Vehicle-mounted vertical wind power device

Abstract

The invention discloses a vehicle-mounted vertical wind power device which comprises an impeller assembly, a power generation system and a power storage system, a speed limiting assembly is arranged between the impeller assembly and the power generation system, and the speed limiting assembly is suitable for automatically increasing the rotation resistance of the impeller assembly when the rotation of the impeller assembly is overspeed. And the impeller assembly is prevented from exceeding the set working rotating speed. The actual rotating speed of the transmission shaft is recognized through the fixed springback interval of the elastic reset piece, recognition can be conducted on each circle of rotation of the transmission shaft, and therefore the dynamic recognition effect can be achieved, recognition of the mechanical structure is stable and reliable, and the fault rate is relatively low.

Description

Technical Field

[0001] This application relates to the technical field of wind power generation, and particularly to a vehicle-mounted vertical wind power device. Background Art

[0002] Wind power generation refers to the conversion of the kinetic energy brought by the wind into electrical energy. Wind energy is a clean, pollution-free and renewable energy source, so wind power generation is very environmentally friendly. The wind energy reserve is huge, with good prospects and potential. Generally, a vehicle does not directly carry a wind power generation device because the wind power generation device generally affects the vehicle's wind resistance, thus bringing greater resistance when the vehicle is driving. In fact, the kinetic energy loss caused by wind resistance is far more than the energy generated by wind power generation.

[0003] Normally, it is not recommended to install a wind power device on a vehicle. A normal vehicle does not have much power demand. More importantly, the energy consumption problem is considered to save the vehicle use cost. At this time, installing a wind power device will instead increase the energy consumption. However, for some special user groups in remote areas, long-distance trucks or recreational vehicles, etc., they need to use the vehicle for a long time and live in an unfixed location for a long time. Therefore, they usually use some high-power electrical appliances such as air conditioners, induction cookers, water heaters, etc. to meet the basic needs of daily life. Therefore, it is necessary to consider how to supplement the electrical energy in time. For such groups, although energy consumption is an important consideration, ensuring the basic electricity consumption for daily life is also equally important.

[0004] A significant problem with installing and using a vertical wind power device on a vehicle is that when the wind is strong, the blades rotate at a high speed. When it is necessary to retract, due to the high rotation speed of the blades, it is difficult to brake the blades when retracting. At the same time, when the blade rotation speed is too fast, it is easy to generate a situation of power overload, thus causing damage or even damage to the battery.

[0005] Due to the problems of vehicle-mounted wind power generation space and weight limitations, the vehicle-mounted wind power structure usually needs to make trade-offs in design. Therefore, we have designed a wind power device that is convenient to use on a vehicle. Summary of the Invention

[0006] The purpose of this application is to provide a vehicle-mounted vertical wind power device.

[0007] To achieve the above object, the technical solution adopted in this application is: a vehicle-mounted vertical wind power device, including an impeller assembly, a power generation system and a power storage system. A speed limiting component is arranged between the impeller assembly and the power generation system. The speed limiting component is adapted to automatically increase the rotational resistance of the impeller assembly when the impeller assembly rotates overspeed, so as to prevent the impeller assembly from exceeding the set operating speed.

[0008] As a preference, the speed limiting component includes an elastic reset member, a transmission member cooperating with the elastic reset member, and a resistance member for deceleration. The elastic reset member has a fixed spring-back interval. The impeller assembly includes a transmission shaft and an impeller. The transmission shaft rotates with the impeller. Each time the transmission shaft rotates one circle, the elastic reset member deforms and rebounds once. When the elastic reset member deforms, it interferes with the resistance member through the transmission member to prevent the resistance member from rotating. When the rotational speed of the transmission shaft is less than the set working speed, the transmission shaft is subject to the resistance generated by the relative action of the elastic reset member in the speed limiting component. When the rotational speed of the transmission shaft is greater than the set working speed, the transmission shaft is subject to the relative action of the elastic reset member and the resistance member in the speed limiting component to generate resistance. The resistance member is provided with an elastic member, and the elastic member keeps the resistance member in the initial state when not subject to external force and at the same time ensures that the resistance member automatically resets after the external force ends.

[0009] As a preference, the elastic reset member has an action stroke. After the transmission shaft rotates by an angle a, the elastic reset member completes the entire action stroke and starts to reset, so that the reset stroke of the elastic reset member is the same each time, and further the spring-back interval time is the same each time, where a ≤ 180°.

