Wind power generation device and method for automobile rearview mirror

Abstract

The invention discloses an automobile rearview mirror wind power generation device and method. The device comprises a shell, a flow guide cavity is formed in the bottom in the shell, a first impeller is arranged above an air inlet in the bottom of the flow guide cavity, the tail end of the flow guide cavity is connected with an exhaust hole, a storage battery is arranged in the shell, and an output shaft of the storage battery is coaxially and fixedly connected with an output shaft of the first impeller. The effects of enhancing the running safety and stability of the wind power generation device arranged on the vehicle and improving the economic value are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation devices, and in particular to a wind power generation device and method for a car rearview mirror. Background Art

[0002] As the global demand for clean energy continues to increase, wind power generation has received widespread attention as an environmentally friendly and sustainable form of energy. In the automotive field, although electric vehicles and hybrid vehicles are developing rapidly, how to further improve the energy efficiency of vehicles remains an important research direction. In recent years, some innovative designs have begun to explore the integration of wind power generation devices into cars to use the airflow generated during driving to generate electricity, thereby providing additional power support for on-board electronic equipment.

[0003] Although the existing wind power generation structure has achieved the function of automobile wind power generation to a certain extent, there are still some problems: most existing designs will increase the air resistance of the vehicle, especially when driving at high speeds, which not only affects the fuel economy of the vehicle, but may also reduce driving stability; the existing wind power generation devices have low power generation efficiency when driving at low speeds and cannot fully utilize the airflow resources during the vehicle's driving process, limiting their actual application value; some designs install wind turbines on the roof or side of the vehicle body, which are easily affected by the external environment, increasing maintenance costs and safety hazards. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the power generation device easily increases the air resistance of the vehicle and has low power generation efficiency when driving at low speed.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a car rearview mirror wind power generation device, including a shell, a guide cavity is arranged at the bottom of the shell, a first impeller is arranged above the air inlet at the bottom of the guide cavity, an exhaust hole is connected to the tail end of the guide cavity, a battery is arranged inside the shell, and the battery output shaft is coaxially fixedly connected with the first impeller output shaft.

[0006] Preferably, a partition plate is provided at the bottom of the shell, a notch is provided in the middle of the partition plate, the air inlet of the guide cavity is arranged at the notch, and the cross-section surface of the partition plate is in an upwardly convex arc shape.

[0007] Preferably, the notch in the partition plate located upstream of the first impeller is located above another notch, the bottom of the first impeller is located in the notch of the partition plate, and the notch located downstream is arc-shaped.

[0008] Preferably, a sealing plate is provided at the bottom of the shell, the sealing plate is arranged at an angle, the bottom end of the sealing plate is hinged to the bottom end of the bottom surface of the shell, an electric push rod is provided in the shell, the top end of the sealing plate is hinged to the output end of the electric push rod, and the notch on the partition plate is located between the two ends of the sealing plate.

[0009] Preferably, an exhaust cavity is provided in the middle of the bottom end of the shell, the bottom end of the sealing plate is located below the exhaust cavity, and the hinges of the sealing plate are located on both sides of the exhaust cavity.

[0010] Preferably, the cross-section of the sealing plate is arc-shaped, a gap is provided between the sealing plate and the partition plate, a sealing cavity is provided in the gap, and one end of the sealing cavity is connected to the exhaust cavity.

[0011] Preferably, the drive control unit signal of the electric push rod is connected to the vehicle speed detection sensor, and when the vehicle speed exceeds the set speed, the electric push rod is in a retracted state.

[0012] Preferably, a second impeller is rotatably arranged at the inner bottom of the guide chamber, a bottom plate is arranged at the top of the guide chamber, the bottom plate is connected to the interior of the outer shell and separates the interior of the outer shell from the guide chamber, the cross-section of the bottom plate at one end in the direction of the second impeller is S-shaped, and the mounting shaft of the second impeller is coaxially fixedly connected to the input end of the battery.

