housing, and the fan's air outlet faces the water-cooling pipes.
[0009] Furthermore, the first housing is provided with a first liquid inlet and a first liquid outlet, the oil pipeline is connected between the first liquid inlet and the first liquid outlet, the temperature sensor is located on one side of the first liquid outlet, and the oil pipeline is distributed in a serpentine bend inside the first housing.
[0010] Furthermore, the first housing is provided with a second liquid inlet and a second liquid outlet, and the coolant pipeline is connected between the second liquid inlet and the second liquid outlet.
[0011] Furthermore, the water-cooled pipeline includes multiple parallel first pipes, and the coolant pipeline includes multiple parallel second pipes, with two adjacent second pipes embedded inside the corresponding first pipe.
[0012] Furthermore, the ATS cooling system also includes a multi-function controller, a motor controller, a drive motor, and a water pump. The multi-function controller, the motor controller, and the drive motor are all equipped with water inlets and outlets. The ATS radiator, the water pump, the multi-function controller, the motor controller, and the drive motor are connected in series to form a closed loop for water circulation.
[0013] Furthermore, the ATS cooling system includes an expansion tank, the ATS radiator is provided with an overflow port, the water cooling pipeline is connected to the overflow port through a pipeline, and the overflow port is connected to the expansion tank through a pipeline.
[0014] Furthermore, the steering system includes a steering gear, a reservoir, and an electric power steering pump connected via hydraulic lines, with the ATS radiator located between the steering gear and the reservoir.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the oil temperature control component of a hydraulic power steering system according to the present invention;
[0018] Figure 2 for Figure 1 Another structural diagram from another perspective;
[0019] Figure 3 for Figure 1 A schematic diagram of the internal structure;
[0020] Figure 4 for Figure 1 The embodiment, and the piping connection diagram of the ATS cooling system and steering system.
[0021] In the diagram: ATS radiator 100, first housing 101, second housing 102, first liquid inlet 103, first liquid outlet 104, second liquid inlet 105, second liquid outlet 106, overflow port 107, fan 110, water cooling pipe 120, oil pipe 130, temperature sensor 140. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0023] In the description of this utility model, it should be noted that the terms "inner", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] See Figures 1 to 4 A hydraulic power steering system oil temperature control component includes: an ATS radiator 100, a fan 110 rotatably mounted on the ATS radiator 100, and internally provided water-cooled pipes 120, oil pipes 130, and coolant pipes. The water-cooled pipes 120 are used to connect to the vehicle's ATS cooling system, the oil pipes 130 are used to connect to the vehicle's steering system to transport hydraulic oil, and a portion of the coolant pipes are embedded inside the water-cooled pipes 120. The coolant pipes are used to connect to a cooling circulation system for cooling the hydraulic oil, and the cooling circulation system includes an output pump for delivering coolant to the coolant pipes; a temperature sensor 140 is mounted on the ATS radiator 100, and the temperature sensor 140 is electrically connected to a control module. The control module is electrically connected to the fan 110 and the output pump. When the temperature sensor 140 detects that the temperature of the oil pipes 130 is higher or lower than a set temperature threshold, the control module adjusts the speed of the fan 110 and / or the impeller speed of the output pump.
[0027] In the hydraulic power steering system oil temperature control component described above, when the temperature sensor 140 detects that the temperature of the oil line 130 is higher or lower than a set temperature threshold, the temperature sensor 140 feeds a signal back to the control module. The control module then increases or decreases the speed of the fan 110 and the impeller speed of the output pump. Both coolant and oil circulate through the ATS radiator 100. By increasing the airflow speed within the ATS radiator 100, the fan 110 actively cools the oil line 130 and coolant line. Furthermore, by increasing the coolant circulation speed, the heat exchange efficiency between the coolant line and the oil line 130 outside the ATS radiator 100 is improved, thus helping to control the steering system oil temperature within a suitable range and improving the stability of the steering system operation. The coolant line and water-cooled line 120 are integrated, utilizing the water cooling method of the ATS cooling system to further cool the coolant line. This allows the coolant line to circulate at a lower temperature, further improving the cooling effect of the steering system oil.
