Electro-hydraulic hybrid braking unit with high safety coordination

Abstract

The invention provides an electro-hydraulic hybrid brake unit with high safety and coordination, belongs to the technical field of brake units, and solves the technical problems that a brake unit of an existing new energy truck lacks a means for effectively monitoring the abrasion of a brake pad, the heat dissipation efficiency is low, the coordination and the safety are difficult to guarantee and the like. Comprising a brake caliper assembly, a brake disc, a main shaft assembly, a water cooling assembly and a protection assembly, the brake caliper assembly is arranged on a vehicle frame, the main shaft assembly is arranged on a corresponding vehicle tire main shaft, the brake disc is arranged on the main shaft assembly, the water cooling assembly is arranged on the brake caliper assembly, and the protection assembly is arranged on the water cooling assembly. An infrared temperature sensor is arranged on the brake caliper assembly, and the brake caliper assembly, the water cooling assembly and the infrared temperature sensor are all electrically connected with the electronic control unit. While efficient braking and reliable heat dissipation functions are achieved, tight protection and intelligent coordination control are achieved, the braking efficiency and the service life of the braking unit are guaranteed, and safety and coordination are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of brake units and relates to an electro-hydraulic hybrid brake unit with high safety and coordination. Background Art

[0002] In the field of new energy vehicle braking systems, with the continuous improvement of the speed and load of new energy vehicles, traditional braking technology faces many challenges. The braking units of existing new energy trucks lack the means to effectively monitor the wear of brake pads and cannot timely warn of the risk of excessive wear. At the same time, under high load conditions, frequent braking will cause the brake disc temperature to rise sharply. The existing heat dissipation method is inefficient, and the cooling water contaminates the brake disc, which can easily cause the braking performance to decline and shorten the service life of the braking system. In addition, the intrusion of external debris and problems such as coolant leakage and splashing will also affect the normal operation of the brake disc and threaten the safety of the braking system. There is a lack of coordinated control mechanism between the components, and the braking and cooling process cannot be dynamically adjusted according to the actual temperature of the brake disc and other conditions, making it difficult to ensure the coordination and safety of the braking system.

[0003] Therefore, we propose a highly safe and coordinated electro-hydraulic hybrid brake unit that not only has efficient braking and reliable heat dissipation functions, but also achieves strict protection and intelligent coordinated control to ensure the braking performance and service life of the brake unit, and ensure safety and coordination. Summary of the Invention

[0004] The purpose of the present invention is to address the above-mentioned problems in the existing technology and propose an electro-hydraulic hybrid brake unit with high safety and coordination. The technical problem to be solved by this invention is: how to achieve strict protection and intelligent coordinated control of the brake unit while having efficient braking and reliable heat dissipation functions, so as to ensure the braking efficiency and service life of the brake unit and ensure safety and coordination.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A highly safe and coordinated electro-hydraulic hybrid brake unit comprises a brake caliper assembly, a brake disc, a spindle assembly, a water cooling assembly and a protective assembly, wherein the brake caliper assembly is arranged on a vehicle frame, the spindle assembly is arranged on the spindle of a corresponding vehicle tire, the brake disc is arranged on the spindle assembly, the upper end of the brake disc is located inside the brake caliper assembly, the water cooling assembly is arranged on the brake caliper assembly, and the water cooling assembly is located outside the brake disc, the protective assembly is arranged on the water cooling assembly, and the protective assembly is located on the side of the brake disc close to the vehicle body, the brake caliper assembly is provided with an infrared temperature sensor, and the brake caliper assembly, the water cooling assembly and the infrared temperature sensor are all electrically connected to the vehicle's electronic control unit.

[0007] The working principle of the present invention is: when the vehicle needs to brake, the brake caliper assembly applies braking force to the brake disc to achieve vehicle braking, the main shaft assembly rotates with the main shaft of the vehicle tire, and the brake disc is installed on the main shaft assembly and interacts with the brake caliper assembly during braking. The water cooling assembly is arranged on the brake caliper assembly and is located outside the brake disc, which is used to cool the brake disc to prevent the temperature from being too high during braking. The protective assembly is installed on the water cooling assembly and is located on the side of the brake disc close to the vehicle body to play a protective role. The infrared temperature sensor on the brake caliper assembly can detect the temperature of the brake disc and transmit the temperature signal to the vehicle's electronic control unit. The electronic control unit regulates the brake caliper assembly and the water cooling assembly according to the temperature signal to ensure the safety and coordination of the braking process.

[0008] The brake caliper assembly includes a brake caliper housing, which is fixed to the vehicle frame. A plurality of hydraulic slave pumps are provided inside the brake caliper housing. The plurality of hydraulic slave pumps are divided into two groups of equal number. The two groups of hydraulic slave pumps are symmetrically arranged. A brake pad is provided on the telescopic end of each group of hydraulic slave pumps. The two brake pads are respectively located on both sides of the brake disc. The hydraulic slave pump is electrically connected to the vehicle's electronic control unit.

[0009] With the above structure, when the vehicle needs to brake, the vehicle's electronic control unit sends a signal to the hydraulic slave pump in the brake caliper housing, and the hydraulic slave pump starts working. Since the hydraulic slave pumps are divided into two groups of equal number and symmetrical arrangement, each group of hydraulic slave pumps is provided with brake pads on the telescopic end. Under the action of the hydraulic slave pumps, the brake pads on both sides move toward the brake disc respectively until the brake disc is clamped, thereby achieving vehicle braking through friction.

[0010] The brake pad is provided with a plurality of evenly distributed chip grooves on the end surface facing the brake disc, and the chip grooves are vertically arranged. The brake pad is provided with a mounting groove on the end surface away from the brake disc, and a wear block and a voltage sensor are provided inside the mounting groove. The two ends of the wear block are electrically connected to the voltage sensor through wires, and the voltage sensor is electrically connected to the electronic control unit of the vehicle. A fixing plate is fixed on the brake pad, and the two ends of the fixing plate respectively abut against the wear block and the voltage sensor.

