Booster suitable for photovoltaic tracking system and photovoltaic tracking system

Abstract

The utility model discloses a booster suitable for a photovoltaic tracking system and the photovoltaic tracking system, and relates to the technical field of photovoltaic tracking systems, the booster suitable for the photovoltaic tracking system comprises a fixing member, and the fixing member is provided with a first combination part; the movable part is in rotary fit with the fixed part, and a second combination part is arranged on the movable part; the power assisting unit comprises an elastic part; the elastic part is arranged between the movable part and the fixed part, one end of the elastic part is connected with the fixed part, and the conversion structure is arranged at the other end of the elastic part and located between the movable part and the fixed part; the switching structure comprises a switching part, and the switching part and the elastic piece are sequentially arranged in the radial direction of the fixing piece; the change-over part is matched with the second combination part to achieve force storage or energy release of the elastic piece, or the change-over part is matched with the first combination part to achieve deformation of the elastic piece. The utility model has the advantages of safety, reliability, smaller axial size, high automation degree, strong practicability, economy and environmental protection.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic tracking system technology, specifically to a booster and a photovoltaic tracking system suitable for photovoltaic tracking systems. Background Technology

[0002] With global climate change, the demand for renewable energy, and policy support from many countries, photovoltaic power generation technology has been developing and progressing in recent years, and the photovoltaic power generation market has also grown rapidly. Photovoltaic power generation is a technology that uses photovoltaic panels, controllers, and inverters to directly convert light energy into electrical energy by utilizing the photovoltaic effect at the semiconductor interface.

[0003] As photovoltaic (PV) power generation technology continues to develop, PV tracking systems utilize automatic tracking systems to track the movement of the sun, allowing sunlight to directly hit the PV array (i.e., PV panels), increasing the amount of solar radiation received, thereby improving power generation efficiency. During the process of using the automatic tracking system to track the movement of the sun, the PV panels rotate around an axis with the support of the PV support structure, following the movement of the sun.

[0004] The rotating shaft of a photovoltaic panel is usually set horizontally. The photovoltaic panel has a cantilever design. When the photovoltaic panel is driven to rotate by a power source (such as a motor), the following situations may occur: First, the center of gravity of the photovoltaic panel moves from a high position to a low position. In this case, the torque output by the power source is usually used to keep the photovoltaic panel from rotating freely, that is, to overcome the effect of gravity. Second, the center of gravity of the photovoltaic panel moves from a low position to a high position. In this case, the torque output by the power source must not only overcome the effect of gravity, but also be able to drive the photovoltaic panel to move.

[0005] Furthermore, in both of the above scenarios, the influence of gravity on the photovoltaic panel is greatest when the center of gravity of the photovoltaic panel is at the same horizontal position as the central axis of the rotation axis.

[0006] Therefore, when selecting a power source to drive a load rotating around a non-vertically positioned drive shaft, the output torque must be sufficient to satisfy the condition that the center of gravity of the load is located at the same horizontal position as the central axis of the rotating shaft. However, when the load rotates around the shaft, the power of the power source will be excessive, which will increase the cost.

[0007] To solve this problem, some have proposed using springs to assist the power source. As we all know, springs cannot be stretched indefinitely. At the same time, given the spring constant, as the spring deformation increases, the feedback force also increases. That is, the spring force is directly proportional to the deformation. As a result, the angle at which the rotating shaft drives the load to rotate is limited, which makes it unsuitable for photovoltaic panel tracking. This is a problem that urgently needs to be solved. Utility Model Content

[0008] The primary objective of this invention is to provide an assist device suitable for photovoltaic tracking systems, thereby addressing the problem of power source assistance in photovoltaic tracking systems. This invention also provides an assist device suitable for photovoltaic tracking systems.

[0009] The present invention is achieved by the following technical solution:

[0010] As a first aspect of this application, a booster suitable for a photovoltaic tracking system includes:

[0011] The fastener has a first connecting portion.

[0012] The movable component is rotatably engaged with the fixed component, and the movable component is provided with a second connecting part;

[0013] The assist unit includes:

[0014] An elastic element is disposed between the movable element and the fixed element, with one end of the elastic element connected to the fixed element.

