CN214929035U

CN214929035U - Range-extending type electric automobile

Info

Publication number: CN214929035U
Application number: CN202121713659.3U
Authority: CN
Inventors: 武君
Original assignee: Shenzhen Dousuo Technology Co ltd
Current assignee: Shenzhen Dousuo Technology Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2021-11-30
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses an extend range type electric automobile, including extend range ware, clutching mechanism and power battery, the extend range ware includes engine and motor, the motor includes stator and relative the stator pivoted rotor, the stator includes the coil, the coil with power battery electric connection, the rotor with the engine is connected through the pivot transmission, the pivot passes through clutching mechanism and is connected with a axletree transmission, the engine passes through the pivot drive the motor electricity generation and charges power battery, power battery supplies power to the motor and passes through the pivot, clutching mechanism drive the axletree rotates, the utility model discloses extend range type electric automobile passes through the pivot connection engine with the motor and constitutes extend range ware, both can charge power battery and increase continuation of the journey, also can the helping hand drive promotes the power of car, the whole structure is simple, the cost is low and the performance is good.

Description

Range-extending type electric automobile

Technical Field

The utility model relates to the technical field of automobiles, especially, relate to an increase form electric automobile.

Background

With the development of society, the problems of limited petroleum resources and environmental pollution are increasingly highlighted, so that electric automobiles are more and more emphasized. However, the power battery is prone to aging and the battery capacity is prone to attenuation at low temperature, so that the range of the pure electric vehicle is significantly limited, and therefore the extended-range electric vehicle with the auxiliary power unit is produced.

The range-extended electric automobile drives the generator to generate electricity through the engine, charges the power battery in the running process of the automobile and increases the endurance mileage of the automobile. Compared with other hybrid electric vehicles, the range-extended electric vehicle has a simpler configuration system, more reliable performance and less cost; compared with a pure electric vehicle, the range-extended electric vehicle has driving range without worry and lower cost, and is one of the products with the greatest industrialization prospect.

However, in the conventional range-extended electric vehicle, the range extender (i.e. the engine and the generator) is only used for charging the power battery to improve the driving range, and the improvement of the vehicle power performance is ignored.

SUMMERY OF THE UTILITY MODEL

Accordingly, an extended range electric vehicle capable of effectively improving the power performance of the vehicle is provided.

The utility model provides an increase form electric automobile, includes journey ware, clutching mechanism and power battery, the journey ware includes engine and motor, the motor includes the stator and relative stator pivoted rotor, the stator includes the coil, the coil with power battery electric connection, the rotor with the engine passes through pivot transmission and connects, the pivot passes through clutching mechanism is connected with an axletree transmission, the engine passes through the pivot drive motor electricity generation is right power battery charges, power battery is right the motor power supply is passed through pivot, clutching mechanism drive the axletree rotates.

Furthermore, a transmission mechanism is connected between the clutch mechanism and the axle, and the transmission mechanism is a transmission shaft, a transmission gear or a transmission chain.

Further, the transmission mechanism is in speed reduction transmission, and the transmission ratio is smaller than 1.

Further, the pivot is perpendicular to the axle, and the transmission mechanism comprises at least two bevel gears which are meshed with each other.

Further, the pivot is parallel to the axle, and the transmission mechanism at least comprises two gears which are axially parallel.

Further, the clutch mechanism is a clutch transmission assembly, and when the pivot is coupled with the transmission mechanism, the motor drives the axle to rotate or the engine and the motor drive the axle to rotate together.

Further, still include with the driving motor of power battery electric connection.

Further, the driving motor is in transmission connection with the axle, and when the pivot and the axle are coupled through the clutch mechanism, the motor and the driving motor drive the axle to rotate together or the engine, the motor and the driving motor drive the axle to rotate together.

Furthermore, the driving motor is in transmission connection with another axle, the axle is a front axle, and the other axle is a rear axle; or, the axle is a rear axle and the other axle is a front axle, and four-wheel drive is formed on the whole.

Further, the driving motor is connected with the other axle through a gear transmission mechanism.

Compared with the prior art, the utility model discloses increase form electric automobile passes through the pivot with engine and motor and connects and constitute the journey extension ware, and the pivot of journey extension ware passes through clutching mechanism coupling or disconnection with the axletree, and when the pivot was disconnected with the axletree, the journey extension ware can increase the continuation of journey mileage to power battery charging; when the pivot is coupled with the axle, the range extender can transmit power to the axle to assist driving, the power of the automobile is improved, the whole structure is simple, the cost is low, and the performance is good.

Drawings

Fig. 1 is a schematic view of an embodiment of the extended range electric vehicle of the present invention.

Fig. 2 is a block diagram of the extended range electric vehicle shown in fig. 1.

Fig. 3 is a schematic view of another embodiment of the extended range electric vehicle of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. One or more embodiments of the present invention are illustrated in the accompanying drawings to provide a more accurate and thorough understanding of the disclosed embodiments. It should be understood, however, that the present invention may be embodied in many different forms and is not limited to the embodiments described below.

