Power assisting unit, booster and photovoltaic tracking system
By designing the power-assisting unit and utilizing the coordination of elastic parts and retaining frames, the problem of uneven force on the power-assisting structure is solved, achieving a more efficient and safe power-assisting effect.
Patent Information
- Application Number
- CN202422713222.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-07
AI Technical Summary
The existing power-assisting structure is inefficient and unevenly distributed, resulting in increased friction, which affects the efficiency and safety of the booster.
A power-assisting unit is designed, in which a first elastic member is connected to a second elastic member at one end of the power-assisting assembly and a second elastic member at the other end. The deformation of the elastic member is controlled by a retaining frame and a transition part to ensure balanced force. The deformation of the elastic member is maintained by cooperating with a slide and a joint to avoid displacement.
The working efficiency and safety of the power-assisting unit are improved, friction is reduced, and assembly is easy.
Smart Images
Figure CN223451900U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of power-assisted mechanism of rotating shaft, and specifically relates to a power-assisted unit, a power-assisted device and a photovoltaic tracking system. BACKGROUND
[0002] Shaft transmission technology is widely used, for example, a window is installed on a window frame through a rotating shaft, for example, a car gull wing door or trunk door is installed on a car body through a rotating shaft, for example, in a photovoltaic tracking system, a photovoltaic panel is connected with a fixed support through a rotating shaft, and for example, a bicycle wheel is connected with a frame.
[0003] In such applications, the rotating shaft is usually horizontally arranged or arranged non-perpendicularly to the ground; at this time, a load driven by the rotating shaft, such as a window, a door or a photovoltaic panel, is arranged offset, so that the center of gravity of the load driven by the rotating shaft cannot coincide with the central axis of the rotating shaft, and thus, in the rotating process, the center of gravity of the load driven by the rotating shaft also rotates around the rotating shaft, and thus, when the rotating shaft drives the load to move, the following two situations may occur: first, the center of gravity moves from a high position to a low position, at this time, the torque output by a power source (such as a motor) for driving the load to move through the rotating shaft is usually maintained to prevent the load from freely rotating, that is, to overcome the effect of gravity; second, the center of gravity moves from a low position to a high position, at this time, the torque output by the power source needs to overcome the effect of gravity and also needs to drive the load to move.
[0004] In the above two situations, when the center of gravity of the load and the central axis of the rotating shaft are located at the same horizontal position, the effect of gravity of the load is the largest.
[0005] Therefore, when selecting a power source for driving a load driven by a non-perpendicularly arranged rotating shaft to rotate around the shaft, the torque output by the power source needs to meet 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, and after the power source drives the load to move around the shaft, the power of the power source will be excessive, which leads to an increase in cost.
[0006] To solve this problem, in the Chinese patent application with the application number CN202420340369.6 previously proposed by the applicant, a power-assisted device suitable for a photovoltaic tracking system and a photovoltaic tracking system are disclosed, in order to save the radial dimension of the power-assisted structure, a load rotates around a shaft, a movable member is connected to the shaft, a spring member is arranged in the axial direction of the movable member, the spring member is deformed by the movable member, and the spring member assists the power source in driving the load. Since the spring member is arranged on one side of the axial direction of the movable member, the movable member is subjected to uneven stress during the deformation of the spring member, and may be deflected, which increases the friction of rotation and affects the efficiency of the power-assisted structure. Therefore, how to improve the efficiency of the power-assisted structure is a problem that needs to be solved at present. The utility model discloses a content
[0007] The first object of the utility model is to provide a kind of power unit, to solve the problem of low efficiency of existing power structure.The second object of the utility model is to provide a kind of power unit.The third object of the utility model is to provide a kind of photovoltaic tracking system.
[0008] The utility model discloses the implementation is completed by following technical scheme:
[0009] As the first aspect of the utility model, power unit, including power assembly and elastic piece:
[0010] The power assembly includes driving piece, the through hole of being equipped with in the driving piece and the first connecting portion for being connected with external load on the driving piece, along the axial direction of the through hole, one end of the power assembly is equipped with the first connecting seat for connecting elastic piece, the other end is equipped with the second connecting seat for connecting elastic piece;
[0011] The elastic piece includes first elastic piece and second elastic piece, the first elastic piece is equipped at one end of the driving piece, the second elastic piece is equipped at the other end of the driving piece, one end of the first elastic piece is connected to the first connecting seat, one end of the second elastic piece is connected to the second connecting seat, the other end of the first elastic piece and the second elastic piece is equipped with the connecting portion for being connected with external.
