CN102501773A - Power generation device matched with automobile brake - Google Patents

Abstract

The object of the present invention is to provide a kind of power generation device that cooperates with automobile brake, comprises brake pedal, piston, generator, capacitor, vehicle-mounted accumulator, described generator comprises rotor and stator, and brake pedal connects piston through flexible pipe, and piston Connect the generator, the capacitor and the on-board battery are connected in parallel and then connected to the generator. The invention avoids the influence of generator work on the normal driving speed of the automobile. When braking, a part of the kinetic energy can be converted into electrical energy for storage and reuse. While saving energy, it can also enhance the braking effect of the braking system, reduce the wear intensity of the braking system, and increase the service life of the braking system.

Description

A power generating device cooperating with automobile brakes

technical field

The invention relates to a power generating device, in particular to a power generating device applied to automobiles.

Background technique

At present, there are more and more cars on the road. The energy saving and emission reduction of cars is a major focus of today's society, and it is a problem that needs to be solved as soon as possible. The principle of the brake system on the car is to create a huge friction force, convert the kinetic energy of the car into heat energy, and dissipate it into the air. If a part of the kinetic energy of the car is converted into electric energy when braking, it can not only achieve a certain effect of energy saving and emission reduction, but also prolong the service life of the braking system. The patent authorization announcement number is CN 201726237U, and the name is "brake generator". A brake generator located on the outside of the automobile axle is provided. The inner side of the generator includes balls, magnet groups and power connectors. However, due to the very compact structural design of modern cars, this patent is difficult to realize: there is no place outside the axle of the car to install the "brake generator". And so on are not resolved. For the patent No. ZL 200720147334.7, the patent named "Brake Brake Power Generation Device" provides a brake brake power generation device, including brake power generation brake, charge and discharge regulator, charge and discharge memory, the rotor shaft of the brake power generation brake and the motor vehicle. The power output shaft is matched by gears, but where the brake generator brake is installed, where the gears are fixed, and how to combine the rotor shaft of the brake generator brake with the power output shaft of the motor vehicle during braking are not explained. For the patent with application number 03137467.7 and the name "Energy Recycling Method" provides a brake power generation energy storage device, the outer ring is the wheel of the motor vehicle, when braking, push the transmission wheel of the brake power generation device to make it contact the inner ring of the wheel, When braking, the inner ring of the wheel drives the generator transmission wheel to rotate and causes the power generation device to generate electricity. However, the space between the wheel and the power output shaft of a modern motor vehicle is very small. Where is the transmission wheel of the brake power generation device fixed and how does it contact the inner ring of the wheel? , and the position of the transmission wheel of the brake generator and the transmission wheel of the generator conflicts with the position of the brake calipers, which is difficult to realize.

Contents of the invention

The object of the present invention is to provide a power generating device that is matched with automobile brakes and converts a part of the remaining kinetic energy during braking into electric energy.

The purpose of the present invention is achieved like this:

The present invention is a power generation device matched with automobile brakes, which is characterized in that it includes a brake pedal, a piston, a generator, a capacitor, and a vehicle battery, the generator includes a rotor and a stator, the brake pedal is connected to the piston through a hose, and the piston Connect the generator, the capacitor and the on-board battery are connected in parallel and then connected to the generator.

The present invention may also include:

1. The generator is installed on the rim of the wheel and placed around the brake disc. The piston is connected to the stator of the generator. When the brake pedal is stepped on, the brake pedal pushes the piston to move, and the piston pushes the stator of the generator and the rotor of the generator. corresponding to the position to generate electricity.

2. It also includes gears and ring gears. The generator is located on the inner side of the brake disc. The generator is connected to the piston and the gear respectively. The ring gear is installed on the brake disc. When the brake pedal is stepped on, the brake pedal pushes the piston to move, and the piston pushes The engine and the gear make the gear mesh with the ring gear, and the brake disc drives the generator to generate electricity.

The advantage of the present invention is that: the present invention avoids the influence of the work of the generator on the normal driving speed of the automobile. When braking, a part of the kinetic energy can be converted into electric energy for storage and reuse. While saving energy, it can also enhance the braking effect of the braking system, reduce the wear intensity of the braking system, and increase the service life of the braking system.

Description of drawings

FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention;

Fig. 2 is a schematic side view of Embodiment 1 of the present invention;

FIG. 3 is a schematic structural diagram of Embodiment 2 of the present invention;

Fig. 4 is a schematic side view of Embodiment 2 of the present invention;

Fig. 5 is a circuit diagram of the present invention.

Detailed ways

The present invention is described in more detail below in conjunction with accompanying drawing example:

Implementation mode 1:

1, 2, 5, the braking system is composed of brake calipers 12, piston 4, hose 9, brake master cylinder 7, and brake pedal 10. The master brake cylinder 7, the brake hose 9 and the piston 4 form a hydraulic system, and the brake hose 9 is filled with brake oil. When the driver steps on the brake pedal 10, pressure is applied to the brake fluid in the master cylinder 7, and the brake fluid transmits the pressure to the piston 4 of the brake caliper through the brake hose 9, and the piston 4 drives the brake caliper 12 to clamp the brake disc 5, resulting in huge friction to slow down or stop the vehicle.