The same or similar reference numerals in the drawings of the utility model correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

As shown in fig. 1-2, an extended range electric vehicle according to an embodiment of the present invention includes a power battery 10, a driving motor 20, a range extender 30, and a clutch mechanism 40.

The power battery 10 is preferably a lithium battery as a power source of the entire automobile. The power end of the driving motor 20 is electrically connected with the power battery 10, and the output end is connected with the axle 50. The axle 50 can be a front axle or a rear axle, and when the driving motor 20 is connected with the rear axle, a rear drive is formed; when the driving motor 20 is connected with the front axle, a front-drive vehicle is formed. In general, a transmission 60 is connected between the axle 50 and the driving motor 20, and the transmission 60 is preferably a reduction transmission with a transmission ratio less than 1, so as to reduce the high-speed rotation of the driving motor 20 to a reasonable range, so that the axle 50 drives the wheels 52 to travel at a proper speed. In a specific embodiment, the transmission mechanism 60 can be a transmission shaft, a power transmission gear, a transmission chain, etc., wherein the transmission chain has low cost and is more suitable for a low-power electric vehicle; the transmission shaft and the gear transmission are more suitable for high-power electric automobiles, and have high performance and low noise and loss.

The range extender 30 comprises an engine 32 and a motor 34, the engine 32 can be any machine capable of converting other forms of energy into mechanical energy, such as an internal combustion engine, and converting the heat energy generated by burning fuel oil into mechanical energy; the motor 34 is preferably a Permanent Magnet Synchronous Motor (PMSM) including a stator and a rotor that rotates relative to the stator. The rotor comprises permanent magnets, and the engine 32 is in transmission connection with the rotor through a pivot 36; the stator includes a coil, and the coil is electrically connected to the power battery 10. The clutch mechanism 40 may be an existing clutch-to-gearbox assembly, and the clutch mechanism 40 is connected between the rotor of the motor 34 and the axle 50, and specifically between the pivot shaft 36 and the transmission mechanism 60, so that the pivot shaft 36 and the transmission mechanism 60 can be coupled or decoupled. When the clutch mechanism 40 couples the pivot shaft 36 with the transmission mechanism 60, the power of the engine 32 and the motor 34 can be transmitted to the axle 50 through the transmission mechanism 60.

The utility model discloses extend range formula electric automobile can have two kinds of mode of generating electricity and helping hand mode, and under the mode of generating electricity, extend range ware 30 electricity generation in order to increase the continuation of the journey mileage of car; in the boost mode, the range extender 30 boosts the drive to enhance the power output of the vehicle, specifically:

in the generating mode, the clutch mechanism 40 disconnects the pivot shaft 36 from the transmission mechanism 60, i.e., disconnects power transmission between the range extender 30 and the axle 50. At this time, the driving motor 20 drives the axle 50 alone to make the vehicle travel, and in the process, the driving motor 20 continuously consumes the electric power of the power battery 10. To ensure the driving range of the vehicle, the engine 32 is started, the engine 32 drives the rotor of the motor 34 to rotate through the pivot 36, the rotation of the rotor causes the rotor to form a motion of cutting magnetic lines relative to the coil of the stator, and an induced potential is generated in the coil and charges the power battery 10 electrically connected with the coil. That is, when the engine 32 is started, the motor 34 can be used as a generator to charge the power battery 10 to improve the cruising ability of the vehicle. Preferably, the engine 32 is connected to a control system, and the control system generates a control signal according to the electric quantity of the power battery 10, and automatically starts the engine 32 when the electric quantity of the power battery 10 is lower than a predetermined value.

In the boost mode, clutch mechanism 40 couples pivot 36 with gear train 60 and power from range extender 30 may be transmitted to axle 50. At this time, the transmission mechanism 60 connects the motor 34 and the driving motor 20 with the axle 50 in a transmission manner, the power battery 10 supplies power to the driving motor 20 and also supplies power to the coil of the motor 34, and the coil is electrified to generate a magnetic field to interact with the magnetic field of the rotor to push the rotor to rotate, so as to drive the axle 50 to rotate. In this way, the motor 34 is used as a motor and cooperates with the driving motor 20 to drive the axle 50, so as to form a dual-motor drive, thereby effectively improving the power output of the automobile. In addition, the control system can start the engine 32 according to the running state of the automobile in the boosting mode, for example, when strong power is needed for climbing or overtaking and the like, the power of the engine 32 is transmitted to the transmission mechanism 60 through the pivot 36, and the power, the motor 34 and the driving motor 20 are used for driving the axle 50 together, so that the automobile can have higher power output.

