Power supply mode and equipment for electric vehicle
By introducing motor-driven power generation systems and labor-saving gear transmissions into electric vehicles and using generators to provide power, the problem of limited battery power and frequent charging of electric vehicles is solved, and long-term use and efficient power supply of electric vehicles are achieved.
Patent Information
- Application Number
- CN202411922437.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-02-25
AI Technical Summary
Existing electric vehicles rely on batteries as power supply, with limited power, short service time, and prone to spontaneous combustion when the power is exhausted, and require frequent external power charging.
A power supply method for electric vehicles with generators is designed. The power generation system is driven by the motor and the power-saving gear transmission is used to drive the generator to work. The current transmitted by the generator is rectified and regulated by the power controller to use it for the electric vehicle power supply to reduce dependence on external power supply.
It realizes the long-term use of electric vehicles, reduces the frequency of charging external power supplies, and improves the safety and efficiency of electric vehicles.
Smart Images
Figure CN119502766A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a power supply method and equipment for an electric vehicle, in particular to a power supply method and equipment with a power generation system applied to an electric vehicle. Background Art
[0002] Currently, various types of electric vehicles all use batteries as power sources. However, the battery has limited power and cannot be used for a long time. Moreover, when the power is exhausted and an external power source is needed for charging, it is easy to spontaneously combust. Summary of the invention
[0003] In order to overcome the above defects and shortcomings of the power supply method of electric vehicles, the purpose of the present invention is to provide a power supply method and device for electric vehicles with generators that can be used for a long time and is safe and efficient.
[0004] The technical solution adopted by the present invention to solve its technical problem is: The present invention provides a power supply method and device for an electric vehicle, the main body of which includes: a battery, a line group, a start switch, a power controller, and a motor drive power generation system; The battery has a set of wires connected to the power controller; the power controller has a set of wires connected to the start switch, a set of wires connected to the drive motor of the motor-driven power generation system, and a set of wires connected to the generator of the motor-driven power generation system.
[0005] The power supply controller is provided with the function of rectifying and stabilizing the current transmitted from the generator and the function of temporarily storing electricity; the power supply controller is also provided with a port for transmitting current to the outside and an external current starting port.
[0006] The motor-driven power generation system mainly includes a driving motor, a labor-saving gear transmission, and a generator; The rotor of the driving motor is connected to the power input gear of the labor-saving gear transmission, driving the internal gear of the labor-saving gear transmission to operate; the power input gear of the labor-saving gear transmission is not only connected to the driving motor, but also connected to the rotor of the generator by the power output gear, driving the rotor of the generator to rotate; The labor-saving gear transmission body comprises a gear box, a power input gear, a transmission gear and a power output gear.
[0007] The gearbox is divided into a power input end gearbox and a power output end gearbox, and both are provided with a plurality of shaft holes.
[0008] The power input gear bearing is installed on the corresponding bearing hole of the gear box.
[0009] The power input gear comprises a main body, a gear shaft, a gear hub and gear teeth; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is provided with a power input spline shaft, a bearing mounting shaft body and a large shaft body in sequence, and the diameter of the power input spline shaft is less than the diameter of the bearing mounting shaft body and less than the diameter of the large shaft body; the rear end shaft is provided with a large shaft body and a mounting shaft body in sequence, and the diameter of the large shaft body is larger than the diameter of the mounting shaft body; the gear hub is a cylinder; the gear teeth are arranged on the side of the gear hub; the teeth are similar to rectangular teeth, and the end of the teeth is arc-shaped; the tooth thickness of the gear teeth is less than the tooth groove width in the corresponding tooth groove.
[0010] The transmission gear bearings are mounted on corresponding bearing holes of the gear box.
[0011] The transmission gear is a double-layer gear, and the main body includes a gear shaft, a gear hub, a power input gear layer, and a power output gear layer; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the center positions of the two end faces of the gear hub; the gear shaft is provided with a large shaft body and a bearing mounting shaft body, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the gear hub is a cylinder; the tooth layer of the power input gear and the tooth layer of the power output gear are arranged on the side of the gear hub; the teeth of the power input gear layer are a T-shaped tooth similar to a T-shaped tooth, and the protrusions on both sides of the tooth end are similar to semi-cylinders; the number of teeth of the power output tooth layer is the same as the number of teeth of the power input tooth layer, the tooth is a rectangular parallelepiped tooth, and the tooth end is arc-shaped, and the tooth thickness in the corresponding tooth groove is smaller than the tooth groove width.