[0011] With the above structure, when the brake pad contacts the brake disc for braking, the chip removal groove on the end face of the brake pad facing the brake disc can help discharge the debris generated during the braking process to prevent the debris from affecting the braking effect. A wear block and a voltage sensor are provided in the mounting groove on the end face of the brake pad away from the brake disc. Both ends of the wear block are electrically connected to the voltage sensor through wires. As the brake pad wears, the wear block is gradually worn away. When the wear reaches a certain extent, the contact state between the wear block and the fixed plate changes, resulting in a voltage change detected by the voltage sensor. The voltage sensor transmits a signal to the vehicle's electronic control unit, prompting that the brake pad needs to be replaced.

[0012] The water cooling assembly includes a nozzle, a micro water pump, an arc-shaped sealing plate, two symmetrical open rings and two symmetrical sealing rings. The two sealing rings are made of nitrile rubber. Both ends of the two open rings are provided with mounting posts. Both ends of the open rings are arranged on the brake caliper housing through the mounting posts. Limiting grooves are provided on the inner end faces of the open rings. Limiting protrusions are provided on the outer circles of the two sealing rings. The limiting protrusions are located inside the corresponding limiting grooves. The sealing rings are located outside the brake disc. A gap is left between the sealing rings and the outer circle of the brake disc. The upper ends of the two sealing rings are located between the two brake pads. Sealing rings are provided on the end faces of the two sealing rings facing each other. A sealing gasket is provided between the two open rings. The sealing gasket matches the specifications of the two open rings. A mounting ring is provided on the upper end of the sealing gasket. The specifications of the mounting ring and the nozzle are matched, and the nozzle is arranged inside the mounting ring. Both open rings are provided with mounting cavities, and the mounting cavity matches the specifications of the mounting ring and the nozzle. The mounting ring and the nozzle are arranged inside the mounting cavity, and the nozzle is set toward the brake disc. The micro water pump is fixed on the brake caliper housing, and the water inlet end of the nozzle is connected with the water outlet end of the micro water pump through a hose. The water inlet end of the micro water pump is connected with the external vehicle-mounted water tank through a hose. The arc-shaped sealing plate is located between the two sealing rings, and the arc-shaped sealing plate is located inside the brake caliper housing. Snap rings are provided at both ends of the arc-shaped sealing plate, and the snap rings match the specifications of the mounting column. The two ends of the arc-shaped sealing plate are respectively arranged on the mounting column through snap rings. Rubber soft edges are provided on both sides of the arc-shaped sealing plate, and the rubber soft edges are in contact with the sealing rings on the same side.

[0013] With the above structure, when the vehicle brakes, the micro water pump draws water from the onboard water tank and transports the water to the nozzle through a hose. The nozzle is set toward the brake disc and sprays water toward the brake disc for cooling. The two open rings are installed on the brake caliper housing through the mounting column. A limiting groove is provided inside the caliper to place a sealing ring made of nitrile rubber. The limiting protrusion on the outer circle of the sealing ring is located in the limiting groove to ensure the seal between the open ring and the sealing ring. A sealing gasket is provided between the open rings to ensure the seal between the two open rings. A sealing ring is provided on the end face of the two sealing rings facing each other, and a gap is left between the sealing ring and the outer circle of the brake disc. The gap uses the tension of water to ensure that water does not flow out of the gap to the surface of the brake disc, affecting the braking ability of the brake disc. When the vehicle is at a faster speed, the water on the brake disc will fill between the open ring and the sealing ring under the action of centrifugal force, forcing the sealing ring to deform and contact the outer circle of the brake disc, thereby enhancing the sealing effect and achieving a certain braking effect. The arc-shaped sealing plate is located between the two sealing rings and inside the brake caliper housing. The retaining rings at both ends are installed on the mounting column, and the rubber soft edges on both sides contact the sealing ring on the same side to prevent the coolant from flowing out without affecting the clamping of the brake pad, ensuring the normal operation of the water-cooling component.

[0014] The brake disc is annular, and a plurality of heat dissipation channels evenly distributed in a circumferential array are opened inside the brake disc. The heat dissipation channels are arranged along the radial direction of the brake disc and the heat dissipation channels pass through the brake disc. A plurality of zigzag grids are provided inside the heat dissipation channels, and the zigzag grids are arranged along the radial direction of the brake disc. The upper end of the brake disc is located between the two brake pads. The sum of the thickness of the two open rings and the sealing gasket is equal to the thickness of the brake disc. The position of the nozzle corresponds to the heat dissipation channel.

[0015] With the above structure, when the brake disc generates heat during braking, the heat is dissipated through the heat dissipation channels that are radially arranged inside the brake disc and evenly distributed in a circumferential array. The heat dissipation channels are provided with zigzag grids arranged radially along the brake disc to increase the heat dissipation area. When the water cooling component is working, the nozzle sprays water toward the brake disc. The position of the nozzle corresponds to the heat dissipation channel. The water can enter the heat dissipation channel to help further dissipate heat. The zigzag grid can increase the residence time of water inside the brake disc to ensure sufficient heat exchange. The upper end of the brake disc is located between the two brake pads. The sum of the thickness of the two open rings and the sealing gasket is equal to the thickness of the brake disc, ensuring that the brake pad can act on the brake disc without affecting braking.

[0016] The spindle assembly includes a spindle, a bowl-shaped connector, a spindle protective sleeve, an annular sheet and two symmetrical baffles. The spindle is connected to the vehicle's power motor through a corresponding transmission assembly. The bowl-shaped connector is fixed to one end of the spindle by bolts. The brake disc is fixed to the bowl-shaped connector. The spindle passes through the inside of the brake disc. The axis of the spindle is collinear with the axis of the brake disc. The spindle protective sleeve is sleeved on the spindle. The brake disc is located outside the spindle protective sleeve. An annular sheet is fixed on the annular inner ring of the brake disc. An annular waterproof sheet is fixed on the annular inner ring of the annular sheet. The waterproof sheet is located at the heat dissipation On the side of the channel close to the bowl-shaped connector, the annular inner ring of the waterproof sheet contacts the main shaft protective sleeve. The main shaft protective sleeve and the waterproof sheet are both made of nitrile rubber. The baffle is a semicircular ring, and the cross-section of the baffle is L-shaped. The two baffles are both located on the side of the heat dissipation channel away from the bowl-shaped connector. The L-shaped short sides of the two baffles are fixed on one end face of the brake disc, and the inner diameter of the circular sleeve surrounded by the L-shaped short sides of the two baffles is equal to the inner diameter of the brake disc. The outer circle of the L-shaped long side of the two baffles is provided with a curling edge, and the curling edge faces away from the brake disc.

