Cooling water drainage system, vehicle and vehicle regulation method

Abstract

The application provides a cooling drainage system, a vehicle and a vehicle control method, and relates to the field of electric vehicles. The cooling drainage system comprises a first cooling drainage mechanism, a second cooling drainage mechanism and a third cooling drainage mechanism; the first cooling drainage mechanism comprises a radiator and a wet air reservoir; an input port of the radiator is in communication with an air compressor; an output port of the radiator is in communication with an inlet of the wet air reservoir; and the wet air reservoir is provided with a first drainage valve; an air inlet of a separator in the second cooling drainage mechanism is in communication with an outlet of the wet air reservoir; the separator is internally provided with a flow guide assembly and a collector; the flow guide assembly is in communication with the air inlet of the separator and the collector respectively; the third cooling drainage mechanism comprises a dryer and a regeneration cylinder; the dryer is in communication with an air outlet of the separator and the regeneration cylinder; and the regeneration cylinder is provided with a second drainage valve. The cooling drainage system provided by the application solves the technical problem that heat generated by air exhaust of an air compressor cannot be discharged in time.

Description

Technical Field

[0001] This application relates to the field of electric vehicles, and more specifically, to a cooling drainage system, a vehicle, and a vehicle control method. Background Technology

[0002] Pure electric vehicles are powered by batteries, and the lifespan of their braking system components is a key consideration in vehicle design. When the electric air compressor powers the entire braking system, it generates a significant amount of heat. If this heat cannot be dissipated in time, a large amount of condensation will form in the brake lines when the vehicle is stopped, affecting the lifespan of valves and air reservoirs, and causing severe corrosion of the entire vehicle's brake lines. Summary of the Invention

[0003] The purpose of this application is to provide a cooling drainage system, a vehicle, and a vehicle control method to alleviate the technical problem that the heat generated by the exhaust of the air compressor cannot be discharged in a timely manner in the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0005] In a first aspect, the cooling drainage system provided by the present invention is used to connect with an air compressor, and includes a first cooling drainage mechanism, a second cooling drainage mechanism and a third cooling drainage mechanism connected in sequence.

[0006] The first cooling drainage mechanism includes a radiator and a wet air storage tank. The inlet of the radiator is connected to the air compressor, the outlet of the radiator is connected to the inlet of the wet air storage tank, and the wet air storage tank is equipped with a first drain valve.

[0007] The second cooling drainage mechanism includes a separator, the air inlet of which is connected to the outlet of the wet air storage tank, and a flow guiding component and a collector are installed inside the separator, the flow guiding component being connected to the air inlet of the separator and the collector respectively;

[0008] The third cooling drainage mechanism includes a dryer and a regeneration cylinder. The dryer is connected to the air outlet of the separator and the regeneration cylinder. The regeneration cylinder is equipped with a second drain valve.

[0009] Furthermore, the radiator includes a heat dissipation pipe and a turbulence-disrupting structure, the inlet of the heat dissipation pipe is connected to the air compressor, and the outlet of the heat dissipation pipe is connected to the wet air storage tank;

[0010] The turbulence-disrupting structure is located inside the heat dissipation pipe.

[0011] Furthermore, the turbulence structure includes a spiral structure that extends axially along the heat dissipation pipe.

[0012] Furthermore, the heat dissipation pipe includes a starting section and a main section; the starting section is connected to the air compressor, one end of the main section is connected to the starting section, and the other end is connected to the wet air storage tank;

[0013] The pitch of the helical structure in the initial segment is greater than the pitch of the helical structure in the main segment.

[0014] Furthermore, the pitch of the spiral structure within the initial segment gradually increases from the end closest to the main body segment to the end furthest from the main body segment.

[0015] Furthermore, the spiral structure includes a spiral baffle plate, which is installed on the inner wall of the heat dissipation pipe.

[0016] Furthermore, the turbulence structure includes two sets of protruding structures, which are opposite to each other and staggered.

[0017] In each group of protruding structures, multiple protruding structures are spaced apart along the axial direction of the heat dissipation pipe.

[0018] Furthermore, at least one eddy current generator is installed on the heat dissipation pipe, and the vibration frequency of the eddy current generator is positively correlated with the fluid flow velocity inside the heat dissipation pipe.

[0019] Furthermore, the vortex generator is equipped with a temperature sensor for detecting the temperature of the fluid flowing through the vortex generator.

[0020] Furthermore, the radiator includes a heat sink, the heat pipes are installed in the heat sink, and the heat sink is provided with an air inlet.

[0021] Furthermore, the cooling drainage system also includes a motor cooling assembly, which includes cooling pipes that extend into the heat sink and exchange heat with the heat sink pipes.

[0022] Furthermore, the motor cooling assembly includes a controller, a pump body, a motor, and a carrier box, wherein the carrier box contains a cooling medium;

[0023] The cooling pipes are connected to the motor and the pump body;

[0024] The carrier box, the pump body, the controller, and the motor are connected in sequence.