[0028] Understandably, the high-temperature hydraulic oil in the steering system undergoes initial heat exchange and cooling through the coolant lines externally located in the ATS radiator 100. Subsequently, the hydraulic oil flows into the ATS radiator 100 through the oil line 130, and finally undergoes secondary cooling using the fan 110. The cooled coolant, after heat exchange, flows into the ATS radiator 100 through the coolant lines, and is cooled jointly by the fan 110 and the water-cooling lines 120.
[0029] See Figures 1 to 3 Furthermore, the ATS radiator 100 includes a first housing 101, with water-cooling pipes 120 housed within the first housing 101. A second housing 102 is bolted to the first housing 101, and a fan 110 is housed within the second housing 102, with the fan 110's exhaust port facing the water-cooling pipes 120. Specifically, the first housing 101 provides space for the installation of each pipe, which facilitates better convective heat exchange between the air blown by the fan 110 within the second housing 102 and the pipes, thus improving the cooling effect of the fan 110 on the pipes. It is understandable that the bolted connection facilitates subsequent disassembly of the second housing 102 for inspection and maintenance of the pipes within the first housing 101.
[0030] See Figures 1 to 3 Furthermore, the first housing 101 is provided with a first liquid inlet 103 and a first liquid outlet 104, and an oil pipeline 130 is connected between the first liquid inlet 103 and the first liquid outlet 104. A temperature sensor 140 is located on one side of the first liquid outlet 104. The oil pipeline 130 is distributed in a serpentine bend inside the first housing 101, thereby increasing the flow path of the oil and extending the cooling time of the oil.
[0031] See Figures 1 to 3 Furthermore, the first housing 101 is provided with a second liquid inlet 105 and a second liquid outlet 106, and the coolant pipeline is connected between the second liquid inlet 105 and the second liquid outlet 106, thereby facilitating the subsequent installation of the coolant pipeline inside the first housing 101.
[0032] Furthermore, the water-cooled pipe 120 includes multiple parallel first pipes, and the coolant pipe includes multiple parallel second pipes, with adjacent second pipes embedded inside the corresponding first pipe. Specifically, both the water-cooled pipe 120 and the coolant pipe are distributed in a serpentine pattern inside the first outer casing 101, with each first pipe enclosing two second pipes. This allows the water to exchange heat with the coolant pipe during its flow in the water-cooled pipe 120, which is beneficial for the coolant in the coolant pipe to circulate at a lower temperature.
[0033] See Figure 4 Furthermore, the ATS cooling system also includes a multi-function controller, a motor controller, a drive motor, and a water pump. Each of these components has an inlet and an outlet. The ATS radiator 100, water pump, multi-function controller, motor controller, and drive motor are connected in series to form a closed loop for water circulation. Specifically, since the multi-function controller, motor controller, and drive motor can experience overheating during operation, the circulation of water in the closed loop cools these components, helping to ensure that the various components of the electric vehicle's drive system operate at a relatively stable temperature. In addition, by integrating the oil lines 130 and coolant lines into the ATS radiator 100, the water circulation of the ATS cooling system facilitates the cooling of the steering system's oil and coolant, thereby improving the heat dissipation coordination between the various drive systems of the electric vehicle.
[0034] See Figure 4 Furthermore, the ATS cooling system includes an expansion tank, and the ATS radiator 100 is provided with an overflow port 107. The water cooling pipe 120 is connected to the overflow port 107 through a pipe, and the overflow port 107 is connected to the expansion tank through a pipe. Thus, the expansion tank stores excess water to balance the pressure changes of the ATS cooling system, and also allows for the replenishment of water to the ATS cooling system for circulation.