[0017] With the above structure, the main shaft is connected to the vehicle power motor through the transmission assembly to transmit power to the vehicle tire. The bowl-shaped connecting piece is fixed to one end of the main shaft with bolts and is also used to connect the vehicle tire. The brake disc is fixed on the bowl-shaped connecting piece. The main shaft passes through the brake disc and the axes of the two coincide to ensure stable rotation of the brake disc. The main shaft protective sleeve is sleeved on the main shaft to prevent water and other liquids from entering the main shaft and affecting the transmission. The annular sheet on the inner ring of the brake disc is fixed with an annular waterproof sheet. The waterproof sheet is located on the side of the heat dissipation channel close to the bowl-shaped connecting piece, and its annular inner ring contacts the main shaft protective sleeve made of nitrile rubber. When water flows out of the heat dissipation channel, the waterproof sheet can prevent water from flowing to the side of the tire, avoiding water on the side of the brake disc close to the tire. The water will flow out along the circular sleeve with the same inner diameter as the brake disc, which is surrounded by the L-shaped short side parts of the two baffles, and will stay away from the brake disc under the action of the curling of the outer circle of the L-shaped long side of the baffle, thereby ensuring safe and coordinated operation of the main shaft and brake disc.

[0018] The protective assembly includes a protective plate, two fixing frames, two pull-out rods and several screws. The two fixing frames are fixed on one end face of the open ring close to the vehicle body, and the two fixing frames are located on the side of the brake disc away from the bowl-shaped connecting piece. The two fixing frames are provided with fixing grooves, and the two pull-out rods are fixed with limiting blocks. The two pull-out rods are respectively arranged on the two fixing frames through the cooperation between the limiting blocks and the corresponding fixing grooves. The two pull-out rods are both arranged along the radial direction of the brake disc, and the pull-out rods are provided with bristles on the end face of the brake disc. A stopper is fixed on the end of the pull-out rod away from the axis of the brake disc. Several screws are divided into two groups of equal number. The two groups of screws pass through the corresponding fixing frames and are screwed to the corresponding pull-out rods. The cross-section of the protective plate is a fan ring. The two ends of the protective plate are fixed to the fixing frame by screws. The protective plate is located between the brake disc and the water-blocking plate, and the protective plate is located below the main shaft. An arc-shaped protective sheet is provided on the annular outer circle of the protective plate, and the arc-shaped protective sheet is located between the protective plate and the brake disc.

[0019] With the above structure, two fixing frames provide support for the entire protective structure. The pull-out rod cooperates with the fixing groove on the fixing frame through the limit block to achieve adjustable installation. The pull-out rod and the protective plate can be fixed by turning the screws. The bristles on the end face facing the brake disc can clean the debris attached to its surface when the brake disc rotates, preventing the debris from entering the braking system and affecting the braking effect. The protective plate with a fan-shaped cross-section plays a protective role, blocking the external flying debris, water and other substances from contaminating the surface of the brake disc, and at the same time preventing the cooling water flowing down the water baffle from splashing on the brake disc; the arc-shaped protective plate on the outer circle of the protective plate is located between the protective plate and the brake disc, further enhancing the protective effect.

[0020] Compared with the existing technology, this electro-hydraulic hybrid brake unit with high safety and coordination has the following advantages:

[0021] 1. The cooperation between the brake caliper assembly and the brake disc can provide uniform and stable braking force to ensure the braking effect. The chip groove on the brake pad can discharge debris in time to avoid the impact of debris on braking friction and improve braking reliability. At the same time, the wear monitoring device can provide real-time feedback on the wear of the brake pad to prevent safety hazards caused by excessive wear.

[0022] 2. By cooperating with the brake disc, spindle assembly and water cooling assembly, the brake disc temperature can be quickly reduced through water cooling, avoiding the degradation of braking performance due to high temperature, extending the service life of the brake system, and ensuring stability under frequent braking conditions.

[0023] 3. Through the cooperation of the spindle assembly, water cooling assembly and protective assembly, relying on the multiple sealing structure of the water cooling assembly and the multiple protective structures of the spindle assembly and protective assembly, external debris is blocked, preventing coolant from splashing onto the brake disc and affecting the braking effect, thereby comprehensively ensuring the safe operation of the braking system.

[0024] 4. Through the cooperation of the brake caliper assembly, water cooling assembly and infrared temperature sensor, the infrared temperature sensor monitors the brake disc temperature in real time and feeds the signal back to the electronic control unit. The electronic control unit intelligently adjusts the working status of the brake caliper assembly and water cooling assembly according to the temperature data, achieving a dynamic balance between braking and cooling, and improving the overall coordination and safety of the brake unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the rear three-dimensional structure of the present invention.

[0027] Figure 3 It is a schematic diagram of the exploded structure of the brake caliper assembly and the water cooling assembly in the present invention.

[0028] Figure 4 It is a schematic diagram of the exploded structure of the brake pad in the present invention.

[0029] Figure 5 It is a schematic diagram of the cross-sectional structure of some components of the water cooling assembly in the present invention.

[0030] Figure 6 It is a schematic diagram of the exploded structure of the brake disc in the present invention.

[0031] Figure 7 It is a schematic diagram of the exploded structure of the brake disc and main shaft assembly in the present invention.

[0032] Figure 8 It is a schematic diagram of the cross-section structure of the brake disc and the main shaft assembly in the present invention.

[0033] Figure 9It is a schematic diagram of the decomposed structure of the protection component in the present invention.

