Cooling and drainage system, vehicle and vehicle regulation and control method

Abstract

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

Description

Technical Field

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

[0002] A pure electric vehicle is a vehicle powered by a power battery, and the service life of the components used in its braking system is a key consideration in vehicle design. When an electric air compressor provides power for the entire braking system, a large amount of heat is generated; if the heat cannot be removed in time, when the vehicle stops running, a large amount of condensed water will be generated in the braking pipeline, affecting the service life of valves and air storage tanks, and causing serious corrosion of the vehicle's braking pipeline. Summary of the Invention

[0003] The purpose of the embodiments of this application is to provide a cooling and 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 in the prior art cannot be discharged in time.

[0004] To solve the above technical problems, the technical solutions provided by the present invention are as follows: In a first aspect, the cooling and drainage system provided by the present invention is used to communicate with an air compressor, and includes a first cooling and drainage mechanism, a second cooling and drainage mechanism, and a third cooling and drainage mechanism that are connected in sequence; The first cooling and drainage mechanism includes a radiator and a wet air storage tank. The input port of the radiator is communicated with the air compressor, the output port of the radiator is communicated with the inlet of the wet air storage tank, and a first drainage valve is installed on the wet air storage tank; The second cooling and drainage mechanism includes a separator. The air inlet of the separator is communicated with the outlet of the wet air storage tank. A flow guiding component and a collector are installed inside the separator, and the flow guiding component is respectively communicated with the air inlet of the separator and the collector; The third cooling and drainage mechanism includes a dryer and a regeneration cylinder. The dryer is communicated with the outlet of the separator and the regeneration cylinder, and a second drainage valve is installed on the regeneration cylinder.

[0005] Furthermore, the radiator includes heat dissipation tubes and a flow disturbing structure. The input port of the heat dissipation tubes is communicated with the air compressor, and the output port of the heat dissipation tubes is communicated with the wet air storage tank; The flow disturbing structure is located inside the heat dissipation tubes.

[0006] Furthermore, the flow disturbing structure includes a spiral structure, and the spiral structure extends along the axial direction of the heat dissipation tubes.

[0007] Furthermore, the heat dissipation pipe includes a starting section and a main body section; the starting section is communicated with the air compressor, one end of the main body section is connected to the starting section, and the other end is communicated with the wet air storage cylinder; The pitch of the spiral structure in the starting section is greater than the pitch of the spiral structure in the main body section.

[0008] Furthermore, the pitch of the spiral structure in the starting section gradually increases from the end close to the main body section to the end far from the main body section.

[0009] Furthermore, the spiral structure includes spiral turbulators, and the spiral turbulators are installed on the inner wall of the heat dissipation pipe.

[0010] Furthermore, the turbulator structure includes two sets of protrusion structures, and the two sets of protrusion structures are arranged opposite to each other and offset; A plurality of protrusion structures in each set of protrusion structures are arranged at intervals along the axial direction of the heat dissipation pipe.

[0011] 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 in the heat dissipation pipe.

[0012] Furthermore, a temperature sensor is installed on the eddy current generator, and the temperature sensor is used to detect the temperature of the fluid flowing through the eddy current generator.

[0013] Furthermore, the radiator includes a heat dissipation box, the heat dissipation pipe is installed in the heat dissipation box, and the heat dissipation box is provided with an air inlet.

[0014] Furthermore, the cooling and drainage system further includes a motor cooling component, the motor cooling component includes a cooling pipeline, and the cooling pipeline extends into the heat dissipation box and exchanges heat with the heat dissipation pipe.

[0015] Furthermore, the motor cooling component includes a controller, a pump body, a motor and a bearing box, and a cooling medium is carried in the bearing box; The cooling pipeline is communicated with the motor and the pump body; The bearing box, the pump body, the controller and the motor are communicated in sequence.

[0016] In a second aspect, the vehicle provided by the present invention includes an air storage system, an air compressor and the cooling and drainage system as described in any one of the above; The air compressor is communicated with the radiator in the cooling and drainage system, and the air storage system is communicated with the dryer in the cooling and drainage system.

[0017] Further, the air storage system includes a front brake air storage cylinder, an auxiliary air storage cylinder, a handbrake air storage cylinder, and a rear brake air storage cylinder, and the front brake air storage cylinder, the auxiliary air storage cylinder, the handbrake air storage cylinder, and the rear brake air storage cylinder are all communicated with the dryer.

[0018] In a third aspect, the present invention provides a method for controlling a vehicle as described above. The vehicle includes a control chip, and the control chip 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 working times of the air compressor reach the rated times and whether the wet air storage cylinder reaches 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 the first preset time is reached.

[0019] Further, when receiving an instruction to start the vehicle, 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 the second preset time is reached.