[0025] In a second aspect, the vehicle provided by the present invention includes an air storage system, an air compressor, and a cooling drainage system as described in any of the preceding claims;

[0026] The air compressor is connected to the radiator in the cooling and drainage system, and the air storage system is connected to the dryer in the cooling and drainage system.

[0027] Furthermore, the air storage system includes a front brake air reservoir, an auxiliary air reservoir, a handbrake air reservoir, and a rear brake air reservoir, all of which are connected to the dryer.

[0028] Thirdly, the present invention provides a method for regulating a vehicle as described above. The vehicle includes a control chip, which is signal-connected to an air compressor, a first cooling mechanism, a second cooling mechanism, a third cooling mechanism, and an air storage system. The method includes: determining whether the vehicle is started; if so, determining whether the number of times the air compressor operates has reached the rated number and whether the wet air storage tank has reached the rated air pressure; if so, controlling the first drain valve and the second drain valve to open, and controlling the first drain valve and the second drain valve to close when a first preset time is reached.

[0029] Furthermore, when a command to start the vehicle is received, the first and second drain valves are opened, and when a second preset time is reached, the first and second drain valves are closed.

[0030] Furthermore, achieving the second preset time to control the closure of the first and second drain valves also includes:

[0031] When the third preset time is reached, the drain control valve of the gas storage system is opened, and when the fourth preset time is reached, the drain control valve is closed.

[0032] Based on the above technical solutions, the technical effects achievable by this invention can be analyzed as follows:

[0033] The cooling drainage system provided by this invention is used to connect with an air compressor, and includes a first cooling drainage mechanism, a second cooling drainage mechanism, and a third cooling drainage mechanism connected in sequence. The first cooling drainage mechanism includes a radiator and a wet air storage tank. The inlet of the radiator is connected to the air compressor, and the outlet of the radiator is connected to the inlet of the wet air storage tank. The wet air storage tank is equipped with a first drain valve. The second cooling drainage mechanism includes a separator. The inlet of the separator is connected to the outlet of the wet air storage tank. A flow guiding component and a collector are installed inside the separator. The flow guiding component is connected to the inlet of the separator and the collector, respectively. The third cooling drainage mechanism includes a dryer and a regeneration cylinder. The dryer is connected to the outlet of the separator and the regeneration cylinder. The regeneration cylinder is equipped with a second drain valve.

[0034] The first cooling and drainage mechanism is used to perform the initial cooling and drainage of the gas discharged from the air compressor. When the gas discharged from the air compressor flows through the radiator in the first cooling and drainage mechanism, the radiator carries away the heat generated by the air compressor exhaust. Then the gas flows through the wet air storage tank in the first cooling and drainage mechanism, which further carries away the heat generated by the air compressor exhaust, producing cooling water. The cooling water is stored in the wet air storage tank. The wet air storage tank is equipped with a first drain valve. When the first drain valve is opened, the cooling water stored in the wet air storage tank can be discharged, completing the initial cooling and drainage.

[0035] The second cooling and drainage mechanism is used for secondary cooling and drainage. Air flows into the separator from the inlet through the wet air reservoir. Inside the separator, the air flows from top to bottom, carrying away heat. Centrifugal force causes water and impurities to remain on the guide assembly. After flowing to the bottom of the separator, the air flows out from the outlet of the wet air reservoir. Heat is dissipated as the air flows; simultaneously, liquid water and oil condensed on the guide assembly flow into the collector at the bottom, completing the secondary cooling and drainage.

[0036] The third cooling and drainage mechanism is used for the third cooling and drainage. The cooling air flowing through the separator already contains a large amount of moisture. This cooling air flows into the dryer, where it filters impurities from the cooling air and absorbs moisture from the cooling cavity. When the dryer exhausts, the regeneration cylinder backflushes the moisture from the molecular sieve inside the dryer, thus regenerating the molecular sieve. The second drain valve of the regeneration cylinder can be opened to drain water. This completes the third cooling and drainage process and adds a drying function.

[0037] This cooling and drainage system enables three-stage cooling, three-stage drainage, and one-stage drying of compressed air, improving the braking system's ability to drain and cool its pipelines, preventing water accumulation and corrosion, and ensuring the service life of brake valves. Furthermore, the heat generated during air compressor exhaust is continuously carried away, preventing damage to high and low pressure pipelines and ensuring that the air compressor components are not damaged by water backflow from the pipelines. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the cooling drainage system provided in an embodiment of this application;

[0040] Figure 2 This is a schematic diagram of the vehicle structure provided in an embodiment of this application.