[0034] Figure 10 It is a schematic diagram of the exploded structure of some components of the protective assembly in the present invention.

[0035] In the figure, 1. brake caliper assembly; 2. brake disc; 3. spindle assembly; 4. water cooling assembly; 5. protective assembly; 6. brake caliper housing; 7. hydraulic slave cylinder; 8. brake pad; 9. chip removal groove; 10. mounting groove; 11. wear block; 12. voltage sensor; 13. fixing plate; 14. open ring; 15. sealing ring; 16. limit groove; 17. limit protrusion; 18. sealing ring; 19. sealing gasket; 20. mounting ring; 21. mounting cavity; 22. nozzle; 23. micro water pump; 24. , mounting column; 25. Arc-shaped sealing plate; 26. Snap ring; 27. Rubber soft edge; 28. Heat dissipation channel; 29. Broken line grid; 30. Main shaft; 31. Bowl-shaped connector; 32. Main shaft protection cover; 33. Ring piece; 34. Waterproof sheet; 35. Waterproof board; 36. Curled edge; 37. Fixing bracket; 38. Pull-out rod; 39. Stop block; 40. Fixing groove; 41. Limit block; 42. Brush; 43. Screw; 44. Protective plate; 45. Arc-shaped protective sheet; 46. Infrared temperature sensor. DETAILED DESCRIPTION

[0036] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0037] like Figures 1-10 As shown, the electro-hydraulic hybrid brake unit with high safety and coordination includes a brake caliper assembly 1, a brake disc 2, a main shaft assembly 3, a water cooling assembly 4 and a protective assembly 5. The brake caliper assembly 1 is arranged on the vehicle frame, the main shaft assembly 3 is arranged on the main shaft of the corresponding vehicle tire, the brake disc 2 is arranged on the main shaft assembly 3, the upper end of the brake disc 2 is located inside the brake caliper assembly 1, the water cooling assembly 4 is arranged on the brake caliper assembly 1, and the water cooling assembly 4 is located outside the brake disc 2, the protective assembly 5 is arranged on the water cooling assembly 4, and the protective assembly 5 is located on the side of the brake disc 2 close to the vehicle body, and an infrared temperature sensor 46 is provided on the brake caliper assembly 1, and the brake caliper assembly 1, the water cooling assembly 4 and the infrared temperature sensor 46 are all electrically connected to the vehicle's electronic control unit.

[0038] In this embodiment, when the vehicle needs to brake, the brake caliper assembly 1 applies braking force to the brake disc 2 to achieve vehicle braking. The main shaft assembly 3 rotates with the main shaft of the vehicle tire. The brake disc 2 is installed on the main shaft assembly 3 and interacts with the brake caliper assembly 1 during braking. The water cooling assembly 4 is arranged on the brake caliper assembly 1 and is located outside the brake disc 2. It is used to cool the brake disc 2 to prevent the temperature from being too high during braking. The protective assembly 5 is installed on the water cooling assembly 4 and is located on the side of the brake disc 2 close to the vehicle body to play a protective role. The infrared temperature sensor 46 on the brake caliper assembly 1 can detect the temperature of the brake disc 2 and transmit the temperature signal to the vehicle's electronic control unit. The electronic control unit regulates the brake caliper assembly 1 and the water cooling assembly 4 according to the temperature signal to ensure the safety and coordination of the braking process.

[0039] The brake caliper assembly 1 includes a brake caliper housing 6, which is fixed to the vehicle frame. A plurality of hydraulic slave pumps 7 are provided inside the brake caliper housing 6. The plurality of hydraulic slave pumps 7 are divided into two groups of equal number. The two groups of hydraulic slave pumps 7 are symmetrically arranged. A brake pad 8 is provided on the telescopic end of each group of hydraulic slave pumps 7. The two brake pads 8 are respectively located on both sides of the brake disc 2. The hydraulic slave pump 7 is electrically connected to the vehicle's electronic control unit.

[0040] In this embodiment, when the vehicle needs to brake, the vehicle's electronic control unit sends a signal to the hydraulic slave pump 7 in the brake caliper housing 6, and the hydraulic slave pump 7 starts working. Since the hydraulic slave pump 7 is divided into two groups of equal number and symmetrical arrangement, each group of hydraulic slave pumps 7 is provided with a brake pad 8 on the telescopic end. Under the action of the hydraulic slave pump 7, the brake pads 8 on both sides move toward the brake disc 2 respectively until the brake disc 2 is clamped, thereby achieving vehicle braking through friction.

[0041] A plurality of evenly distributed chip grooves 9 are provided on the end face of the brake pad 8 facing the brake disc 2, and the chip grooves 9 are vertically arranged. A mounting groove 10 is provided on the end face of the brake pad 8 away from the brake disc 2, and a wear block 11 and a voltage sensor 12 are provided inside the mounting groove 10. The two ends of the wear block 11 are electrically connected to the voltage sensor 12 through wires, and the voltage sensor 12 is electrically connected to the electronic control unit of the vehicle. A fixing plate 13 is fixed on the brake pad 8, and the two ends of the fixing plate 13 respectively abut against the wear block 11 and the voltage sensor 12.

[0042] In this embodiment, when the brake pad 8 contacts the brake disc 2 for braking, the chip removal groove 9 on the end face of the brake pad 8 facing the brake disc 2 can help discharge debris generated during the braking process to prevent the debris from affecting the braking effect. A wear block 11 and a voltage sensor 12 are provided in the mounting groove 10 on the end face of the brake pad 8 away from the brake disc 2. The two ends of the wear block 11 are electrically connected to the voltage sensor 12 through wires. As the brake pad 8 wears, the wear block 11 is gradually worn away. When it is worn to a certain extent, the contact state between the wear block 11 and the fixed plate 13 changes, resulting in a change in the voltage detected by the voltage sensor 12. The voltage sensor 12 transmits a signal to the vehicle's electronic control unit, prompting that the brake pad 8 needs to be replaced.