[0012] The teeth of the power output tooth layer are similar to rectangular parallelepiped teeth, and the ends of the teeth are arc-shaped; the tooth thickness of the gear teeth in the corresponding tooth groove is smaller than the tooth groove width.
[0013] The power output gear bearing is installed on the corresponding bearing hole of the gear box.
[0014] The power output gear, the main body includes, a front end shaft, a power output shaft, a gear hub, and a power input gear layer; the front end shaft and the power output shaft are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is sequentially provided with a bearing mounting shaft body and a large shaft body, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the power output shaft is sequentially provided with a large shaft body, a bearing mounting shaft body, and a power output spline shaft, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the gear hub is a cylinder; the power input gear layer is arranged on the side of the gear hub; the teeth of the power input gear layer are similar to an inverted T-shaped teeth, and the protrusions on both sides of the end of the teeth are similar to semi-cylinders.
[0015] The number of teeth of the layer of teeth that the power input gear, the transmission gear and the power output gear can mesh with each other is the same.
[0016] The more transmission gears the labor-saving gear transmission has, the greater and more stable the output power is.
[0017] The power input gear, transmission gear, and power output gear have the same number of teeth in the meshing tooth layers; therefore, the speed of one rotation of the gears is also the same. When the power input gear rotates one axis, the power output gear also rotates one circle.
[0018] In the labor-saving gear transmission, power is input from the power input gear, passes through the transmission gear, and finally output from the power output gear.
[0019] The power of the driving motor is input from the power input gear of the labor-saving gear transmission, passes through the transmission gear, and is finally output from the power output gear to the generator.
[0020] When the starting switch is turned on, the power controller transmits current from the battery through the driving motor connected to the motor-driven power generation system to start the driving motor. The driving motor drives the generator to generate electricity through the labor-saving gear transmission. At this time, the motor-driven power generation system enters the working state; the generator has a set of wires connected to the power controller. When the power controller detects that the generator has current transmitted, it no longer uses the current transmitted from the battery, and switches to using the current transmitted by the generator; the current transmitted by the generator is processed by the power controller and then transmitted to various electronic components, and the battery is charged; when the battery is not used for a long time and the power is naturally lost, resulting in the inability to start the driving motor, the starting switch can be turned on, and the current transmitted from the external current starting port can start the driving motor.
[0021] The beneficial effects of the present invention are: the power supply of the electric vehicle has a long service life, the motor-driven power generation system is used to provide a continuous current for the electric vehicle, and there is no need to frequently use an external power supply to charge the battery. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the present invention Figure 2 This is a simplified diagram of the power input gear. Figure 3 This is a schematic diagram of the power input gear power output gear layer and the transmission gear power output gear layer Figure 4 This is a simplified diagram of the transmission gear Figure 5 This is a simplified schematic diagram of the power input gear layer of the transmission gear and the power output gear power input gear layer Figure 6This is a schematic diagram of the power output gear Figure 7 This is a simplified diagram of power transmission when the power input gear teeth begin to engage the transmission gear. Figure 8 This is a simplified schematic diagram of power transmission when the power input gear teeth and the teeth of the meshing transmission gear are balanced. Fig. 9 This is a simplified diagram of power transmission when the power input gear teeth are about to engage the separation transmission gear. DETAILED DESCRIPTION
[0023] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0024] The present invention provides a power supply method and device for an electric vehicle, which is only an embodiment, and the main body includes: a battery, a line group, a start switch, a power controller, and a motor drive power generation system; The battery has a set of wires connected to the power controller; the power controller has a set of wires connected to the start switch, a set of wires connected to the drive motor of the motor-driven power generation system, and a set of wires connected to the generator of the motor-driven power generation system.
[0025] The power supply controller is provided with the function of rectifying and stabilizing the current transmitted from the generator and the function of temporarily storing electricity; the power supply controller is also provided with a port for transmitting current to the outside and an external current starting port.
[0026] The motor-driven power generation system mainly includes a driving motor, a labor-saving gear transmission, and a generator; The rotor of the driving motor is connected to the power input gear of the labor-saving gear transmission, driving the internal gear of the labor-saving gear transmission to operate; the power input gear of the labor-saving gear transmission is not only connected to the driving motor, but also connected to the rotor of the generator by the power output gear, driving the rotor of the generator to rotate; The labor-saving gear transmission body comprises a gear box, a power input gear, a transmission gear and a power output gear.