[0041] icon:

[0042] 1-Air compressor;

[0043] 21-Radiator; 211-Radiator tube; 212-Eddy current generator; 22-Wet air storage tank; 221-First drain valve;

[0044] 31-Separator;

[0045] 41-Dryer; 42-Regeneration cylinder;

[0046] 51-Controller; 52-Pump body; 53-Motor; 54-Carrier box;

[0047] 6- Hose assembly;

[0048] 71-Front brake air reservoir; 72-Auxiliary air reservoir; 73-Handbrake air reservoir; 74-Rear brake air reservoir; 75-Four-circuit protection valve. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] In the description of this application, it should be noted that the terms "inner" and "outer," 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 commonly used when the product is in use. They are used only for the convenience of describing this application and for 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 application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" 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 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 application based on the specific circumstances.

[0052] Example 1

[0053] Currently, pure electric buses powered by batteries are widely used in public transportation and tourist vehicles. The lifespan of components in the braking system of these electric buses is a significant concern. While the electric air compressor provides continuous power to the entire braking system, it also generates a large amount of heat. If this heat is not dissipated in time, a large amount of condensation will form in the pipelines when the vehicle is not running, affecting the lifespan of valves and air reservoirs. Currently, existing cooling and drainage systems have the following shortcomings: the heat generated by the air compressor exhaust cannot be dissipated in time, the braking pipelines suffer from severe corrosion, and the valves' lifespan is shortened.

[0054] In view of this, see Figure 1 The cooling drainage system provided in this embodiment of the invention is used to communicate with an air compressor 1, and includes a first cooling drainage mechanism, a second cooling drainage mechanism, and a third cooling drainage mechanism connected in sequence. The first cooling drainage mechanism includes a radiator 21 and a wet storage tank 22. The inlet of the radiator 21 is connected to the air compressor 1, and the outlet of the radiator 21 is connected to the inlet of the wet storage tank 22. The wet storage tank 22 is equipped with a first drain valve 221. The second cooling drainage mechanism includes a separator 31. The inlet of the separator 31 is connected to the outlet of the wet storage tank 22. The separator 31 is equipped with a flow guide component and a collector. The flow guide component is connected to the inlet of the separator 31 and the collector, respectively. The third cooling drainage mechanism includes a dryer 41 and a regeneration tank 42. The dryer 41 is connected to the outlet of the separator 31 and the regeneration tank 42. The regeneration tank 42 is equipped with a second drain valve.

[0055] Specifically, air compressor 1 includes an air compressor and an air pump, which are not limited here. Furthermore, the first drain valve 221 and the second drain valve are used to connect to the vehicle's control chip signal, enabling intelligent opening and closing of the first drain valve 221 and the second drain valve, improving the automation level of the cooling drainage system. Alternatively, the driver can manually control the opening and closing of the first drain valve 221 and the second drain valve.

[0056] The first cooling and drainage mechanism is used to perform the first cooling and drainage of the gas discharged from the air compressor 1. When the gas discharged from the air compressor 1 flows through the radiator 21 in the first cooling and drainage mechanism, the radiator 21 carries away the heat generated by the exhaust of the air compressor 1. Then the gas flows through the wet air storage tank 22 in the first cooling and drainage mechanism, so that the air storage tank further carries away the heat generated by the exhaust of the air compressor, generating cooling water. The cooling water is stored in the wet air storage tank 22. The wet air storage tank 22 is equipped with a first drain valve 221. When the first drain valve 221 is opened, the cooling water stored in the wet air storage tank 22 can be discharged, completing the first cooling and drainage.

[0057] The second cooling and drainage mechanism is used for secondary cooling and drainage. Air flows into the separator 31 through the wet air reservoir 22. Inside the separator 31, the air flows from top to bottom, carrying away heat. Centrifugal force causes water and impurities to remain on the guide assembly. After flowing to the bottom of the separator 31, the air flows out from the outlet of the wet air reservoir 22. Heat is dissipated during air flow; simultaneously, liquid water and oil condensed on the guide assembly flow into the collector at the bottom, completing the secondary cooling and drainage.

[0058] The third cooling and drainage mechanism is used for the third cooling and drainage. The cooling air flowing through the separator 31 already contains a large amount of moisture. This cooling air flows into the dryer 41, where the dryer 41 filters impurities from the cooling air and absorbs moisture from the cooling cavity. When the dryer 41 exhausts, the regeneration cylinder 42 backflushes the moisture from the molecular sieve inside the dryer 41, thus regenerating the molecular sieve. When the second drain valve of the regeneration cylinder 42 is opened, drainage can be performed. This completes the third cooling and drainage process and adds a drying function.

[0059] This cooling and drainage system can achieve three cooling cycles, three drainage cycles, and one drying of compressed air, which improves the cooling capacity of the braking system pipeline, avoids corrosion caused by water accumulation in the pipeline, and ensures the service life of the braking valves. In addition, the heat from the exhaust of the air compressor 1 is continuously carried away, preventing damage to the high and low pressure pipelines and ensuring that the air compressor 1 will not be damaged by water backflow in the pipeline.