[0020] Further, controlling the first drain valve and the second drain valve to close when the second preset time is reached further includes: When the third preset time is reached, controlling the drain control valve of the air storage system to open, and controlling the drain control valve to close when the fourth preset time is reached.

[0021] Based on the above technical solutions, the technical effects that the present invention can achieve are analyzed as follows: The cooling and drainage system provided by the present invention is used to communicate with an air compressor, and includes a first cooling and drainage mechanism, a second cooling and drainage mechanism, and a third cooling and drainage mechanism that are sequentially communicated; the first cooling and drainage mechanism includes a radiator and a wet air storage cylinder. The input port of the radiator is communicated with the air compressor, the output port of the radiator is communicated with the inlet of the wet air storage cylinder, and the wet air storage cylinder is provided with a first drain valve; the second cooling and drainage mechanism includes a separator. The air inlet of the separator is communicated with the outlet of the wet air storage cylinder, and a flow guiding component and a collector are installed inside the separator. The flow guiding component is respectively communicated with the air inlet of the separator and the collector; the third cooling and drainage mechanism includes a dryer and a regeneration cylinder. The dryer is communicated with the air outlet of the separator and the regeneration cylinder, and the regeneration cylinder is provided with a second drain valve.

[0022] The first cooling and drainage mechanism is used for the first cooling and drainage of the gas discharged by the air compressor; when the gas discharged by the air compressor flows through the radiator in the first cooling and drainage mechanism, the radiator takes away the heat generated by the air compressor exhaust; then the gas flows through the wet air storage cylinder in the first cooling and drainage mechanism, so that the air storage cylinder further takes away the heat generated by the air compressor exhaust, generating cooling water; the cooling water is stored in the wet air storage cylinder; the wet air storage cylinder is equipped with a first drain valve, and when the first drain valve is opened, the cooling water stored in the wet air storage cylinder can be discharged, completing the first cooling and drainage.

[0023] The second cooling and drainage mechanism is used for the second cooling and drainage; the air passing through the wet air storage cylinder flows into the inlet of the separator; inside the separator, the air flows from top to bottom inside the separator, and the heat is taken away; the centrifugal force can make water and impurities stay on the diversion component; after the air flows to the bottom of the separator, it flows out from the air outlet of the wet air storage cylinder. When the air flows, heat is dissipated; at the same time, the liquid water and oil stains condensed on the diversion component flow into the collector at the bottom, completing the second cooling and drainage.

[0024] 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, and this cooling air flows into the dryer. The dryer filters the impurities in the cooling air and absorbs the moisture in the cooling cavity; when the dryer exhausts, the regeneration cylinder blows the moisture in the molecular sieve in the dryer to regenerate the molecular sieve; when the second drain valve of the regeneration cylinder is opened, drainage can be carried out; the third cooling and drainage is completed, and the function of drying is increased.

[0025] This cooling and drainage system can achieve three times of cooling, three times of drainage and one time of drying compressed air, improving the drainage and cooling ability of the brake system pipeline, avoiding rust caused by pipeline water accumulation, and ensuring the service life of brake valve types; and, the heat generated when the air compressor exhausts is continuously taken away, avoiding burning the high and low pressure pipelines, and ensuring that the air compressor will not be damaged due to the backflow of water in the pipeline to the air compressor components. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of the cooling and drainage system provided by the embodiment of the present application; Figure 2 It is a schematic structural diagram of the vehicle provided by the embodiment of the present application.

[0028] Icon: 1 - Air compressor; 21 - Radiator; 211 - Cooling pipe; 212 - Vortex generator; 22 - Wet air storage tank; 221 - First drain valve; 31 - Separator; 41 - Dryer; 42 - Regeneration cylinder; 51 - Controller; 52 - Pump body; 53 - Motor; 54 - Carrying box; 6 - Hose assembly; 71 - Front brake air storage tank; 72 - Auxiliary air storage tank; 73 - Handbrake air storage tank; 74 - Rear brake air storage tank; 75 - Four - circuit protection valve. Detailed implementation mode

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of them. Usually, the components of the embodiments of this application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0030] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0031] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0032] Embodiment 1 Currently, pure electric buses powered by power batteries are beginning to be widely used in buses and tourist coaches. The service life of the components used in the braking system of pure electric buses deserves our attention. When the electric air compressor provides continuous power for the entire braking system, it also generates a large amount of heat. If the heat is not removed in time, when the vehicle stops running, a large amount of condensed water will be generated in the entire pipeline, which will affect the service life of valves and air storage tanks. At present, the existing cooling and drainage system still has the following deficiencies: the heat generated by the air compressor exhaust cannot be discharged in time, the vehicle braking pipeline is severely rusted, and the valve life is shortened.