[0027] The gearbox is divided into a power input end gearbox and a power output end gearbox, and both are provided with a plurality of shaft holes.
[0028] The power input gear bearing is installed on the corresponding bearing hole of the gear box.
[0029] The power input gear comprises a main body, a gear shaft, a gear hub and gear teeth; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is provided with a power input spline shaft, a bearing mounting shaft body and a large shaft body in sequence, and the diameter of the power input spline shaft is less than the diameter of the bearing mounting shaft body and less than the diameter of the large shaft body; the rear end shaft is provided with a large shaft body and a mounting shaft body in sequence, and the diameter of the large shaft body is larger than the diameter of the mounting shaft body; the gear hub is a cylinder; the gear teeth are arranged on the side of the gear hub; the teeth are similar to rectangular teeth, and the end of the teeth is arc-shaped; the tooth thickness of the gear teeth is less than the tooth groove width in the corresponding tooth groove.
[0030] The transmission gear bearings are mounted on corresponding bearing holes of the gear box.
[0031] There are three transmission gears, namely double-layer transmission gear 1, double-layer transmission gear 2, and double-layer transmission gear 3, which are installed on the corresponding shaft holes of the gear box.
[0032] The double-layer transmission gear 1, double-layer transmission gear 2, and double-layer transmission gear 3, the transmission gear is a double-layer gear, the main body includes a gear shaft, a gear hub, a power input tooth layer, and a power output tooth layer; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the two end face center positions of the gear hub; the gear shaft is provided with a large shaft body and an installation shaft body, and the diameter of the large shaft body is larger than the diameter of the installation shaft body; the gear hub is a cylinder; the tooth layer of the power input gear and the tooth layer of the power output gear are arranged on the side of the gear hub; the teeth of the power input tooth layer are a T-shaped tooth similar to a T-shaped tooth, and the protrusions on both sides of the tooth end are similar to semi-cylinders; the number of teeth of the power output tooth layer is consistent with the number of teeth of the power input tooth layer, the tooth is a rectangular tooth, and the tooth end is arc-shaped, and the tooth thickness in the corresponding tooth groove is smaller than the tooth groove width.
[0033] The power output gear bearing is installed on the corresponding bearing hole of the gear box.
[0034] The power output gear, the main body includes, a front end shaft, a power output shaft, a gear hub, and a power input gear layer; the front end shaft and the power output shaft are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is sequentially provided with a bearing mounting shaft body and a large shaft body, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the power output shaft is sequentially provided with a large shaft body, a bearing mounting shaft body, and a power output spline shaft, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the gear hub is a cylinder; the power input gear layer is arranged on the side of the gear hub; the teeth of the power input gear layer are a T-shaped tooth similar to a round tooth, and the protrusions on both sides of the end of the tooth are similar to semi-cylinders.
[0035] The power is input from the power input gear, passes through the transmission gear, and is finally output from the power output gear.
[0036] In order to more intuitively reflect the beneficial transmission effect of the present invention, the gears are driven by each other in conjunction with the accompanying drawings.
[0037] In order to more conveniently and intuitively reflect the size of power input and power output, only the transmission of power of the teeth that mesh with each other is demonstrated, and the number of teeth on the power input gear, transmission gear, and power output gear is consistent; like Figure 7 As shown, when one tooth of the power output tooth layer of the power input gear rotates to a position where it can engage with one tooth of the power input tooth layer of the double-layer transmission gear 1, this position is the engagement point, which clearly reflects that the power arm length of the power input spline shaft of the power input gear is equal to the resistance arm length of the power output spline shaft of the power output gear, the resistance arm length on the power output tooth layer of the power input gear is equal to the power arm length on the power input tooth layer of the double-layer transmission gear 1, the resistance arm length on the power output tooth layer of the double-layer transmission gear 1 is less than the power arm length of the power input tooth layer of the double-layer transmission gear 2, the resistance arm length on the power input tooth layer of the double-layer transmission gear 2 is equal to the power arm length of the power input tooth layer of the double-layer transmission gear 3, and the resistance arm length of the power output tooth layer of the double-layer transmission gear 3 is less than the power arm length of the power input tooth layer of the power output gear; Hypothesis: The length of the power arm of the power input gear is A, and the length of the resistance arm is B; the length of the power arm of the double-layer transmission gear 1 is C, and the length of the resistance arm is D; the length of the power arm of the double-layer transmission gear 2 is E, and the length of the resistance arm is F; the length of the power arm of the double-layer transmission gear 3 is G, and the length of the resistance arm is H; the length of the power arm of the power output gear is I, and the length of the resistance arm is J; then A = J, B = C, D < E, F = G, H < I. The total length of the power arm is A + C + E + G + I, and the total length of the resistance arm is B + D + F + H + J. For the convenience of calculation, the equal power arms and resistance arms are omitted. Since A = J, B = C, F = G, D < E, H < I, then E + I > D + H. In summary, the total length of the power arm is greater than the total length of the resistance arm. Therefore, the output power is greater than the input power.
