Liquid circulating cooling type automobile brake system

Abstract

The application provides a liquid circulation cooling type automobile braking system, which comprises brake calipers corresponding to brake discs of four wheels respectively, oil supply pipelines and an oil pump, characterized in that the first and second brake pads of each brake caliper are water-cooled brake pads, and a water supply mechanism is arranged on the water-cooled brake pad and connected with the water pump in the water tank through a water supply pipeline. Through the setting and cooperative work of the water-cooled brake pad, the water supply mechanism on the water-cooled brake pad, the air cooling mechanism on the water return pipeline and the water supply monitoring mechanism on the water supply and return pipeline, the first and second brake pads of each brake caliper are effectively cooled, the cooled brake pads do not generate high temperature in long-time friction with the brake discs, the problem that the brake discs and brake pads generate high temperature continuously when the automobile runs on steep and long slope sections is solved fundamentally, and the safety of automobile running is ensured.

Description

Technical Field

[0001] This invention relates to an automotive braking system, and more particularly to a liquid-circulating cooled automotive braking system, belonging to the field of automotive braking technology. Technical Background

[0002] Most existing automotive caliper braking systems use hydraulic braking, which transmits 100% of the power through fluid. When the driver presses the brake pedal, pressure is applied to the brake fluid in the master cylinder. This pressure is then transmitted through pipes to the two pistons on each wheel's brake caliper. The two pistons simultaneously drive the opposing brake pads on the caliper to clamp the brake disc, generating significant friction to slow the vehicle or bring it to a stop. Because these caliper braking systems mostly rely on natural wind for cooling, their cooling effect is insufficient for braking on steep, long inclines in mountainous and high-altitude areas. Although modern vehicles use high-temperature resistant materials for their brake discs and pads, the problem of reduced braking effectiveness and even brake failure due to continuous high-temperature friction from prolonged braking remains. Therefore, it is necessary to improve existing braking systems to ensure driving safety on steep, long inclines. Summary of the Invention

[0003] In view of the existing technology, when a car is driving on steep and long slopes in high-altitude and plateau areas, it is impossible to effectively solve the problem of the brake system cooling, which leads to the continuous high temperature of the brake discs and brake pads, thereby reducing braking performance or even causing brake failure. This invention provides a liquid circulation cooling type car braking system to ensure that the car can drive safely on steep and long slopes.

[0004] This invention is achieved through the following technical solution: a liquid circulation cooling automotive braking system, comprising brake calipers respectively mated to the brake discs of the four wheels, oil supply lines, and an oil pump, characterized in that the brake pads of each brake caliper are water-cooled brake pads, and the water-cooled brake pads are provided with a water supply mechanism. The water supply mechanism is connected to a water pump in a water tank through a water supply line, so that the water pump in the water tank can provide cooling water to the water supply line, the water supply mechanism, and the water-cooled brake pads, thereby cooling the brake pads. This ensures that the cooled brake pads and brake discs do not generate high temperatures during long-term friction, thus ensuring the braking effect of the vehicle.

[0005] Furthermore, the water supply pipeline is equipped with an air-cooling mechanism to further cool the cooling water in the water supply pipeline and enhance the cooling effect.

[0006] Furthermore, the water supply pipeline includes a water tank, a water pump placed in the water tank, an open water pump inlet for drawing water from the water tank, and two water pump outlets. Each of the two outlets is connected to one connector of a three-way pipe fitting with a built-in one-way valve. The other four connectors of the two three-way pipe fittings are connected to the inlets of four water supply pipes. The outlets of the four water supply pipes are connected to the inlets of four corresponding brake calipers. The outlets of the four brake calipers are connected to the inlets of four return water pipes. The outlets of the four return water pipes are connected to the water tank, thus forming the following water supply path: water tank → water pump → three-way pipe fitting → four water supply pipes → four brake calipers → four return water pipes → air-cooling mechanism → water tank.

[0007] Furthermore, the water-cooled brake pad is composed of two symmetrical halves, and a groove is provided on the inner side of one half or on the inner side of the two facing halves. A water supply pipe is embedded in the groove, and the inlet and outlet of the water supply pipe extend out of the water-cooled brake pad and are connected to the water supply pipeline.

[0008] Furthermore, the inner water supply pipe is configured as a circular ring pipe, an elliptical ring pipe, a polygonal ring pipe, or a triangular ring pipe, in order to maximize the cooling area of ​​the inner water supply pipe within the water-cooled brake pads.