[0033] In view of this, referring to Figure 1 FIG., the cooling and drainage system provided by the embodiment of the present invention is used to communicate with the air compressor 1 and includes a first cooling and drainage mechanism, a second cooling and drainage mechanism, and a third cooling and drainage mechanism that are connected in sequence; the first cooling and drainage mechanism includes a radiator 21 and a wet air storage tank 22. The input port of the radiator 21 is communicated with the air compressor 1, the output port of the radiator 21 is communicated with the inlet of the wet air storage tank 22, and the wet air storage tank 22 is provided with a first drain valve 221; the second cooling and drainage mechanism includes a separator 31. The air inlet of the separator 31 is communicated with the outlet of the wet air storage tank 22. A diversion component and a collector are installed inside the separator 31. The diversion component is respectively communicated with the air inlet of the separator 31 and the collector; the third cooling and drainage mechanism includes a dryer 41 and a regeneration cylinder 42. The dryer 41 is communicated with the air outlet of the separator 31 and the regeneration cylinder 42, and the regeneration cylinder 42 is provided with a second drain valve.

[0034] Specifically, the air compressor 1 includes an air compressor and a gas pump, which are not limited herein. Further, the first drain valve 221 and the second drain valve are used to be signal-connected to the vehicle control chip to realize the intelligent opening and closing of the first drain valve 221 and the second drain valve, and improve the automation degree of the cooling and drainage system. Alternatively, the driver manually controls the opening and closing of the first drain valve 221 and the second drain valve.

[0035] The first cooling and drainage mechanism is used to perform the first cooling and drainage on the gas discharged by the air compressor 1; when the gas discharged by the air compressor 1 flows through the radiator 21 in the first cooling and drainage mechanism, the radiator 21 takes away the heat generated by the air compressor 1 exhaust; 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 takes away the heat generated by the air compressor exhaust and generates cooling water; the cooling water is stored in the wet air storage tank 22; the wet air storage tank 22 is provided 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 to complete the first cooling and drainage.

[0036] The second cooling and drainage mechanism is used for the second cooling and drainage; the air passing through the wet air storage cylinder 22 flows into the air inlet of the separator 31; inside the separator 31, the air flows from top to bottom inside the separator 31, and the heat is carried away; the centrifugal force can keep water and impurities on the diversion component; after the air flows to the bottom of the separator 31, it flows out from the air outlet of the wet air storage cylinder 22. Heat is dissipated when the air flows; at the same time, the liquid water and oil stains condensed on the diversion component flow into the collector at the bottom, completing the second cooling and drainage.

[0037] 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. The dryer 41 filters the impurities in the cooling air and absorbs the moisture in the cooling cavity; when the dryer 41 exhausts, the regeneration cylinder 42 blows the moisture in the molecular sieve in the dryer 41 to regenerate the molecular sieve; when the second drain valve of the regeneration cylinder 42 is opened, drainage can be carried out; the third cooling and drainage is completed, and the function of drying is added.

[0038] This cooling and drainage system can achieve three times of cooling, three times of drainage and one time of drying compressed air, improving the drainage and cooling ability of the brake system pipeline, avoiding rust caused by pipeline water accumulation, and ensuring the service life of brake valves; moreover, the heat when the air compressor 1 exhausts is continuously carried away, avoiding scalding the high and low pressure pipelines, and ensuring that the air compressor 1 will not be damaged by the backflow of moisture in the pipeline to the components of the air compressor 1.

[0039] The structure of the cooling and drainage system is described in detail as follows: In an optional solution provided by an embodiment of the present invention, the radiator 21 includes a heat dissipation pipe 211 and a flow disturbance structure. The input port of the heat dissipation pipe 211 is communicated with the air compressor 1, and the output port of the heat dissipation pipe 211 is communicated with the wet air storage cylinder 22; the flow disturbance structure is located inside the heat dissipation pipe 211.

[0040] Specifically, the heat dissipation pipe 211 can be set as a copper pipe or a steel pipe, and the cross section is set as a ring. In this embodiment, the length of the heat dissipation pipe 211 is greater than or equal to 3 meters. The flow disturbance structure is located inside the heat dissipation pipe 211 to make the fluid flowing through the heat dissipation pipe 211 turbulent and improve the cooling effect. Turbulence means that the gas flow is chaotic and contains vortices, and the energy dissipation is high.

[0041] The heat dissipation pipe 211 is installed in the radiator 21. The heat dissipation pipe 211 is respectively communicated with the air compressor 1 and the wet air storage cylinder 22, and is used to transport the gas output by the air compressor 1 into the wet air storage cylinder 22 and preliminarily cool the gas. The flow disturbance structure is located inside the heat dissipation pipe 211 and is used to extend the gas flow path and increase the turbulence intensity to improve the cooling effect.

