Automobile low-wind-speed power generation system

Abstract

The invention discloses an automobile low-wind-speed power generation system, and belongs to the technical field of wind power generation. An automobile low-wind-speed power generation system comprises an automobile body, a power generation assembly and a wind catching assembly. The power generation assembly comprises a plurality of independent power generation units; the power generation unit comprises a spiral blade, an output shaft, a supporting frame and a power generation rotor. A plurality of spiral blades are mounted on the peripheral surface of the output shaft in a circumferential array, and two ends of the output shaft are respectively connected with the inner side of the support frame; the opening direction of the power generation unit faces one side of the headstock; the wind catching assembly comprises a shell; the shell is arranged on the upper side face of a car roof, and at least one center air channel with front and back openings is formed in the shell. The power generation units are arranged front and back along the axis of the central air duct; the device is small in size and can be conveniently installed on a vehicle; the confluence end of the power generation unit directly faces airflow, the conversion efficiency of wind power is improved, and meanwhile the power generation unit can be started at a small starting wind speed.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power generation, and more specifically, relates to a low wind speed power generation system for an automobile. Background Art

[0002] As a common renewable energy, wind energy has the characteristics of being pollution-free, widely distributed and having large reserves, and has attracted much attention from all walks of life. At present, the most important way to develop wind energy is wind power generation, that is, relying on wind power to drive the blades of the generator to rotate and then drive the generator to operate to generate electricity. In the prior art, there are wind power generation devices installed on locomotives or cars, and the wind power generated by the operation of the transportation vehicle is converted into kinetic energy, which is then converted into electrical energy for use.

[0003] For example, the patent document with application number CN202311021982.8 (application date August 15, 2023) discloses a wind turbine for a travel RV, which generates electricity through a wind power generation unit arranged on the roof, but it has at least the following problems: 1. The wind power generation unit is large in size and is only suitable for large vehicles such as RVs. It is difficult to install and use on small family cars; 2. Due to the large size of the wind power generation unit, a higher wind speed is required to drive the blades to rotate. When the vehicle itself is traveling at a slow speed or the wind speed is low when the vehicle is stationary, the power generation efficiency of the wind power generation unit is low; 3. The lack of a wind capture component cannot achieve a high conversion efficiency for the directional wind force generated by the vehicle when it is driving. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a low-wind-speed power generation system for an automobile, which is small in size, easy to install on the vehicle, and suitable for a variety of vehicle models; the vehicle can generate directional airflow when driving normally, so that the converging end of the power generation unit faces the airflow directly, thereby improving the wind power conversion efficiency, and the power generation unit can be started at a smaller starting wind speed; multiple air ducts can prevent the power generation units arranged in front and behind from blocking each other, play a guiding role, can capture more wind energy, can reduce the energy loss of wind power during transmission, and further improve the power generation efficiency.

[0005] A low wind speed power generation system for a car of the present invention includes a car body, wherein the car body includes a roof and a front of the car. It also includes a power generation assembly and a wind capture assembly. The power generation assembly includes a plurality of independent power generation units. The power generation unit includes a spiral blade, an output shaft, a support frame and a power generation rotor. A plurality of spiral blades are mounted on the outer circumference of the output shaft in a circular array, and both ends of the output shaft are respectively connected to the inner side of the support frame. The shape of the spiral blade is an Archimedean space spiral surface. The power generation rotor is fixedly arranged on the outer side of the support frame, and the power generation rotor is connected to one end of the output shaft. The opening direction of the power generation unit is toward the front side of the car.

[0006] The wind-catching assembly comprises a shell. The shell is arranged on the upper side of the roof, and at least one central air duct with front and rear openings is provided inside the shell. The power generation unit is arranged front and rear along the axis of the central air duct.

[0007] As a further improvement of the present invention, a plurality of power generation units are arranged on the front side of the vehicle head. The bottom end of the support frame is connected to the front side of the vehicle head.