[0043] The water cooling assembly 4 includes a nozzle 22, a micro water pump 23, an arc-shaped sealing plate 25, two symmetrical open rings 14 and two symmetrical sealing rings 15. The two sealing rings 15 are made of nitrile rubber. Both ends of the two open rings 14 are provided with mounting posts 24. Both ends of the open rings 14 are arranged on the brake caliper housing 6 through the mounting posts 24. Limiting grooves 16 are provided on the inner end faces of the open rings 14. Limiting protrusions 17 are provided on the outer circles of the two sealing rings 15. The limiting protrusions 17 are located inside the corresponding limiting grooves 16. The sealing rings 15 are located outside the brake disc 2, and a gap is left between the sealing rings 15 and the outer circle of the brake disc 2. The upper ends of the two sealing rings 15 are located between the two brake pads 8. The end faces of the two sealing rings 15 facing each other are provided with sealing rings 18. A sealing gasket 19 is provided between the two open rings 14. The sealing gasket 19 matches the specifications of the two open rings 14. The upper end of the sealing gasket 19 is provided with a mounting ring 20. The mounting ring 2 0 matches the specifications of the nozzle 22, the nozzle 22 is arranged inside the mounting ring 20, and the two open rings 14 are provided with a mounting cavity 21, the mounting cavity 21 matches the specifications of the mounting ring 20 and the nozzle 22, the mounting ring 20 and the nozzle 22 are arranged inside the mounting cavity 21, the nozzle 22 is arranged toward the brake disc 2, the micro water pump 23 is fixed to the brake caliper housing 6, the water inlet end of the nozzle 22 is connected to the water outlet end of the micro water pump 23 through a hose, and the inlet of the micro water pump 23 is connected to the outlet end of the micro water pump 23. The water end is connected to the external vehicle-mounted water tank through a hose. The arc-shaped sealing plate 25 is located between the two sealing rings 15, and the arc-shaped sealing plate 25 is located inside the brake caliper housing 6. Snap rings 26 are provided at both ends of the arc-shaped sealing plate 25. The snap rings 26 match the specifications of the mounting column 24. The two ends of the arc-shaped sealing plate 25 are respectively set on the mounting column 24 through the snap rings 26. Rubber soft edges 27 are provided on both sides of the arc-shaped sealing plate 25, and the rubber soft edges 27 are in contact with the sealing ring 15 on the same side.

[0044] In this embodiment, when the vehicle brakes, the micro water pump 23 draws water from the on-board water tank and transports the water to the nozzle 22 through a hose. The nozzle 22 is set toward the brake disc 2 and sprays water toward the brake disc 2 for cooling. The two open rings 14 are installed on the brake caliper housing 6 through the mounting column 24. A limiting groove 16 is provided inside the brake caliper housing for placing a sealing ring 15 made of nitrile rubber. The limiting protrusion 17 on the outer circle of the sealing ring 15 is located in the limiting groove 16 to ensure the sealing between the open ring 14 and the sealing ring 15. A sealing gasket 19 is provided between the open rings 14 to ensure the sealing between the two open rings 14. A sealing ring 18 is provided on the end face of the two sealing rings 15 facing each other. The sealing ring 15 and the brake disc 2, a gap is left between the outer circles of the brake disc 2, and the tension of the water is used to ensure that the water does not flow out of the gap to the surface of the brake disc 2, affecting the braking ability of the brake disc 2. When the vehicle speed is fast, the water on the brake disc 2 will be filled between the open ring 14 and the sealing ring 18 under the action of centrifugal force, forcing the sealing ring 18 to deform and contact with the outer circle of the brake disc 2, thereby enhancing the sealing effect and achieving a certain braking effect. The arc-shaped sealing plate 25 is located between the two sealing rings 15 and inside the brake caliper housing 6. The snap rings 26 at both ends are installed on the mounting column 24, and the rubber soft edges 27 on both sides contact the sealing ring 15 on the same side to prevent the coolant from flowing out. At the same time, it does not affect the clamping of the brake pad 8, ensuring the normal operation of the water-cooling component 4.

[0045] The brake disc 2 is annular, and a plurality of heat dissipation channels 28 evenly distributed in a circumferential array are provided inside the brake disc 2. The heat dissipation channels 28 are arranged along the radial direction of the brake disc 2, and the heat dissipation channels 28 pass through the brake disc 2. A plurality of zigzag grids 29 are provided inside the heat dissipation channels, and the zigzag grids 29 are arranged along the radial direction of the brake disc 2. The upper end of the brake disc 2 is located between the two brake pads 8. The sum of the thickness of the two open rings 14 and the sealing gasket 19 is equal to the thickness of the brake disc 2. The position of the nozzle 22 corresponds to the heat dissipation channel 28.

[0046] In this embodiment, when the brake disc 2 generates heat during the braking process, the heat is dissipated through the heat dissipation channels 28 that are radially arranged inside the brake disc 2 and evenly distributed in a circumferential array. The heat dissipation channels 28 are provided with zigzag grids 29 that are radially arranged along the brake disc 2 to increase the heat dissipation area. When the water cooling component 4 is working, the nozzle 22 sprays water toward the brake disc 2. The position of the nozzle 22 corresponds to the heat dissipation channel 28. Water can enter the heat dissipation channel 28 to help further dissipate heat. The zigzag grids 29 can increase the residence time of water inside the brake disc 2 to ensure sufficient heat exchange. The upper end of the brake disc 2 is located between the two brake pads 8. The sum of the thickness of the two open rings 14 and the sealing gasket 19 is equal to the thickness of the brake disc 2, ensuring that the brake pad 8 can act on the brake disc 2 without affecting braking.

