Rotating shaft synchronous power generation mechanism and electric control system thereof

Abstract

The utility model relates to a rotating shaft synchronous power generation mechanism and an electric control system thereof, and belongs to the field of electric energy recycling, the rotating shaft synchronous power generation mechanism is arranged on a rotating shaft and comprises a coaxial motor, and a rotor of the coaxial motor is coaxially arranged on the outer wall of the rotating shaft. A stator coil of the coaxial motor is coaxially arranged on the periphery of the rotor, and the stator coil outputs electric energy recycled in the speed reduction process of the rotating shaft. The electric control system of the rotating shaft synchronous power generation mechanism carries out power supply management on the rotating shaft synchronous power generation mechanism. The energy recovery device can recover energy in the speed reduction process of the rotating shaft, and the energy utilization efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy recovery and utilization, in particular to a rotating shaft synchronous power generation mechanism and an electric control system thereof. Background Art

[0002] New energy electric vehicles, electric unicycles, and two- and three-wheeled electric bicycles have already captured a significant share of the new energy vehicle market. Their advantages, including environmental friendliness, energy efficiency, cost savings, low noise levels, and no regular maintenance costs associated with gasoline-powered vehicles, have earned them government subsidies and widespread promotion, securing a significant market share. However, existing electric vehicles often utilize mechanical braking, which results in a loss of energy during braking that is converted into brake heat.

[0003] With the recent development of smart cars, mechanisms and systems that harness brake energy for power generation have emerged. However, these systems are limited to the automotive sector. Existing brake energy recovery mechanisms often use gears or belts to transfer the power from the rotating axle to a generator for power generation. This mechanism suffers from mechanical transmission losses and is not easily applicable to other fields.

[0004] Therefore, it is necessary to develop a rotating shaft synchronous power generation mechanism and its electronic control system to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of the utility model is to provide a rotating shaft synchronous power generation mechanism and an electric control system thereof, which can recover energy during the deceleration process of the rotating shaft and improve the energy utilization efficiency.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The utility model discloses a rotating shaft synchronous power generation mechanism, which is arranged on a rotating shaft and comprises a coaxial motor, wherein the rotor of the coaxial motor is coaxially arranged on the outer wall of the rotating shaft, the stator coil of the coaxial motor is coaxially arranged on the periphery of the rotor, and the stator coil outputs the electric energy recovered during the deceleration process of the rotating shaft.

[0008] Furthermore, the number of the coaxial motors is more than two and they are coaxially connected in series on the rotating shaft.

[0009] Furthermore, the rotating shaft is the drive shaft of the electric car, a drive motor is arranged in the middle of the drive shaft and wheels are connected at both ends, and the two coaxial motors are respectively arranged on the drive shaft and located on both sides of the drive motor; the outer shell of the coaxial motor is fixedly connected to the bottom surface of the four-wheel frame.

[0010] Furthermore, the rotating shaft is the motor shaft of the rear wheel of the electric bicycle, both ends of the motor shaft extend outward and protrude from the electric bicycle frame, and the two coaxial motors are respectively arranged at both ends of the motor shaft.

[0011] Furthermore, the electric bicycle frame is provided with rear seat footrests above the protruding end of the motor shaft, and the housing of the coaxial motor is fixed on the bottom surface of the rear seat footrests.

[0012] Furthermore, the rotating shaft is a propeller shaft of a rotary-wing UAV, the coaxial motor is arranged at the bottom end of the propeller shaft, and the coaxial motor housing is fixed to the bottom of the common base of the UAV body.

[0013] An electronic control system for a rotating shaft synchronous power generation mechanism, used for power management of the rotating shaft synchronous power generation mechanism described in any one of the above items, includes a rectifier and voltage regulation module, a power generation control module and a brake signal sensor, the rectifier and voltage regulation module is connected between the coaxial motor and the power generation control module, the brake signal sensor collects the braking signal of the rotating shaft and feeds it back to the power generation control module, and the power generation control module outputs electrical energy to a battery.