[0008] As a further improvement of the present invention, a side air duct is further provided inside the shell, and a side air duct is symmetrically provided on the left and right sides of the central air duct, and the side air duct and the central air duct are independent of each other. The front and rear sides of the central air duct and the side air duct are respectively provided with mutually symmetrical main vents, and the main vents are connected to the external space.

[0009] As a further improvement of the present invention, a plurality of power generation units are respectively arranged in the central air duct and the side air duct, the power generation units in the same air duct are arranged at intervals, and adjacent power generation units in different air ducts are arranged in an alternating manner.

[0010] As a further improvement of the present invention, a plurality of side vents are respectively provided on the side walls of the central air duct and the side air duct to connect the central air duct and the side air duct. The side vents are located between the front and rear adjacent power generation units.

[0011] As a further improvement of the present invention, the power generation unit includes a converging end and an air outlet end. The converging end faces a side of the front of the vehicle, and the air outlet end faces a side away from the front of the vehicle.

[0012] As a further improvement of the present invention, a battery assembly is further included, the battery assembly is arranged at the bottom of the housing, and the battery assembly includes an energy storage battery, a rectifier and a charging controller. Each power generation unit is correspondingly provided with a rectifier, the power generation rotor is electrically connected to the rectifier, and the rectifiers are connected in parallel to each other so that the rectified current is connected to the energy storage battery through the charging controller.

[0013] As a further improvement of the present invention, matching mounting holes are provided on the shell and the roof, and the bottom surface of the shell and the upper side surface of the roof are detachably connected by bolts.

[0014] As a further improvement of the present invention, the support frame includes a support portion and a mounting portion. The support portion includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are arranged opposite to each other, and the upper side surfaces are flush with each other. The lower end of the first connecting rod is inclined toward the second connecting rod. The second connecting rod is arc-shaped. The lower end of the first connecting rod is fixedly connected to the lower end of the second connecting rod to form a hollow area, and the lower half of the power generation unit is always located in the hollow area. The two ends of the output shaft are respectively connected to the first connecting rod and the second connecting rod. The mounting portion is connected to the outer side surface of the first connecting rod or the second connecting rod.

[0015] As a further improvement of the present invention, matching mounting holes are provided on the mounting portion and the housing. The support frame and the housing are detachably connected by bolts.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a power generation unit, compared with the existing blade-type power generation device, it is smaller in size, easy to install on the vehicle, and suitable for a variety of vehicle models.

[0017] 2. By arranging spiral blades, an output shaft, a support frame and a generator rotor; a plurality of spiral blades are mounted on the outer circumference of the output shaft in a circular array, and both ends of the output shaft are respectively connected to the inner side of the support frame; the spiral blades are in the shape of an Archimedean space spiral surface; the generator rotor is fixedly arranged on the outer side of the support frame, and the generator rotor is connected to one end of the output shaft; the opening direction of the generator unit faces the front side of the vehicle; the vehicle can generate directional airflow when driving normally, so that the converging end of the generator unit faces the airflow directly, thereby improving the wind power conversion efficiency, and the generator unit can be started at a relatively small starting wind speed.

[0018] 3. By setting up a shell; the shell includes a central air duct and a side air duct; a number of side vents are respectively opened on the side walls of the central air duct and the side air duct to connect the central air duct and the side air duct; multiple air ducts can prevent the front and back arranged power generation units from blocking each other, play a diversion role, can capture more wind energy, can reduce the energy loss of wind during transmission, and further improve the power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment 1 of the present invention; Figure 2 It is a schematic diagram of the overall structure of the power generation assembly of the present invention; Figure 3 It is a schematic diagram of the structure of the output shaft and the spiral blade of the present invention; Figure 4 is a side view of the power generation assembly of the present invention; Figure 5 A top view of the power generation assembly of the present invention; Figure 6 It is a structural schematic diagram of a wind-catching component in a specific embodiment 1 of the present invention; Figure 7 is a cross-sectional view of a wind-catching assembly of the present invention; Figure 8 It is a schematic diagram of the overall structure of a specific embodiment 2 of the present invention; Fig. 9 It is a schematic diagram of the overall structure of a specific embodiment 3 of the present invention; Fig.10It is a schematic structural diagram of a power generation assembly in a specific embodiment 3 of the present invention; Fig.11 It is the front view of a single spiral blade; Fig.12 This is the left side view of a single spiral blade.