[0047] The main shaft assembly 3 includes a main shaft 30, a bowl-shaped connecting piece 31, a main shaft protective sleeve 32, an annular sheet 33 and two symmetrical waterproof plates 35. The main shaft 30 is connected to the vehicle's power motor through a corresponding transmission assembly. The bowl-shaped connecting piece 31 is fixed to one end of the main shaft 30 by bolts. The brake disc 2 is fixed on the bowl-shaped connecting piece 31. The main shaft 30 passes through the inside of the brake disc 2. The axis of the main shaft 30 is collinear with the axis of the brake disc 2. The main shaft protective sleeve 32 is sleeved on the main shaft 30. The brake disc 2 is located on the outside of the main shaft protective sleeve 32. An annular sheet 33 is fixed on the annular inner ring of the brake disc 2. An annular waterproof sheet 34 is fixed on the annular inner ring of the annular sheet 33. The waterproof sheet 34 is located The heat dissipation channel 28 is close to the side of the bowl-shaped connector 31, and the annular inner ring of the waterproof sheet 34 is in contact with the main shaft protection sleeve 32. The main shaft protection sleeve 32 and the waterproof sheet 34 are both made of nitrile rubber. The baffle 35 is a semicircular ring, and the cross-section of the baffle 35 is L-shaped. The two baffles 35 are both located on the side of the heat dissipation channel 28 away from the bowl-shaped connector 31. The L-shaped short sides of the two baffles 35 are fixed on one end face of the brake disc 2, and the inner diameter of the circular sleeve formed by the L-shaped short sides of the two baffles 35 is equal to the inner diameter of the brake disc 2. The outer circle of the L-shaped long side of the two baffles 35 is provided with a curling edge 36, and the curling edge 36 faces away from the brake disc 2.

[0048] In this embodiment, the main shaft 30 is connected to the vehicle power motor through the transmission assembly to transmit power to the vehicle tire. The bowl-shaped connector 31 is fixed to one end of the main shaft 30 with bolts and is also used to connect the vehicle tire. The brake disc 2 is fixed on the bowl-shaped connector 31. The main shaft 30 passes through the brake disc 2 and the axes of the two coincide to ensure stable rotation of the brake disc 2. The main shaft protection sleeve 32 is sleeved on the main shaft 30 to prevent water and other liquids from entering the main shaft 30 and affecting the transmission. The annular sheet 33 of the inner ring of the brake disc 2 is fixed with an annular waterproof sheet 34. The waterproof sheet 34 is located at the bottom of the main shaft 30. On the side of the heat dissipation channel 28 close to the bowl-shaped connector 31, its annular inner ring contacts the main shaft protective sleeve 32 made of nitrile rubber. When water flows out of the heat dissipation channel 28, the waterproof sheet 34 can prevent the water from flowing to the side of the tire, avoiding the side of the brake disc 2 close to the tire from getting wet. The water will flow out along the circular sleeve with the same inner diameter as the brake disc 2, which is surrounded by the L-shaped short sides of the two baffles 35, and will be away from the brake disc 2 under the action of the curling edge 36 of the outer circle of the L-shaped long side of the baffle 35, thereby ensuring the safe and coordinated operation of the main shaft 30 and the brake disc 2.

[0049] The protective assembly 5 includes a protective plate 44, two fixing frames 37, two pulling rods 38 and a number of screws 43. The two fixing frames 37 are fixed on the end face of one side of the open ring 14 close to the vehicle body. The two fixing frames 37 are located on the side of the brake disc 2 away from the bowl-shaped connector 31. A fixing groove 40 is provided on the two fixing frames 37. A limiting block 41 is fixed on the two pulling rods 38. The two pulling rods 38 are respectively arranged on the two fixing frames 37 through the cooperation between the limiting blocks 41 and the corresponding fixing grooves 40. The two pulling rods 38 are both arranged along the radial direction of the brake disc 2, and the pulling rods 38 face the brake disc. 2 is provided with bristles 42, a stopper 39 is fixed to the end of the pull rod 38 away from the axis of the brake disc 2, and a number of screws 43 are divided into two groups of equal number. The two groups of screws 43 pass through the corresponding fixing frame 37 and are screwed to the corresponding pull rod 38. The cross section of the protective plate 44 is a fan ring. The two ends of the protective plate 44 are fixed to the fixing frame 37 by screws 43. The protective plate 44 is located between the brake disc 2 and the water-blocking plate 35, and the protective plate 44 is located below the main shaft 30. An arc-shaped protective sheet 45 is provided on the annular outer circle of the protective plate 44, and the arc-shaped protective sheet 45 is located between the protective plate 44 and the brake disc 2.

[0050] In this embodiment, two fixing frames 37 provide support for the entire protective structure, and the pull-out rod 38 cooperates with the fixing groove 40 on the fixing frame 37 through the limit block 41 to achieve adjustable installation. The pull-out rod 38 and the protective plate 44 can be fixed by tightening the screw 43. The bristles 42 on the end face facing the brake disc 2 can clean the debris attached to its surface when the brake disc 2 rotates, preventing the debris from entering the brake system and affecting the braking effect. The protective plate 44 with a fan-shaped cross-section plays a protective role, blocking the external debris, water and other substances from splashing to contaminate the surface of the brake disc 2, and at the same time preventing the cooling water flowing down from the water baffle 35 from splashing on the brake disc 2; the arc-shaped protective plate 45 on the outer circle of the protective plate 44 is located between the protective plate 44 and the brake disc 2, further enhancing the protective effect.

