New energy generator replacing automobile extended range engine

Abstract

The invention relates to the technical field of generators, and particularly discloses a new energy generator replacing an automobile extended range engine, which comprises a double-speed motor, a power chain wheel, a power shaft, a ratchet wheel, a flywheel and a generator, the power output end of the double-speed motor is connected with a driving chain wheel, the driving chain wheel is connected with a power chain wheel through a chain, the power chain wheel is fixed to the end of a power shaft, the power shaft is connected with the center of a flywheel through a ratchet wheel, and the flywheel is connected with a generator through a power transmission mechanism. Through the design of double-shaft driving and multi-flywheel energy storage, the continuity and stability of power output are remarkably improved; a one-way transmission structure of the ratchet wheel avoids reverse transmission of power, and the electromagnetic clutch can flexibly control disconnection and connection of power generation.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of generators, in particular to a new energy generator for replacing a range-extending engine of an automobile. BACKGROUND

[0002] With the rapid development of the new energy automobile industry, the range-extending electric vehicle has become one of the market mainstream choices because of the smoothness of pure electric driving and the convenience of fuel supply. The existing range-extending electric vehicles generally adopt a traditional fuel engine as a range-extender core component, but the traditional fuel engine has many disadvantages: on the one hand, the structure of the fuel engine is complex, contains many precise components such as a cylinder, a piston and a crankshaft, and has high manufacturing cost and great maintenance difficulty; on the other hand, the fuel engine has poor fuel economy under a low load condition and is prone to generate more tail gas emissions, which does not meet the environmental protection requirements. In addition, the power output characteristics of the traditional range-extending engine are fixed and difficult to flexibly adjust according to the actual driving conditions of the vehicle, resulting in low energy conversion efficiency.

[0003] Therefore, a new energy generator for replacing a range-extending engine of an automobile becomes an urgent problem to be solved. SUMMARY

[0004] The application aims to provide a new energy generator for replacing a range-extending engine of an automobile, which adopts a structure design of motor driving combined with flywheel energy storage, discards the complex mechanical structure of the traditional fuel engine, has the advantages of simple structure, environmental protection, high efficiency, flexible power output and the like, and can effectively improve the energy utilization efficiency and operation reliability of the range-extending electric vehicle.

[0005] To solve the above technical problems, the technical scheme provided by the application is as follows: a new energy generator for replacing a range-extending engine of an automobile, comprising a double-speed motor, a power sprocket, a power shaft, a ratchet wheel, a flywheel and a generator.

[0006] The power output end of the double-speed motor is connected with a driving sprocket, the driving sprocket is connected with the power sprocket through a chain, the power sprocket is fixed at the end of the power shaft, the power shaft is connected with the center of the flywheel through the ratchet wheel, and the flywheel is connected with the generator through a power transmission mechanism.

[0007] Further, three flywheels are arranged side by side on the power shaft, and each flywheel is connected with the power shaft through a ratchet wheel.

[0008] Further, two power shafts are arranged in parallel, and the power sprocket is arranged at the end of each power shaft.

[0009] Further, the power transmission mechanism comprises an intermediate shaft, an intermediate pulley, a transmission pulley and a power generation pulley, the intermediate shaft is arranged in parallel with the power shaft, one side of each of the flywheels is provided with a first pulley coaxially arranged thereon, the intermediate pulleys are arranged on the intermediate shaft and the number of the intermediate pulleys corresponds to the number of the first pulleys on each power shaft; the first pulleys on the two power shafts correspond to each other in up and down directions and the intermediate pulleys corresponding to the first pulleys are connected through a belt transmission; the transmission pulley and the intermediate pulley are arranged side by side on the intermediate shaft and the transmission pulley and the power generation pulley are connected through a belt transmission.

[0010] Further, the power transmission mechanism comprises an intermediate shaft, an intermediate pulley, a transmission pulley and a power generation pulley, the intermediate shaft is arranged in parallel with the power shaft, one side of each of the flywheels is provided with a first pulley coaxially arranged thereon, the intermediate pulleys are arranged on the intermediate shaft and the number of the intermediate pulleys corresponds to the number of the first pulleys on each power shaft; the first pulleys on the two power shafts correspond to each other in up and down directions and the intermediate pulleys corresponding to the first pulleys are connected through a belt transmission; the transmission pulley and the intermediate pulley are arranged side by side on the intermediate shaft and the transmission pulley and the power generation pulley are connected through a belt transmission.