[0015] A conversion structure is provided at the other end of the elastic member, located between the movable member and the fixed member;

[0016] The conversion structure includes a connecting part, and the connecting part and the elastic element are arranged sequentially along the radial direction of the fixing element;

[0017] In the initial state, with the fastener abutting, the adapter part engages with the second connecting part;

[0018] During the energy storage process, the movable component rotates along the first direction, and drives the transition part to rotate through the second joint, thereby pulling the elastic component to deform through the conversion structure; when the elastic component reaches the predetermined position and the deformation of the elastic component reaches the predetermined value, the transition part separates from the second joint and cooperates with the first joint under the action of the movable component, and the elastic component is in an energy storage state;

[0019] When the energy is released, the movable member rotates in the opposite direction of the first direction. When it reaches the predetermined position, the connecting part disengages from the first connecting part and re-engages with the second connecting part. The elastic force of the elastic member acts on the second connecting part through the connecting part, thereby driving the movable member to continue rotating in the opposite direction of the first direction until the elastic member returns to its initial state.

[0020] Optionally, the contact surface of the adapter for contacting the fixed member or the movable member is a smooth curved surface, or the adapter is provided with rollers and / or balls, and the adapter contacts the fixed member or the movable member through the rollers and / or balls.

[0021] Optionally, the conversion structure further includes a driven member, the other end of the elastic member is connected to the driven member, the adapter is provided on the driven member, and the driven member and the fixing member form a rotational engagement.

[0022] Optionally, the adapter is hinged to the driven member.

[0023] Optionally, the driven member has a through hole along the radial direction of the fixed member, and the adapter is movably inserted into the through hole.

[0024] Optionally, the follower may be any one of the following shapes: I-shaped, L-shaped, ring-shaped, fan-shaped, V-shaped, and Y-shaped.

[0025] Optionally, the first connecting portion is a first groove provided on the fixed member, and the second connecting portion is a second groove provided on the movable member.

[0026] Optionally, the elastic element may be at least one of a planar spiral spring, a coil spring, a torsion spring, a tension spring, or rubber.

[0027] Optionally, the number of the adapters is at least one set; when the number of the adapters is two or more sets, the multiple sets of adapters are arranged in a ring array.

[0028] Optionally, the number of the assist units is at least one set, and when the number of the assist units is two or more sets, the multiple sets of assist units are coaxially arranged.

[0029] Optionally, multiple sets of the assist units sequentially accumulate power at preset time intervals, and the moving parts of the multiple sets of assist units rotate at the same angle along the first direction when accumulating power.

[0030] As a second aspect of this application, it includes the booster described above.

[0031] The advantages of this utility model are: it is safe and reliable, highly automated, practical, and has a smaller axial dimension, while also being economical and environmentally friendly.

[0032] First, when the center of gravity of the load (photovoltaic panel) moves from a high position to a low position (i.e., the moving part rotates along the first direction), the adapter abuts against the fixed part, thereby enabling the adapter to cooperate with the second joint. This allows the moving part to drive the elastic component to deform when it rotates along the first direction. The elastic component overcomes the effect of the load's gravity on the drive shaft when the center of gravity of the load moves from a high position to a low position until the deformation of the elastic component reaches a predetermined value. Then, the moving part abuts against the adapter and can rotate freely relative to the adapter, allowing the adapter to cooperate with the first joint. This ensures that the elastic component will not continue to deform, thus ensuring safety and reliability. Furthermore, since the switching between the adapter and the first and second joints does not require human intervention, it has a high degree of automation and strong practicality.

[0033] Secondly, the adapter and the elastic element are arranged in sequence along the radial direction of the fixing element, so the axial dimension can be smaller. Especially when multiple sets of assist units are set, it is more convenient to set more assist units or other components in their axial position.

[0034] Furthermore, through the adapter, when the center of gravity of the load moves from a high position to a low position, the elastic component is used to overcome the effect of the load's gravity on the drive shaft. When the center of gravity of the load moves from a low position to a high position, the elastic force of the already deformed elastic component can be used to assist the power source in driving the load to rotate. Therefore, it is beneficial to reduce the power of the power source, which reduces costs and is more environmentally friendly. Attached Figure Description

[0035] The following accompanying drawings describe in detail the exemplary embodiments disclosed in this application. The same reference numerals denote similar structures in several views of the drawings. Those skilled in the art will understand that these embodiments are non-limiting and exemplary, and the drawings are for illustrative purposes only and are not intended to limit the scope of this application. Other embodiments may similarly fulfill the intent of this application. It should be understood that the drawings are not drawn to scale. Wherein:

[0036] Figure 1 This is a schematic diagram of a booster applicable to a photovoltaic tracking system in the embodiments of this application;

[0037] Figure 2 This is an exploded view of the booster applicable to the photovoltaic tracking system in the embodiments of this application;

[0038] Figure 3 For this application Figure 2 Exploded view of the central booster unit;

[0039] Figure 4 This is a cross-sectional schematic diagram of the booster for a photovoltaic tracking system in its initial state, as described in the embodiments of this application.