[0012] Optionally, the power assembly further includes retainer, the retainer is rotatably connected with the driving piece, the retainer includes first retainer and second retainer, the first retainer is equipped at one end of the driving piece, the second retainer is equipped at the other end of the driving piece, the first connecting seat is equipped on the first retainer, and the second connecting seat is equipped on the second retainer.
[0013] Optionally, the first retainer and the second retainer are symmetrically arranged at both ends of the driving piece.
[0014] Optionally, the pushing portion, the first slide and the second slide on the circumferential surface of the driving piece, the arc radius of the first slide is less than the arc radius of the second slide,
[0015] One end of the pushing portion is connected with one end of the first slide, the other end is connected with one end of the second slide, and the other end of the first slide is connected with the other end of the second slide.
[0016] Further include adapter, one end of the adapter is hinged with the first retainer and the second retainer, and the hinge axis is parallel with the axis of the through hole.
[0017] The adapter is provided with a first joint part for cooperating with the pushing part.
[0018] Optionally, the line where the arc center of the first slide is located and the line where the arc center of the second slide is located coincide.
[0019] Optionally, the first joint part is an arc-shaped protrusion provided on the adapter or a roller or a roller bearing provided on the adapter.
[0020] Optionally, the other end of the adapter is further provided with a second joint part for cooperating with the outside.
[0021] Optionally, the second joint part is an arc-shaped protrusion provided on the adapter or a roller or a roller bearing provided on the adapter.
[0022] As a second aspect of the utility model, the booster comprises at least one set of the booster unit as described above.
[0023] The through shaft is arranged in the through hole, and the driving part is connected with the through shaft through the first connecting part.
[0024] The fixing part is in a cylindrical shape, is sleeved on the booster unit, and is in rotational cooperation with the through shaft.
[0025] As a third aspect of the utility model, the booster is applied to a photovoltaic system.
[0026] The utility model has the advantages of improving the working efficiency of the booster unit, improving the safety of the booster unit, and facilitating the assembly of the booster unit.
[0027] First, the booster unit provided by the utility model utilizes the first connecting seat at one end of the booster assembly to connect the first elastic part, and utilizes the second connecting seat at the other end to connect the second elastic part; in use, the external load drives the first elastic part and the second elastic part to deform simultaneously through the booster assembly, the first elastic part and the second elastic part apply the same force to the booster assembly along the radial direction of the through hole, so that the force applied to the booster assembly is more balanced; the booster assembly is prevented from deviating due to uneven force, the axis of the booster assembly is prevented from being inconsistent with the rotation axis, the friction between the booster assembly and the outside is prevented from increasing when the booster assembly rotates around the shaft; therefore, the friction between the booster assembly and the outside is smaller when the booster unit provided by the utility model is utilized, so that the working efficiency is improved.
[0028] Second, the utility model discloses a power assisting unit, utilize the retainer, the adapter and set up on the surface of the movable part push part, first slide, second slide, realize when the deformation of elastic part reaches certain degree, can utilize adapter and external cooperation to realize the deformation of elastic part is kept to the relative rotation angle between driving part relative to retainer is not influenced by the deformation limit of elastic part, both ensure that the power assisting unit of the utility model can effectively assist, and the safety of the power assisting unit of the utility model is improved.
[0029] Third, utilize first retainer, set up first connecting seat on first retainer, utilize second retainer, set up second connecting seat on second retainer, when utilizing the power assisting unit of the utility model, it is easier to assemble. BRIEF DESCRIPTION OF DRAWINGS
[0030] The following drawings detail the exemplary embodiments disclosed in the present application. Identical reference numerals in several views of the drawings represent similar structures. Those of ordinary skill in the art will understand that these embodiments are non-limiting, exemplary embodiments, and the drawings are for illustrative and descriptive purposes only and are not intended to limit the scope of the present application, and other embodiments can also accomplish the application intent in the present application. It should be understood that the drawings are not drawn to scale. Among them:
[0031] Figure 1 It is a schematic diagram of the power assisting unit in the embodiments of the present application;
[0032] Figure 2 It is a schematic diagram of the cross section of Figure 1
[0033] Figure 3 It is an exploded schematic diagram of Figure 1
[0034] Figure 4 It is a schematic diagram of the power assisting unit in the embodiments of the present application;
[0035] Figure 5 It is a schematic diagram of the cross section of Figure 4
[0036] The respective marks in the figure are:
[0037] 1, power assisting unit; 11, power assisting assembly; 111, driving part; 1111, first slide; 1112, second slide; 1113, push part; 112, retainer; 1121, first retainer; 1122, second retainer; 12, adapter; 121, first combination part; 122, second combination part; 13, elastic part; 131, first elastic part; 132, second elastic part;
[0038] 2, fixed part; 21, retaining groove;
[0039] 3. Through shaft. DETAILED DESCRIPTION
[0040] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application. It can be understood that some technical means of the various embodiments described herein can be replaced or combined with each other without conflict.