[0009] Furthermore, the water supply mechanism on the water-cooled brake pad includes first and second outer ring pipes respectively wound around the outside of the first and second brake pads corresponding to the outside of the brake piston. The inlet of the first outer ring pipe is connected to the water supply pipeline, and the outlet is connected to one end of the first connecting pipe. The other end of the first connecting pipe is connected to the inlet of the second outer ring pipe. The outlet of the second outer ring pipe is connected to the inlet of the second water supply inner pipe on the second brake pad through the second connecting pipe. The outlet of the second water supply inner pipe is connected to the inlet of the first water supply inner pipe on the first brake pad through the third connecting pipe. The outlet of the first water supply inner pipe is connected to the water supply pipeline, thereby forming the following cooling water passage: water tank cooling water → water supply pipeline → first outer ring pipe → first connecting pipe → second outer ring pipe → second connecting pipe → second water supply inner pipe → third connecting pipe → first water supply inner pipe → return water pipeline → air cooling mechanism → water tank.

[0010] Furthermore, the air-cooling mechanism on the water supply pipeline includes a fan, four air-cooled water pipes distributed on the fan's blowing side and their blades, the inlets of the four air-cooled water pipes being connected to the front sections of the four return water pipes respectively, and the outlets of the four air-cooled water pipes being connected to the rear sections of the four return water pipes respectively. After the cooling water from the brake caliper is further cooled by air cooling, it flows back into the water tank to prevent the water in the tank from overheating.

[0011] Furthermore, the four air-cooled water pipes on the blower side are simultaneously designed as loop pipes or serpentine pipes to improve the air-cooling effect.

[0012] Compared with the prior art, the present invention has the following advantages and effects: By adopting the above technical solution, the water-cooled brake pads and their water supply mechanism, air-cooling mechanism on the return water pipe, and water supply monitoring mechanism on the supply and return water pipe can be conveniently set up and work together to ensure that the first and second brake pads of each brake caliper are effectively cooled, ensuring that the cooled brake pads do not generate high temperatures with the brake disc during long-term friction. This fundamentally solves the problem of poor braking effect or even brake failure caused by the continuous high temperature of the brake disc and brake pads when the car is driving on steep and long slopes in high-altitude and plateau areas, thus ensuring that the car can drive safely on steep and long slopes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure after removing the left and right outer covers of the brake pads; Figure 3 for Figure 1 One of the exploded images of a brake caliper; Figure 4 for Figure 2 One of the brake pad structure diagrams; Figure 5 for Figure 4 A schematic diagram of the structure of one of the brake pads and the water supply pipe; Figure 6 for Figure 4 Another side structural diagram; Figure 7 This is a front view of the air-cooling mechanism. Figure 8 A simplified diagram of a water supply monitoring and control agency. Detailed Implementation

[0014] The present invention will be further described below with reference to embodiments, but the scope of protection of the present invention is not limited thereto. Example