[0013] Preferably, the battery is connected to a heating structure in the housing, and the heating structure is attached to the inner side of the rearview mirror.

[0014] A method for using a car rearview mirror wind power generation device comprises the following steps: Step 1: After the car starts, the electric push rod starts to work under the control of the control system, and the movable end of the electric push rod extends to push the top of the sealing plate to rotate downward, so that an opening is formed between the sealing plate and the bottom surface of the housing, and the sealing cavity inside the sealing plate is connected to the outside; Step 2: The airflow enters the sealed cavity through the gap between the sealing plate and the partition plate, and flows to the exhaust cavity and the guide cavity respectively. At this time, the first impeller located at the gap of the partition plate begins to be impacted by the airflow and generates a rotational motion; Step 3: When the first impeller rotates, its output shaft drives the coaxially fixed battery input shaft to rotate, thereby realizing the conversion of wind energy into electrical energy, and storing the generated electrical energy in the battery; Step 4: The airflow continues to flow along the guide cavity. When passing through the bottom plate of the S-shaped cross section, the second impeller located at the bottom of the guide cavity is driven to rotate. The mounting shaft of the second impeller is also coaxially fixedly connected to the input end of the battery, thereby further increasing the power generation. Step 5: The airflow is discharged through the exhaust hole and the exhaust cavity, and part of the heat is taken away at the same time, so as to maintain the appropriate temperature inside the device and ensure the normal operation of each component; Step 6: When the ambient temperature is low or frost is detected on the surface of the rearview mirror, the control system activates the heating structure connected to the battery to heat the inside of the rearview mirror to prevent icing and fogging and ensure a clear view for the driver; Step 7: The driving control unit of the electric push rod is connected to the vehicle speed detection sensor signal. When the vehicle speed exceeds the set value, the electric push rod automatically contracts to close the sealing plate to prevent the first impeller from stalling.

[0015] The present invention provides a car rearview mirror wind power generation device and method, which has the following beneficial effects: 1. The first impeller and the second impeller are located at different positions of the guide cavity, which can capture the airflow more fully, especially when driving at low speed, they can also generate effective rotational motion to improve power generation efficiency.

[0016] 2. The output shafts of the first impeller and the second impeller are coaxially fixedly connected to the input end of the battery, ensuring direct conversion of wind energy into electrical energy, reducing energy loss and improving power generation efficiency.

[0017] 3. Optimize the intake and exhaust design: Through the design of the partition plate, sealing plate and exhaust cavity, the airflow is smoother during the entry and exhaust process, which reduces the interference with vehicle driving, reduces air resistance, and improves fuel economy and driving stability.

[0018] 4. The electric push rod automatically adjusts the opening state of the sealing plate according to the vehicle speed sensor signal, and closes the sealing plate when driving at high speed to reduce unnecessary airflow, further reduce air resistance and avoid impeller stall damage.

[0019] 5. The entire wind power generation device is integrated inside the outer shell, which does not affect the appearance of the car and maintains the overall aesthetics of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0021] Figure 2 Schematic diagram of the internal structure of an embodiment of the present invention.

[0022] In the figure: 1. outer casing; 2. guide chamber; 3. bottom plate; 4. first impeller; 5. sealing plate; 6. sealing chamber; 7. partition plate; 8. exhaust chamber; 9. exhaust hole; 10. second impeller; 11. battery; 12. electric push rod. DETAILED DESCRIPTION

[0023] like Figure 1 and Figure 2As shown, the present invention provides a car rearview mirror wind power generation device, including a shell 1, a guide cavity 2 is arranged at the bottom of the shell 1, a first impeller 4 is arranged above the air inlet at the bottom of the guide cavity 2, an exhaust hole 9 is connected to the tail end of the guide cavity 2, a battery 11 is arranged inside the shell 1, and the output shaft of the battery 11 is coaxially fixedly connected with the output shaft of the first impeller 4.