[0060] The structure of the cooling drainage system is described in detail below:

[0061] In the optional solution provided by the embodiment of the present invention, the radiator 21 includes a heat dissipation pipe 211 and a turbulence structure. The inlet of the heat dissipation pipe 211 is connected to the air compressor 1, and the outlet of the heat dissipation pipe 211 is connected to the wet air storage tank 22. The turbulence structure is located inside the heat dissipation pipe 211.

[0062] Specifically, the heat dissipation pipe 211 can be made of copper or steel, and its cross-section is annular. In this embodiment, the length of the heat dissipation pipe 211 is greater than or equal to 3 meters. The turbulence structure is located inside the heat dissipation pipe 211, making the fluid flowing through the heat dissipation pipe 211 turbulent, thereby improving the cooling effect. Turbulence refers to chaotic gas flow containing vortices, resulting in high energy dissipation.

[0063] The radiator 21 is equipped with a heat dissipation pipe 211, which is connected to the air compressor 1 and the wet air storage tank 22 respectively. It is used to deliver the gas output from the air compressor 1 into the wet air storage tank 22 and to perform preliminary cooling on the gas. The turbulence structure is located inside the heat dissipation pipe 211 to extend the gas flow path and increase the turbulence intensity, thereby improving the cooling effect.

[0064] In the optional solution provided by the embodiments of the present invention, the turbulence structure includes a spiral structure, which extends along the axial direction of the heat dissipation pipe 211.

[0065] Specifically, the spiral structure is located inside the heat sink 211, causing the gas flowing through the heat sink 211 to flow along the spiral surface of the spiral structure, thus extending the flow path of the gas within the heat sink 211.

[0066] The threaded structure, located inside heat pipe 211, extends the gas flow path and increases turbulence intensity, raising the Reynolds number Re from 2000 to 5000, thus improving cooling performance. The Reynolds number is a core dimensionless parameter in fluid mechanics, used to quantify the relative importance of inertial and viscous forces in fluid flow. A higher Reynolds number indicates more significant inertial forces, leading to turbulent flow; conversely, a lower Reynolds number indicates that viscous forces dominate, resulting in more stable flow.

[0067] In the optional solution provided by the embodiments of the present invention, the ratio 'a' of the pitch of the spiral structure to the inner diameter of the heat sink 211 is set to 5-7.

[0068] Specifically, the pitch of the helical structure refers to the distance between two adjacent threads measured along the helix. The ratio 'a' of the pitch of the helical structure to the inner diameter of the heat sink 211 is set to 5, 6, or 7, etc.; of course, setting 'a' to other values ​​should also be within the protection scope of this embodiment. Preferably, in this embodiment, the inner diameter of the heat sink 211 is set to 20mm; compared with the copper tube with an inner diameter of 16mm in the prior art, the inner diameter of the heat sink 211 is increased, thereby increasing the gas flow rate per unit time.

[0069] The ratio 'a' of the pitch of the spiral structure to the inner diameter of the heat sink 211 is set to 5, 6, or 7 to balance flow resistance and turbulence intensity.

[0070] In the optional solution provided by the embodiments of the present invention, the ratio b of the height of the spiral structure protruding from the inner wall of the heat sink 211 to the inner diameter of the heat sink 211 is set to 0.14-0.16.

[0071] Specifically, the height of the spiral structure protruding from the inner wall of the heat sink 211 refers to the distance between the end of the spiral structure and the inner wall of the heat sink 211. The ratio b of the height of the spiral structure protruding from the inner wall of the heat sink 211 to the inner diameter of the heat sink 211 is set to 0.14, 0.15, or 0.16; of course, setting b to other values ​​should also be within the protection scope of this embodiment. In this embodiment, the height of the spiral structure protruding from the inner wall of the heat sink 211 is taken as 15% of the inner diameter of the heat sink 211, set to 3mm, to ensure sufficient boundary layer destruction and controllable pressure drop.

[0072] In the optional solution provided by the embodiments of the present invention, the heat dissipation pipe 211 includes a starting section and a main section; the starting section is connected to the air compressor 1, one end of the main section is connected to the starting section, and the other end is connected to the wet air storage cylinder 22; the pitch of the spiral structure in the starting section is greater than the pitch of the spiral structure in the main section.

[0073] Specifically, the starting section is located on one side of the inlet of the heat dissipation pipe 211 and is used to connect with the air compressor 1.

[0074] The gas velocity at the inlet of heat pipe 211 is usually high, and a larger initial pitch can reduce the initial pressure drop; as the velocity gradually decreases due to resistance, the pitch decreases synchronously to maintain continuous turbulence intensity.

[0075] In the optional solution provided by the embodiments of the present invention, the pitch of the spiral structure in the starting segment gradually increases from the end closer to the main body segment to the end farther away from the main body segment.