[0040] Figure 5 This is a cross-sectional schematic diagram of the booster for a photovoltaic tracking system in the energy storage state, as described in the embodiments of this application.

[0041] The markings in the diagram are as follows:

[0042] 1. Fastener; 11. First joint;

[0043] 2. Moving part; 21. End cap; 22. Second joint;

[0044] 3. Assist unit; 31. Driven component; 32. Adapter; 33. Elastic component;

[0045] D. First direction. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the described embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It is understood that, without conflict, some technical means of the various embodiments described herein can be substituted for or combined with each other.

[0047] In the description of this application, the terms "first," "second," etc., are used only to distinguish the described objects and have no sequential or technical meaning. Therefore, objects specified with "first," "second," etc., may explicitly or implicitly include one or more of those objects. Furthermore, the words "one" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one, while "multiple" indicates at least two.

[0048] In the description of this application, the terms "connection," "abutment," "installation," "fixation," "contact," "support," and "reception," etc., should be interpreted broadly. For example, "connection" can be a split connection or a one-piece connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a non-detachable connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can also refer to the internal communication of two components or the interaction between two components. As another example, "abutment" can be a direct abutment or an indirect abutment through an intermediate medium. Furthermore, "reception" does not necessarily mean complete containment of the entire component; this concept also includes the containment of a portion that protrudes externally. Those skilled in the art can understand the specific meaning of the aforementioned terms in this application according to the specific circumstances.

[0049] In the description of this application, if there are terms such as "A is connected to B in a rotatable manner", it means that A and B are directly or indirectly connected, and A is able to rotate relative to B.

[0050] In the description of this application, references to "one embodiment" or "some embodiments" mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0051] Firstly, this embodiment discloses a photovoltaic tracking system, including a booster suitable for a photovoltaic tracking system.

[0052] Secondly, such as Figures 1 to 5 As shown, this embodiment discloses an auxiliary device suitable for photovoltaic tracking systems, comprising:

[0053] Fastener 1, wherein the fastener 1 is provided with a first connecting part 11;

[0054] The movable part 2 is rotatably engaged with the fixed part 1, and the movable part 2 is provided with a second connecting part 22;

[0055] Assist unit 3, the assist unit 3 includes:

[0056] Elastic member 33; disposed between the movable member 2 and the fixed member 1, and one end of the elastic member 33 is connected to the fixed member 1;

[0057] The conversion structure is located at the other end of the elastic member 33, between the movable member 2 and the fixed member 1;

[0058] The conversion structure includes a connecting part 32, and the connecting part 32 and the elastic member 33 are arranged sequentially along the radial direction of the fixing member 1;

[0059] In the initial state, with the fastener 1 abutting, the adapter 32 engages with the second connecting part 22;

[0060] During the energy storage process, the movable component 2 rotates along the first direction D, and drives the transition part 32 to rotate through the second connecting part 22, thereby pulling the elastic component 33 to deform through the conversion structure; when the elastic component 33 reaches the predetermined position and the deformation reaches the predetermined value, the transition part 32 separates from the second connecting part 22, and cooperates with the first connecting part 11 under the action of the movable component 2, and the elastic component 33 is in the energy storage state;

[0061] When the energy is released, the movable member 2 rotates in the opposite direction of the first direction D. When it reaches the predetermined position, the connecting part 32 disengages from the first connecting part 11 and re-engages with the second connecting part 22. The elastic force of the elastic member 33 acts on the second connecting part 22 through the connecting part 32, thereby driving the movable member 2 to continue rotating in the opposite direction of the first direction D until the elastic member 33 returns to its initial state.