[0014] The brake signal sensor includes a light brake signal sensing unit and a heavy brake signal sensing unit, and both the light brake signal sensing unit and the heavy brake signal sensing unit feed back signals to the power generation control module.

[0015] The output terminal of the power generation control module is also electrically connected to the current distribution module of the rotating shaft host device, and the current distribution module supplies power to other electrical components.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are:

[0017] The present invention provides a synchronous power generation mechanism for a rotating shaft. By directly coaxially setting the rotor of the coaxial motor on the outer wall of the rotating shaft, the torque and speed of the rotating shaft are directly used to generate electricity and recover energy during braking. Compared with the existing method of driving the generator through a transmission component, this reduces energy transmission losses and improves energy recovery efficiency. In addition, by connecting multiple coaxial motors in series on the same rotating shaft, the recovery power can be increased, and a higher recovery efficiency can be achieved during a short braking process. In order to facilitate the installation of the coaxial motor, the motor shaft of the rear wheel of the electric bicycle is appropriately extended to both sides, and two coaxial motors are symmetrically set for power recovery. By reasonably setting the rear seat footrest, on the one hand, the two ends of the motor shaft extending therefrom are protected from above, and on the other hand, installation support is provided for the coaxial motor. The coaxial motor is set on the rotary-wing drone to recover the excess energy generated during its deceleration process. It can also be recycled and charged during flight, which can greatly increase the flight time of the rotary-wing drone.

[0018] The electronic control system of this novel rotating shaft synchronous generator mechanism, through the configuration of a rectifier and voltage regulator module and a power generation control module, can rationally recover the electrical energy generated by the coaxial motor. The provision of a brake signal sensor ensures that the power generation control module recovers electrical energy based on the braking state, avoiding additional burden. By providing a light brake signal sensor unit and a heavy brake signal sensor unit, mechanical braking provides a safety backup, ensuring brake energy recovery while improving safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of embodiment 1 of the rotating shaft synchronous power generation mechanism of the utility model;

[0021] Figure 2 This is a schematic diagram of embodiment 2 of the rotating shaft synchronous power generation mechanism of the utility model;

[0022] Figure 3 This is a schematic diagram of embodiment 3 of the rotating shaft synchronous power generation mechanism of the utility model;

[0023] Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure of the middle propeller shaft;

[0024] Figure 5 This is a schematic diagram of the electrical control system of the rotating shaft synchronous power generation mechanism of the present invention.

[0025] Explanation of the accompanying symbols: 1. Four-wheel frame; 2. Motor; 3. Drive shaft; 4. Wheel; 5. Coaxial generator; 6. Electric bicycle frame; 601. Rear seat footrest; 7. Hub motor; 8. Motor shaft; 9. UAV body; 901. Common base; 10. Rotor motor; 11. Propeller shaft. DETAILED DESCRIPTION

[0026] The core of the utility model is to provide a rotating shaft synchronous power generation mechanism and an electric control system thereof, which can recover energy during the deceleration process of the rotating shaft, thereby improving energy utilization efficiency.

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] With reference to the accompanying drawings, Figure 1 This is a schematic diagram of embodiment 1 of the rotating shaft synchronous power generation mechanism of the utility model; Figure 2 This is a schematic diagram of embodiment 2 of the rotating shaft synchronous power generation mechanism of the utility model; Figure 3 This is a schematic diagram of embodiment 3 of the rotating shaft synchronous power generation mechanism of the utility model; Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure of the middle propeller shaft; Figure 5 This is a schematic diagram of the electrical control system of the rotating shaft synchronous power generation mechanism of the present invention.