[0038] As Figure 8 shown, it can be clearly seen that when a tooth of the power output tooth layer of the power input gear rotates to be parallel to a tooth of the power input tooth layer of the engaged double-layer transmission gear 1, it also reaches the middle of the distance between the engagement point and the separation point of the tooth engagement, which clearly reflects that the length of the power arm of the power input spline shaft of the power input gear is equal to the length of the resistance arm of the power output spline shaft of the power output gear, the length of the resistance arm on the power output tooth layer of the power input gear is less than the length of the power arm on the power input tooth layer of the double-layer transmission gear 1, the length of the resistance arm on the power output tooth layer of the double-layer transmission gear 1 is equal to the length of the power arm on the power input tooth layer of the double-layer transmission gear 2, the length of the resistance arm on the power output tooth layer of the double-layer transmission gear 2 is less than the length of the power arm on the power input tooth layer of the double-layer transmission gear 3, and the length of the resistance arm on the power output tooth layer of the double-layer transmission gear 3 is equal to the length of the power arm on the power input tooth layer of the power output gear; Hypothesis: The length of the power arm of the power input gear is A1, and the length of the resistance arm is B1; the length of the power arm of the transmission gear 1 is C1, and the length of the resistance arm is D1; the length of the power arm of the transmission gear 2 is E1, and the length of the resistance arm is F1; the length of the power arm of the transmission gear 3 is G1, and the length of the resistance arm is H1; the length of the power arm of the power output gear is I1, and the length of the resistance arm is J1; then A1 = J1, B1 < C1, D1 = E1, F1 < G1, H1 = I1. The total length of the power arm is A1 + C1 + E1 + G1 + I1, and the total length of the resistance arm is B1 + D1 + F1 + H1 + J1. For the convenience of calculation, the equal power arms and resistance arms are omitted. Since A1 = J1, B1 < C1, D1 = E1, F1 < G1, H1 = I1, then B1 + F1 < C1 + G1. In summary, the total length of the power arm is greater than the total length of the resistance arm. Therefore, the output power is greater than the input power.
[0039] As Fig. 9As shown in the figure, when a tooth of the power input gear rotates to a position where it can be separated from the tooth of the meshing transmission gear, this position is the separation point, which clearly shows that the length of the power arm of the power input spline shaft of the power input gear is equal to the length of the resistance arm of the power output spline shaft of the power output gear. The length of the resistance arm on the power output tooth layer of the power input gear is equal to the length of the power arm on the power input tooth layer of the double-layer transmission gear 1. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 1 is less than the length of the power arm on the power input tooth layer of the double-layer transmission gear 2. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 2 is equal to the length of the power arm on the power input tooth layer of the double-layer transmission gear 3. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 3 is less than the length of the power arm on the power input tooth layer of the power output gear; Assumption: The length of the power arm of the power input gear is A2, and the resistance arm is B2; The length of the power arm of the double-layer transmission gear 1 is C2, and the resistance arm is D2; The length of the power arm of the double-layer transmission gear 2 is E2, and the resistance arm is F2; The length of the power arm of the double-layer transmission gear 3 is G2, and the resistance arm is H2; The length of the power arm of the power output gear is I2, and the resistance arm is J2; Then A2 = J2, B2 = C2, D2 < E2, F2 = G2, H2 < I2. The total length of the power arm is A2 + C2 + E2 + G2 + I2, and the total length of the resistance arm is B2 + D2 + F2 + H2 + J2. For the convenience of calculation, the equal power arms and resistance arms are omitted. Since A2 = J2, B2 = C2, F2 = G2, D2 < E2, H2 < I2, therefore E2 + I2 > D2 + H2.
[0040] In summary, the total length of the power arm is greater than the total length of the resistance arm. Therefore, the output power is greater than the input power.
[0041] In summary, the more double-layer transmission gears there are, the greater the output power.