[0024] A small dual-shaft generator is installed inside the housing 1. The dual-shaft generator is fixed on the battery 11. The two input shafts of the dual-shaft generator are connected to the first impeller 4 and the second impeller 10, and electricity is generated by the rotation of the first impeller 4 and the second impeller 10. The battery 11 is mainly used for heating the rearview mirror and supplying power for the turn signal lights.

[0025] The housing 1 is the main frame of the entire wind power generation device, and a flow guide cavity 2, a partition plate 7, a sealing plate 5, an electric push rod 12 and a battery 11 are arranged inside.

[0026] An air inlet and an air outlet 9 are provided at the bottom of the housing 1 for guiding the air flow to enter and to be discharged.

[0027] The guide cavity 2 is located at the bottom of the housing 1 and is responsible for guiding the airflow to pass through and drive the first impeller 4 and the second impeller 10 to rotate.

[0028] The tail end of the guide cavity 2 is connected with an exhaust hole 9 to ensure smooth exhaust of the airflow.

[0029] The first impeller 4 is installed above the air inlet at the bottom of the guide cavity 2 and generates a rotational motion under the impact of the airflow.

[0030] The output shaft of the first impeller 4 is coaxially fixedly connected to one input shaft of the dual-shaft generator to achieve the conversion of wind energy into electrical energy.

[0031] The dual-shaft generator is installed inside the housing 1 and fixed on the battery 11 .

[0032] The two input shafts of the generator are connected to the first impeller 4 and the second impeller 10 respectively, and electricity is generated through the rotation of the two impellers.

[0033] The electric energy generated by the generator is stored in the battery 11 and is mainly used for the power supply of rearview mirror heating and turn lights.

[0034] The exhaust cavity 8 is arranged in the middle of the bottom end of the housing 1 , and the bottom end of the sealing plate 5 is located below the exhaust cavity 8 .

[0035] The exhaust chamber 8 is used to exhaust air flow and take away part of the heat to keep the internal temperature of the device suitable.

[0036] The heating structure is attached to the inner side of the rearview mirror and is powered by the battery 11 to prevent icing and fogging and ensure a clear field of vision for the driver.

[0037] After the car starts, the electric push rod 12 starts to work under the control of the control system, pushing the top of the sealing plate 5 to rotate downward, so that the sealing plate 5 and the bottom surface of the housing 1 form an opening, and the sealing cavity 6 inside the sealing plate 5 is connected to the outside.

[0038] The airflow enters the sealing chamber 6 through the gap between the sealing plate 5 and the partition plate 7, and flows to the exhaust chamber 8 and the guide chamber 2. At this time, the first impeller 4 located at the notch of the partition plate 7 begins to be impacted by the airflow and generates a rotational motion.

[0039] When the first impeller 4 rotates, its output shaft drives one input shaft of the dual-shaft generator to rotate, thereby converting wind energy into electrical energy, and storing the generated electrical energy in the storage battery 11 .

[0040] The airflow continues to flow along the guide cavity 2, and when passing through the bottom plate 3 of the S-shaped cross section, it drives the second impeller 10 located at the bottom of the guide cavity 2 to rotate. The mounting shaft of the second impeller 10 is also coaxially fixedly connected to the other input shaft of the dual-shaft generator, further increasing the power generation.

[0041] The exhaust hole 9 and the exhaust cavity 8 are used to discharge the airflow, and at the same time, some heat is taken away to keep the internal temperature of the device suitable, thus ensuring the normal operation of each component.

[0042] When it is detected that the ambient temperature is low or there is frost on the surface of the rearview mirror, the control system activates the heating structure connected to the battery 11 to heat the inside of the rearview mirror to prevent icing and fogging, thereby ensuring a clear field of vision for the driver.