[0076] The gradually changing pitch design of the spiral structure in the initial section can avoid sudden changes in flow velocity, prevent excessive local eddies or pressure drops, and make the gas velocity distribution more uniform by gradually increasing the flow resistance, thus avoiding heat transfer dead zones caused by uneven flow velocity.

[0077] In one embodiment, the spiral structure includes spiral baffles, which are mounted on the inner wall of the heat sink 211.

[0078] Specifically, the spiral baffle is made of stainless steel sheet and is laser-welded to the inner wall of the heat sink 211, with a temperature resistance of ≥200℃; the spiral baffle is continuously spirally arranged along the axial direction of the heat sink 211. Furthermore, the thickness of the stainless steel sheet is set to 1mm; of course, other thicknesses of the stainless steel sheet should also be within the protection scope of this embodiment.

[0079] The spiral baffle is welded to the inner wall of the heat sink 211, so that the spiral structure is located inside the heat sink 211, thereby delaying the gas flow path.

[0080] In another embodiment, the spiral structure includes a spiral protrusion that is integrally formed with the inner wall of the heat sink 211.

[0081] In the optional solution provided by the embodiments of the present invention, the turbulence structure includes two sets of protruding structures, which are arranged opposite to each other and staggered; the multiple protruding structures in each set are arranged at intervals along the axial direction of the heat dissipation pipe 211.

[0082] Specifically, the protrusion mechanism protrudes from the inner wall of the heat sink 211 into the interior of the heat sink 211; the two sets of protrusion structures are opposite and staggered, meaning that the gap between one protrusion structure in one set and the two adjacent protrusion structures in the other set are opposite.

[0083] The raised structure increases the surface area of ​​the heat sink 211, thereby increasing the heat exchange area between the gas and the heat sink 211 and enhancing the cooling effect. In addition, the opposite and staggered arrangement of the two sets of raised structures extends the gas flow path and further enhances the cooling effect.

[0084] In an optional embodiment of the present invention, fins are installed on the outer wall of the heat dissipation pipe 211.

[0085] The fins can increase the surface area of ​​the heat sink 211, increase the heat exchange area, and thus improve the cooling efficiency.

[0086] In an optional embodiment of the present invention, the first drain valve 221 is installed at the bottom of the wet gas storage tank 22.

[0087] Specifically, the wet gas storage cylinder 22 has an inlet and an outlet on its two opposite side walls, and a first drain valve 221 is installed on its bottom wall. The inlet is positioned lower than the outlet; or, the inlet and outlet are opposite each other. The heat dissipation pipe 211 extends into the interior of the wet gas storage cylinder 22 from the inlet and bends downward, so that the end of the heat dissipation pipe 211 faces the bottom wall of the wet gas storage cylinder 22. This allows the fluid flowing out of the heat dissipation pipe 211, including water and gas, to flow towards the bottom wall of the wet gas storage cylinder 22, preventing gas carrying water from overflowing directly from the outlet of the wet gas storage cylinder. Furthermore, the first drain valve 221 is located in the middle of the bottom wall of the wet gas storage cylinder 22, and the bottom wall of the wet gas storage cylinder 22 is a slope that gradually slopes downward from the outer edge to the middle. Preferably, a sealing element, such as a sealing ring, is installed between the heat dissipation pipe 211 and the side wall of the wet gas storage cylinder 22 to fill the gap between the heat dissipation pipe 211 and the inlet, improving the sealing performance.

[0088] The first drain valve 221 is installed at the bottom of the wet gas storage tank 22 to facilitate drainage.

[0089] In an optional embodiment of the present invention, at least one eddy current generator 212 is installed on the heat sink 211, and the vibration frequency of the eddy current generator 212 is positively correlated with the fluid flow velocity inside the heat sink 211.

[0090] Specifically, the vortex generator 212 is piezoelectrically driven and its frequency is adjustable to adapt to different flow rates. Furthermore, the vortex generator 212 employs a diamond-shaped vane array: its dimensions are set to 5*5*0.5mm, and it is embedded in the inner wall of the heat sink 211 using MESMS technology. PZT-5A piezoelectric ceramic sheets (3*3*0.2mm in size) are used, bonded inside the vanes, with a driving voltage of 0-60V, and arranged in S-shaped or spiral gaps. Preferably, two vortex generators 212 are installed at intervals along the axial direction of the heat sink 211. Each vortex generator 212 is equipped with a temperature sensor to detect the temperature of the fluid flowing through it. The vortex generator 212 uses frequency adaptive control, and its driving logic includes a basic mode and an enhanced mode. In the basic mode, the vibration frequency is dynamically adjusted according to the flow rate; specifically, the vibration frequency increases when the flow rate increases. Enhanced mode: When the temperature sensor detects local overheating (e.g., >100℃), a high-frequency pulse (f=200-500HZ) is triggered. The control circuit uses a digital power amplifier chip to drive the voltage chip, supporting PWM (Pulse Width Modulation) frequency modulation, with power consumption <10W / m.