[0010] As a preference, an action part is provided on the transmission shaft. When rotating, the action part interacts with the resistance member and the elastic reset member respectively. The elastic reset member includes a movable rod movably arranged in the vertical direction and a spring for providing elasticity. The resistance member includes a resistance piece, a rotating part connected to the resistance piece, and a torsion spring acting on the rotating part. The torsion spring forms the elastic member. The transmission member includes a first rack that moves up and down synchronously with the movable rod, a gear meshing with the first rack, and a second rack horizontally meshing with the bottom of the gear. A limiting hole is provided in the middle of the rotating part. When the resistance piece is kept in the initial state by the torsion spring, the limiting hole is horizontal and corresponds to the second rack. When the elastic reset member contracts, the first rack descends, the gear rotates so that the second rack moves towards the limiting hole, thereby restricting the rotation of the rotating part.

[0011] As a preference, a damping part is provided in the first half interval of the spring-back path of the elastic reset member. The damping part acts on the spring before the deformation amount of the elastic reset member is restored to half, so as to slow down the restoration of the elastic reset member, and further increase the spring-back interval.

[0012] As a preference, the damping magnitude of the damping part is adjustable to control the increase amount of the spring-back interval. The maximum value of the working resistance of the damping part is less than the value of the acting force when the deformation amount of the elastic reset member reaches half of the action stroke.

[0013] As a preference, when the elastic reset member is fully restored, the second rack disengages from the limit hole to release the restriction; the top of the resistance member is elastically deformable, the resistance member is initially inclined away from the elastic reset member and the height of its top is higher than that of the acting portion. When the transmission shaft rotates and acts on the resistance member under normal working conditions, the torsion spring is overcome to rotate the rotating portion, and the acting portion normally passes through the resistance member to reduce the energy loss of the resistance member to the transmission shaft; when the rotational speed of the transmission shaft exceeds the set working rotational speed and the transmission shaft rotates into contact with the resistance member, the elastic reset member is not fully reset, and the transmission shaft interferes with the resistance member during rotation. At this time, the resistance member is restricted by the second rack and cannot rotate. The transmission shaft acts on the top of the resistance member and passes through after the top of the resistance member is elastically deformed, so as to increase the energy loss of the resistance member to the transmission shaft. Subsequently, when the transmission shaft continues to rotate until it passes before the elastic reset member, the elastic reset member is fully reset, and the transmission shaft continues to act on the elastic reset member to complete the rotation of the next cycle.

[0014] As a preference, the transmission shaft includes a fixed portion at the bottom and a movable portion at the top. The fixed portion and the movable portion are detachably fixed. The vehicle-mounted vertical wind power device further includes a gravity support structure. The gravity support structure is adapted to support both ends of the movable portion. The bottom of the movable portion passes through the gravity support structure, and the fixed portion is connected to the bottom of the movable portion passing through the gravity support structure.

[0015] As a preference, a telescopic support frame is provided between the impeller and the transmission shaft. The telescopic support frame includes at least two adjuster rods detachably arranged, and each adjuster rod includes a plurality of adjustable holes; when the gravity support structure is installed horizontally, the impeller reduces the maximum rotation radius of the impeller by retracting the adjuster rods.

[0016] As a preference, the speed limiting assembly includes a manual adjustment portion, and the manual adjustment portion is adapted to manually apply pressure to adjust the rotational resistance of the impeller assembly.

[0017] Compared with the prior art, the beneficial effects of the present application are as follows:

[0018] In the present application, through the additionally provided speed limiting assembly, the speed limiting assembly identifies the rotational speed of the impeller assembly and can automatically apply rotational resistance when the rotational speed exceeds the set working rotational speed, so as to decelerate the impeller assembly, thereby preventing the impeller assembly from rotating too fast and causing the power generation system to be overloaded.

[0019] The actual rotational speed of the transmission shaft is identified by the fixed rebound interval of the elastic reset member, and the identification can be carried out for each rotation of the transmission shaft, so that the effect of dynamic identification can be achieved. Such a mechanical structure identification is stable and reliable, and the failure rate is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application.

[0021] Figure 2 is a schematic diagram of the structure at the speed limiting component.

[0022] Figure 3 is Figure 2 a schematic diagram of the structure at the elastic reset member in

[0023] Figure 4 is Figure 3 a schematic diagram at the maximum compression stroke.