[0062] It should be noted that, as Figure 3 , Figure 4 and Figure 5 As shown, the elastic element 33 is a planar spiral spring. It should be understood that, in this application, the elastic element 33 refers to a component that can deform under the action of an external force, and as the elastic element 33 deforms, it has the tendency to recover its shape before being subjected to the external force. When the elastic element 33 has the tendency to recover its shape before being subjected to the external force, it can apply a force to the external component. That is, in this embodiment, the elastic element 33 is used to overcome the force of the load on the transmission shaft and can assist the power source to drive the load to perform the desired movement through the transmission shaft. Therefore, although a planar spiral spring is shown in the accompanying drawings of this embodiment, in reality, the elastic element 33 can also be a coil spring, torsion spring, tension spring, etc., or a component of other shapes made of elastic rubber or other materials that can meet the requirements of the booster proposed in this application, or a combination of coil springs, torsion springs, tension springs or other elastic components.

[0063] It should also be noted that in this embodiment, the fixing member 1 is used to form a fixed connection with the outside and to fix one end of the elastic member 33; similarly, the movable member 2 is also used to form a fixed connection with the outside and can be rotated relative to the fixing member 1; therefore, when the booster proposed in this application is used in the transmission shaft, the fixing member 1 and the support end supporting the transmission shaft can be fixedly connected, and the movable member 2 and the load driven by the transmission shaft can be fixedly connected; or the movable member 2 and the support end supporting the transmission shaft can be fixedly connected, and the fixing member 1 and the load driven by the transmission shaft can be fixedly connected; or, any one or all of the fixing member 1 and the movable member 2 can be composed of components that move relative to each other between the support end supporting the transmission shaft and the load driven by the transmission shaft, that is, the fixing member 1 and / or the movable member 2 can be integrated with components other than the booster proposed in this application.

[0064] It should be further explained that, in this embodiment, the conversion structure refers to the structure that can limit the direction of movement of the other end of the elastic member 33, and form a connection with the movable member 2 when it is necessary to store or release energy. At the same time, in the energy storage state, both ends of the elastic member 33 are fixedly connected to the fixed member 1 to keep the energy stored by the elastic member 33 due to deformation from being released. Therefore, the conversion structure can either directly set the other end of the elastic member 33 to a shape that meets the aforementioned requirements, or it can be an independent component connected to the other end of the elastic member 33.

[0065] To ensure connection with the movable part 2 when energy storage or release is required, and to ensure that both ends of the elastic member 33 are fixedly connected to the fixed part 1 in the energy storage state, a transition part 32 is required in the conversion structure. The function of the transition part 32 is to either cooperate with the movable part 2 under the abutment of the fixed part 1, or cooperate with the fixed part 1 under the abutment of the movable part 2; therefore:

[0066] First, such as Figure 4 and Figure 5 As shown, a channel is needed between the movable part 2 and the fixed part 1 to allow the transition part 32 to move.

[0067] Secondly, such as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the length H between the point in the adapter 32 that abuts against the fixed member 1 and the point that abuts against the movable member 2 needs to be greater than the width of the channel that allows the adapter 32 to move.

[0068] Again, such as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a clearance portion is also required to facilitate the installation of the transition portion 32. Specifically, a first connecting portion 11 needs to be provided on the fixed member 1 to ensure that when the transition portion 32 abuts against the movable member 2, the movable member 2 can move freely relative to the conversion structure and the fixed member 1. At the same time, a second connecting portion 22 needs to be provided on the movable member 2 to ensure that when the transition portion 32 abuts against the fixed member 1, the movable member 2 can drive the transition portion 32 through the second connecting portion 22, thereby driving the elastic member 33 through the conversion structure to deform the elastic member 33.

[0069] It should be understood that, in this embodiment, Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the first joint 11 is a first groove provided on the outer peripheral surface of the fixing member 1. In fact, the first joint 11 can also be a notch on the fixing member 1, or a structure on the fixing member 1 that allows the distance between the first joint 11 and the movable member 2 to be not less than the size H of the transition part 32. The second joint 22 is a second groove provided on the inner peripheral surface of the movable member 2. Similarly, the second joint 22 can also be a notch on the movable member 2, or a structure on the movable member 2 that allows the distance between the second joint 22 and the fixing member 1 to be not less than the size H of the transition part 32.

[0070] It should also be noted that, such as Figures 3 to 5 As shown, although the shape of the adapter 32 is hammer-shaped, in reality, the structure of the adapter 32 only needs to satisfy the aforementioned functions.