[0043] The driving control unit of the electric push rod 12 is connected to the vehicle speed detection sensor signal. When the vehicle speed exceeds the set value, the electric push rod 12 automatically contracts to close the sealing plate 5, thereby reducing unnecessary airflow and optimizing power generation efficiency.

[0044] like Figure 2 The bottom of the housing 1 is provided with a partition plate 7, a notch is provided in the middle of the partition plate 7, the air inlet of the guide cavity 2 is arranged at the notch, and the cross-section of the partition plate 7 is in an arc shape that bulges upward; the notch in the partition plate 7 located upstream of the first impeller 4 is located above the other notch, the bottom of the first impeller 4 is located in the notch of the partition plate 7, and the notch located downstream is in an arc shape.

[0045] The partition plate 7 is arranged at the bottom of the housing 1 and has a notch in the middle for arranging the air inlet of the guide cavity 2 .

[0046] The cross-section surface of the partition plate 7 is in an upwardly convex arc shape, which helps to guide the airflow to smoothly enter the guide cavity 2.

[0047] The notch on the partition plate 7 is divided into two parts, an upstream part and a downstream part. The upstream notch is located above the first impeller 4, and the downstream notch is in an arc shape.

[0048] A sealing plate 5 is provided at the bottom of the shell 1, and the sealing plate 5 is arranged at an angle. The bottom end of the sealing plate 5 is hinged to the bottom end of the bottom surface of the shell 1. An electric push rod 12 is provided in the shell 1, and the top end of the sealing plate 5 is hinged to the output end of the electric push rod 12. The notch on the partition plate 7 is located between the two ends of the sealing plate 5.

[0049] like Figure 2 The middle part of the bottom end of the housing 1 is provided with an exhaust cavity 8, the bottom end of the sealing plate 5 is located below the exhaust cavity 8, and the hinges of the sealing plate 5 are located on both sides of the exhaust cavity 8; the opening or closing of the sealing plate 5 corresponds to the opening and closing of the wind power generation device.

[0050] The cross section of the sealing plate 5 is in an arc shape, a gap is provided between the sealing plate 5 and the partition plate 7, a sealing cavity 6 is provided in the gap, one end of the sealing cavity 6 is connected to the exhaust cavity 8; the first impeller 4 is partially located below the sealing plate 7, and is accommodated by the sealing cavity 6. The drive control unit signal of the electric push rod 12 is connected to the vehicle speed detection sensor, and when the vehicle speed exceeds the set speed, the electric push rod 12 is in a retracted state.

[0051] The sealing plate 5 is arranged obliquely, with its bottom end hinged to the bottom end of the bottom surface of the housing 1 , and its top end hinged to the output end of the electric push rod 12 .

[0052] The cross-section of the sealing plate 5 is in an arc shape, and a gap is provided between the sealing plate 5 and the partition plate 7 . A sealing cavity 6 is provided in the gap, and one end of the sealing cavity 6 is communicated with the exhaust cavity 8 .

[0053] The function of the sealing plate 5 is to open the air inlet when the vehicle is running at a low speed to allow air flow to enter; and to close the air inlet when the vehicle is running at a high speed to reduce air resistance.

[0054] The electric push rod 12 is installed inside the housing 1 , and the output end is hinged to the top end of the sealing plate 5 .

[0055] The driving control unit signal of the electric push rod 12 is connected to the vehicle speed detection sensor, and when the vehicle speed exceeds the set value, the electric push rod 12 automatically contracts to close the sealing plate 5.

[0056] like Figure 2 The second impeller 10 is rotatably arranged at the inner bottom of the guide cavity 2, and a bottom plate 3 is arranged at the top of the guide cavity 2. The bottom plate 3 is connected to the inside of the housing 1 and separates the inside of the housing 1 from the guide cavity 2. The cross section of the bottom plate 3 at one end of the second impeller 10 is S-shaped, and the mounting shaft of the second impeller 10 is coaxially fixedly connected to the input end of the battery 11.