[0051] The working principle of the present invention is as follows: when the vehicle needs to brake, the electronic control unit sends a signal to the hydraulic slave pump 7 in the brake caliper assembly 1, and the two groups of symmetrically arranged hydraulic slave pumps 7 push the brake pads 8 to clamp the brake disc 2, and braking is achieved through friction. The chip grooves 9 on the brake pads 8 discharge the debris generated by braking, and the wear blocks 11 and the voltage sensor 12 monitor the degree of wear of the brake pads 8 in real time. When the wear reaches a certain degree, a replacement prompt is sent to the electronic control unit. The heat generated during the braking process is naturally dissipated through the heat dissipation channels 28 and the internal zigzag grids 29 that are evenly distributed in the internal circumferential array of the brake disc 2 and arranged radially. At the same time, the infrared temperature sensor 46 detects the temperature of the brake disc 2. When the temperature is too high, the electronic control unit controls the micro water pump 23 of the water cooling assembly 4 to pump water from the on-board water tank and spray it onto the brake disc 2 through the nozzle 22. The position of the nozzle 22 corresponds to the heat dissipation channel 28. Water enters the heat dissipation channel 28 to enhance heat dissipation, and the zigzag grid 29 extends the water stop Leave time to promote heat exchange. In the water-cooling component 4, the open ring 14, sealing ring 15, sealing gasket 19 and other components cooperate with each other to ensure that the coolant does not leak, and the gap between the sealing ring 15 and the outer circle of the brake disc 2 uses water tension and centrifugal force to achieve sealing and auxiliary braking. The arc-shaped sealing plate 25 prevents the coolant from flowing out. In the main shaft assembly 3, the main shaft 30 is connected to the power motor to transmit power, and the brake disc 2 is fixed on the bowl-shaped connector 31. The main shaft protection sleeve 32, waterproof sheet 34, and water baffle 35 work together to prevent liquid from entering the main shaft 30 and the key parts of the brake disc 2, ensuring the stable operation of the main shaft 30 and the brake disc 2. In the protective component 5, the fixed frame 37 supports the protective structure, and the bristles 42 on the pull rod 38 clean the debris on the surface of the brake disc 2. The protective plate 44 and the arc-shaped protective sheet 45 prevent external debris from contaminating the brake disc 2 and prevent the coolant from splashing onto the brake disc 2. Each component is coordinated through the electronic control unit to ensure the safe and efficient operation of the electro-hydraulic hybrid brake unit.

[0052] In summary, the cooperation between the brake caliper assembly 1 and the brake disc 2 can provide uniform and stable braking force, ensuring the braking effect. The chip removal groove 9 on the brake pad 8 can discharge debris in time, avoiding the impact of debris on braking friction and improving braking reliability. At the same time, the wear monitoring device can provide real-time feedback on the wear of the brake pad 8 to prevent safety hazards caused by excessive wear.

[0053] By cooperating with the brake disc 2, the spindle assembly 3 and the water cooling assembly 4, the temperature of the brake disc 2 can be quickly reduced by water cooling, thereby avoiding the degradation of braking performance due to high temperature, extending the service life of the brake system, and ensuring stability under frequent braking conditions;

[0054] The main shaft assembly 3, the water cooling assembly 4 and the protective assembly 5 cooperate with each other, and rely on the multiple sealing structures of the water cooling assembly 4 and the multiple protective structures of the main shaft assembly 3 and the protective assembly 5 to block external debris and prevent the coolant from splashing onto the brake disc 2 and affecting the braking effect, thereby fully ensuring the safe operation of the brake system;

[0055] Through the cooperation of the brake caliper assembly 1, the water cooling assembly 4 and the infrared temperature sensor 46, the infrared temperature sensor 46 monitors the temperature of the brake disc 2 in real time and feeds back the signal to the electronic control unit. The electronic control unit intelligently adjusts the working status of the brake caliper assembly 1 and the water cooling assembly 4 according to the temperature data, achieves a dynamic balance between braking and cooling, and improves the overall coordination and safety of the brake unit.

[0056] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. An electro-hydraulic hybrid brake unit with high safety and coordination, comprising a brake caliper assembly (1), a brake disc (2), a spindle assembly (3), a water cooling assembly (4) and a protective assembly (5), characterized in that: The brake caliper assembly (1) is arranged on a vehicle frame, the spindle assembly (3) is arranged on a spindle of a corresponding vehicle tire, the brake disc (2) is arranged on the spindle assembly (3), the upper end of the brake disc (2) is located inside the brake caliper assembly (1), the water cooling assembly (4) is arranged on the brake caliper assembly (1), and the water cooling assembly (4) is located outside the brake disc (2), the protective assembly (5) is arranged on the water cooling assembly (4), and the protective assembly (5) is located on a side of the brake disc (2) close to the vehicle body, the brake caliper assembly (1) is provided with an infrared temperature sensor (46), and the brake caliper assembly (1), the water cooling assembly (4) and the infrared temperature sensor (46) are all electrically connected to an electronic control unit of the vehicle.

2. The electro-hydraulic hybrid brake unit with high safety and coordination according to claim 1, characterized in that: The brake caliper assembly (1) includes a brake caliper housing (6), which is fixed to a vehicle frame. A plurality of hydraulic sub-pumps (7) are provided inside the brake caliper housing (6), and the plurality of hydraulic sub-pumps (7) are divided into two groups of equal number. The two groups of hydraulic sub-pumps (7) are symmetrically arranged. A brake pad (8) is provided on the telescopic end of each group of hydraulic sub-pumps (7). The two brake pads (8) are respectively located on both sides of the brake disc (2). The hydraulic sub-pumps (7) are electrically connected to the electronic control unit of the vehicle.

3. The electro-hydraulic hybrid brake unit with high safety and coordination according to claim 2, characterized in that: The brake pad (8) is provided with a plurality of evenly distributed chip removal grooves (9) on the end surface facing the brake disc (2), and the chip removal grooves (9) are vertically arranged. The brake pad (8) is provided with a mounting groove (10) on the end surface facing away from the brake disc (2), and a wear block (11) and a voltage sensor (12) are provided inside the mounting groove (10). The two ends of the wear block (11) are electrically connected to the voltage sensor (12) through wires, and the voltage sensor (12) is electrically connected to the electronic control unit of the vehicle. A fixing plate (13) is fixed on the brake pad (8), and the two ends of the fixing plate (13) respectively contact the wear block (11) and the voltage sensor (12).