[0024] Figure 5 is a schematic diagram of the initial state of the transmission member and the resistance member.

[0025] Figure 6 is Figure 5 a schematic diagram when the resistance member is prevented from rotating when the elastic reset member fails to reset in time.

[0026] Figure 7 is Figure 5 a schematic diagram from another angle.

[0027] Figure 8 is a schematic diagram when the acting part and the resistance part start to act when the elastic reset member resets normally.

[0028] Figure 9 is a schematic diagram when the acting part and the resistance part continue to act when the elastic reset member resets normally.

[0029] Figure 10 when Figure 9 a schematic diagram when the acting part passes through the resistance part on this basis.

[0030] Figure 11 a schematic diagram when the acting part starts to act on the resistance part when the elastic reset member fails to reset in time.

[0031] Figure 12 when Figure 11 a schematic diagram of continuously deforming the top of the resistance part.

[0032] In the figure: 1. impeller assembly; 2. transmission shaft; 3. movable rod; 4. acting part; 5. first rack; 6. slider; 7. spring; 8. damping part; 9. second rack; 10. gear; 11. rotating part; 12. resistance member; 13. limiting hole; 14. positioning groove; 15. torsion spring. Detailed implementation manners

[0033] Next, in combination with the detailed implementation manners, the present application will be further described. It should be noted that, on the premise of no conflict, any combination can be formed between the following-described embodiments or technical features to form a new embodiment.

[0034] In the description of the present application, it should be noted that for orientation terms, if there are terms such as "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation and position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0035] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence.

[0036] The terms "comprising" and "having" and any variations thereof in the description and claims of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0037] Embodiment:

[0038] Referring to Figures 1 to 12 , this embodiment provides a vehicle-mounted vertical wind power device, including an impeller assembly 1, a power generation system and a power storage system. A speed limiting component is arranged between the impeller assembly 1 and the power generation system. The speed limiting component is adapted to automatically increase the rotational resistance of the impeller assembly 1 when the impeller assembly 1 rotates at an excessive speed, so as to prevent the impeller assembly 1 from exceeding the set operating speed.

[0039] Among them, the impeller assembly 1 is as shown in the figure, and its specific structure is not additionally limited. As long as the impeller of a vertical-axis wind power device is applicable, it can be used for the impeller assembly 1 in this embodiment. Therefore Figure 1 the shown impeller shape is not used as a limitation.

[0040] The power generation system is a device that specifically generates electricity through the rotation of the impeller assembly 1, and the power storage system is a device for storing electrical energy, generally various types of batteries. Among them, the power generation system and the power storage system are common prior arts in this field, so no more description will be given.

[0041] In this embodiment, a speed limiting component is additionally provided. The speed limiting component identifies the rotation speed of the impeller assembly 1 and can automatically apply a rotational resistance when the rotation speed exceeds the set operating speed, thereby decelerating the impeller assembly 1. Obviously, most wind power generation has its set power, which is usually related to the configuration, and the actual power generation power of wind power equipment is usually related to the rotation speed of the impeller assembly 1. Therefore, wind power equipment usually has a suitable set operating speed. When exceeding this speed, it may cause overload and damage the power generation system and the power storage system. Especially for vehicle-mounted wind power equipment, in order to be portable and easy to install, such equipment usually needs to optimize and streamline the structure. Therefore, in actual design, how to avoid overspeed operation during use is a major problem for vehicle-mounted wind power equipment.

[0042] Existing wind power equipment usually uses a braking system to control the impeller speed. However, during actual use, it is necessary to pay more attention to the impeller speed during the use process to perform appropriate braking to control the speed. Or some automatic braking systems identify the speed by setting some sensors and then achieve automatic control. However, such settings usually greatly increase the equipment cost, and the sensor equipment has high requirements for the use environment and a high failure rate. Therefore, in addition to using sensors and other identification devices in this application, a mechanical structure can also be used to identify and control the speed.