[0041] In the description of the present application, if there are terms such as "first", "second", etc., they are only used to distinguish the described objects, and do not have any sequential or technical meaning. Therefore, the objects defined with "first", "second", etc. can include one or more of the objects explicitly or implicitly. And "one" or "an" and the like similar words do not represent a quantity limitation, but represent the existence of at least one, and "multiple" represents no less than two.
[0042] In the description of the present application, if there are terms such as "connection", "abutment", "installation", "fixation", "contact", "support", "accommodation", etc., they should be understood in a broad sense. For example, "connection" can be separate connection or integral connection; can be direct connection or indirect connection through an intermediate medium; can be non-detachable connection or detachable connection; can be mechanical connection or electrical connection; or can be the internal communication of two elements or the interaction relationship between two elements. For another example, "abutment" can be direct abutment or indirect abutment through an intermediate medium. For another example, "accommodation" does not necessarily mean complete accommodation of the whole, and the concept also includes the case of partial accommodation with part protruding externally. For those skilled in the art, the specific meaning of the foregoing terms in the present application can be understood according to the specific circumstances.
[0043] In the description of the present application, if there are terms such as "A is connected to B in a rotatable manner" and the like, it means that A is directly or indirectly connected to B, and A can rotate relative to B.
[0044] In the description of the present application, reference to "one embodiment" or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrases "in one embodiment" or "in some embodiments" in various places in the specification are not necessarily all referring to the same embodiment, but can refer to one or more but not all embodiments.
[0045] As shown in Figures 1 to 5 , a first aspect of the present embodiment discloses a force assisting unit 1 comprising a force assisting assembly 11 and a resilient member 13:
[0046] The force assisting assembly 11 comprises a driving member 111, wherein a through hole penetrating through the driving member 111 and a first connecting portion for connecting with an external load are arranged on the driving member 111, and along the axial direction of the through hole, one end of the force assisting assembly 11 is provided with a first connecting seat for connecting the resilient member 13, and the other end is provided with a second connecting seat for connecting the resilient member 13.
[0047] The resilient member 13 comprises a first resilient member 131 and a second resilient member 132, wherein the first resilient member 131 is arranged at one end of the driving member 111, the second resilient member 132 is arranged at the other end of the driving member 111, one end of the first resilient member 131 is connected to the first connecting seat, one end of the second resilient member 132 is connected to the second connecting seat, and the other end of the first resilient member 131 and the other end of the second resilient member 132 are both provided with a connecting portion for connecting with an external load.
[0048] It should be noted that in the present embodiment, the resilient member 13 refers to a component that can be deformed under the action of an external force and can restore to the state before the action of the external force when the external force disappears; therefore, a coil spring, a torsion spring, a tension spring, or other components with other shapes made of materials such as rubber with elasticity that can meet the requirements of the resilient member 13 proposed in the present application can be used as the resilient member 13 of the present embodiment, or a combination of a coil spring, a torsion spring, a tension spring, or other components with elasticity.
[0049] It should be noted that the first connecting portion is a part for fixedly connecting the driving member 111 with an external load, which can be a spline arranged on the inner wall surface of the through hole as shown in Figure 2 and Figure 3 , or a key groove arranged on the inner wall surface of the through hole, or a pin hole arranged along the radial direction of the through hole.
[0050] It should be noted that in the present embodiment, the action of the assisting assembly 11 is to make the elastic member 13 deform by using external force, and to assist the external force by using the elastic force generated when the elastic member 13 deforms, in the present embodiment, the structure of the assisting assembly 11 includes but is not limited to the following:
[0051] The first kind, the assisting assembly 11 only includes the driving member 111, at this time, the first connecting seat is directly arranged at one end of the driving member 111, and the second connecting seat is directly arranged at the other end of the driving member 111, and the driving member 111 is connected with the first elastic member 131 and the second elastic member 132 through the first connecting seat and the second connecting seat respectively.
[0052] The second kind, as shown in Figures 1 to 3 , the assisting assembly 11 further includes a retainer 112, the retainer 112 is rotationally connected with the driving member 111, the retainer 112 includes a first retainer 1121 and a second retainer 1122, the first retainer 1121 is arranged at one end of the driving member 111, and the second retainer 1122 is arranged at the other end of the driving member 111, the first connecting seat is arranged on the first retainer 1121, and the second connecting seat is arranged on the second retainer 1122.