[0071] It should be further explained that, in this embodiment, the adapter 32 and the elastic member 33 are arranged sequentially along the radial direction of the fixing member 1. This means that, under the premise of satisfying the aforementioned functions, the areas where the adapter 32 and the elastic member 33 are arranged can form annulus rings of different radii, and can be as follows: Figure 2 and Figure 3 , Figure 4 and Figure 5 The minimum radius of the ring formed by the area where the adapter 32 is set is greater than the maximum radius of the ring formed by the area where the elastic member 33 is set. Alternatively, the maximum radius of the ring formed by the area where the adapter 32 is set can be smaller than the minimum radius of the ring formed by the area where the elastic member 33 is set. Since the adapter 32 and the elastic member 33 are arranged sequentially along the radial direction of the fixing member 1, the axial dimension of the booster proposed in this embodiment can be made smaller, thereby saving more space in the axial direction of the fixing member 1 during installation and use.

[0072] It should be understood that, such as Figure 1 and Figure 2 As shown, when the movable part 2 is cylindrical, it is best to set end caps 21 at both ends. This can keep the assist unit 3 located between the movable part 2 and the fixed part 1 in a closed state, thereby extending its service life. It can also facilitate the rotational engagement between the movable part 2 and the fixed part 1 through the end caps 21. Furthermore, it can prevent accidental injury caused by the elastic part 33 jumping out when the elastic part 33 breaks unexpectedly, thus ensuring safety.

[0073] Furthermore, in this embodiment, in order to reduce the internal frictional resistance of the booster proposed in this application when the movable part 2 rotates relative to the fixed part 1 and improve the working efficiency of the booster, the contact surface of the adapter 32 for contacting the fixed part 1 or the movable part 2 is a smooth curved surface, or the adapter 32 is provided with rollers and / or balls, and the adapter 32 contacts the fixed part 1 or the movable part 2 through the rollers and / or balls.

[0074] Furthermore, in this embodiment, to facilitate the connection between the adapter 32 and the other end of the elastic member 33, the conversion structure also includes a follower 31. When the follower 31 is provided, the other end of the elastic member 33 is connected to the follower 31, the adapter 32 is provided on the follower 31, and the follower 31 and the fixing member 1 form a rotational engagement.

[0075] It should be understood that in this embodiment, the driven member 31 and the fixed member 1 form a rotational fit. The driven member 31 can be directly connected to the fixed member 1 and form a rotational fit with the fixed member 1, or the driven member 31 can be rotatably connected to the movable member 2, so that the driven member 31 and the fixed member 1 form a rotational fit.

[0076] It should be further noted that, in this embodiment, the adapter 32 is disposed on the driven member 31. Depending on the structure of the adapter 32, it can be disposed in different ways, for example:

[0077] The first method, such as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the adapter 32 is hinged to the driven member 31, meaning that the adapter 32 can rotate freely relative to the driven member 31 about the hinge axis.

[0078] In the second embodiment, the driven member 31 is provided with a through hole along the radial direction of the fixed member 1, that is, one end of the through hole opens towards the fixed member 1 and the other end opens towards the movable member 2. The adapter 32 is movably inserted into the through hole. In this case, the structure of the adapter 32 can be spherical or rod-shaped, and the dimension of the adapter 32 along the hole axis direction of the through hole is greater than the hole depth dimension of the through hole.

[0079] It should be understood that the aforementioned two methods describe the follower 31 and the adapter 32 as independent components. In fact, based on satisfying the functions of the follower 31 and the adapter 32, the follower 31 and the adapter 32 can be integrally formed. For example, the follower 31, which constitutes the main body, is rotated with the fixing member 1. An extension is provided on the main body, and the connection between the extension and the main body, i.e., the starting point of the extension, has a certain elasticity. In this case, the extension constitutes the adapter 32.

[0080] Furthermore, in this embodiment, when the follower 31 and the adapter 32 are separate components, the shape of the follower 31 can be any one of ring, fan, I-shape, V-shape, or Y-shape, provided that the aforementioned functions are satisfied.

[0081] Furthermore, in this embodiment, as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the number of adapters 32 is two sets. In fact, the number of adapters 32 can be one set, three sets or even more, that is, the number of adapters 32 is at least one set. Among them, when the number of adapters 32 is two or more sets, the multiple sets of adapters 32 are arranged in a ring array as optimal.