[0043] The speed limiting component of this embodiment includes an elastic reset member, a transmission member cooperating with the elastic reset member, and a resistance member for deceleration. The elastic reset member has a fixed rebound interval; the impeller assembly 1 includes a transmission shaft 2 and an impeller. The transmission shaft 2 rotates with the impeller. Each time the transmission shaft 2 rotates one circle, the elastic reset member deforms and rebounds once; when the elastic reset member deforms, it interferes with the resistance member through the transmission member to prevent the resistance member from rotating; when the rotation speed of the transmission shaft 2 is less than the set operating speed, the transmission shaft 2 is subject to the resistance generated by the relative action of the elastic reset member in the speed limiting component; when the rotation speed of the transmission shaft 2 is greater than the set operating speed, the transmission shaft 2 is subject to the relative action of the elastic reset member and the resistance member in the speed limiting component to generate resistance; the resistance member is provided with an elastic member, and the elastic member keeps the resistance member in the initial state when not subject to external force and at the same time ensures that the resistance member automatically resets after the external force ends.

[0044] The speed of the transmission shaft 2 is the speed of the impeller assembly 1. The above-mentioned setting of the working speed is obviously related to the rebound interval of the elastic reset member. Specifically, the embodiment realizes the identification of whether the speed of the transmission shaft 2 exceeds the set value through the rebound interval of the elastic reset member. The specific principle is that when the transmission shaft 2 operates in the normal speed range, the elastic reset member can be reset before the next transmission shaft 2 arrives, so that the transmission member will not interfere with the rotation of the resistance member. When the resistance member does not interfere with the rotation of the resistance member, when the transmission shaft 2 and the resistance member act, the resistance member can make the rotating shaft pass by rotating, so that the energy loss between the two is small, and the resistance member automatically rebounds and resets after the transmission shaft 2 passes. When the transmission shaft 2 rotates at an overspeed, since the elastic reset member needs a certain time of rebound interval, the transmission shaft 2 speed is too fast, which will cause the transmission shaft 2 to pass the resistance member for the second time, and the elastic reset member has not yet reset. At this time, the interference of the transmission member to the resistance member is not released, so the resistance member cannot rotate, and the high-speed transmission shaft 2 continues to rotate, which requires the resistance member to be pressed, so that the resistance member is deformed, and the transmission shaft 2 passes. It is understandable that the resistance generated by the deformation of the resistance component is much greater than the resistance when the resistance component rotates to avoid, which is equivalent to greatly increasing the rotational resistance of the transmission shaft, thereby achieving the deceleration of the transmission shaft 2. After the deceleration of the resistance component, generally speaking, before the transmission shaft 2 passes through the elastic reset component, the elastic reset component has been reset. At this time, if the transmission shaft 2 continues to rotate, the elastic reset component can continue to be compressed, and the speed of the transmission shaft 2 can be re-identified through the rebound interval. If the speed is in the normal range after deceleration, it is normal operation. If it is still overspeeding, the transmission component will continue to interfere with the rotation of the resistance component, thereby continuing to decelerate the transmission shaft 2.

[0045] In actual use scenarios, it is obvious that the wind speed is not a constant value, so the corresponding impeller speed is not actually uniform, but changes frequently. Therefore, when only sensors are used to identify the actual speed of the transmission shaft 2, identification failures are likely to occur due to the high and low speeds of the identification. This embodiment identifies the actual speed of the transmission shaft 2 through a fixed rebound interval of the elastic reset member, and can be identified at each rotation of the transmission shaft 2, thereby achieving a dynamic identification effect. Such mechanical structure identification is stable and reliable, and the failure rate is relatively low.

[0046] In order to ensure that the rebound interval is easy to set, the elastic reset member has an action stroke. After the transmission shaft 2 rotates by degree a, the elastic reset member completes the entire action stroke and starts to reset, so that the reset stroke of the elastic reset member remains the same each time, and thus the rebound interval time is the same each time, where a≤180°. Obviously, referring to Figure 3It can be seen that the a value in the figure is relatively small, about 15° to 30°. This value should obviously not be too large, because there is resistance between the transmission shaft 2 and the elastic reset component when it is in action. When this value exceeds half, after the transmission shaft 2 passes through the elastic reset component, the elastic reset component will be in the process of recovery. The transmission shaft 2 will rotate at most 180° to complete this circle of rotation. In this way, the actual recovery time of the elastic reset component will be very short. Correspondingly, when the transmission shaft 2 actually rotates very fast, it can also pass normally without being affected by the resistance component, which is not convenient for the identification and control of the rotation speed.

