TWI829242B - A charging system based on the running speed of an electric vehicle - Google Patents

Abstract

The invention discloses a charging system based on the running speed of an electric vehicle, which comprises a wind power conversion device and at least one generator. By converting the speed of the electric vehicle and the corresponding generated wind power into electricity, the electric vehicle battery is charged.

Description

A driving speed charging system for electric vehicles

The invention relates to a driving speed charging system for an electric vehicle, particularly in the technical field of power generation. When an electric vehicle is running, the wind force generated by the speed of the vehicle is used to generate electricity to charge the battery.

In the existing technology, pure electric vehicles need to use electricity. However, when the vehicle is traveling, there is an energy source that has been ignored by people. The vehicle speed, that is, when the vehicle is traveling at a certain speed, the wind force poured into the wind can become a source of energy. The design of ordinary vehicles only designs an air inlet and an air duct to allow the air to flow out of the vehicle body.

Therefore, how to effectively convert the wind force injected into the wind into electricity is an urgent technical problem that can be applied to all electric vehicles, such as electric cars, electric buses, electric locomotives, etc.

Therefore, it is necessary to propose a charging system based on the driving speed of electric vehicles, which can use ordinary vehicles to simply modify and use wind power to generate electricity while the vehicle is driving.

In order to solve the above-mentioned problems of the conventional technology, the present invention provides a device that is installed on existing electric vehicles, electric buses, and electric locomotives, and uses the speed of the vehicle and the corresponding wind force generated to To convert it into usable energy, the present invention uses a wind power conversion device in conjunction with at least one generator to use wind power to charge the battery of the electric vehicle in the form of electricity.

To achieve the above object, the present invention provides a driving speed charging system for an electric vehicle, which includes a wind power conversion device and at least one generator. The wind power conversion device includes an axis, a plurality of blades, an air inlet area, a reflex angle, an air outlet area, a first upper slope, a first lower slope and a second upper slope; the reflex angle Located above the plurality of blades and between the axis and the minimum cross-section of an air inlet; the reflexed tip protrudes toward the axis; the air inlet area is located on the right side of the reflexed tip, and the air outlet area is located on the reflex The left side of the folded corner; the first upper slope and the first lower slope are located in the air inlet area, and the cross-sectional area gradually shrinks toward the axis; the plurality of blades are arranged on the axis and located at the reflexed corner below; the second upper slope is located in the air outlet area. The first upper inclined surface and the second upper inclined surface are respectively provided on both sides of the reflected sharp corner; the at least one generator is connected to the axis; a groove is provided on one side of the reflected sharp corner so that at least one Turbulent flow will not occur within a rotation range of the blade; wind will enter from the wind inlet area, pushing the plurality of blades and the axis to rotate, driving the at least one generator to generate electricity.

In a preferred embodiment, the cross-sectional area of the air inlet area gradually decreases toward the area close to the plurality of blades.

In a preferred embodiment, the cross-sectional area of the air outlet area gradually decreases toward the reflex angle.

In a preferred embodiment, the wind power conversion device further includes a first upper slope and a first lower slope. The first upper slope and the first lower slope form a side biased toward the axis in the air inlet area. A windward channel.

In a preferred embodiment, the arcs of the plurality of blades range from 150 to 210 degrees.

In a preferred embodiment, the closest distance of the plurality of blades to the reflexed sharp angle is 0.8 cm to 2 cm.

In a preferred embodiment, each position of the plurality of blades has the same curvature.

In a preferred embodiment, the distance between the diameter of the plurality of blades and the closest angle of the plurality of blades to the reflexed tip is 2.5:1 to 3.5:1.

Compared with the conventional technology, the present invention uses the double funnel shape of the air inlet area and the air outlet area, the eccentric air duct in the air inlet area when it is close to the axis, the groove after the reflection of the sharp corner, and the curvature design of the blades. , and the design of the distance between the blades and the reflected corners to optimize the wind power conversion effect.

100: Electric vehicle driving speed charging system

110, 210: Wind power conversion device

120:Axis

130:Blade

140:wind zone

145:Reflected sharp corners

150: Ventilation area

160:First upper slope

161:Second upper slope

170: First slope

180, 180’: Groove

190:Generator

200:Windward channel

300:Electric car

310:Exhaust channel

Figure 1 is a schematic diagram of the driving speed charging system of an electric vehicle of the present invention; Figure 2 is a side schematic diagram of the wind power conversion device of Figure 1; Figure 3 is a diagram of another preferred implementation of the wind power conversion device of Figure 1 Figure 4 shows a schematic diagram of the electric vehicle driving speed charging system of the present invention installed on an electric vehicle; Figure 5 shows the electric vehicle driving speed charging system of the present invention installed on an electric vehicle. Schematic diagram.