[0020] Description of the numbers in the figure: Automobile body 1, roof 11, front 12, power generation component 2, spiral blade 21, output shaft 22, support frame 23, power generation rotor 24, confluence end 25, air outlet end 26, wind catching component 3, shell 31, central air duct 32, side air duct 33, main vent 34, side vent 35. DETAILED DESCRIPTION

[0021] Specific embodiment 1: Please refer to Figure 1-Figure 7 and Figure 11-Figure 12 A low wind speed power generation system for an automobile is disclosed, which comprises an automobile body 1, a power generation component 2 and a wind capture component 3.

[0022] Among them, the car body 1 includes a roof 11 and a front 12. It should be noted that in this embodiment, the specific type of the vehicle is not limited, and the vehicle can be a motorhome or an ordinary family car. The power generation component 2 includes a number of independent power generation units. The power generation unit includes a spiral blade 21, an output shaft 22, a support frame 23 and a power generation rotor 24. A number of spiral blades 21 are installed on the outer circumferential surface of the output shaft 22 in a circular array, and the two ends of the output shaft 22 are respectively connected to the inner side of the support frame 23. The shape of the spiral blade 21 is an Archimedean space spiral surface. The power generation rotor 24 is fixedly arranged on the outer side of the support frame 23, and the power generation rotor 24 is connected to one end of the output shaft 22. The opening direction of the power generation unit is toward the side of the front 12. Compared with the existing blade-type power generation device, the power generation unit in this embodiment is smaller in size, easy to install on the vehicle, and suitable for a variety of vehicle models.

[0023] like Figure 3As shown, in this embodiment, the power generation unit includes three spiral blades 21 of exactly the same shape. The power generation unit includes a converging end 25 and an outlet end 26. The converging end 25 faces the side of the front of the vehicle 12, and the outlet end 26 faces the side away from the front of the vehicle 12. It should be noted that in this embodiment, although the power generation unit can capture wind from all directions well, it is obvious that the power generation unit has the highest capture and conversion efficiency when facing the wind from the converging end 25 to the outlet end 26, and the lowest capture and conversion efficiency when facing the wind from the outlet end 26 to the converging end 25. In general, when a car is driving in a straight line, the airflow flows backward against the body, so the capture and conversion efficiency of the power generation unit set in the direction of the body is the highest. When the vehicle is driving normally, it can generate directional airflow, so that the converging end of the power generation unit faces the airflow directly, improves the conversion efficiency of wind force, and at the same time, the power generation unit can be started at a smaller starting wind speed.

[0024] like Fig.11 As shown, this is a front view of a single spiral blade 21. In this embodiment, the spiral blade 21 is a variable-pitch spiral blade with a certain thickness, and its shape is an Archimedean space spiral surface, wherein: is the generatrix of the helicoid, The angle between the axis of the helicoid is α; the curve l> It is a variable lead space Archimedean spiral, whose lead follows the law of uniform speed change; in the cylindrical coordinate system l> The parameterization formula is:

[0025] The value range of parameter t is (0, 2], α, b and b1 are coefficients that determine the shape of the helix, l>α is numerically equal to half of the radius of gyration of the helical blade 21, and b and b1 are characteristic parameters that determine the helical lead of the blade. In this embodiment, the change law of the lead is a uniform acceleration or uniform deceleration change law.

[0026] The wind-catching assembly 3 includes a housing 31. The housing 31 is disposed on the upper side of the roof 11, and at least one central air duct 32 with front and rear openings is provided inside the housing 31. The power generation unit is disposed front and rear along the axis of the central air duct 32.