[0042] In an alternative solution provided by an embodiment of the present invention, the turbulence structure includes a spiral structure, and the spiral structure extends along the axial direction of the heat dissipation tube 211.

[0043] Specifically, the spiral structure is located inside the heat dissipation tube 211, causing the gas flowing through the heat dissipation tube 211 to flow along the spiral surface of the spiral structure, thereby extending the flow path of the gas inside the heat dissipation tube 211.

[0044] The thread structure is located inside the heat dissipation tube 211 and is used to extend the gas flow path and increase the turbulence intensity. The Reynolds number Re is increased from 2000 to 5000, improving the cooling effect. Among them, the Reynolds number is the core dimensionless parameter in fluid mechanics, used to quantify the relative importance of inertial force and viscous force in fluid flow. The larger the Reynolds number, the more significant the inertial force, and the flow tends to be turbulent; conversely, the viscous force dominates and the flow is more stable.

[0045] In an alternative solution provided by an embodiment of the present invention, the ratio a of the pitch of the spiral structure to the inner diameter of the heat dissipation tube 211 is set to 5 - 7.

[0046] Specifically, the pitch of the spiral structure refers to the distance measured along the spiral direction between adjacent two threads. The ratio a of the pitch of the spiral structure to the inner diameter of the heat dissipation tube 211 is set to 5, 6, or 7, etc.; of course, setting a to other values should also be within the protection scope of the embodiment of the present invention. Preferably, in this embodiment, the inner diameter of the heat dissipation tube 211 is set to 20 mm; compared with the copper tube with an inner diameter of 16 mm in the prior art, the inner diameter of the heat dissipation tube 211 is increased, thereby increasing the gas flow rate per unit time.

[0047] The ratio a of the pitch of the spiral structure to the inner diameter of the heat dissipation tube 211 is set to 5, 6, or 7, which is used to balance the flow resistance and the turbulence intensity.

[0048] In an alternative solution provided by an embodiment of the present invention, the ratio b of the height by which the spiral structure protrudes from the inner wall of the heat dissipation tube 211 to the inner diameter of the heat dissipation tube 211 is set to 0.14 - 0.16.

[0049] Specifically, the height by which the spiral structure protrudes from the inner wall of the heat dissipation tube 211 refers to the distance between the end of the spiral structure and the inner wall of the heat dissipation tube 211. The ratio b of the height by which the spiral structure protrudes from the inner wall of the heat dissipation tube 211 to the inner diameter of the heat dissipation tube 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 the embodiment of the present invention. In this embodiment, the height by which the spiral structure protrudes from the inner wall of the heat dissipation tube 211 takes 15% of the inner diameter of the heat dissipation tube 211 and is set to 3 mm, ensuring that the boundary layer is fully destroyed and the pressure drop is controllable.

[0050] In an alternative solution provided by an embodiment of the present invention, the heat dissipation tube 211 includes a starting section and a main body section; the starting section is connected to the air compressor 1, one end of the main body 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 body section.

[0051] Specifically, the starting section is located on one side of the input port of the heat dissipation tube 211 and is used to communicate with the air compressor 1.

[0052] The gas flow rate at the input port of the heat dissipation tube 211 is usually relatively high. A larger initial pitch can reduce the initial pressure drop; as the flow rate gradually decreases due to resistance, the pitch synchronously decreases to maintain a continuous turbulence intensity.

[0053] In an alternative solution provided by an embodiment of the present invention, the pitch of the spiral structure in the starting section gradually increases from the end close to the main body section to the end far from the main body section.

[0054] The gradient design of the pitch of the spiral structure in the starting section can avoid sudden changes in flow rate, prevent local eddy currents or excessive pressure drops, make the gas velocity distribution more uniform by gradually increasing the flow resistance, and avoid heat transfer dead corners caused by uneven flow rates.

[0055] As an implementation manner, the spiral structure includes spiral turbulators, and the spiral turbulators are installed on the inner wall of the heat dissipation tube 211.

[0056] Specifically, the spiral turbulators are made of stainless steel thin sheets, welded to the inner wall of the heat dissipation tube 211 by laser, and the temperature resistance characteristics are greater than or equal to 200°C; the spiral turbulators are continuously spirally arranged along the axial direction of the heat dissipation tube 211. Further, the thickness of the stainless steel thin sheet is set to 1 mm; of course, if the thickness of the stainless steel thin sheet is set to other values, it should also be within the protection scope of the embodiment of the present invention.