[0057] The second impeller 10 is rotatably disposed at the bottom of the guide cavity 2 and is located below the bottom plate 3 .

[0058] The mounting shaft of the second impeller 10 is coaxially fixedly connected to the other input shaft of the dual-shaft generator, further increasing the power generation.

[0059] The battery 11 is connected to a heating structure in the housing 1 , and the heating structure is attached to the inner side of the rearview mirror.

[0060] A method for using a car rearview mirror wind power generation device comprises the following steps: Step 1: After the car starts, the electric push rod 12 starts to work under the control of the control system, and the movable end of the electric push rod 12 extends to push the top of the sealing plate 5 to rotate downward, so that the sealing plate 5 and the bottom surface of the housing 1 form an opening, and the sealing cavity 6 inside the sealing plate 5 is connected to the outside; Step 2: The airflow enters the sealed chamber 6 through the gap between the sealing plate 5 and the partition plate 7, and flows to the exhaust chamber 8 and the guide chamber 2 respectively. At this time, the first impeller 4 located at the notch of the partition plate 7 begins to be impacted by the airflow and generates a rotational motion; Step 3: When the first impeller 4 rotates, its output shaft drives the coaxially fixed input shaft of the battery 11 to rotate, thereby realizing the conversion of wind energy into electrical energy, and storing the generated electrical energy in the battery 11; Step 4: The airflow continues to flow along the guide cavity 2. When passing through the bottom plate 3 with an S-shaped cross section, the second impeller 10 located at the bottom of the guide cavity 2 is driven to rotate. The mounting shaft of the second impeller 10 is also coaxially fixedly connected to the input end of the battery 11, thereby further increasing the power generation. Step 5: The airflow is discharged through the exhaust hole 9 and the exhaust cavity 8, and part of the heat is taken away at the same time, so as to maintain a suitable temperature inside the device and ensure the normal operation of each component; Step 6: When it is detected that the ambient temperature is low or there is frost on the surface of the rearview mirror, the control system activates the heating structure connected to the battery 11 to heat the inside of the rearview mirror to prevent icing and fogging, thereby ensuring a clear field of vision for the driver; Step 7: The driving control unit of the electric push rod 12 is connected to the vehicle speed detection sensor signal. When the vehicle speed exceeds the set value, the electric push rod 12 automatically contracts to close the sealing plate 5 to prevent the first impeller 4 from stalling.

Claims

1. A car rearview mirror wind power generation device, characterized in that: The invention comprises a housing (1), a flow guide chamber (2) being arranged at the bottom of the housing (1), a first impeller (4) being arranged above an air inlet at the bottom of the flow guide chamber (2), an exhaust hole (9) being connected to the tail end of the flow guide chamber (2), a storage battery (11) being arranged inside the housing (1), and an output shaft of the storage battery (11) being coaxially fixedly connected to an output shaft of the first impeller (4).

2. The automobile rearview mirror wind power generation device as claimed in claim 1, characterized in that: A partition plate (7) is provided at the bottom of the housing (1), a notch is provided in the middle of the partition plate (7), the air inlet of the flow guide cavity (2) is arranged at the notch, and the cross-section of the partition plate (7) is in the shape of an arc that bulges upward.

3. The automobile rearview mirror wind power generation device as claimed in claim 2, characterized in that: The notch in the partition plate (7) located upstream of the first impeller (4) is located above another notch, the bottom of the first impeller (4) is located in the notch of the partition plate (7), and the notch located downstream is in an arc shape.

4. The automobile rearview mirror wind power generation device as claimed in claim 2, characterized in that: A sealing plate (5) is provided at the bottom of the housing (1), the sealing plate (5) is arranged at an angle, the bottom end of the sealing plate (5) is hinged to the bottom end of the bottom surface of the housing (1), an electric push rod (12) is provided in the housing (1), the top end of the sealing plate (5) is hinged to the output end of the electric push rod (12), and the notch on the partition plate (7) is located between the two ends of the sealing plate (5).