[0027] A side duct 33 is also provided inside the shell 31, and a side duct 33 is symmetrically provided on the left and right sides of the central duct 32, and the side duct 33 is independent of the central duct 32. Symmetrical main vents 34 are provided on the front and rear sides of the central duct 32 and the side duct 33, respectively, and the main vents 34 are connected to the external space. Multiple power generation units are provided in the central duct 32 and the side duct 33, respectively, and the power generation units in the same duct are arranged at intervals, and the adjacent power generation units between different ducts are arranged in an interlaced manner. Several side vents 35 are provided on the side walls of the central duct 32 and the side duct 33, respectively, to connect the central duct 32 and the side duct 33. The side vents 35 are located between the adjacent power generation units in front and behind. Multiple ducts are more conducive to guiding and concentrating wind power, so that wind power acts on the power generation unit more effectively, captures more wind energy for the system, provides greater wind input, and converts it into electrical energy, thereby improving power generation efficiency. Independent ducts can also reduce the energy loss of wind power during transmission, further improving power generation efficiency.

[0028] The power generation units are arranged at intervals in front and behind, and the power generation unit located at the rear side obtains wind power from the side vents 35, which can prevent the power generation units arranged in front and behind from blocking each other.

[0029] At the same time, multiple independent wind ducts help reduce the direct impact of wind on the power generation unit. In the case of large wind fluctuations, the wind duct can act as a buffer, reduce vibration and noise, and thus extend its service life. Stable wind input also helps the power generation unit maintain a stable operating state and reduce failures caused by wind fluctuations. This can not only improve the reliability of the wind power generation system, but also reduce operation and maintenance costs.

[0030] In this embodiment, the housing 31 includes a central air duct 32 and two side air ducts 33. A side vent 35 is respectively provided on the left and right sides of the side air duct 33. Two side vents 35 are respectively provided on the two sides of the central air duct 32.

[0031] It also includes a battery assembly, which is arranged at the bottom of the housing 31. The battery assembly includes a storage battery, a rectifier and a charging controller. Each power generation unit is provided with a rectifier, and the power generation rotor 24 is electrically connected to the rectifier. The rectifiers are connected in parallel to each other so that the rectified current is connected to the storage battery through the charging controller.

[0032] The collection of electric energy from multiple power generation units through rectifiers and batteries is an existing conventional technical means, and its specific working principle and connection relationship will not be repeated here.

[0033] The shell 31 and the roof 11 are provided with matching mounting holes, and the bottom surface of the shell 31 and the upper side surface of the roof 11 are detachably connected by bolts.

[0034] like Figure 4 As shown, the support frame 23 includes a support portion and a mounting portion. The support portion includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are arranged opposite to each other, and the upper side surfaces are flush with each other. The lower end of the first connecting rod is inclined toward the second connecting rod. The second connecting rod is arc-shaped. The lower end of the first connecting rod is fixedly connected to the lower end of the second connecting rod to form a hollow area, and the lower half of the power generation unit is always located in the hollow area. The two ends of the output shaft 22 are respectively connected to the first connecting rod and the second connecting rod. The mounting portion is connected to the outer side surface of the first connecting rod or the second connecting rod.

[0035] Matching mounting holes are provided on the mounting portion and the housing 31. The support frame 23 and the housing 31 are detachably connected by bolts.

[0036] Specific embodiment 2: Please refer to Figure 8 A low wind speed power generation system for an automobile is disclosed, and the similarities with the specific embodiment 1 are not repeated here. The difference lies in that: in this embodiment, the shell 31 includes three central air ducts 32 and two side air ducts 33.

[0037] Specific embodiment three: Please refer to Figure 9-10 The invention relates to a low wind speed power generation system for an automobile. The same details as the first embodiment are not described in detail. The difference lies in that: a plurality of power generation units are arranged on the front side of the front of the vehicle 12. The bottom end of the support frame 23 is connected to the front side of the front of the vehicle 12.