The present invention is made up of wheel rim 1, generator outer rotor 2, stator 3, piston 6, brake generator master cylinder 8, hose 9, brake pedal 10, as shown in Figures 1 and 2. Equally, brake generating set master cylinder 8, flexible pipe 9 and piston 6 form a set of hydraulic system, and the flexible pipe 9 is full of brake oil. The wheel rim 1 is the support structure of the common tire, which rotates together with the tire and also plays a transmission role, and is fixed on the power output shaft of the automobile chassis by the horn device. The outer rotor 2 of the generator is made of cast iron, stainless steel and permanent magnets. The shell of the outer rotor of the generator is made of cast iron. The stainless steel ring is fixed on the cast iron shell. According to the size of the wheel, the size, power and The number of poles, and then paste the corresponding permanent magnet on the stainless steel ring. The outer rotor 2 is bonded to the wheel rim 1 by superglue, so that it rotates with the wheel rim. If the distance between the wheel rim 1 and the brake caliper 4 is relatively large, the outer rotor 2 can be designed as a winding type, that is, it is composed of cast iron, iron core and winding. Put it in the slot of the core. The generator stator 3 is connected with the piston 6 through a connecting rod, and the piston is fixed on the horn of the car, so that when the car turns, that is, when the two front wheels turn, the generator stator and rotor can rotate synchronously with the wheels without affecting the generator normal work. The stator 3 includes a stator core and windings. Through motor design and calculation, it is determined that there is an air gap of about 0.5 mm between the generator stator 3 and the outer rotor 2 . The piston 6 is connected with the master cylinder 8 of the brake generator through a flexible pipe. When the car is not in the braking state and runs normally, the generator stator 3 is separated from the outer rotor 2, so as to avoid increasing the resistance of the car running and not affecting the normal running speed of the car. During braking, as long as the driver steps on the brake pedal 10, the piston 6 drives the stator to move left and enters the working area, and the generator starts to generate electricity. Option 1 also designed the motor metal cover 11 at the same time to prevent dust, rainwater, etc. from contacting the windings or permanent magnets of the stator and rotor of the generator, so as to avoid the occurrence of faults such as short circuit and demagnetization.

When the automobile is running normally, the generator stator 3 is not in the working area, which will not affect the running speed of the automobile. When the driver steps on the brake pedal 10, the master cylinder 8 of the braking power generation device drives the piston 6, so that the piston 6 pushes the generator stator 3 to move to the left and enters the working area, and the generator enters the working state, converting part of the kinetic energy during braking into electrical energy. The three-phase alternating current generated by the generator is connected to the on-board battery through a rectification circuit, and the on-board battery is charged by direct current. As shown in FIG. 5 , the rectification circuit is composed of a generator 17 , a diode 19 , a capacitor 20 and an on-board storage battery 21 . Two of the capacitors are respectively used to filter out the rectified low-frequency fluctuating voltage and the high-frequency fluctuating voltage.

The power generating device of this specific embodiment is made up of wheel rim 1, generator outer rotor 2, stator 3, piston 6, master cylinder 8 of braking power generation device, hose 9, brake pedal 10. The wheel rim 1 is the support structure of the common tire, which rotates together with the tire and also plays a transmission role, and is fixed on the power output shaft of the automobile chassis by the horn device. The generator outer rotor 2 is composed of cast iron, stainless steel and permanent magnets. The outer casing of the generator outer rotor 2 is made of cast iron. The stainless steel ring is fixed on the cast iron casing. According to the size of the wheel, the size and power of the generator are designed and determined. and the number of poles, and then paste the corresponding permanent magnet on the stainless steel ring. The outer rotor 2 is bonded to the wheel rim 1 by superglue, so that it rotates together with the wheel rim 1 . The generator stator 3 is connected with the piston 6 through a connecting rod, and the piston is fixed on the horn of the car, so that when the car turns, that is, when the two front wheels turn, the generator stator and rotor can rotate synchronously with the wheels without affecting the generator normal work. The stator 3 includes a stator core and windings. Through motor design and calculation, it is determined that there is an air gap of about 0.5 mm between the generator stator 3 and the outer rotor 2 . The piston 6 is connected with the master cylinder 8 of the brake generator through a flexible pipe 9 . When the car is not in the braking state and runs normally, the generator stator 3 is separated from the outer rotor 1, so as to avoid increasing the resistance of the car running and not affecting the normal running speed of the car. When braking, the piston 6 drives the stator 3 to move left into the working area, and the generator starts to generate electricity. The three-phase alternating current from the generator is connected to the on-board battery through a rectification circuit, and the on-board battery is charged by direct current. Refer to Figure 5 for the rectification circuit, where two capacitors are used to filter out the rectified low-frequency fluctuation voltage and high-frequency fluctuation voltage respectively. Also designed motor metal cover 11 simultaneously, prevents dust, rainwater etc. from contacting with the winding or permanent magnet of generator stator and rotor, avoids the generation of failures such as short circuit, demagnetization.