[0035] See Figure 4 Furthermore, the steering system includes a steering gear, a reservoir, and an electric power steering pump connected by hydraulic lines. The ATS radiator 100 is located between the steering gear and the reservoir, thereby improving the tightness of the coordination between the various cooling systems of the electric vehicle by using the ATS radiator 100 to cool the hydraulic oil and coolant of the steering system.
[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A hydraulic power steering system oil temperature control assembly, characterized by, The application relates to an ATS radiator (100) which is rotatably provided with a fan (110), the inside of the ATS radiator (100) is provided with a water cooling pipeline (120), an oil pipeline (130) and a cooling liquid pipeline, the water cooling pipeline (120) is used for connecting an ATS cooling system of a vehicle, the oil pipeline (130) is used for connecting a steering system of the vehicle to transport hydraulic oil, part of the cooling liquid pipeline is embedded in the inside of the water cooling pipeline (120), the cooling liquid pipeline is used for connecting a cooling circulation system of cooling liquid, and the cooling circulation system comprises an output pump for delivering cooling liquid to the cooling liquid pipeline. A temperature sensor (140) is arranged on the ATS radiator (100), the temperature sensor is electrically connected with a control module, the control module is electrically connected with the fan and the output pump, and when the temperature sensor detects that the temperature of the oil pipeline (130) is higher or lower than a set temperature threshold value, the control module adjusts the rotating speed of the fan and / or the rotating speed of an impeller of the output pump. The ATS radiator (100) comprises a first shell (101), the water cooling pipeline (120) is arranged in the first shell (101), the first shell (101) is connected with a second shell (102) through bolts, the fan (110) is arranged in the second shell (102), and the air outlet of the fan (110) faces the water cooling pipeline.
2. A hydraulic power steering system oil temperature control assembly as claimed in claim 1, wherein, The first shell (101) is provided with a first liquid inlet (103) and a first liquid outlet (104), the oil pipeline (130) is connected between the first liquid inlet (103) and the first liquid outlet (104), the temperature sensor (140) is arranged on one side of the first liquid outlet (104), and the oil pipeline (130) is arranged in a serpentine shape in the inside of the first shell (101).
3. A hydraulic power steering system oil temperature control assembly according to claim 2, wherein, The first shell (101) is provided with a second liquid inlet (105) and a second liquid outlet (106), and the cooling liquid pipeline is connected between the second liquid inlet (105) and the second liquid outlet (106).
4. The hydraulic power steering system oil temperature control assembly of claim 2, wherein, The water cooling pipeline (120) comprises a plurality of first pipelines which are parallel to each other, the cooling liquid pipeline comprises a plurality of second pipelines which are parallel to each other, and adjacent two second pipelines are embedded in the inside of corresponding first pipelines.
5. A hydraulic power steering system oil temperature control assembly as claimed in claim 4, wherein, The ATS cooling system further comprises a multi-in-one controller, a motor controller, a driving motor and a water pump, the multi-in-one controller, the motor controller and the driving motor are all provided with a water inlet and a water outlet, and the ATS radiator, the water pump, the multi-in-one controller, the motor controller and the driving motor are sequentially connected in series to form a closed loop which can be used for water circulation.
6. A hydraulic power steering system oil temperature control assembly as claimed in claim 1, wherein, The ATS cooling system comprises an expansion tank, the ATS radiator (100) is provided with an overflow port (107), the water cooling pipeline (120) is connected with the overflow port (107) through a pipeline, and the overflow port (107) is connected with the expansion tank through a pipeline.
7. A hydraulic power steering system oil temperature control assembly as claimed in claim 6, wherein, 8. The hydraulic power steering system oil temperature control assembly of claim 1, wherein, The steering system comprises a steering gear, an oil tank and an electric power-assisted pump connected by hydraulic pipelines, and the ATS radiator (100) is located between the steering gear and the oil tank.