[0047] Elastic reset parts can refer to Figure 3 and Figure 4 , an action part 4 is provided on the transmission shaft 2, and the action part 4 interacts with the resistance component and the elastic reset component respectively when rotating; the elastic reset component includes a movable rod 3 movably arranged in the vertical direction and a spring 7 for providing elasticity; the resistance component includes a resistance component 12, a rotating part 11 connected to the resistance component 12, and a torsion spring 15 acting on the rotating part 11, and the torsion spring 15 forms an elastic component; the transmission component includes a first rack 5 that rises and falls synchronously with the movable rod 3, a gear 10 meshing with the first rack 5, and a second rack 9 horizontally and meshingly arranged at the bottom of the gear 10, a limiting hole 13 is provided in the middle of the rotating part 11, and the limiting hole 13 remains horizontal and corresponds to the second rack 9 when the resistance component 12 maintains the initial state through the torsion spring 15; when the elastic reset component contracts, the first rack 5 descends and the gear 10 rotates to make the second rack 9 move toward the limiting hole 13, thereby limiting the rotation of the rotating part 11.

[0048] The movable rod 3 can refer to Figure 3 The bottom of the movable rod 3 passes through the fixed structure provided at the bottom when it is lifted, and the fixed structure can also be used as a lifting limit for the movable rod 3. The top of the movable rod 3 can be provided with one or more inclined surfaces facing the action part 4, so that the action part 4 can guide the action movable rod 3 to descend after it rotates.

[0049] When the transmission shaft 2 is at normal speed, you can refer to Figure 7 , Figure 8 , Figure 9 and Figure 10 , the action part 4 acts on the resistance member 12 to make it rotate to avoid. Figure 11 and Figure 12 , Figure 12 The top of the resistance member 12 in the embodiment is partially deformed.

[0050] Of course, the transmission distances of the first rack 5, the second rack 9 and the gear 10 shown in the figure are relatively large, and can actually be set more precisely, which is only shown in the figure for illustration.

[0051] As for the installation of the first rack 5, the second rack 9 and the gear 10, Figure 1As shown, a ring-shaped box for accommodation is provided on the outer side of the overall speed-limiting component, and these components are correspondingly fixed on the inner wall of the ring-shaped box. The first rack 5 moves along with the slider 6, so the first rack 5 can be directly fixed on the slider 6; the second gear 10 can be directly fixed to the ring-shaped box through a connecting rod; the second rack 9, as Figure 5 shown, a positioning groove 14 can be provided on the side, and a positioning rod can be provided on the inner wall of the ring-shaped box, and the positioning groove 14 can be slidably arranged on the positioning rod for installation. The remaining components can be correspondingly installed on the ring-shaped box and will not be listed one by one for illustration.

[0052] Actually, the transmission shaft 2 cannot always interact with the elastic resetting member because it is difficult to generate a rebound interval in this way. In this embodiment, the actual acting part 4 of the transmission shaft 2 is designed as the acting part 4 as shown in the figure. The angular range from the start to the end of the interaction between the acting part 4 and the movable rod 3 is a. When this value is less than half a turn (180°), the elastic resetting member has sufficient time for subsequent resetting.

[0053] In order to ensure that the resistance component can always contact the transmission shaft 2 in the same state, a torsion spring 15 is provided to maintain the initial state of the resistance component. The transmission member is set as a combination of the first rack 5, the gear 10 and the second rack 9. When the movable rod 3 descends, the first rack 5 descends synchronously, driving the gear 10 to rotate, and the gear 10 drives the second rack 9 to move and enter the limit hole 13, thereby interfering with the resistance component. Obviously, when the second rack 9 just starts to move, it enters the limit hole 13 (refer to Figure 5 、 Figure 6 ), so the elastic resetting member can only keep the initial state to allow the resistance component to rotate freely. Therefore, the rebound interval of the elastic resetting member can be used as the basis for identifying the rotation speed of the transmission shaft 2.