4. The electro-hydraulic hybrid brake unit with high safety and coordination according to claim 3, characterized in that: The water cooling assembly (4) includes a nozzle (22), a micro water pump (23), an arc-shaped sealing plate (25), two symmetrical open rings (14) and two symmetrical sealing rings (15), the two sealing rings (15) are made of nitrile rubber, both ends of the two open rings (14) are provided with mounting posts (24), both ends of the open rings (14) are arranged on the brake caliper housing (6) through the mounting posts (24), the inner end surface of the open ring (14) is provided with a limiting groove (16), the outer circle of the two sealing rings (15) is provided with a limiting protrusion (17), the limiting The protrusion (17) is located inside the corresponding limiting groove (16), the sealing ring (15) is located outside the brake disc (2), and a gap is left between the sealing ring (15) and the outer circle of the brake disc (2). The upper ends of the two sealing rings (15) are located between the two brake pads (8). The end faces of the two sealing rings (15) facing each other are both provided with a sealing ring (18). A sealing gasket (19) is provided between the two open rings (14). The specifications of the sealing gasket (19) and the two open rings (14) are matched. The upper end of the sealing gasket (19) is provided with a mounting ring (20). The mounting ring (2 0) matches the specifications of the nozzle (22), the nozzle (22) is arranged inside the mounting ring (20), the two open rings (14) are each provided with a mounting cavity (21), the mounting cavity (21) matches the specifications of the mounting ring (20) and the nozzle (22), the mounting ring (20) and the nozzle (22) are arranged inside the mounting cavity (21), the nozzle (22) is arranged toward the brake disc (2), the micro water pump (23) is fixed on the brake caliper housing (6), the water inlet end of the nozzle (22) is connected to the water outlet end of the micro water pump (23) through a hose, and the micro water pump (23) is connected to the water outlet end of the micro water pump (23). ) is connected to an external vehicle-mounted water tank through a hose, the arc-shaped sealing plate (25) is located between the two sealing rings (15), and the arc-shaped sealing plate (25) is located inside the brake caliper housing (6), and snap rings (26) are provided at both ends of the arc-shaped sealing plate (25), and the snap rings (26) match the specifications of the mounting column (24), and the two ends of the arc-shaped sealing plate (25) are respectively set on the mounting column (24) through the snap rings (26), and both sides of the arc-shaped sealing plate (25) are provided with rubber soft edges (27), and the rubber soft edges (27) are in contact with the sealing ring (15) on the same side.

5. The electro-hydraulic hybrid brake unit with high safety and coordination according to claim 4, characterized in that: The brake disc (2) is annular, and a plurality of heat dissipation channels (28) uniformly distributed in a circumferential array are provided inside the brake disc (2). The heat dissipation channels (28) are arranged along the radial direction of the brake disc (2), and the heat dissipation channels (28) penetrate the brake disc (2). A plurality of zigzag grids (29) are provided inside the heat dissipation channels, and the zigzag grids (29) are arranged along the radial direction of the brake disc (2). The upper end of the brake disc (2) is located between the two brake pads (8). The sum of the thickness of the two open rings (14) and the sealing gasket (19) is equal to the thickness of the brake disc (2). The position of the nozzle (22) corresponds to the heat dissipation channel (28).

6. The electro-hydraulic hybrid brake unit with high safety and coordination according to claim 5, characterized in that: The spindle assembly (3) includes a spindle (30), a bowl-shaped connecting piece (31), a spindle protective sleeve (32), an annular sheet (33) and two symmetrical water-blocking plates (35). The spindle (30) is connected to the vehicle's power motor through a corresponding transmission assembly. The bowl-shaped connecting piece (31) is fixed to one end of the spindle (30) by bolts. The brake disc (2) is fixed to the bowl-shaped connecting piece (31). The spindle (30) passes through the inside of the brake disc (2). The axis of the spindle (30) is collinear with the axis of the brake disc (2). The spindle protective sleeve (32) is sleeved on the spindle (30). The brake disc (2) is located outside the spindle protective sleeve (32). An annular sheet (33) is fixed to the annular inner ring of the brake disc (2). An annular waterproof sheet (34) is fixed to the annular inner ring of the annular sheet (33). The waterproof sheet (34) is located on the side of the heat dissipation channel (28) close to the bowl-shaped connector (31), the annular inner ring of the waterproof sheet (34) is in contact with the main shaft protection sleeve (32), the main shaft protection sleeve (32) and the waterproof sheet (34) are both made of nitrile rubber, the water baffle (35) is semicircular, and the cross section of the water baffle (35) is L-shaped. The two water baffles (35) are both located on the side of the heat dissipation channel (28) away from the bowl-shaped connector (31), the L-shaped short sides of the two water baffles (35) are fixed on one end face of the brake disc (2), and the inner diameter of the circular sleeve surrounded by the L-shaped short sides of the two water baffles (35) is equal to the inner diameter of the brake disc (2), and the outer circle of the L-shaped long side of the two water baffles (35) is provided with a curling edge (36), and the curling edge (36) faces the direction away from the brake disc (2).

7. The electro-hydraulic hybrid brake unit with high safety and coordination according to claim 6, characterized in that: The protection assembly (5) includes a protection plate (44), two fixing frames (37), two pull rods (38) and a plurality of screws (43), the two fixing frames (37) are fixed on the end face of one side of the open ring (14) close to the vehicle body, the two fixing frames (37) are located on the side of the brake disc (2) away from the bowl-shaped connecting member (31), the two fixing frames (37) are provided with fixing grooves (40), the two pull rods (38) are fixed with limiting blocks (41), the two pull rods (38) are respectively arranged on the two fixing frames (37) through the cooperation between the limiting blocks (41) and the corresponding fixing grooves (40), the two pull rods (38) are arranged along the radial direction of the brake disc (2), and the pull rods (38) are directed toward the brake disc ( 2) is provided with bristles (42), a stopper (39) is fixed to one end of the pull rod (38) away from the axis of the brake disc (2), a plurality of screws (43) are divided into two groups of equal number, the two groups of screws (43) respectively pass through the corresponding fixing frame (37) and are screwed to the corresponding pull rod (38), the cross section of the protective plate (44) is a fan ring, the two ends of the protective plate (44) are fixed to the fixing frame (37) by screws (43), the protective plate (44) is located between the brake disc (2) and the water baffle (35), and the protective plate (44) is located below the main shaft (30), and an arc-shaped protective sheet (45) is provided on the annular outer circle of the protective plate (44), and the arc-shaped protective sheet (45) is located between the protective plate (44) and the brake disc (2).

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