[0082] Furthermore, in this embodiment, as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the number of the assist unit 3 is at least one set, and when the number of the assist unit 3 is two or more sets, the multiple sets of the assist unit 3 are coaxially arranged.

[0083] Furthermore, in this embodiment, when there are two or more sets of assisting units 3, the multiple sets of assisting units 3 sequentially accumulate power at preset time intervals, and the angle of rotation of the movable part 2 along the first direction D is the same when the multiple sets of assisting units 3 accumulate power. In order to realize that the multiple sets of assisting units 3 accumulate power sequentially, it is only necessary to set the groove wall in the second groove that is adapted to each set of assisting units 3 for cooperating with the adapter 32 and driving the adapter 32 to move at different positions on the inner circumferential surface of the movable part 2, and the groove width of the second groove adapted to each set of assisting units 3 is different.

[0084] To more clearly describe the application of the booster proposed in this application, taking a photovoltaic tracking system as an example, a photovoltaic tracking system typically includes a pole, a power source, a drive shaft, and a photovoltaic panel. The support end of the drive shaft is fixedly connected to the pole, one end of the photovoltaic panel is located at the output end of the drive shaft, and the power source is connected to the active end of the drive shaft. The photovoltaic panel is driven to move through the drive shaft to track sunlight and improve power generation efficiency. For ease of description, the fixing member 1 proposed in this embodiment is fixedly connected to the support end of the drive shaft, and the movable member 2 is connected to the output end of the drive shaft.

[0085] In the initial state, the photovoltaic panel is located above the drive shaft and is vertically upward or nearly vertically upward. At this time, the booster's state is as follows: Figure 4As shown, under the abutment of the fastener 1, the adapter 32 cooperates with the second connecting part 22, that is, a part of the adapter 32 is embedded in the second groove that serves as the second connecting part 22.

[0086] During the energy storage process, the power source drives the photovoltaic panel to rotate along the first direction D via the drive shaft, such as... Figure 4 and Figure 5 As shown, the output end of the drive shaft drives the movable part 2 to rotate relative to the fixed part 1 along the first direction D. The second connecting part 22 drives the transition part 32 to rotate, thereby pulling the elastic part 33 to deform through the conversion structure. When the elastic part 33 reaches a predetermined position and the deformation of the elastic part 33 reaches a predetermined value, the transition part 32 separates from the second connecting part 22 and cooperates with the first connecting part 11 under the action of the movable part 2. The elastic part 33 is in an energy storage state. Thus, the elastic part 33 is used to assist the power source to overcome the effect of the photovoltaic panel's gravity on the drive shaft, and the deformation of the elastic part 33 is used to store energy.

[0087] During energy release, the power source drives the photovoltaic panel to move in the opposite direction to the first direction D via a drive shaft, such as... Figure 4 and Figure 5 As shown, the output end of the drive shaft drives the movable part 2 to rotate relative to the fixed part 1 in the opposite direction of the first direction D. When it reaches the predetermined position, the adapter 32 disengages from the first coupling part 11 and re-engages with the second coupling part 22. The elastic force of the elastic member 33 acts on the second coupling part 22 through the adapter 32, thereby driving the movable part 2 to continue rotating in the opposite direction of the first direction D until the elastic member 33 returns to its initial state. This realizes the use of the elastic member 33 as an auxiliary power source to drive the photovoltaic panel to rotate, and realizes the effective utilization of the energy accumulated by the elastic member 33 due to deformation.

[0088] From the above, it is clear that the booster proposed in this embodiment has the advantages of being safe and reliable, having a smaller axial dimension, a high degree of automation, strong practicality, and being economical and environmentally friendly. Specifically:

[0089] First, when the center of gravity of the load moves from a high position to a low position (i.e., the movable part 2 rotates along the first direction D), the adapter 32 abuts against the fixed part 1, thereby enabling the adapter 32 to cooperate with the second connecting part 22. This allows the movable part 2 to rotate along the first direction D, causing the elastic part 33 to deform. The elastic part 33 overcomes the effect of the load's gravity on the transmission shaft when the center of gravity of the load moves from a high position to a low position, until the deformation of the elastic part 33 reaches a predetermined value. Then, the movable part 2 abuts against the adapter 32, and the movable part 2 can rotate freely relative to the adapter 32, allowing the adapter 32 to cooperate with the first connecting part 11. This ensures that the elastic part 33 will not continue to deform, thus ensuring safety and reliability. Furthermore, since the switching between the adapter 32 and the first connecting part 11 and the second connecting part 22 does not require human intervention, it has a high degree of automation and strong practicality.