[0091] The cooling and drainage system adopts a composite turbulence excitation, with the combined effect of spiral baffles (passive) and piezoelectric micro eddies (active), breaking through the limits of traditional passive heat dissipation. It features adaptive intelligent control and dynamic frequency adjustment based on flow rate-temperature feedback to achieve optimal energy efficiency.

[0092] In the optional solution provided by the embodiments of the present invention, the radiator 21 includes a heat dissipation box, the heat dissipation pipe 211 is installed in the heat dissipation box, and the heat dissipation box is provided with an air inlet.

[0093] Specifically, the circulating natural air can enter the heat sink through the air inlet and exchange heat with the heat sink 211 to remove the heat from the heat sink 211.

[0094] The heat sink provides support and fixation for the heat pipe 211.

[0095] In the optional solution provided by the embodiments of the present invention, the cooling drainage system further includes a motor cooling assembly, which includes cooling pipes that extend into the heat sink and exchange heat with the heat sink 211.

[0096] Specifically, the outer wall of the cooling pipe is attached to the outer wall of the heat dissipation pipe 211 to increase the contact area between the two and increase the heat exchange efficiency.

[0097] The cooling pipes improve the cooling effect on the fluid inside the heat sink 211.

[0098] In the optional solution provided by the embodiments of the present invention, the motor cooling assembly includes a controller 51, a pump body 52, a motor 53, and a carrier box 54, the carrier box 54 containing a cooling medium; the cooling pipe is connected to the motor 53 and the pump body 52; the carrier box 54, the pump body 52, the controller 51, and the motor 53 are connected in sequence.

[0099] Specifically, see Figure 1 , Figure 1 The middle arrow indicates the flow direction of the cooling medium; the cooling medium is set as coolant, which enters the circulation pipeline through the carrier tank 54, and enters the controller 51 and motor 53 under the drive of the pump body 52. ​​Finally, the coolant enters the cooling pipeline to cool the heat dissipation pipe 211. The pump body 52 is set as a water pump.

[0100] The cooling and drainage system is integrated with the motor 53 cooling system to ensure the normal operation of the motor 53 cooling system.

[0101] In the optional solution provided by the embodiments of the present invention, a flexible hose assembly 6 is installed between the air compressor 1 and the heat dissipation pipe 211.

[0102] Specifically, the hose assembly 6 is resistant to high temperature and high pressure.

[0103] The air compressor 1 vibrates during operation. The air compressor 1 and the heat pipe 211 are connected by the hose assembly 6 to reduce the vibration caused by gas transmission.

[0104] In the optional solution provided by the embodiments of the present invention, the air inlet of the separator 31 is located on the side wall of the separator 31, and the air outlet is located at the top of the separator 31.

[0105] Specifically, the flow guiding assembly includes a guide plate and a spiral track, with the end of the guide plate connected to the spiral track. A large volume of air passing through the wet air reservoir 22 passes through the separator 31, with compressed air flowing in through the air inlet on the side of the separator 31. Inside the separator 31, hot air flows downwards within the spiral space, carrying away a significant amount of heat. Centrifugal force helps retain water and impurities on the guide plate. After reaching the bottom of the spiral track, the compressed air flows out through a vertically upward channel and through the outlet at the top. Airflow and heat dissipation occur simultaneously, while liquid water and oil condensed on the guide plate flow downwards through the spiral pipe and through a filter screen into a collector at the bottom; the filter screen prevents impurities from flowing into the collector.

[0106] The separator 31 discharges cooling air through the air outlet and guides water to the collector through the flow guiding component.

[0107] The following is a detailed description of the cooling drainage system process:

[0108] As air from air compressor 1 passes through radiator pipe 211, circulating air continuously enters the radiator 21, and coolant continuously flows into the cooling pipes, carrying away heat from the radiator pipe 211. After passing through the wet air reservoir 22, the temperature gradually decreases, generating a large amount of cooling water, which is stored in the wet air reservoir 22. The wet air reservoir 22 is equipped with a first drain valve 221, which activates when air compressor 1 stops or starts operating, draining a large amount of water. Alternatively, the operator can manually press the button on the first drain valve 221 to drain the water. This constitutes the first cooling and drainage process of the cooling and drainage system.

[0109] A large volume of air passing through the wet air reservoir 22 passes through the separator 31, with compressed air flowing in through the air inlet on the side of the separator 31. Inside the separator 31, hot air flows downwards in a spiral space, carrying away a significant amount of heat. Centrifugal force helps retain water and impurities on the guide plates. After flowing to the bottom of the spiral track, the compressed air exits through a vertically upward channel and the outlet at the top. Airflow dissipates heat, while condensed liquid water and oil on the guide plates flow downwards through the spiral pipe and a filter screen into the bottom collector. This is the second cooling and drainage process of the cooling drainage system.