[0030] In one embodiment, Figure 1 and Figure 2 As shown, the present invention's rotating shaft synchronous power generation mechanism and its electronic control system are mounted on the rotating shaft and include a coaxial motor 5. The rotor of the coaxial motor 5 is coaxially mounted on the outer wall of the rotating shaft and is embedded in the outer wall of the rotating shaft using magnetic steel. The stator coil of the coaxial motor 5 is coaxially mounted on the outer periphery of the rotor and outputs the electrical energy recovered during the deceleration of the rotating shaft.

[0031] By directly coaxially arranging the rotor of the coaxial motor 5 on the outer wall of the rotating shaft, the torque and speed of the rotating shaft are directly used to generate electricity and recover energy during braking. Compared with the existing method of driving the generator through transmission components, the energy transmission loss is reduced and the energy recovery efficiency is improved.

[0032] Specifically, if Figure 1 and Figure 2 As shown, there are two or more coaxial motors 5 which are coaxially connected in series on the rotating shaft.

[0033] By connecting multiple coaxial motors 5 in series on the same rotating shaft, the recovery power can be increased and a higher recovery efficiency can be achieved during a short braking process.

[0034] Example 1

[0035] like Figure 1As shown, the rotating shaft is the electric vehicle's drive shaft 3. A drive motor 2 is mounted in the middle of the drive shaft 3 and connected to wheels 4 at both ends. Two coaxial motors 5 are mounted on the drive shaft 3, one on each side of the drive motor 2. Specifically, the coaxial motors 5 are low-speed brushless generators. The housing base of the coaxial motors 5 is fixedly connected to the bottom surface of the four-wheeled vehicle frame 1.

[0036] When the electric vehicle brakes, the drive motor 2 no longer outputs power, and the electric vehicle moves forward by inertia. The wheels 4 drive the drive shaft 3 to rotate and generate mechanical energy. The rotation of the drive shaft 3 drives the rotor poles of the coaxial motor 5 to rotate synchronously, interacting with the stator coil arranged outside the drive shaft 3. The rotating magnetic field cuts the conductor of the stator coil, generating an induced electromotive force, so that the mechanical energy of the drive shaft 3 is converted into electrical energy of the coaxial motor 5.

[0037] Example 2

[0038] like Figure 2 As shown, the rotating shaft is the motor shaft 8 of the rear wheel of the electric bicycle. Both ends of the motor shaft 8 extend outward and protrude from the electric bicycle frame 6. Two coaxial motors 5 are respectively arranged at both ends of the motor shaft 8.

[0039] In order to facilitate the installation of the coaxial motor 5, the motor shaft 8 of the rear wheel of the electric bicycle is appropriately extended to both sides, and two coaxial motors 5 are symmetrically arranged to recover electric energy.

[0040] Specifically, if Figure 1 As shown, the electric bicycle frame 6 is provided with rear footrests 601 above the protruding ends of the motor shaft 8. The rear footrests 601 are arranged horizontally on the outside of the lower end of the electric bicycle frame 6 and provide upper protection for both ends of the protruding motor shaft 8. The housing of the coaxial motor 5 is fixed to the bottom surface of the rear footrests 601.

[0041] By properly arranging the rear seat footrest 601 , on the one hand, upper protection is provided for both ends extending from the motor shaft 8 , and on the other hand, installation support is provided for the coaxial motor 5 .

[0042] Example 3

[0043] like Figure 3 and Figure 4 As shown, the rotating axis is the propeller shaft 11 of the rotary-wing drone. The coaxial motor 5 is mounted at the bottom end of the propeller shaft 11, with the rotor portion of the coaxial motor 5 directly mounted on the bottom of the propeller shaft 11. The upper portion of the propeller shaft 11 is located within the rotor motor 10. During normal ascending and hovering, the rotor motor 10 outputs speed and torque to the propeller shaft 11. The housing of the coaxial motor 5 is fixed to the bottom of the common base 901 of the drone body 9. The rotor motor 10 is mounted on the top of the common base 901, and the coaxial motor 5 is mounted on the bottom of the common base 901.