5. The automobile rearview mirror wind power generation device as claimed in claim 4, characterized in that: An exhaust cavity (8) is provided in the middle of the bottom end of the housing (1), the bottom end of the sealing plate (5) is located below the exhaust cavity (8), and the hinges of the sealing plate (5) are located on both sides of the exhaust cavity (8).

6. The automobile rearview mirror wind power generation device as claimed in claim 5, characterized in that: The cross-section of the sealing plate (5) is arc-shaped, a gap is provided between the sealing plate (5) and the partition plate (7), a sealing cavity (6) is provided in the gap, and one end of the sealing cavity (6) is connected to the exhaust cavity (8).

7. The automobile rearview mirror wind power generation device as claimed in claim 4, characterized in that: The drive control unit signal of the electric push rod (12) is connected to the vehicle speed detection sensor, and when the vehicle speed exceeds a set speed, the electric push rod (12) is in a retracted state.

8. The automobile rearview mirror wind power generation device as claimed in claim 1, characterized in that: A second impeller (10) is rotatably arranged at the inner bottom of the guide chamber (2), a bottom plate (3) is arranged at the top of the guide chamber (2), the bottom plate (3) is connected to the interior of the outer shell (1) and separates the interior of the outer shell (1) from the guide chamber (2), a cross-section of the bottom plate (3) at one end in the direction of the second impeller (10) is S-shaped, and the mounting shaft of the second impeller (10) is coaxially fixedly connected to the input end of the storage battery (11).

9. The automobile rearview mirror wind power generation device as claimed in claim 1, characterized in that: The storage battery (11) is connected to a heating structure in the housing (1), and the heating structure is attached to the inner side of the rearview mirror.

10. A method for using a car rearview mirror wind power generation device as claimed in any one of claims 1 to 9, characterized in that: The steps include: Step 1: After the vehicle is started, the electric push rod (12) starts to work under the action of the control system, and the movable end of the electric push rod (12) extends to push the top end of the sealing plate (5) to rotate downward, so that an opening is formed between the sealing plate (5) and the bottom surface of the housing (1), and the sealing cavity (6) inside the sealing plate (5) is connected to the outside; Step 2: The airflow enters the sealing chamber (6) through the gap between the sealing plate (5) and the partition plate (7), and flows to the exhaust chamber (8) and the guide chamber (2) respectively. At this time, the first impeller (4) located at the notch of the partition plate (7) begins to be impacted by the airflow and generates a rotational motion; Step 3: When the first impeller (4) rotates, its output shaft drives the coaxially fixed input shaft of the storage battery (11) to rotate, thereby realizing the conversion of wind energy into electrical energy, and storing the generated electrical energy in the storage battery (11); Step 4: the airflow continues to flow along the guide cavity (2), and when passing through the bottom plate (3) with the S-shaped cross section, it drives the second impeller (10) located at the bottom of the guide cavity (2) to rotate, and the mounting shaft of the second impeller (10) is also coaxially fixedly connected to the input end of the storage battery (11), thereby further increasing the power generation; Step 5: The airflow is discharged through the exhaust hole (9) and the exhaust cavity (8), and part of the heat is taken away at the same time, so as to maintain a suitable temperature inside the device and ensure the normal operation of all components; Step 6: When it is detected that the ambient temperature is low or there is frost on the surface of the rearview mirror, the control system activates the heating structure connected to the battery (11) to heat the inside of the rearview mirror to prevent icing and fogging, thereby ensuring a clear field of vision for the driver; Step 7: The driving control unit of the electric push rod (12) is connected to the vehicle speed detection sensor signal. When the vehicle speed exceeds a set value, the electric push rod (12) automatically contracts to close the sealing plate (5) to prevent the first impeller (4) from stalling.

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