[0054] Since the elastic reset member is generally reset by, for example, a spring 7, and the recovery speed of the spring 7 is generally relatively fast. The upper limit of the rotational speed of the vertical-axis wind power equipment is generally between 200 - 300 r / min. Calculated at 300 revolutions, it is about 5 revolutions per second, and the rebound interval is about 0.2 seconds. In fact, the rebound speed of the spring 7 may be faster than this value. Therefore, in order to ensure the rebound interval, the elastic reset member in this embodiment is provided with a damping portion 8 in the first half interval of its rebound path. The damping portion 8 acts on the spring 7 before the deformation amount of the elastic reset member is restored to half, so as to slow down the restoration of the elastic reset member, thereby increasing the rebound interval. The first half interval of the rebound path is easy to understand, that is, starting from when the transmission shaft 2 makes the movable rod 3 descend to the lowest point. At this time, the spring 7 is compressed to the maximum stroke (not at the elastic limit of the spring 7), that is, at the maximum position of the "action stroke". Subsequently, the reset begins, and the entire reset interval is the rebound path. The first half is the interval from the beginning of the rebound to half of it. It should be noted that the damping portion 8 can only slow down the rebound speed of the spring 7 to a certain extent. If the set damping is too large, it may affect the complete rebound of the spring 7. Therefore, in this embodiment, the damping portion 8 is arranged in the first half of the rebound path. In the first half, the spring 7 has a large deformation, so it can still ensure stable rebound when being blocked during rebound, and it will no longer be affected by the damping portion 8 after rebounding to a certain extent, thus not affecting the complete rebound.

[0055] Obviously, the damping of the damping portion 8 is adjustable to control the increase amount of the rebound interval. The greater the damping, the longer the rebound interval time; the smaller the damping of the damping portion 8, the faster the rebound. Generally speaking, however, the maximum value of the working resistance of the damping portion 8 should be less than the value of the acting force when the deformation amount of the elastic reset member reaches half of the action stroke, so as to prevent the damping portion 8 from not being able to rebound completely normally. The actual meaning of the value of the acting force when the deformation amount of the elastic reset member reaches half of the action stroke here is the magnitude of the acting force when the acting force makes the elastic reset member deform to half of its action stroke. The action stroke of the elastic reset member is as Figure 2 、 Figure 3 shown, and it specifically depends on the maximum value when the acting portion 4 acts on the movable rod 3 and guides the movable rod 3 to descend.

[0056] Specifically referring to Figure 3 、 Figure 4 , the damping portion 8 includes two damping blocks, and the distance between the two damping blocks is adjustable. The damping increases when the distance is reduced, and the damping decreases when the distance is increased. A slider 6 is provided at the bottom of the movable rod 3, and the resistance increases when the slider 6 slides into the space between the two damping blocks. As Figure 3 shown, there is a gap between the top of the damping block and the bottom of the slider 6 in the initial state. This is to ensure that the damping portion 8 acts on the spring 7 before the deformation amount of the elastic reset member is restored to half, and after the slider 6 moves upward away from the damping block, the latter half of the reset will not be affected by the damping portion 8. As Figure 4As shown, the side wall of the slider 6 and the inner wall of the damping block are both planes. Figure 4 For the sake of convenience in illustration, the inner wall of the damping block is directly in contact with the side wall of the slider 6. In actual use, for the convenience of adjustment, an intermediate body that is easy to deform, such as a rubber pad, can be provided on the inner wall of the damping block. When adjusting the distance between the two damping blocks, the pressure between the intermediate body and the side wall of the slider 6 is increased or reduced, thereby achieving damping adjustment.

[0057] When the second rack 9 is fully restored, the elastic reset member leaves the limit hole 13 to release the restriction; the top of the resistance member 12 can be elastically deformed, and the resistance member 12 is initially inclined toward the side away from the elastic reset member and its top height is higher than the action part 4. Under normal working conditions, when the transmission shaft 2 rotates and acts on the resistance member 12, the torsion of the torsion spring 15 is overcome to make the rotating part 11 rotate, and the action part 4 passes through the resistance member 12 normally to reduce the energy loss of the resistance member 12 to the transmission shaft 2; when the speed of the transmission shaft 2 exceeds the set working speed and the transmission shaft 2 rotates to contact the resistance member 12, since the elastic reset member has not been reset, the transmission shaft 2 interferes with the resistance member 12 during rotation. At this time, the resistance member 12 is restricted by the second rack 9 and cannot rotate. The transmission shaft 2 acts on the top of the resistance member 12 and causes the top of the resistance member 12 to pass through after elastic deformation to increase the energy loss of the resistance member 12 to the transmission shaft 2. Subsequently, the transmission shaft 2 continues to rotate until it passes before the elastic reset member, the elastic reset member is reset, and the transmission shaft 2 continues to act on the elastic reset member to complete the next cycle of rotation.