[0044] The coaxial motor 5 is provided on the rotary-wing UAV to recover the excess energy generated during its deceleration process, and can also be recycled and charged during flight, which can greatly improve the flight time of the rotary-wing UAV.

[0045] The utility model also discloses an electric control system for a rotating shaft synchronous power generation mechanism, such as Figure 5 As shown, the power management system for the rotating shaft synchronous power generation mechanism described in any of the above embodiments includes a rectifier and voltage regulator module, a power generation control module, and a brake signal sensor. The rectifier and voltage regulator module is connected between the stator coil output end of the coaxial motor 5 and the power generation control module. The rectifier and voltage regulator module sorts, boosts, and stabilizes the AC power output by the stator coil of the coaxial motor 5 for later use. The brake signal sensor collects the brake signal of the rotating shaft and feeds it back to the power generation control module. The brake signal sensor can collect the brake control signal issued by the operator. The power generation control module outputs electrical energy to the battery for charging.

[0046] By setting up the rectifier and voltage regulation module and the power generation control module, the electric energy generated by the coaxial motor 5 can be reasonably recovered; by setting up the brake signal sensor, it can be ensured that the power generation control module recovers electric energy according to the braking state to avoid causing additional burden.

[0047] Specifically, the brake signal sensor includes a light brake signal sensor unit and a heavy brake signal sensor unit, both of which feed back signals to the power generation control module. Corresponding to the two recovery modes, when the light brake signal sensor unit detects a relatively small braking signal from the operator's brake handle or pedal, the power generation control module initiates charging. The coaxial motor 5, which has an output load, converts the mechanical energy of the rotating shaft into electrical energy while also electromagnetically braking the rotating shaft, achieving a braking effect. In another mode, when the operator applies a large braking action using the brake handle or pedal, both the light brake signal sensor unit and the heavy brake signal sensor unit sense a braking signal, indicating emergency braking. In this case, the power generation control module initiates charging, the coaxial motor 5 has an output load, and electromagnetic braking is performed. Furthermore, the vehicle's main control system controls the operation of mechanical braking devices such as disc brakes to ensure braking safety.

[0048] By setting up a light brake signal sensing unit and a heavy brake signal sensing unit, and using mechanical braking for safety protection, it is possible to ensure brake energy recovery while improving safety performance.

[0049] Specifically, if Figure 5As shown, the output terminal of the power generation control module is also electrically connected to the current distribution module of the rotating shaft host device, and the current distribution module supplies power to other electrical components.

[0050] When the battery is fully charged or nearly fully charged, the recovered electric energy is directly supplied to the power-consuming components through the current distribution module, thereby improving the efficiency of electric energy utilization.

[0051] In summary, the present invention's synchronous rotating shaft power generation mechanism, by directly coaxially setting the rotor of the coaxial motor 5 on the outer wall of the rotating shaft, directly utilizes the torque and speed of the rotating shaft to generate electricity and recover energy during braking. Compared with the existing method of driving the generator through a transmission component, it reduces energy transmission losses and improves energy recovery efficiency. In addition, by connecting multiple coaxial motors 5 in series on the same rotating shaft, it is possible to increase the recovery power and achieve a higher recovery efficiency during a short braking process. To facilitate the installation of the coaxial motor 5, the motor shaft 8 of the rear wheel of the electric bicycle is appropriately extended to both sides, and two coaxial motors 5 are symmetrically set to recover electric energy. By reasonably setting the rear seat footrest 601, on the one hand, the two ends of the motor shaft 8 extending from the top are protected, and on the other hand, installation support is provided for the coaxial motor 5. The coaxial motor 5 is set on the rotor drone to recover the excess energy generated during its deceleration process, and can also be recycled and charged during flight, which can significantly increase the flight time of the rotor drone.