[0057] The spiral turbulators are welded to the inner wall of the heat dissipation tube 211, so that the spiral structure is located inside the heat dissipation tube 211, thereby realizing the delay of the gas flow path.

[0058] As another implementation manner, the spiral structure includes spiral protrusions, and the spiral protrusions are integrally formed with the inner wall of the heat dissipation tube 211.

[0059] In an alternative solution provided by an embodiment of the present invention, the turbulence structure includes two groups of protrusion structures, and the two groups of protrusion structures are arranged opposite to each other and offset; multiple protrusion structures in each group of protrusion structures are arranged at intervals along the axial direction of the heat dissipation tube 211.

[0060] Specifically, the protrusion mechanism protrudes from the inner wall of the heat dissipation tube 211 towards the inside of the heat dissipation tube 211; the two groups of protrusion structures being arranged opposite to each other and offset means that one protrusion structure in one group is opposite to the gap between two adjacent protrusion structures in the other group.

[0061] The convex structure can increase the surface area of the heat dissipation pipe 211, thereby increasing the heat exchange area between the gas and the heat dissipation pipe 211 and enhancing the cooling effect. In addition, the arrangement form of the two groups of convex structures being opposite and staggered prolongs the flow path of the gas and further enhances the cooling effect.

[0062] In an alternative solution provided by the embodiment of the present invention, fins are installed on the outer wall of the heat dissipation pipe 211.

[0063] The fins can increase the surface area of the heat dissipation pipe 211, improve the heat exchange area, and thus improve the cooling efficiency.

[0064] In an alternative solution provided by the embodiment of the present invention, the first drain valve 221 is installed at the bottom of the wet air storage cylinder 22.

[0065] Specifically, inlets and outlets are respectively provided on two opposite side walls of the wet air storage cylinder 22, and the first drain valve 221 is installed on the bottom wall. The position of the inlet is lower than the position of the outlet; or, the position of the inlet is opposite to the position of the outlet; the heat dissipation pipe 211 extends into the interior of the wet air storage cylinder 22 from the inlet and is bent downward so that the end of the heat dissipation pipe 211 faces the bottom wall of the wet air storage cylinder 22, thereby enabling the fluid flowing out of the heat dissipation pipe 211, including water and gas, to flow out in the direction of the bottom wall of the wet air storage cylinder 22, preventing the gas from directly overflowing from the outlet of the wet air outlet cylinder with water. Further, the first drain valve 221 is located in the middle of the bottom wall of the wet air storage cylinder 22, and the bottom wall of the wet air storage cylinder 22 is an inclined surface that gradually slopes downward from the outer edge to the middle. Preferably, a seal, such as an O-ring, is installed between the heat dissipation pipe 211 and the side wall of the wet air storage cylinder 22 to fill the gap between the heat dissipation pipe 211 and the inlet and improve the sealing performance.

[0066] The first drain valve 221 is installed at the bottom of the wet air storage cylinder 22, which facilitates drainage.

[0067] In an alternative solution provided by the embodiment of the present invention, at least one eddy current generator 212 is installed on the heat dissipation pipe 211, and the vibration frequency of the eddy current generator 212 is positively correlated with the fluid flow rate in the heat dissipation pipe 211.

[0068] Specifically, the vortex generator 212 is piezoelectrically driven with adjustable frequency to adapt to different flow rate conditions. Further, the vortex generator 212 adopts a diamond-shaped fin array: with dimensions set as 5*5*0.5 mm, processed and embedded on the inner wall of the heat dissipation tube 211 using the MESMS process, using a piezoelectric material: PZT-5A piezoelectric ceramic sheet (dimensions set as 3*3*0.2 mm), pasted inside the fins, with a driving voltage of 0 - 60 V, arranged in an S-shaped or spiral gap. Preferably, two vortex generators 212 are installed at intervals along the axial direction of the heat dissipation tube 211 on the heat dissipation tube 211. The vortex generator 212 is equipped with a temperature sensor for detecting the temperature of the fluid flowing through the vortex generator 212. The vortex generator 212 adopts frequency adaptive control, and the driving logic includes a basic mode and an enhanced mode. Basic mode: Dynamically adjust the vibration frequency according to the flow rate; specifically, increase the vibration frequency when the flow rate increases. Enhanced mode: When the temperature sensor detects local overheating (e.g., >100 °C), trigger a high-frequency pulse (f = 200 - 500 HZ). Among them, the control circuit uses a digital power amplifier chip to drive the voltage sheet, supports PWM (Pulse Width Modulation) frequency modulation, and the power consumption <10 W / m.

[0069] The cooling and drainage system adopts compound turbulent excitation, with the synergistic effect of spiral turbulators (passive) + piezoelectric micro-vortices (active), breaking through the limit of traditional passive heat dissipation, achieving adaptive intelligent control, and dynamic frequency adjustment based on flow rate-temperature feedback to achieve the optimal energy efficiency ratio.