Referring to Figures 1, 2, and 5, if the distance between the wheel rim 1 and the brake caliper 4 is relatively large, the outer rotor 2 can be designed as a winding type, that is, it is composed of cast iron, iron core and winding, and the iron core is formed by laminating silicon steel sheets , fixed on the cast iron shell, and the winding is placed in the slot of the iron core. Other structures and working principles are the same as above.

Implementation mode 2:

The present invention is made up of the gear ring 15 of brake disc 5, transmission gear set, gear 16, generator 17, piston 13, automobile horn 14 and flexible pipe 9, as shown in Figure 3,4. Automobile brake disc 5 rotates with wheel. The gear ring 15 and the gear 16 of the transmission gear set can be made of relatively soft materials, so that the structure is not too hard, and the transition when the transmission is started is guaranteed to be smoother. The gear ring 15 is fixedly connected with the brake disc 5, and the gear ring 15 is located in the middle of the brake disc 5, so as not to affect the work of the brake calipers. The gear 16 is coaxially connected with the generator 17 rotor. The generator 17 can be a mature small permanent magnet generator, the rotor adopts a surface-mounted magnetic type, and the stator is a three-phase winding. The piston 13 adopts a product similar to the piston of an automobile brake caliper, and is connected with the brake power generation hydraulic system through the flexible pipe 9 to drive the generator to work. Generator 17 is connected together with piston 13 and is fixedly connected with automobile horn 14 again, and in like manner, generating set can rotate synchronously with wheel when turning.

Brake disc 5 rotates together with wheel when automobile is running, and the gear ring 15 and gear 16 of transmission gear set disengage, prevent from affecting automobile running speed. Equally, when braking, the piston 13 pushes the generator to move to the left and enters the working area, that is, the gear ring 15 and the gear 16 are coupled, and the gear ring 15 transmits kinetic energy to the gear 16, and the gear 16 drives the generator 17 to work to generate electric energy. The pushing range of the piston 13 just makes the transmission gear ring 15 and the gear 16 coupled. Similar to Embodiment 1, the rectification circuit shown in FIG. 5 is connected to charge the on-board storage battery.

The power generating device of this specific embodiment is made up of the gear ring 15 of brake disc 5, transmission gear set, gear 16, generator 17, piston 13, automobile horn 14 and flexible pipe 9. Automobile brake disc 5 rotates with wheel. The gear ring 15 and the gear 16 of the transmission gear set can be made of relatively soft materials, so that the structure is not too hard, and the transition when the transmission is started is guaranteed to be smoother. The gear ring 15 is fixedly connected with the brake disc 5, and the gear ring 15 is located in the middle of the brake disc 5, so as not to affect the work of the brake calipers. The gear 16 is coaxially connected with the generator 17 rotor. The generator 17 can be a mature small permanent magnet generator, the rotor adopts a surface-mounted magnetic type, and the stator is a three-phase winding. The piston 13 adopts a product similar to the piston of an automobile brake caliper, and is connected with the brake power generation hydraulic system through the flexible pipe 9 to drive the generator to work. Generator 17 is connected together with piston 13 and is fixedly connected with automobile horn 14 again, and in like manner, generating set can rotate synchronously with wheel when turning. The generator 13 outputs three-phase alternating current, and charges the on-vehicle battery through the rectification circuit shown in FIG. 5 .

Claims (3)

1. A power generating device matched with automobile brakes, characterized in that it includes a brake pedal, a piston, a generator, a capacitor, and a vehicle battery, and the generator includes a rotor and a stator, and the brake pedal is connected to the piston by a flexible pipe, and the piston Connect the generator, the capacitor and the on-board battery are connected in parallel and then connected to the generator. 2. A power generating device cooperating with automobile brakes according to claim 1, characterized in that: the generator is installed on the rim of the wheel and placed around the brake disc, and the piston is connected to the stator of the generator. When the brake pedal is pressed, the brake pedal pushes the piston to move, and the piston pushes the stator of the generator to correspond to the position of the rotor of the generator to generate electricity. 3. A power generating device matched with automobile brakes according to claim 1, characterized in that: it also includes a gear and a ring gear, the generator is located on the inner side of the brake disc, the generator is connected with the piston and the gear respectively, and the gear The ring is installed on the brake disc. When the brake pedal is stepped on, the brake pedal pushes the piston to move, the piston pushes the engine and the gear and makes the gear mesh with the ring gear, and the brake disc drives the generator to generate electricity.

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