[0058] In fact, the transmission shaft 2 completes a full circle of rotation means that the transmission shaft 2 rotates 360°, and after the transmission shaft 2 contacts the elastic reset member for the first time, the resistance member 12 is already applied before it rotates 360°, so in fact, the time for the transmission shaft 2 to deform the elastic reset member plus the rebound interval cannot be directly equivalent to the speed of the transmission shaft 2 rotating one circle. In fact, the transmission shaft 2 has already contacted the resistance member 12 before it rotates 360°, so the actual recognition time will be slightly less than the time for the transmission shaft 2 to rotate one circle. However, it can be understood that the faster the elastic reset member rebounds, the shorter the corresponding recognition time is, so at this time the speed of the transmission shaft 2 can be faster (that is, the working speed is set faster); and the slower the elastic reset member rebounds, the longer the corresponding recognition time is, and at this time the speed of the transmission shaft 2 needs to be slower (that is, the working speed is set slower), because the excessive speed of the transmission shaft 2 will prematurely act on the resistance member 12, thereby causing deceleration. Therefore, even if the above-mentioned recognition time is different from the actual time for the transmission shaft 2 to rotate one circle, the set elastic reset member rebound interval (time) can also be used as a basis for judging the speed of the transmission shaft 2.

[0059] The drive shaft 2 includes a fixed part at the bottom and a movable part at the top. The fixed part and the movable part are detachably fixed. The vehicle-mounted vertical wind power device further includes a gravity support structure (not shown in the related structure diagrams, but does not affect understanding). The gravity support structure is adapted to support both ends of the movable part. The bottom of the movable part passes through the gravity support structure, and the fixed part is connected to the bottom of the movable part passing through the gravity support structure. A telescopic support frame (not shown in the related structure diagrams either) is provided between the impeller and the drive shaft 2. The telescopic support frame includes at least two detachably arranged adjusting rods, and each adjusting rod includes a number of adjustable holes; when the gravity support structure is installed horizontally, the impeller reduces the maximum rotation radius of the impeller by contracting the adjusting rods. The gravity support structure is for the impeller to be arranged horizontally. In some cases, such as on the top of a motorhome, there is an independent space to install the wind power device. At this time, through the setting of the gravity support structure, this wind power device can be used for installation on the motorhome. On the other hand, through the telescopic support frame, the impeller can be unfolded or retracted, so as to control the outer diameter occupation of the impeller. When used for a motorhome, the outer diameter can be reduced, so as to facilitate installation. When parked and used, the impeller can be unfolded to obtain a larger wind receiving area, so as to ensure the power generation efficiency. The gravity support structure can be composed of two horizontally fixedly installed bearings.

[0060] In order to further ensure the installation and use of this wind power device, the speed limit component is also provided with a manual adjustment part (not shown in the figure). The manual adjustment part is adapted to manually apply pressure to adjust the rotational resistance of the impeller assembly 1. The manual adjustment part can be, for example, a nest is arranged on the outer wall of the drive shaft 2. A bearing is arranged in the middle of the nest and connected to the drive shaft 2. A screw is arranged outside the bearing. When the screw is tightened, it presses the inner ring of the bearing, so that the drive shaft 2 decelerates. Of course, other available manually adjustable structures can also be set.

[0061] The above describes the basic principle, main features and advantages of the present application. Those skilled in the art of this industry should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted vertical wind power device, comprising an impeller assembly, a power generation system and a power storage system, characterized in that: A speed limiting component is arranged between the impeller assembly and the power generation system, and the speed limiting component is adapted to automatically increase the rotational resistance of the impeller assembly when the impeller assembly rotates at an overspeed, so as to prevent the impeller assembly from exceeding a set working speed.

2. The vehicle-mounted vertical wind power device according to claim 1, characterized in that: The speed limiting assembly includes an elastic return member, a transmission member cooperating with the elastic return member, and a resistance component for decelerating, the elastic return member having a fixed rebound interval; the impeller assembly includes a transmission shaft and an impeller, the transmission shaft rotates with the impeller, and the elastic return member deforms and rebounds once every time the transmission shaft rotates one circle; when the elastic return member is deformed, it interferes with the resistance component through the transmission member to prevent the resistance component from rotating; when the rotation speed of the transmission shaft is less than the set working rotation speed, the transmission shaft is subjected to the resistance generated by the relative action of the elastic return member in the speed limiting assembly; when the rotation speed of the transmission shaft is greater than the set working rotation speed, the transmission shaft is subjected to the resistance generated by the relative action of the elastic return member and the resistance component in the speed limiting assembly; the resistance component is provided with an elastic member, which keeps the resistance component in an initial state when not subjected to external force, and ensures that the resistance component automatically resets after the external force ends.