[0015] The liquid-circulating cooled automotive braking system provided by this invention includes: brake calipers 1, which are respectively connected to the brake discs of the four wheels; oil supply lines; and an oil pump, wherein: Each brake caliper 1 has a first brake pad 1-14 and a second brake pad 1-13 that are water-cooled. The water-cooled brake pads are equipped with a water supply mechanism, which is connected to a water pump 41 in the water tank 4 via a water supply pipe 2. Figure 1 , Figure 2This allows the water pump 41 in the water tank 4 to provide cooling water to the water supply pipe 2, the water supply mechanism, and the water-cooled brake pads, thereby cooling the first brake pad 1-14 and the second brake pad 1-13. This ensures that the cooled first brake pad 1-14 and the second brake pad 1-13 do not generate high temperatures with the brake disc during long-term friction, thus ensuring the vehicle's braking performance. like Figure 3 The brake caliper 1 includes: left and right exhaust bolts 1-1 and 1-30, left and right outer covers 1-2 and 1-29, first and second outer ring pipes 1-26 and 1-5, spring brackets 1-3, 1-6, 1-24 and 1-28, springs 1-4, 1-7, 1-23 and 1-27, left and right brake pad housings 1-9 and 1-21, left and right pistons 1-10 and 1-20, left and right oil seals 1-11 and 1-19, left and right brake pad guides 1-12 and 1-18, first and second brake pads 1-14 and 1-13, first connecting pipe 1-16, second connecting pipe 1-8, third connecting pipe 1-17, brake fluid conduit 1-15, and multiple oil pipe connecting bolt washers 1-22; like Figure 2 The water supply pipeline 2 includes a water tank 4 and a water pump 41 placed in the water tank 4. The water pump 41 has an open inlet for drawing water from the water tank 4. The water pump has two outlets, each of which is connected to one connector of a three-way pipe joint with an internal one-way valve. The other four connectors of the two three-way pipe joints are connected to the inlets of four water supply pipes 21. The outlets of the four water supply pipes 21 are connected to the inlets of four corresponding brake calipers 1. The outlets of the four brake calipers 1 are connected to the inlets of four return water pipes 22. The outlets of the four return water pipes 22 are connected to the water tank 4, thus forming the following water supply path: water tank 4 → water pump 41 → three-way pipe joint → four water supply pipes 21 → four brake calipers 1 → four return water pipes 22 → air-cooling mechanism 3 → water tank 4. like Figure 5 The water-cooled brake pad is composed of two symmetrical halves, and grooves 1-33 are provided on the inner sides of the two halves facing each other. A water supply inner pipe 1-34 is embedded in the grooves 1-33. The inlet and outlet of the water supply inner pipe 1-34 extend out of the water-cooled brake pad and are connected to the water supply pipeline 2. The water supply inner pipe 1-34 is designed as a circular pipe in order to maximize the cooling area of ​​the water supply inner pipe 1-34 in the water-cooled brake pad. like Figure 4 , Figure 2 , Figure 6The water supply mechanism on the water-cooled brake pads includes: a first outer ring pipe 1-26 and a second outer ring pipe 1-5 respectively wound around the outside of the first brake pad 1-14 and the second brake pad 1-13, corresponding to the outside of the brake pistons 1-10 and 1-20. The inlet 1-31 of the first outer ring pipe 1-26 is connected to the water supply pipe 21, and the outlet is connected to one end of the first connecting pipe 1-16. The other end of the first connecting pipe 1-16 is connected to the inlet of the second outer ring pipe 1-5. The outlet of the second outer ring pipe 1-5 is connected to the inlet of the second inner water supply pipe on the second brake pad 1-13 via the second connecting pipe 1-8. The outlet of the second inner water supply pipe is connected to the inlet of the first inner water supply pipe on the first brake pad 1-26 via the third connecting pipe 1-17. The outlet 1-32 of the first inner water supply pipe is connected to the return water pipe 22, thus forming the following cooling water passage: cooling water from water tank 4 → water supply pipe 21. →First outer ring pipe 1-26→First connecting pipe 1-16→Second outer ring pipe 1-5→Second connecting pipe 1-8→Second water supply inner pipe→Third connecting pipe 1-17→First water supply inner pipe→Return water pipe 22→Water tank 4; As an example, such as Figure 2 , Figure 4 , Figure 6 The return water pipe 22 of the water supply pipe 2 is equipped with an air-cooling mechanism 3 to further air-cool the cooling water in the return water pipe and enhance the cooling effect. The air-cooling mechanism 3 includes: a fan, four air-cooled water pipes 31 distributed on the fan's blowing side, and cooling fins 32 on them. The inlets of the four air-cooled water pipes 31 are respectively connected to the front sections of the four return water pipes 22, and the outlets of the four air-cooled water pipes 31 are respectively connected to the rear sections of the four return water pipes 22. Figure 2 The cooling water from the brake caliper 1 is further cooled by air cooling before flowing back into the water tank 4 to prevent the water in the water tank 4 from heating up and affecting the cooling effect of the brake pads; the four air-cooled water pipes 31 on the blowing side of the fan 3 are simultaneously set as serpentine pipes to improve the air cooling effect. As an example, such as Figure 1 , Figure 6 , Figure 7The water supply pipeline 2 is equipped with a water supply monitoring and control mechanism 5 to monitor the water supply status of the pipeline and control the flow rate and velocity of the cooling water based on the monitoring results. The water supply monitoring and control mechanism 5 includes a conventional controller 5-1 with a low-temperature adjustment knob and scale (for setting the water temperature range of the water tank to 20-50℃) and a high-temperature adjustment knob and scale (for setting the water temperature range of the inner water pipe on the brake pads to 45-75℃). The controller 5-1 is electrically connected to the temperature sensors 5-7 installed on the four brake calipers 1 via a cable 5-6 and a terminal 5-2. Cable 5-6 is electrically connected to the fan motor terminal 5-4 and the water pump motor terminal 5-5 respectively, and is also electrically connected to the push-button switch 5-3 installed in the cab via cable 5-6. This allows the conventional controller 5-1 to collect temperature data from the temperature sensors 5-7 on the four brake calipers 1 and the temperature data from the temperature sensor on the water pump in the water tank 4. The data is then sent to the conventional control program running in the controller 5-1 for calculation and comparison, and the water pump and fan are controlled to operate, thereby achieving automatic control and air cooling of the cooling water and ensuring that the brake pads and water temperature are always maintained within a low range.