[0011] Further, the power transmission mechanism comprises an intermediate shaft, an intermediate pulley, a transmission pulley and a power generation pulley, the intermediate shaft is arranged in parallel with the power shaft, one side of each of the flywheels is provided with a first pulley coaxially arranged thereon, the intermediate pulleys are arranged on the intermediate shaft and the number of the intermediate pulleys corresponds to the number of the first pulleys on each power shaft; the first pulleys on the two power shafts correspond to each other in up and down directions and the intermediate pulleys corresponding to the first pulleys are connected through a belt transmission; the transmission pulley and the intermediate pulley are arranged side by side on the intermediate shaft and the transmission pulley and the power generation pulley are connected through a belt transmission.

[0012] The present application has the following advantages compared with the prior art:

[0013] The present application discards the complex mechanical structure of the traditional fuel engine, adopts mature components such as motors, chain wheels and pulleys, has a simple and compact structure, low manufacturing cost, and only needs to check the transmission components and motor state for later maintenance, so that the maintenance difficulty is greatly reduced.

[0014] The present application uses a battery pack to drive a double-speed motor as a power source, replaces the traditional fuel engine, has no tail gas emission in the running process and meets the environmental protection requirements; the spring energy accumulator cooperates with the low speed and high torque of the double-speed motor in the low-speed starting process, reduces the resistance of the double-speed motor in the starting process and reduces the energy consumption.

[0015] The present application improves the continuity and stability of the power output through the design of double-shaft driving and multi-flywheel energy storage; the one-way transmission structure of the ratchet avoids the reverse transmission of the power, and the electromagnetic clutch can flexibly control the connection and disconnection of the generator, so that the generator can supply power to the battery pack.

[0016] The present application adopts the mechanical transmission and energy storage combination mode, reduces the complexity of the electronic control unit, reduces the failure rate, uses mature mechanical design for each transmission component, has good wear resistance and long service life, and can effectively improve the operation reliability of the whole generator system. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a structural schematic view of a new energy generator for replacing a vehicle range extending engine.

[0018] Fig. 2 is a structural schematic view of a ratchet.

[0019] As shown in the figure: 1, double-speed motor, 2, power sprocket, 3, power shaft, 4, ratchet, 5, flywheel, 6, generator, 7, driving sprocket, 8, intermediate shaft, 9, intermediate pulley, 10, transmission pulley, 11, power generation pulley, 12, spring energy accumulator, 13, electromagnetic clutch. DETAILED DESCRIPTION

[0020] In the description of the present application, it needs to be understood that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer", "vertical", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0021] In the description of the present application, "first feature" and "second feature" can include one or more of the features. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features.

[0022] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] The new energy generator for replacing the range extending engine of the automobile will be further described in detail below with reference to the accompanying drawings.

[0024] In combination with the accompanying drawings Figs. 1-2 The present application will be described in detail.

[0025] A new energy generator for replacing the range extending engine of the automobile, comprising a double-speed motor 1, a power sprocket 2, a power shaft 3, a ratchet 4, a flywheel 5 and a generator 6, the connection relationship and specific structure of each part are as follows:

[0026] The double-speed motor 1 is fixedly connected with a driving sprocket 7 at a power output end. The driving sprocket 7 is in transmission connection with a power sprocket 2 through a closed chain, and the power sprocket 2 is fixedly installed at an end of a power shaft 3, so that power is transmitted from the double-speed motor 1 to the power shaft 3. In order to improve the stability and output power of power transmission, two parallel power shafts 3 are arranged, and one power sprocket 2 is installed at an end of each power shaft 3. The two power shafts 3 are connected with the driving sprocket 7 through the same chain, so as to form a double-shaft synchronous driving structure.

[0027] Three flywheels 5 are arranged side by side on each power shaft 3, and each flywheel 5 is connected with the power shaft 3 through a ratchet wheel 4. The ratchet wheel 4 adopts a one-way transmission structure, and only allows the power shaft 3 to drive the flywheel 5 to rotate in a set direction. When the rotating speed of the power shaft 3 is reduced or stopped, the flywheel 5 can continue to rotate by inertia, so as to avoid reverse power transmission. The arrangement of the plurality of flywheels 5 can significantly improve the energy storage capacity and ensure the continuity and stability of power output.