Claims

1. A low wind speed power generation system for an automobile, comprising an automobile body (1), wherein the automobile body (1) comprises a roof (11) and a front (12); the system is characterized in that: It also includes a power generation assembly (2) and a wind capture assembly (3); the power generation assembly (2) includes a plurality of independent power generation units; the power generation unit includes a spiral blade (21), an output shaft (22), a support frame (23) and a power generation rotor (24); the plurality of spiral blades (21) are mounted on the outer peripheral surface of the output shaft (22) in a circular array, and both ends of the output shaft (22) are respectively connected to the inner side of the support frame (23); the spiral blade (21) is in the shape of an Archimedean space spiral surface; the power generation rotor (24) is fixedly arranged on the outer side of the support frame (23), and the power generation rotor (24) is connected to one end of the output shaft (22); the opening direction of the power generation unit faces the side of the front of the vehicle (12); The wind-catching component (3) comprises a shell (31); the shell (31) is arranged on the upper side of the vehicle roof (11); at least one central air duct (32) with front and rear openings is provided inside the shell (31); and the power generation unit is arranged front and rear along the axis of the central air duct (32).

2. The low wind speed power generation system for automobile according to claim 1, characterized in that: A plurality of power generation units are arranged on the front side of the vehicle head (12); and the bottom end of the support frame (23) and the front side surface of the vehicle head (12) are connected to each other.

3. The low wind speed power generation system for automobile according to claim 1, characterized in that: A side air duct (33) is also provided inside the shell (31), and a side air duct (33) is symmetrically provided on the left and right sides of the central air duct (32), respectively, and the side air duct (33) and the central air duct (32) are independent of each other; and main ventilation openings (34) are symmetrically provided on the front and rear sides of the central air duct (32) and the side air duct (33), respectively, and the main ventilation openings (34) are connected to the external space.

4. The low wind speed power generation system for automobile according to claim 3, characterized in that: A plurality of power generation units are respectively arranged in the central air duct (32) and the side air duct (33); the power generation units in the same air duct are arranged at intervals, and adjacent power generation units in different air ducts are arranged in a staggered manner.

5. The low wind speed power generation system for automobile according to claim 4, characterized in that: A plurality of side vents (35) are respectively provided on the side walls of the central air duct (32) and the side air duct (33) to connect the central air duct (32) and the side air duct (33); the side vents (35) are located between the front and rear adjacent power generation units.

6. The low wind speed power generation system for automobile according to claim 1, characterized in that: The power generation unit comprises a converging end (25) and an air outlet end (26); the converging end (25) faces a side of the vehicle front (12), and the air outlet end (26) faces a side away from the vehicle front (12).

7. The low wind speed power generation system for automobile according to claim 1, characterized in that: It also includes a battery assembly, which is arranged at the bottom of the shell (31), and includes an energy storage battery, a rectifier and a charging controller; each power generation unit is correspondingly provided with a rectifier, the power generation rotor (24) is electrically connected to the rectifier, and the rectifiers are connected in parallel to each other so that the rectified current is connected to the energy storage battery through the charging controller.

8. The low wind speed power generation system for automobile according to claim 1, characterized in that: The shell (31) and the roof (11) are provided with matching mounting holes, and the bottom surface of the shell (31) and the upper side surface of the roof (11) are detachably connected via bolts.

9. The low wind speed power generation system for automobile according to claim 1, characterized in that: The support frame (23) comprises a support portion and a mounting portion; the support portion comprises a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are arranged opposite to each other, and the upper side surfaces are flush with each other; the lower end of the first connecting rod is inclined toward one side of the second connecting rod; the second connecting rod is arc-shaped; the lower end of the first connecting rod is fixedly connected to the lower end of the second connecting rod to form a hollow area, and the lower half of the power generation unit is always located in the hollow area; the two ends of the output shaft (22) are respectively connected to the first connecting rod and the second connecting rod; the mounting portion is connected to the outer side surface of the first connecting rod or the second connecting rod.

10. The low wind speed power generation system for automobile according to claim 9, characterized in that: Matching mounting holes are provided on the mounting portion and the housing (31); the support frame (23) and the housing (31) are detachably connected via bolts.

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