[0070] In an alternative solution provided by an embodiment of the present invention, the radiator 21 includes a heat dissipation box, the heat dissipation tube 211 is installed in the heat dissipation box, and the heat dissipation box is provided with an air inlet.

[0071] Specifically, the circulating natural wind can enter the heat dissipation box from the air inlet, exchange heat with the heat dissipation tube 211, and take away the heat on the heat dissipation tube 211.

[0072] The heat dissipation box provides a supporting and fixing function for the heat dissipation tube 211.

[0073] In an alternative solution provided by an embodiment of the present invention, the cooling and drainage system further includes a motor cooling component, and the motor cooling component includes a cooling pipeline that extends into the heat dissipation box and exchanges heat with the heat dissipation tube 211.

[0074] Specifically, the outer wall of the cooling pipeline is attached to the outer wall of the heat dissipation tube 211 to increase the contact area between the two and improve the heat exchange efficiency.

[0075] The cooling pipeline improves the cooling effect on the fluid in the heat dissipation tube 211.

[0076] In an alternative solution provided by an embodiment 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 contains a cooling medium; the cooling pipeline 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.

[0077] Specifically, referring to Figure 1 , Figure 1 The arrow in indicates the flow direction of the cooling medium; the cooling medium is set as a coolant. The coolant enters the circulation pipeline through the carrier box 54, enters the controller 51 and the motor 53 under the drive of the pump body 52, and finally the coolant enters the cooling pipeline to cool the heat dissipation pipe 211. The pump body 52 is set as a water pump.

[0078] This cooling and drainage system is integrated with the motor 53 cooling system to ensure the normal operation of the motor 53 cooling system.

[0079] In an alternative solution provided by an embodiment of the present invention, a hose assembly 6 is installed between the air compressor 1 and the heat dissipation pipe 211.

[0080] Specifically, the hose assembly 6 is resistant to high temperature and high pressure.

[0081] When the air compressor 1 operates, it will vibrate. By connecting the air compressor 1 and the heat dissipation pipe 211 through the hose assembly 6, the vibration caused by gas transmission is reduced.

[0082] In an alternative solution provided by an embodiment of the present invention, the air inlet of the separator 31 is provided on the side wall of the separator 31, and the air outlet is provided at the top of the separator 31.

[0083] Specifically, the diversion assembly includes a diversion plate and a spiral track, and the end of the diversion plate is connected to the spiral track. A large amount of air passing through the wet air storage cylinder 22 passes through the separator 31, and the compressed air flows in from the air inlet on the side of the separator 31. Inside the separator 31, the hot air flows from top to bottom in the spiral space, and a large amount of heat is carried away. The centrifugal force can keep water and impurities on the diversion plate. After the compressed air flows to the bottom of the spiral track, it will flow out through a vertical upward channel and the air outlet at the top. As the air flows, heat is dissipated. At the same time, the liquid water and oil stains condensed on the diversion plate will flow along the downward spiral pipeline and through a filter screen into the collector at the bottom; the filter screen is used to prevent impurities from flowing into the collector.

[0084] The separator 31 discharges the cooled air through the air outlet and diverts the water to the collector using the diversion assembly.

[0085] The following details the process of the cooling and drainage system: When the gas from the air compressor 1 passes through the heat dissipation pipe 211, circulating air continuously enters the radiator 21, and the coolant continuously flows into the cooling pipeline, taking away the heat on the heat dissipation pipe 211; then it passes through the wet air storage cylinder 22, and the temperature slowly decreases, thereby generating a large amount of cooling water, which is stored in the wet air storage cylinder 22; the wet air storage cylinder 22 is equipped with a first drain valve 221. When the air compressor 1 stops or starts working, the first drain valve 221 starts to work and discharges a large amount of water. Or the driver can manually press the button of the first drain valve 221 to drain the water. The above is the first cooling and draining of the cooling and draining system.

[0086] A large amount of air passing through the wet air storage cylinder 22 passes through the separator 31, and the compressed air flows in from the air inlet on the side of the separator 31. Inside the separator 31, the hot air flows downward in the spiral space, and a large amount of heat is taken away. The centrifugal force can keep the water and impurities on the deflector plate. After the compressed air flows to the bottom of the spiral track, it will flow out from a vertically upward channel and through the air outlet at the top. As the air flows, the heat dissipates. At the same time, the liquid water and oil stains condensed on the deflector plate will flow along the downward spiral pipeline and through a filter screen into the bottom collector. This is the second cooling and draining of the cooling and draining system.