[0028] The flywheel 5 is connected with a generator 6 through a power transmission mechanism, so as to realize the conversion of mechanical energy into electrical energy. Specifically, the power transmission mechanism includes an intermediate shaft 8, an intermediate belt pulley 9, a transmission belt pulley 10 and a power generation belt pulley 11. The intermediate shaft 8 is arranged in parallel with the power shaft 3. Each flywheel 5 is provided with a first belt pulley fixed coaxially therewith and rotating synchronously with the flywheel 5. The intermediate belt pulley 9 is arranged on the intermediate shaft 8, and the number of the intermediate belt pulleys 9 corresponds to the number of the first belt pulleys on each power shaft 3 (i.e. three intermediate belt pulleys 9 are arranged on each power shaft 3). The corresponding first belt pulleys on the two power shafts 3 and the corresponding intermediate belt pulleys 9 are in transmission connection through the same belt, so as to form a group of transmission structures. In this application, the first belt pulley has three, so there are three groups of transmission structures. The transmission belt pulley 10 is fixed on the intermediate shaft 8 in parallel with the intermediate belt pulley 9, and the transmission belt pulley 10 and the power generation belt pulley 11 are in transmission connection through a belt, so as to transmit the power after the three groups of transmission structures to the generator 6.

[0029] The end of each power shaft 3 is provided with a spring energy accumulator 12. The spring energy accumulator 12 can store elastic potential energy when the power shaft 3 accelerates, and release the potential energy when the power shaft 3 starts at low speed, so as to further improve the torque of the double-speed motor at low speed. The power generation belt pulley 11 is provided with an electromagnetic clutch 13, which can control the on-off of the belt transmission according to the working state of the generator 6.

[0030] The specific implementation process of the new energy generator of the application for replacing the range extending engine of the automobile is as follows:

[0031] Three flywheels 5 are set on one power shaft 3, and six flywheels 5 of equal mass are set on two power shafts 3. The power shaft 3 and the flywheel 5 are connected by a ratchet wheel 4, so that the power shaft 3 and the flywheel 5 can rotate at different speeds. When the power shaft 3 does not rotate, the flywheel 5 can also rotate in one direction by inertia. A power sprocket 2 is set on one end of the shaft head of each power shaft 3 as a power wheel. The power wheel and the power shaft 3 are welded together. As long as the power wheel rotates, the power shaft 3 can drive the flywheel 5 to rotate simultaneously. The power sprockets 2 on the two power shafts 3 are connected by a chain, so that as long as the chain rotates, the six flywheels 5 can rotate simultaneously, synchronously, and at the same speed.

[0032] A first belt pulley is arranged on the other side of each flywheel 5 to rotate with the flywheel 5. The first belt pulleys on the two power shafts 3 are connected by a belt, so that the six flywheels 5 can rotate simultaneously, synchronously, and at the same speed by inertia. A double-speed motor 1 is additionally arranged on the chain connecting the power sprockets 2 to drive the power sprocket 2 to rotate (the double-speed motor 1 is arranged to solve the problem of low speed and high torque of the flywheel 5 during startup).

[0033] A belt pulley shaft is additionally arranged beside any two coaxial power shafts 3 as an intermediate shaft 8, which is connected with a generator 6. The intermediate shaft 8 is used as a power transmission shaft for the flywheel 5 and the generator 6, and only has an intermediate belt pulley 9 and a transmission belt pulley 10, without a flywheel 5. The inertial rotation energy of the six flywheels 5 is concentrated on the intermediate shaft 8. A belt is used to connect the flywheel 5 and the generator 6 to drive the generator 6 to rotate and generate electricity. The generator 6 is a low-speed permanent magnet generator 6. An electromagnetic clutch 13 is arranged at the power belt pulley 11 (to reduce the resistance of the flywheel 5 during startup by not driving the generator 6 to rotate, and to further reduce the problem of low speed and high torque of the flywheel 5 during startup by controlling the electronic valve of a spring energy accumulator 12 arranged at the other end of each power shaft 3, so as to rapidly increase the speed of the flywheel 5 and reduce the startup load of the double-speed motor 1). When the flywheel 5 reaches a certain speed, the generator 6 is connected through the electromagnetic clutch 13 to rotate and generate electricity.