In the illustrated embodiment, the pivot shaft 36 and the axle 50 are disposed in parallel and spaced apart, the transmission mechanism 60 includes at least two transmission gears engaged with each other, the axes of the two transmission gears are disposed in parallel, one transmission gear is connected to the output end of the clutch mechanism 40, and the other transmission gear is connected to the axle 50, and the diameters of the two transmission gears may be different, so that the power transmission at a reduced speed is realized by the large and small gears. In other embodiments, the transmission 60 may be two meshed bevel gears, and the pivot 36 may be disposed at an angle to the axle 50, such as by disposing the pivot 36 perpendicular to the axle 50, etc. According to the internal space of the automobile, a proper transmission structure can be selected, and all elements are reasonably arranged, so that the internal structure of the automobile is more compact.

Fig. 3 shows another embodiment of the extended range electric vehicle of the present invention, which is different from the previous embodiment mainly in the connection between the motor 34 and the driving motor 20 and the axle. In this embodiment, the power battery 10 is electrically connected to the motor 34 and the driving motor 20; the engine 32 is connected with the motor 34 through a pivot shaft 36, the pivot shaft 36 is connected with a transmission mechanism 60 through a clutch mechanism 40, and the transmission mechanism 60 is connected with one axle, such as a front axle 50 a; the drive motor 20 is connected to another axle, such as a rear axle 50 b. In this manner, the front axle 50a and the front wheels 52a are driven by the motor 34; the rear axle 50b and the rear wheels 52b are driven by the drive motor 20, and the four-wheel drive vehicle is constructed as a whole. It should be understood that a transmission, such as gear transmission 42, may also be connected between drive motor 20 and rear axle 50 b. The drive motor 20 may be connected to the front axle 50a, and the motor 34 may be connected to the rear axle 50b via the clutch mechanism 40, but the present invention is not limited to this.

The extended range electric vehicle of the embodiment also has two working modes, namely a power generation mode and a power assisting mode. In the power generation mode, the clutch mechanism 40 disconnects the pivot shaft 36 from the front axle 50a, the engine 32 drives the motor 34 to operate to charge the power battery 10, and the driving motor 20 drives the rear axle 50b alone to drive the vehicle, which can be regarded as a two-drive vehicle. In the power-assisted mode, the clutch mechanism 40 couples the pivot shaft 36 with the front axle 50a, and the motor 34 drives the front axle 50a to rotate or the motor 34 and the engine 32 drive the front axle 50a to rotate together; meanwhile, the driving motor 20 drives the rear axle 50b to rotate, which can be regarded as a four-wheel drive vehicle. The extended range electric vehicle of the embodiment forms a four-wheel drive vehicle by different connections of the driving motor 20 and the motor 34 and the

axles

50a and 50b without adding elements, thereby improving the power output of the vehicle, and improving the climbing capability and driving stability of the vehicle.

It should be noted that the present invention is not limited to the above embodiments, and other changes can be made by those skilled in the art according to the spirit of the present invention, and all the changes made according to the spirit of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an increase form electric automobile, includes journey extension ware, clutching mechanism and power battery, its characterized in that, journey extension ware includes engine and motor, the motor includes the stator and relative stator pivoted rotor, the stator includes the coil, the coil with power battery electric connection, the rotor with the engine passes through pivot transmission and connects, the pivot passes through clutching mechanism is connected with an axle transmission, the engine passes through pivot drive motor electricity generation is right power battery charges, power battery is right the motor power supply is passed through pivot, clutching mechanism drive the axletree rotates.

2. The extended range electric vehicle of claim 1, wherein a transmission mechanism is connected between the clutch mechanism and the axle, and the transmission mechanism is a transmission shaft, a transmission gear or a transmission chain.

3. The extended range electric vehicle of claim 2, wherein the transmission is a step-down transmission with a transmission ratio less than 1.

4. The extended range electric vehicle of claim 2, wherein the pivot axis is perpendicular to the axle, and the transmission comprises at least two meshing bevel gears.

5. The extended range electric vehicle of claim 2, wherein the pivot axis is parallel to the axle, and the transmission comprises at least two axially parallel gears.

6. The extended range electric vehicle of claim 2, wherein the clutch mechanism is a clutch transmission assembly, and the motor drives the axle to rotate or the engine and the motor drive the axle to rotate when the clutch mechanism couples the pivot shaft and the transmission mechanism.

7. The extended range electric vehicle of any one of claims 1-6, further comprising a drive motor electrically connected to the power battery.

8. The extended range electric vehicle of claim 7, wherein the drive motor is drivingly connected to the axle, and wherein when the pivot shaft and the axle are coupled via the clutch mechanism, the motor and the drive motor cooperatively drive the axle or the engine, the motor and the drive motor cooperatively drive the axle.

9. The extended range electric vehicle of claim 7, wherein the drive motor is in driving connection with another axle, the axle being a front axle and the other axle being a rear axle; or, the axle is a rear axle and the other axle is a front axle, and four-wheel drive is formed on the whole.

10. The extended range electric vehicle of claim 9, wherein the drive motor is coupled to the other axle via a gear train.