[0090] Secondly, the adapter 32 and the elastic member 33 are arranged in sequence along the radial direction of the fixing member 1, so the axial dimension can be smaller. Especially when multiple sets of assist units 3 are set, it is more convenient to set more assist units 3 or other components by setting multiple sets of assist units 3 coaxially.

[0091] Furthermore, through the adapter 32, when the center of gravity of the load moves from a high position to a low position, the elastic member 33 is used to overcome the effect of the load's gravity on the drive shaft. When the center of gravity of the load moves from a low position to a high position, the elastic force of the already deformed elastic member 33 can be used to assist the power source in driving the load to rotate. Therefore, it is beneficial to reduce the power of the power source, which reduces costs and is more environmentally friendly.

Claims

1. A booster for photovoltaic tracking systems, characterized in that, include: The fastener has a first connecting portion. The movable component is rotatably engaged with the fixed component, and the movable component is provided with a second connecting part; The assist unit includes: An elastic element is disposed between the movable element and the fixed element, with one end of the elastic element connected to the fixed element. A conversion structure is provided at the other end of the elastic member, located between the movable member and the fixed member; The conversion structure includes a connecting part, and the connecting part and the elastic element are arranged sequentially along the radial direction of the fixing element; In the initial state, with the fastener abutting, the adapter part engages with the second connecting part; During the energy storage process, the movable component rotates along the first direction, and drives the transition part to rotate through the second joint, thereby pulling the elastic component to deform through the conversion structure; when the elastic component reaches the predetermined position and the deformation of the elastic component reaches the predetermined value, the transition part separates from the second joint and cooperates with the first joint under the action of the movable component, and the elastic component is in an energy storage state; When the energy is released, the movable member rotates in the opposite direction of the first direction. When it reaches the predetermined position, the connecting part disengages from the first connecting part and re-engages with the second connecting part. The elastic force of the elastic member acts on the second connecting part through the connecting part, thereby driving the movable member to continue rotating in the opposite direction of the first direction until the elastic member returns to its initial state.

2. The booster as described in claim 1, characterized in that, The contact surface of the adapter for contacting the fixed member or the movable member is a smooth curved surface, or the adapter is provided with rollers and / or balls, and the adapter contacts the fixed member or the movable member through the rollers and / or balls.

3. The booster as described in claim 1, characterized in that, The conversion structure also includes a driven member, the other end of the elastic member is connected to the driven member, the adapter is provided on the driven member, and the driven member and the fixing member form a rotational fit.

4. The booster as described in claim 3, characterized in that, The adapter is hinged to the driven member.

5. The booster as described in claim 3, characterized in that, The driven member has a through hole along the radial direction of the fixed member, and the adapter is movably inserted into the through hole.

6. The booster as described in claim 3, characterized in that, The driven member is any one of the following shapes: I-shaped, L-shaped, ring-shaped, fan-shaped, V-shaped, and Y-shaped.

7. The booster as described in claim 1, characterized in that, The first connecting part is a first groove provided on the fixed member, and the second connecting part is a second groove provided on the movable member.

8. The booster as described in claim 1, characterized in that, The elastic element may be at least one of a planar spiral spring, a coil spring, a torsion spring, a tension spring, or rubber.

9. The booster as described in any one of claims 1 to 8, characterized in that, The number of the adapter is at least one set; when the number of the adapter is two or more sets, the multiple sets of the adapter are arranged in a ring array.

10. The booster as described in claim 9, characterized in that, The number of the assist unit is at least one set, and when the number of the assist unit is two or more sets, the multiple sets of the assist unit are coaxially arranged.

11. The booster as described in claim 9, characterized in that, Multiple sets of the assist units sequentially accumulate power at preset time intervals, and the moving parts of the multiple sets of assist units rotate at the same angle along the first direction when accumulating power.

12. A photovoltaic tracking system, characterized in that, Includes the booster as described in any one of claims 1-11.

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