[0087] The cooled air passing through the separator 31 already contains a large amount of moisture at this time, and this requires the dryer 41 to filter the impurities in the gas and absorb the moisture in the gas. In the entire braking system circuit, when the gas reaches the rated pressure value (the same as the rated air pressure below), the dryer 41 exhausts, and at this time, the regeneration cylinder 42 blows the moisture in the molecular sieve in the drying cylinder to regenerate the molecular sieve. This is the third cooling and draining of the cooling and draining system, and it also adds a drying function. Embodiment Two The vehicle provided by the embodiment of the present invention includes the cooling and draining system described in Embodiment One, and thus also has all the beneficial effects in Embodiment One, which will not be elaborated here.

[0088] In the optional solution provided by the embodiment of the present invention, the vehicle includes an air storage system and an air compressor 1; the air compressor 1 is communicated with the radiator 21 in the cooling and draining system, and the air storage system is communicated with the dryer 41 in the cooling and draining system.

[0089] Specifically, refer to Figure 2 , Figure 2 is a vehicle equipped with a cooling and draining system; the air storage system includes a front brake air storage cylinder 71, an auxiliary air storage cylinder 72, a handbrake air storage cylinder 73, and a rear brake air storage cylinder 74. The front brake air storage cylinder 71, the auxiliary air storage cylinder 72, the handbrake air storage cylinder 73, and the rear brake air storage cylinder 74 are all communicated with the dryer 41. Further, the vehicle includes a four-circuit protection valve 75, and the four-circuit protection valve 75 is installed between the air storage system and the dryer 41.

[0090] After the air compressor 1 undergoes three drainings, three coolings, and one drying of the compressed air, it supplies air source to the air storage tank of the whole vehicle through the four-circuit protection valve 75, improving the performance of the whole vehicle's braking system. After long-term operation of the vehicle, no pipeline corrosion or valve corrosion occurs.

[0091] Embodiment Three A method for regulating a vehicle as described in Embodiment Two provided by an embodiment of the present invention.

[0092] In an optional solution provided by an embodiment of the present invention, the vehicle includes a control chip, which is signal-connected to the air compressor 1, the first cooling mechanism, the second cooling mechanism, the third cooling mechanism, and the air storage system. The driver can operate the control chip in the cab.

[0093] The method for regulating the vehicle includes: S100: Determine whether the vehicle is started; if so, determine whether the number of working times of the air compressor 1 reaches the rated number of times, or whether the wet air storage tank 22 reaches 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.

[0094] Specifically, in this embodiment, the rated number of times is set to three, the rated air pressure is set to 0.8 bar, and the first preset time is set to 3 s. During driving, when draining water, the high level of the pin of the whole vehicle VCU19: When the air pump works for the third time and the air pressure in the wet air storage tank 22 reaches 0.8 bar, start draining water, each time for 3 s, and cycle in the above manner.

[0095] During driving, control the opening of the first drain valve 221 and the second drain valve according to the pressure in the wet air storage tank 22 and the number of operations of the air pump to achieve automatic control.

[0096] In an optional solution provided by an embodiment of the present invention, when receiving an instruction to start the vehicle, 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 second preset time is reached.

[0097] Specifically, the second preset time is less than the first preset time. In this embodiment, the second preset time is set to 1 s. When draining water after powering off, the high level of the pin of the whole vehicle VCU19: After powering off in the on gear, drain water for 1 s.

[0098] Drain water when starting the vehicle.

[0099] In an alternative solution provided by an embodiment of the present invention, in addition to closing the first drain valve 221 and the second drain valve when the second preset time is reached, it further includes: when the third preset time is reached, controlling the drain control valve of the air storage system to open, and when the fourth preset time is reached, controlling the drain control valve to close.

[0100] Specifically, the high level of the 74th pin of the vehicle VCU: after the vehicle is powered off in the on gear, the 19th pin of the vehicle VCU first drains water for 1 s, and then after an interval of 1 s, the 74th pin of the vehicle VCU drains water for 1 s.

[0101] After starting the vehicle, the air storage system drains water.

[0102] It should be noted that, without conflict, the features in the embodiments of the present application can be combined with each other.

[0103] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A cooling drainage system, used to communicate with an air compressor (1), characterized in that: include: A first cooling drainage mechanism, a second cooling drainage mechanism and a third cooling drainage mechanism connected in sequence; The first cooling and draining mechanism comprises a radiator (21) and a wet air storage cylinder (22), the input port of the radiator (21) being in communication with the air compressor (1), the output port of the radiator (21) being in communication with the inlet port of the wet air storage cylinder (22), and the wet air storage cylinder (22) being provided with a first drain valve (221); The second cooling and drainage mechanism comprises a separator (31), the air inlet of the separator (31) being in communication with the outlet of the wet air storage cylinder (22), a flow guide component and a collector being installed inside the separator (31), the flow guide component being in communication 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 in communication with an air outlet of the separator (31) and the regeneration cylinder (42); and the regeneration cylinder (42) is provided with a second drainage valve.