[0034] The power generation capacity is determined by the diameter, mass, and rotation speed of the flywheel 5 (i.e., the rotation inertia of the flywheel 5). The battery storage capacity can be set according to the power consumption per 100 kilometers of each vehicle model. The power generation capacity of the generator 6 should be slightly higher than the battery storage capacity of each vehicle model. Thus, the original rule of relying on battery capacity for endurance is changed, and the weight of the vehicle and the cost of the battery are reduced. The power consumption per 100 kilometers of a small car is generally about ten degrees, and a fifteen-kilowatt generator 6 can be set. The extra electricity is used by the double-speed motor 1.

[0035] In this way, the battery can be charged while discharging when the vehicle is running, so that the power battery is kept in a state close to full load for a long time, and the vehicle realizes extended range and endurance. If it is a medium or large vehicle, several flywheels 5 of the same quality and quantity can be added to each power shaft 3, and all flywheels 5 on the two power shafts 3 are connected to the intermediate shaft 8 at the same speed by belts, and the flywheels 5 are connected to the generator 6 by belts and power generation pulleys 11 at different speeds, so that the speed of the generator 6 is always lower than that of the flywheels 5 (which is beneficial to the inertia of the flywheels 5), and the power of the double-speed motor 1 is also increased accordingly. The 12V generator 6 and the 12V battery are cancelled. A 12V transformer is added to the large battery for 12V electrical appliances. In this way, vehicles of various types can realize long-term extended range and endurance.

[0036] In remote areas without power grid or special environment, the present application is a mobile power station. When power generation is not needed, the flywheels 5 lose inertia power and slowly stop running by disconnecting the power supply of the double-speed motor 1 and the electromagnetic clutch 13, and the generator 6 stops generating electricity. When the vehicle is stopped, it can continue to generate electricity and feed the generated electricity into the power grid through the inverter, or feed the generated electricity into the self-use power grid for self-use power.

[0037] The above describes the present application and its embodiments, which are not limited, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired by it, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution can be designed, which should belong to the protection scope of the present application.

Claims

1. A new energy generator that can replace a car range extender engine, characterized in that: The double-speed motor (1), the power sprocket (2), the power shaft (3), the ratchet (4), the flywheel (5) and the generator (6) are included. The power output end of the double-speed motor (1) is connected with the driving sprocket (7), the driving sprocket (7) is connected with the power sprocket (2) through the chain, the power sprocket (2) is fixed on the end of the power shaft (3), the power shaft (3) is connected with the center of the flywheel (5) through the ratchet (4), the flywheel (5) is connected with the generator (6) through the power transmission mechanism.

2. The new energy generator of claim 1, wherein: Three flywheels (5) are arranged on the power shaft (3) in parallel, and each flywheel (5) is connected with the power shaft (3) through the ratchet (4).

3. The new energy generator of claim 2, wherein: Two power shafts (3) are arranged in parallel, and the power sprocket (2) is arranged on the end of each power shaft (3).

4. The new energy generator of claim 3, wherein: The power transmission mechanism includes the intermediate shaft (8), the intermediate belt pulley (9), the transmission belt pulley (10) and the generator belt pulley (11), the intermediate shaft (8) is arranged in parallel with the power shaft (3), one side of each flywheel (5) is provided with the first belt pulley which is coaxially arranged with the flywheel (5), the intermediate belt pulley (9) is arranged on the intermediate shaft (8) and the number of the intermediate belt pulley (9) corresponds to the number of the first belt pulley on each power shaft (3), the first belt pulleys on the two power shafts (3) are connected through the belt transmission, and the intermediate belt pulley (9) corresponding to the first belt pulley is arranged on the intermediate shaft (8), the transmission belt pulley (10) and the generator belt pulley (11) are arranged on the intermediate shaft (8) in parallel, and the transmission belt pulley (10) and the generator belt pulley (11) are connected through the belt transmission.

5. The new energy generator of claim 4, wherein: The spring energy accumulator (12) is arranged on the end of each power shaft (3).

6. The new energy generator of claim 5, wherein: The electromagnetic clutch (13) is arranged on the generator belt pulley (11).

Images