[0042] The number of teeth of the meshing tooth layers of the above-mentioned power input gear, transmission gear, and power output gear is the same; therefore, the rotation speed of the gears in one week is also the same. When the power input gear rotates one shaft, the power output gear also rotates one week.
[0043] It can be seen that the labor-saving gear transmission has the following characteristics: The rotation speed of the power input gear can be equal to the rotation speed of the power output gear.
[0044] A relatively small input power can output a very large power.
[0045] According to the two characteristics of the above-mentioned labor-saving gear transmission, a relatively small-power driving motor drives a relatively large-power generator through a labor-saving gear transmission. The electricity generated by the relatively large-power generator is transmitted to the power controller. The power controller rectifies and stabilizes the transmitted current, and then distributes it to various electronic components and the driving motor. The power controller also has the function of temporarily storing electric energy. The driving motor only uses the electricity transmitted to the power controller by the battery at the beginning. After the driving motor is started, when the power controller detects that the generator has current transmitted, it uses the current transmitted by the generator to work preferentially. Not only does it no longer use the battery power, but when the power controller detects that the battery power is reduced to the set value, it will charge the battery.
[0046] When the starting switch is turned on, the power controller transmits current from the battery through the driving motor connected to the motor-driven power generation system to start the driving motor. The driving motor drives the generator to generate electricity through the labor-saving gear transmission. At this time, the motor-driven power generation system enters the working state; the generator has a set of wires connected to the power controller. When the power controller detects that the generator has current transmitted, it no longer uses the current transmitted from the battery, and switches to using the current transmitted by the generator; the current transmitted by the generator is processed by the power controller and then transmitted to various electronic components, and the battery is charged; when the battery is not used for a long time and the power is naturally lost, resulting in the inability to start the driving motor, the starting switch can be turned on, and the current transmitted from the external current starting port can start the driving motor.
[0047] The invention has a simple and reasonable structure and a wide application range, and can well solve the problem that when a battery is used as a power source for an electric vehicle, the use time is short and the charging often relies on an external power source.
[0048] The above are merely preferred embodiments for illustration, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall fall within the protection scope of the present invention.
Claims
1. A power supply method and device for an electric vehicle, characterized in that the main body include: Batteries, wire sets, start switches, power controllers, motor-driven power generation systems; The battery has a set of wires connected to the power controller; The power controller has a set of wires connected to the start switch, a set of wires connected to the driving motor of the motor-driven power generation system, and a set of wires connected to the generator of the motor-driven power generation system; The power supply controller is provided with the function of rectifying and stabilizing the current transmitted from the generator and the function of temporarily storing electricity; the power supply controller is also provided with a port for transmitting current to the outside and a port for starting external current; The motor-driven power generation system mainly includes a driving motor, a labor-saving gear transmission, and a generator; The rotor of the driving motor is connected to the power input gear of the labor-saving gear transmission, driving the internal gear of the labor-saving gear transmission to operate; the power input gear of the labor-saving gear transmission is not only connected to the driving motor, but also connected to the rotor of the generator by the power output gear, driving the rotor of the generator to rotate; In the labor-saving gear transmission, power is input from the power input gear, passes through the transmission gear, and finally output from the power output gear; The power of the driving motor is input from the power input gear of the labor-saving gear transmission, passes through the transmission gear, and is finally output from the power output gear to the generator; When the starting switch is turned on, the power controller transmits current from the battery through the driving motor connected to the motor-driven power generation system to start the driving motor. The driving motor drives the generator to generate electricity through the labor-saving gear transmission. At this time, the motor-driven power generation system enters the working state; the generator has a set of wires connected to the power controller. When the power controller detects that the generator has current transmitted, it no longer uses the current transmitted from the battery, and switches to using the current transmitted by the generator; the current transmitted by the generator is processed by the power controller and then transmitted to various electronic components, and the battery is charged; when the battery is not used for a long time and the power is naturally lost, resulting in the inability to start the driving motor, the starting switch can be turned on, and the current transmitted from the external current starting port can start the driving motor.
2. According to claim 1, a power supply method and device for an electric vehicle, characterized in that: The labor-saving gear transmission can not only make a smaller power output a huge power, but also make the speed of the power input gear equal to the speed of the power output gear.
3. According to claim 1, a power supply method and device for an electric vehicle, characterized in that: The motor-driven power generation system uses a relatively small-power drive motor to drive a relatively large-power generator through a labor-saving gear transmission.