2. The cooling drainage system according to claim 1, characterized in that: The radiator (21) comprises a heat dissipation pipe (211) and a spoiler structure, the input port of the heat dissipation pipe (211) is in communication with the air compressor (1), and the output port of the heat dissipation pipe (211) is in communication with the wet air storage cylinder (22); The spoiler structure is located inside the heat dissipation pipe (211).

3. The cooling drainage system according to claim 2, characterized in that: The spoiler structure comprises a spiral structure, and the spiral structure is arranged to extend along the axial direction of the heat dissipation pipe (211).

4. The cooling drainage system according to claim 3, characterized in that: The heat dissipation pipe (211) comprises a starting section and a main section; the starting section is in communication with the air compressor (1); one end of the main section is connected to the starting section, and the other end is in communication with the wet air storage cylinder (22); The pitch of the helical structure in the starting section is greater than the pitch of the helical structure in the main section.

5. The cooling drainage system according to claim 4, characterized in that: The pitch of the spiral structure in the starting section gradually increases from an end close to the main section to an end far away from the main section.

6. The cooling drainage system according to any one of claims 3 to 5, characterized in that: The spiral structure comprises a spiral spoiler, and the spiral spoiler is installed on the inner wall of the heat dissipation pipe (211).

7. The cooling drainage system according to claim 2, characterized in that: The spoiler structure includes two groups of protrusion structures, and the two groups of protrusion structures are arranged opposite to each other and staggered; The multiple protrusion structures in each group of the protrusion structures are arranged at intervals along the axial direction of the heat dissipation pipe (211).

8. The cooling drainage system according to claim 2, characterized in that: At least one vortex generator (212) is installed on the heat dissipation pipe (211), and the vibration frequency of the vortex generator (212) is positively correlated with the flow rate of the fluid in the heat dissipation pipe (211).

9. The cooling drainage system according to claim 8, characterized in that: The vortex generator (212) is equipped with a temperature sensor, and the temperature sensor is used to detect the temperature of the fluid flowing through the vortex generator (212).

10. The cooling drainage system according to claim 2, characterized in that: The radiator (21) comprises a heat dissipation box, the heat dissipation pipe (211) is installed on the heat dissipation box, and the heat dissipation box is provided with an air inlet.

11. The cooling drainage system according to claim 10, characterized in that: The cooling and drainage system also includes a motor cooling component, the motor cooling component includes a cooling pipeline, the cooling pipeline extends into the heat dissipation box and performs heat exchange with the heat dissipation pipe (211).

12. The cooling drainage system according to claim 11, characterized in that: The motor cooling assembly comprises a controller (51), a pump body (52), a motor (53) and a carrying box (54), wherein the carrying box (54) carries a cooling medium; The cooling pipeline is in communication with the motor (53) and the pump body (52); The carrying box (54), the pump body (52), the controller (51) and the motor (53) are connected in sequence.

13. A vehicle, characterized in that: It comprises an air storage system, an air compressor (1) and a cooling and drainage system according to any one of claims 1 to 12; The air compressor (1) is in communication with a radiator (21) in the cooling and drainage system, and the air storage system is in communication with a dryer (41) in the cooling and drainage system.

14. The vehicle according to claim 13, characterized in that The air storage system comprises a front brake air storage cylinder (71), an auxiliary air storage cylinder (72), a hand brake air storage cylinder (73) and a rear brake air storage cylinder (74); the front brake air storage cylinder (71), the auxiliary air storage cylinder (72), the hand brake air storage cylinder (73) and the rear brake air storage cylinder (74) are all in communication with the dryer (41).

15. A method for controlling a vehicle as claimed in claim 14, characterized in that: The vehicle comprises a control chip, the control chip being connected to an air compressor (1), a first cooling mechanism, a second cooling mechanism, a third cooling mechanism and an air storage system by signal, and the method comprising: Determine whether the vehicle is started, and if so, determine whether the number of times the air compressor (1) has worked has reached a rated number of times, or whether the wet air storage cylinder (22) has reached a rated air pressure, and 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 a first preset time has been reached.

16. The method according to claim 15, characterized in that 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.

17. The method according to claim 16, characterized in that When the second preset time is reached, controlling the first drain valve (221) and the second drain valve to close also includes: When the third preset time is reached, the drainage control valve of the gas storage system is controlled to open, and when the fourth preset time is reached, the drainage control valve is controlled to close.

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