[0110] After passing through separator 31, the cooled air already contains a significant amount of moisture. Dryer 41 is then needed to filter impurities and absorb the moisture from the gas. In the entire braking system circuit, once the gas reaches its rated pressure (as described below), dryer 41 exhausts gas. At this point, regeneration cylinder 42 backflushes the molecular sieve inside the drying cylinder to regenerate the molecular sieve. This is the third cooling and drainage process in the cooling and drainage system, which also adds a drying function.

[0111] Example 2

[0112] The vehicle provided in this embodiment of the invention includes the cooling and drainage system described in Embodiment 1, and therefore also possesses all the beneficial effects of Embodiment 1, which will not be repeated here.

[0113] In the optional solution provided by the embodiments of the present invention, the vehicle includes an air storage system and an air compressor 1; the air compressor 1 is connected to the radiator 21 in the cooling drainage system, and the air storage system is connected to the dryer 41 in the cooling drainage system.

[0114] Specifically, see Figure 2 , Figure 2For vehicles equipped with a cooling and drainage system, the air storage system includes a front brake air reservoir 71, an auxiliary air reservoir 72, a handbrake air reservoir 73, and a rear brake air reservoir 74, all of which are connected to the dryer 41. Furthermore, the vehicle includes a four-circuit protection valve 75, which is installed between the air storage system and the dryer 41.

[0115] After undergoing three drainage cycles, three cooling cycles, and one drying cycle of compressed air, the air compressor 1 provides an air source for the vehicle's air reservoir via a four-circuit protection valve 75. This improves the performance of the vehicle's braking system, and no pipe or valve corrosion occurs after the vehicle has been running for a long time.

[0116] Example 3

[0117] This invention provides a method for controlling a vehicle as described in Embodiment 2.

[0118] In an optional embodiment of the present invention, the vehicle includes a control chip, which is signal-connected to an air compressor 1, a first cooling mechanism, a second cooling mechanism, a third cooling mechanism, and an air storage system. The driver can operate the control chip from the driver's cab.

[0119] Vehicle control methods include:

[0120] S100: Determine whether the vehicle is started; if so, determine whether the number of times the air compressor 1 operates has reached the rated number, or whether the wet air tank 22 has reached the rated air pressure; if so, control the first drain valve 221 and the second drain valve to open, and control the first drain valve 221 and the second drain valve to close when the first preset time is reached.

[0121] Specifically, in this embodiment, the rated number of cycles is set to three, the rated air pressure is set to 0.8 bar, and the first preset time is set to 3 seconds. Vehicle drainage VCU19 pin high level: The air pump operates for the third time. When the air pressure in the wet air tank 22 reaches 0.8 bar, drainage begins, with each drainage cycle lasting 3 seconds. This cycle repeats in the above manner.

[0122] During operation, the opening of the first drain valve 221 and the second drain valve are controlled according to the pressure inside the wet air storage tank 22 and the number of times the air pump operates, so as to achieve automatic control.

[0123] In an optional solution provided by the embodiments of the present invention, when a command to start the vehicle is received, the first drain valve 221 and the second drain valve are controlled to open, and when a second preset time is reached, the first drain valve 221 and the second drain valve are controlled to close.

[0124] Specifically, the second preset time is shorter than the first preset time. In this embodiment, the second preset time is set to 1 second. Power-down drainage: The VCU19 pin of the vehicle is at a high level after power-down from the ON position, and drainage continues for 1 second.

[0125] Drain water when starting the vehicle.

[0126] In the optional solution provided by the embodiments of the present invention, controlling the first drain valve 221 and the second drain valve to close after reaching the second preset time further includes: controlling the drain control valve of the gas storage system to open after reaching the third preset time, and controlling the drain control valve to close after reaching the fourth preset time.

[0127] Specifically, when the VCU74 pin of the vehicle is at a high level: after the on position is powered off, the VCU19 pin of the vehicle first drains water for 1 second, and then after a 1 second interval, the VCU74 pin of the vehicle drains water for 1 second.

[0128] After starting the vehicle, the gas storage system drains water.