The following description of the embodiments refers to the drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in this invention, such as "up", "down", "Front", "rear", "left", "right", "inside", "outside", "side", etc. are only for reference in the direction of the drawing. Therefore, the directional terms used are to illustrate and understand the present invention, but not to limit the present invention.

Please refer to FIGS. 1-2. FIG. 1 is a schematic diagram of the electric vehicle driving speed charging system 100 of the present invention; FIG. 2 is a lateral schematic diagram of the wind power conversion device 110 of FIG. 1. The electric vehicle driving speed charging system 100 includes a wind power conversion device 110 and at least one generator 190 . The wind power conversion device 110 includes an axis 120, a plurality of blades 130, an air inlet area 140, a reflex angle 145, an air outlet area 150, a first upper slope 160 and a first lower slope 170. The blade 130 is disposed on the axis 120 , and the air inlet area 140 and the air outlet area 150 are respectively disposed on both sides of the reflex angle. The axis is a rotatable rod. The at least one generator 190 is connected to the shaft 120 . The wind inlet area 140 and the air outlet area 150 are bounded by the folded sharp corner 145. When the electric vehicle starts to drive, the windward wind will enter from the windward channel 200 using the vehicle speed when the vehicle is moving. At this time, the wind will Entering from the air inlet area 140; pushing the plurality of blades 130 and the axis 120 to rotate, thereby driving the at least one generator 190 to generate electricity. The generator 190 is electrically connected to a rectifier (not shown) for adjusting the output power. The voltage is suitable for the battery module (not shown) of the electric vehicle, and the battery module is charged accordingly. In addition, please refer to FIG. 2 , the first upper slope 160 and the first lower slope 170 of the air inlet area 140 form a windward channel 200 in the air inlet area 140 that is biased to one side of the axis 120 . In detail, the windward channel 200 is biased to the upper side of the axis 120 so that part of the blades 130 close to the wind inlet area will not receive wind force, because if the upper and lower sides are blown by the wind in the same direction, the rotation effect will be greatly affected. influence. In detail, when the blade 130 is driven by the wind, it will first approach and then move away from the reflex angle 145 . In this preferred embodiment, the reflex angle 145 is disposed on the side of the first upper slope 160 .

It should be noted that the wind power conversion device 110 defines the right half as the air inlet area 140 and the left half as the air outlet area 150 based on the reflex angle 145 . As can be seen from FIG. 2 , the main design of the air inlet area 140 is that the cross-sectional area of the air inlet area 140 gradually shrinks toward the area close to the plurality of blades, presenting a funnel shape. Preferably, the cross-sectional area of the portion of the air inlet area 140 that is close to the blade 130 but does not reach the folded corner 145 will be the smallest area in the entire air duct; correspondingly, the cross-sectional area of the air outlet area 150 is toward the The reflexed corner 145 gradually narrows to form a second funnel shape. In order to utilize Bernoulli's principle (Bernoulli's principle), the blade 130 can receive the maximum wind force (speed).

Preferably, the inventor set a groove 180 on the first upper slope 160 where the air outlet area 150 is close to the reflexed sharp corner 145. Due to the air duct planning, there is a groove 180 on the reflexed sharp corner 145. Part of the wind will not blow on the blade 130, but will pass through the gap between the blade 130 and the reflex angle 145, so turbulence will be generated. The grooves 180 can reduce the influence of turbulence, thereby increasing the rotation speed of the blades, thereby increasing the power generation efficiency.

Please refer to another embodiment of the wind power conversion device 210 in Figure 3. The groove 180' may also have no curvature, and similar effects will be achieved.

Preferably, in this preferred embodiment, a generator 190 is provided on both sides of the axis 120. In addition to increasing the power generation capacity, the same counterweight also eliminates the potential for additional vehicle body modifications.

Preferably, the curvature of the plurality of blades 130 is between 150-210 degrees. In this preferred embodiment, the plurality of blades 130 are 180-degree semicircles. And the inventor also made the plural form Each position of the blade 130 has the same curvature, which can make full use of wind power to increase the blade rotation speed and increase the efficiency of power generation.