[0052] The electric control system of the rotating shaft synchronous power generation mechanism of the present invention can reasonably recover the electric energy generated by the coaxial motor 5 through the setting of the rectifier and voltage regulation module and the power generation control module; through the setting of the brake signal sensor, it can ensure that the power generation control module recovers electric energy according to the braking state, avoiding causing additional burden. By setting a light brake signal sensing unit and a heavy brake signal sensing unit, mechanical braking is used for safety protection, which can ensure that the brake energy is recovered while improving the safety performance. When the battery is fully charged or nearly fully charged, the recovered electric energy is directly supplied to the power-consuming components through the current distribution module, thereby improving the efficiency of electric energy utilization.

[0053] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0054] It should be noted that all components in the technical solution of this application require necessary additional facilities for water supply, oil supply, electricity supply and gas supply for driving and / or control. If there is no further explanation, it is assumed that the existing technology is used and equipped, and no special explanation is required.

[0055] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A rotating shaft synchronous power generation mechanism, arranged on a rotating shaft, characterized in that: The invention comprises a coaxial motor (5), wherein the rotor of the coaxial motor (5) is coaxially arranged on the outer wall of the rotating shaft, the stator coil of the coaxial motor (5) is coaxially arranged on the periphery of the rotor, and the stator coil outputs the electric energy recovered during the deceleration process of the rotating shaft.

2. The rotating shaft synchronous power generation mechanism according to claim 1, characterized in that: The number of the coaxial motors (5) is more than two and they are coaxially connected in series on the rotating shaft.

3. The rotating shaft synchronous power generation mechanism according to claim 1 or 2, characterized in that: The rotating shaft is a drive shaft (3) of the electric vehicle; a drive motor (2) is provided in the middle of the drive shaft (3) and is connected to wheels (4) at both ends; two coaxial motors (5) are respectively provided on the drive shaft (3) and are located on both sides of the drive motor (2); and the housings of the coaxial motors (5) are fixedly connected to the bottom surface of the four-wheel frame (1).

4. The rotating shaft synchronous power generation mechanism according to claim 1 or 2, characterized in that: The rotating shaft is a motor shaft (8) of the rear wheel of an electric bicycle, both ends of the motor shaft (8) extend outwards and protrude from the electric bicycle frame (6), and the two coaxial motors (5) are respectively arranged at both ends of the motor shaft (8).

5. The rotating shaft synchronous power generation mechanism according to claim 4, characterized in that: The electric bicycle frame (6) is provided with rear seat pedals (601) above the protruding end of the motor shaft (8), and the housing of the coaxial motor (5) is fixed on the bottom surface of the rear seat pedals (601).

6. The rotating shaft synchronous power generation mechanism according to claim 1 or 2, characterized in that: The rotating shaft is a propeller shaft (11) of a rotary-wing UAV, the coaxial motor (5) is arranged at the bottom end of the propeller shaft (11), and the housing of the coaxial motor (5) is fixed to the bottom of a common base (901) of the UAV body (9).

7. An electric control system for a rotating shaft synchronous power generation mechanism, characterized in that: The invention is used for power management of a rotating shaft synchronous power generation mechanism as described in any one of claims 1 to 6, comprising a rectifier and voltage regulator module, a power generation control module and a brake signal sensor, wherein the rectifier and voltage regulator module is connected between the coaxial motor (5) and the power generation control module, the brake signal sensor collects the brake signal of the rotating shaft and feeds it back to the power generation control module, and the power generation control module outputs electrical energy to a battery.

8. The electric control system of the rotating shaft synchronous power generation mechanism according to claim 7, characterized in that: The brake signal sensor includes a light brake signal sensing unit and a heavy brake signal sensing unit, and both the light brake signal sensing unit and the heavy brake signal sensing unit feed back signals to the power generation control module.

9. The electric control system of the rotating shaft synchronous power generation mechanism according to claim 7, characterized in that: The output terminal of the power generation control module is also electrically connected to the current distribution module of the rotating shaft host device, and the current distribution module supplies power to other electrical components.

Images