[0129] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0130] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cooling drainage system for communicating with an air compressor (1), characterized in that, The application relates to a cooling and drainage mechanism for an air compressor. The cooling and drainage mechanism comprises a first cooling and drainage mechanism, a second cooling and drainage mechanism and a third cooling and drainage mechanism which are sequentially connected; The first cooling and drainage mechanism comprises a radiator (21) and a wet air reservoir (22), the input port of the radiator (21) is connected with the air compressor (1), the output port of the radiator (21) is connected with the inlet of the wet air reservoir (22), and the wet air reservoir (22) is provided with a first drainage valve (221); The second cooling and drainage mechanism comprises a separator (31), the air inlet of the separator (31) is connected with the outlet of the wet air reservoir (22), the separator (31) is internally provided with a flow guide assembly and a collector, and the flow guide assembly is connected with the air inlet of the separator (31) and the collector respectively; The third cooling and drainage mechanism comprises a dryer (41) and a regeneration cylinder (42), the dryer (41) is connected with the air outlet of the separator (31) and the regeneration cylinder (42), and the regeneration cylinder (42) is provided with a second drainage valve; The radiator (21) comprises a radiator pipe (211) and a turbulence structure, the input port of the radiator pipe (211) is connected with the air compressor (1), and the output port of the radiator pipe (211) is connected with the wet air reservoir (22); The turbulence structure is arranged in the radiator pipe (211); The turbulence structure comprises a spiral structure which extends along the axial direction of the radiator pipe (211); The radiator pipe (211) comprises a starting section and a main section, the starting section is connected with the air compressor (1), one end of the main section is connected with the starting section, and the other end is connected with the wet air reservoir (22); The pitch of the spiral structure in the starting section is greater than the pitch of the spiral structure in the main section; The ratio of the pitch of the spiral structure to the inner diameter of the radiator pipe is 5-7, and the ratio of the height of the spiral structure protruding from the inner wall of the radiator pipe to the inner diameter of the radiator pipe is 0.14-0.16, At least one vortex generator (212) is arranged on the radiator pipe (211), and the vibration frequency of the vortex generator (212) is positively correlated with the flow speed of the fluid in the radiator pipe (211).

2. The cooling water drainage system according to claim 1, characterized in that, The pitch of the spiral structure in the starting section gradually increases from the end close to the main section to the end far from the main section.

3. Cooling water drainage system according to claim 1 or 2, characterized in that The spiral structure comprises spiral turbulence fins which are arranged on the inner wall of the radiator pipe (211).

4. The cooling water drainage system of claim 1, wherein, The turbulence structure comprises two groups of protruding structures which are opposite to each other and are arranged in a staggered mode; The multiple protruding structures in each group of the protruding structures are arranged in the axial direction of the radiator pipe (211) in a spaced mode.

5. The cooling water drainage system of claim 1, wherein, The vortex generator (212) is provided with a temperature sensor which is used for detecting the temperature of the fluid flowing in the vortex generator (212).

6. The cooling water drainage system of claim 1, wherein, The radiator (21) comprises a radiator box, the radiator pipe (211) is arranged on the radiator box, and the radiator box is provided with an air inlet.

7. The cooling water drainage system according to claim 6, wherein The cooling drainage system further comprises a motor cooling assembly, the motor cooling assembly comprising a cooling pipeline, the cooling pipeline extending into the heat dissipation box and performing heat exchange with the heat dissipation pipe (211).

8. The cooling water drainage system according to claim 7, wherein The motor cooling assembly comprises a controller (51), a pump body (52), a motor (53) and a bearing box (54), the bearing box (54) bearing a cooling medium; The cooling pipeline is in communication with the motor (53) and the pump body (52); The bearing box (54), the pump body (52), the controller (51) and the motor (53) are in communication in sequence.

9. A vehicle characterized by comprising: The vehicle further comprises a gas storage system, an air compressor (1) and the cooling drainage system according to any one of claims 1-8. The air compressor (1) is in communication with the heat sink (21) in the cooling drainage system, and the gas storage system is in communication with the dryer (41) in the cooling drainage system.

10. The vehicle of claim 9, wherein, The gas storage system comprises a front brake gas cylinder (71), an auxiliary gas cylinder (72), a hand brake gas cylinder (73) and a rear brake gas cylinder (74), the front brake gas cylinder (71), the auxiliary gas cylinder (72), the hand brake gas cylinder (73) and the rear brake gas cylinder (74) being in communication with the dryer (41).

11. A method of regulating a vehicle as claimed in claim 10, characterised by, The vehicle comprises a control chip, the control chip being in signal connection with the air compressor (1), the first cooling mechanism, the second cooling mechanism, the third cooling mechanism and the gas storage system, and the method comprises: If the vehicle is started, it is determined whether the working frequency of the air compressor (1) reaches a rated frequency or whether the wet gas cylinder (22) reaches a rated gas pressure, and if so, the first drainage valve (221) and the second drainage valve are controlled to be opened, and when a first preset time is reached, the first drainage valve (221) and the second drainage valve are controlled to be closed.

12. The method of claim 11, wherein, When receiving an instruction to start the vehicle, the first drainage valve (221) and the second drainage valve are controlled to be opened, and when a second preset time is reached, the first drainage valve (221) and the second drainage valve are controlled to be closed.

13. The method of claim 12, wherein, The first drainage valve (221) and the second drainage valve are controlled to be closed when the second preset time is reached, further comprising: When a third preset time is reached, the drainage control valve of the gas storage system is controlled to be opened, and when a fourth preset time is reached, the drainage control valve is controlled to be closed.

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