Preferably, after repeated tests, the inventor found that the distance between the blades 130 and the reflexed tip 145 is 0.8 cm to 2 cm, or the diameter of the blades 130 and the blades 130 are closest to the reflexed tip. The best power generation efficiency can be achieved when the distance between the angles 145 is 2.5:1 to 3.5:1.

Please refer to FIG. 4 and FIG. 5 , which illustrates a schematic diagram of the actual use of the electric vehicle driving speed charging system 100 of the present invention applied to an electric vehicle 300 . As shown in the figure, the electric vehicle driving speed charging system 100 can be used by installing it at the wind inlet in front of the vehicle. There is no need to modify the vehicle too much. Accordingly, based on the vehicle speed when the electric vehicle is traveling, the wind force poured into the wind is converted into Electric power, through the electric vehicle driving speed charging system 100 of the present invention, allows the wind to enter from the windward passage 200. At this time, the wind will enter from the wind inlet area 140; push the plurality of blades 130 and the axis 120 to rotate, thereby driving The at least one generator 190 generates electricity, and after passing through the reflex angle 145, the wind is discharged through the air outlet area 150 and the exhaust channel 310 in the electric vehicle 300, and the generator 190 is electrically connected to a rectifier (not shown) , used to adjust the output voltage to be used by the battery module (not shown) suitable for the electric vehicle, thereby providing the power to charge the battery. Of course, if it is installed in an electric SUV model, since it can be installed Assuming that the space is increased, the electric vehicle driving speed charging system 100 of the present invention can also be stacked one above the other to double the power generation efficiency.

Compared with the conventional technology, the present invention uses the double funnel shape of the air inlet area and the air outlet area, the eccentric air duct in the air inlet area when it is close to the axis, the groove after the reflection of the sharp corner, and the curvature design of the blades. , and the design of the distance between the blades and the reflected corners to optimize the wind power conversion effect.

The above are only the preferred embodiments of the present invention. It should be pointed out that those skilled in the art can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the present invention. protection scope of the invention.

110:Wind power conversion device

120:Axis

130:Blade

140:wind zone

145:Reflected sharp corners

150: Ventilation area

160:First upper slope

161:Second upper slope

170: First slope

180: Groove

200:Windward channel

Claims (9)

An electric vehicle driving speed charging system, which includes: a wind power conversion device, which includes an axis, a plurality of blades, an air inlet area, a reflex angle, an air outlet area, a first upper slope, and a first lower slope and a second upper slope; the reflexed tip is located above the blade and between the axis and the minimum cross-section of an air inlet; the reflexed tip protrudes toward the axis; the air inlet area is located at the reflexed tip On the right side of the air outlet area, the air outlet area is located on the left side of the reflex angle; the first upper slope and the first lower slope are located in the air inlet area, and the cross-sectional area gradually shrinks toward the axis direction; the plurality of blades are arranged on the axis on the center and located below the reflexed corner; the second upper slope is located in the air outlet area, and the first upper slope and the second upper slope are respectively provided on both sides of the reflexed corner; at least one generator , connected to the axis; a groove is provided on one side of the reflex angle so that at least one turbulent flow will not occur within a rotation range of the blade; when the electric vehicle starts to drive, the movement of the vehicle is utilized. The speed of the vehicle causes wind to enter from the wind inlet area, pushing the plurality of blades and the axis to rotate, driving the at least one generator to generate electricity. The electric vehicle driving speed charging system of claim 1 includes a rectifier for adjusting the voltage output by the generator to be suitable for the battery module of the electric vehicle. The electric vehicle speed charging system of claim 1, wherein the cross-sectional area of the air inlet area gradually decreases toward the area close to the plurality of blades. As described in claim 1, the electric vehicle driving speed charging system is characterized in that the cross-sectional area of the air outlet area gradually decreases toward the reflexed sharp corner. The electric vehicle driving speed charging system of claim 1, wherein the wind power conversion device further includes a first upper slope and a first lower slope, and the first upper slope and the first lower slope are formed in the wind inlet area. A windward channel on one side of the axis. As described in the electric vehicle driving speed charging system of claim 1, wherein the radian of the plurality of blades is between 150-210 degrees. As described in claim 1, the speed charging system for electric vehicles, wherein the closest distance of the plurality of blades to the reflexed sharp angle is 0.8 cm to 2 cm. The electric vehicle driving speed charging system of claim 1, wherein each position of the plurality of blades has the same curvature. The electric vehicle speed charging system of claim 8, wherein the diameter of the plurality of blades and the distance between the plurality of blades closest to the reflexed sharp angle is 2.5:1 to 3.5:1.