3. The vehicle-mounted vertical wind power device according to claim 2, characterized in that: The elastic reset member has an action stroke. After the transmission shaft rotates by degree a, the elastic reset member completes the entire action stroke and begins to reset, so that the reset stroke of the elastic reset member remains the same each time, and thus the rebound interval time is the same each time, where a≤180°.

4. The vehicle-mounted vertical wind power device according to claim 2, characterized in that: The transmission shaft is provided with an acting part, which interacts with the resistance component and the elastic reset component respectively when rotating; the elastic reset component includes a movable rod movably arranged in the vertical direction and a spring for providing elasticity; the resistance component includes a resistance component, a rotating part connected to the resistance component and a torsion spring acting on the rotating part, and the torsion spring forms the elastic component; the transmission component includes a first rack that rises and falls synchronously with the movable rod, a gear meshing with the first rack, and a second rack horizontally arranged and meshing at the bottom of the gear, a limiting hole is arranged in the middle of the rotating part, and the limiting hole remains horizontal and corresponds to the second rack when the resistance component maintains an initial state through the torsion spring; when the elastic reset component contracts, the first rack descends and the gear rotates to make the second rack move toward the limiting hole, thereby limiting the rotation of the rotating part.

5. The vehicle-mounted vertical wind power device according to claim 4, characterized in that: The elastic reset member is provided with a damping portion in the first half of its rebound path, and the damping portion acts on the spring before the deformation of the elastic reset member is restored to half, so as to slow down the recovery of the elastic reset member and thereby increase the rebound interval.

6. The vehicle-mounted vertical wind power device according to claim 5, characterized in that: The damping size of the damping part is adjustable to control the increase of the rebound interval; the maximum value of the working resistance of the damping part is smaller than the value of the force when the deformation of the elastic reset member reaches half the action stroke.

7. The vehicle-mounted vertical wind power device according to claim 5, characterized in that: When the elastic return member is fully restored, the second rack leaves the limiting hole to release the restriction; the top of the resistance member is elastically deformable, and the resistance member is initially inclined toward the side away from the elastic return member and its top height is higher than the action part. Under normal working conditions, when the transmission shaft rotates and acts on the resistance member, the torsion spring is overcome to rotate the rotating part, and the action part passes through the resistance member normally to reduce the energy loss of the resistance member to the transmission shaft; when the transmission shaft speed exceeds the set working speed and the transmission shaft rotates to contact the resistance member, the elastic return member has not been fully reset, and the transmission shaft interferes with the resistance member during rotation. At this time, the resistance member is restricted by the second rack and cannot rotate. The transmission shaft acts on the top of the resistance member and passes through it after elastic deformation to increase the energy loss of the resistance member to the transmission shaft. Subsequently, when the transmission shaft continues to rotate until it passes before the elastic return member, the elastic return member is fully reset, and the transmission shaft continues to act on the elastic return member to complete the next cycle of rotation.

8. The vehicle-mounted vertical wind power device according to claim 2, characterized in that: The transmission shaft includes a fixed part at the bottom and a movable part at the top, and the fixed part and the movable part are detachably fixed to each other. The vehicle-mounted vertical wind turbine also includes a gravity support structure, and the gravity support structure is suitable for supporting both ends of the movable part. The bottom of the movable part passes through the gravity support structure, and the fixed part is connected to the bottom of the movable part passing through the gravity support structure.

9. The vehicle-mounted vertical wind power device according to claim 8, characterized in that: A retractable support frame is arranged between the impeller and the transmission shaft, and the retractable support frame includes at least two detachable adjustment rods, and each of the adjustment rods includes a plurality of adjustable holes; when the gravity support structure is installed horizontally, the impeller reduces the maximum rotation radius of the impeller by contracting the adjustment rods.

10. The vehicle-mounted vertical wind power device according to claim 1, characterized in that: The speed limiting assembly includes a manual adjustment portion, and the manual adjustment portion is suitable for manually applying pressure to adjust the rotation resistance of the impeller assembly.

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