[0016] The operation mode of the water supply monitoring and control mechanism 5 is as follows: When braking, the brake pads and brake discs will rise in temperature due to friction. When the temperature signal transmitted by any temperature sensor 5-7 on the brake pads reaches the set temperature value, the controller 5-1 will start the water pump 41 to supply water to the water supply pipe 21, so that the high temperature water in the brake pads will start to flow out through the return water pipe 22 to the air cooling mechanism 3 for heat dissipation and cooling, and then return to the water tank 4. The water pump will stop running when the temperature of the brake pads themselves drops below the set temperature value and the temperature signal transmitted by the sensor 5-7 is lower than the set value of the water temperature in the brake pad water supply pipe, thereby completing the purpose of cooling the brake pads. The second operation mode of the water supply monitoring and control mechanism 5 is as follows: When it is necessary to descend a steep or long slope, the driver presses button 5-3, and the water pump 41 is started through controller 5-1 to supply water to the water supply pipe 21, which in turn delivers cooling water to the inner water supply pipe of the brake pads to prevent the brake pads from rubbing against the brake disc for a long time and causing them to heat up. The water supply monitoring and control mechanism 5 operates in the following mode: When the water temperature in the water tank 4 exceeds the temperature value set by the low temperature adjustment knob, the controller 5-1 will start the fan and water pump 41 to operate and supply water according to the temperature signal sent by the temperature sensor on the water pump 41, so that the cooling water continuously circulates in the water supply pipeline until the water temperature in the water tank 4 drops below the low temperature value set by the low temperature adjustment knob, and then the fan and water pump 41 will stop operating, ensuring that the water temperature in the water tank 4 does not exceed the set high temperature value, and realizing automatic circulation temperature control of the cooling water.

[0017] The water supply monitoring and control mechanism 5 operates in three modes, combining manual and automatic acquisition of relevant sensor data from the entire water circulation cooling system. It can be adapted to single-piston or multi-piston liquid-cooled calipers of automobiles, whether they are fixed calipers, floating calipers, or hybrid calipers.

Claims

1. A liquid-circulating cooled automotive braking system, comprising brake calipers respectively mated to the brake discs of the four wheels, oil supply lines, and an oil pump, characterized in that... Each brake caliper has water-cooled brake pads, and the water-cooled brake pads are equipped with a water supply mechanism, which is connected to a water pump in the water tank through a water supply pipeline.

2. The liquid-circulating cooled automotive braking system according to claim 1, characterized in that... The water supply pipeline includes a water tank, a water pump placed in the water tank, an open water pump inlet for drawing water from the water tank, and two water pump outlets. The two outlets are each connected to one connector of a three-way pipe fitting with an internal one-way valve. The other four connectors of the two three-way pipe fittings are each connected to the inlets of four water supply pipes. The outlets of the four water supply pipes are each connected to the inlets of four corresponding brake calipers. The outlets of the four brake calipers are each connected to the inlets of four return water pipes. The outlets of the four return water pipes are connected to the water tank.

3. The liquid-circulating cooled automotive braking system according to claim 1, characterized in that... The water-cooled brake pad is composed of two symmetrical halves, and a groove is provided on the inner side of one half or the inner side of the two halves facing each other. A water supply pipe is embedded in the groove, and the inlet and outlet of the water supply pipe extend out of the water-cooled brake pad and are connected to the water supply pipeline.

4. The liquid-circulating cooled automotive braking system according to claim 3, characterized in that... The water supply inner pipe is configured as a circular ring pipe, an elliptical ring pipe, a polygonal ring pipe, or a triangular ring pipe.

5. The liquid-circulating cooled automotive braking system according to claim 1, characterized in that... The water supply mechanism on the water-cooled brake pad includes first and second outer ring pipes respectively wound around the outside of the first and second brake pads corresponding to the outside of the brake piston. The inlet of the first outer ring pipe is connected to the water supply pipeline, and the outlet is connected to one end of the first connecting pipe. The other end of the first connecting pipe is connected to the inlet of the second outer ring pipe. The outlet of the second outer ring pipe is connected to the inlet of the second water supply inner pipe on the second brake pad through the second connecting pipe. The outlet of the second water supply inner pipe is connected to the inlet of the first water supply inner pipe on the first brake pad through the third connecting pipe. The outlet of the first water supply inner pipe is connected to the water supply pipeline.

6. The liquid-circulating cooled automotive braking system according to claim 1, characterized in that... The water supply pipeline is equipped with an air-cooling mechanism, which includes: a fan, four air-cooled water pipes distributed on the blowing side of the fan and their blades, the inlets of the four air-cooled water pipes being connected to the front sections of the four return water pipes respectively, and the outlets of the four air-cooled water pipes being connected to the rear sections of the four return water pipes respectively.

7. The liquid-circulating cooled automotive braking system according to claim 6, characterized in that... The four air-cooled water pipes on the blowing side of the fan are simultaneously designed as loop pipes or serpentine pipes.

8. The liquid-circulating cooled automotive braking system according to claim 1, characterized in that... The water supply pipeline is equipped with a water supply monitoring and control mechanism, which includes a controller with a low temperature adjustment knob and scale, a high temperature adjustment knob and scale. The controller is electrically connected to temperature sensors installed on four brake calipers via cables and terminals, and is also electrically connected to the terminals of the fan motor and the water pump motor via cables, and to a push-button switch installed in the cab via cables.

Images