[0053] It should be noted that the first connecting seat and the second connecting seat are used to connect the elastic member 13, and the elastic member 13 also needs to be supported to avoid interference with the shaft connected to the through hole during the deformation of the elastic member 13, under the premise of meeting this function, the first connecting seat and the second connecting seat can be a cylinder corresponding to the through hole and extending along the axis of the through hole, and the cylinder wall is provided with a bayonet for connecting the elastic member 13.
[0054] It should be noted that in the present embodiment, in order to balance the force of the elastic member 13 to the driving member 111 through the first retainer 1121 and the second retainer 1122, as shown in Figure 1 and Figure 3 , the first retainer 1121 and the second retainer 1122 are symmetrically arranged at both ends of the driving member 111.
[0055] Further, in the present embodiment, the driving member 111 drives the elastic member 13 to deform through the retainer 112, and the driving member 111 and the retainer 112 are rotationally connected, in order to control the time of deformation of the elastic member 13, it is necessary to control the retainer 112 to keep synchronous rotation with the driving member 111 at a predetermined position or at a predetermined time, for this purpose, the following designs can be used, including but not limited to:
[0056] As shown in Figures 1 to 3As shown, the pushing part 1113, the first slide 1111 and the second slide 1112 on the circumferential surface of the driving part 111, the arc radius of the first slide 1111 is smaller than that of the second slide 1112,
[0057] One end of the pushing part 1113 is connected with one end of the first slide 1111, the other end is connected with one end of the second slide 1112, and the other end of the first slide 1111 is connected with the other end of the second slide 1112;
[0058] Further comprising an adapter part 12, one end of the adapter part 12 is hinged with the first holder 1121 and the second holder 1122, and the hinged axis is parallel to the axis of the through hole;
[0059] The adapter part 12 is provided with a first combination part 121 for cooperating with the pushing part 1113.
[0060] It should be noted that when the rotation axis is not perpendicular to the ground, the horizontal distance between the load center of gravity and the axis of the rotation axis changes constantly during the rotation of the load around the axis, so the torque demand of the load on the rotation axis changes constantly. In order to adapt to the change of torque, the adapter part 12 is arranged at different positions of the first slide 1111, and the distance between the adapter part 12 and the pushing part 1113 is controlled, so as to control the time of deformation of the elastic part 13, so as to better overcome the influence of the change of the center of gravity of the load on the torque demand of the rotation axis.
[0061] It should be noted that in order for the first combination part 121 to rotate stably around the axis when cooperating with the first slide 1111 or the second slide 1112, as shown in Figure 2 and Figure 3 As shown, the line where the arc center of the first slide 1111 is located and the line where the arc center of the second slide 1112 is located coincide.
[0062] It should be noted that in this embodiment, the adapter part 12 is used to form the connection between the holder 112 and the driving part 111 through the first combination part 121. The first combination part 121 can be embedded in the first slide 1111, and under the action of the pushing part 1113, the driving part 111 drives the holder 112 to rotate synchronously through the first combination part 121, and the holder 112 drives the elastic part 13 to deform. In order to facilitate the first combination part 121 to be embedded in the first slide 1111, the first combination part 121 can adopt the design including but not limited to the following: as shown in Figures 1 to 3As shown, the first connecting part 121 can be an arc-shaped protrusion on the adapter 12. In order to reduce the friction between the first connecting part 121 and the first slide 1111 and the first connecting part 121 and the second slide 1112, the first connecting part 121 can also be a roller or a roller bearing on the adapter 12.
[0063] It should be noted that when the plurality of assisting units 1 are used, in order to adapt to the change of the torque demand of the load on the rotating shaft, so that the elastic member 13 of the plurality of assisting units 1 starts to deform and / or ends the deformation within the preset time, thereby overcoming the influence of the change of the gravity center of the load on the torque demand of the rotating shaft, the holder 112 can be connected to the outside at the corresponding position, so that the elastic member 13 is kept in the deformed state, such as Figures 1 to 3 As shown, the other end of the adapter 12 can also be provided with a second connecting part 122 for cooperating with the outside.
[0064] Further, in the present embodiment, the adapter 12 is used to connect the holder 112 to the outside through the second connecting part 122. When the first connecting part 121 is separated from the pushing part 1113 and enters the second slide 1112, the first connecting part 121 is connected to the outside, and the driving member 111 rotates relative to the holder 112 and the outside.
[0065] Further, in the present embodiment, as shown Figures 1 to 3 The second connecting part 122 includes but is not limited to the following design: the second connecting part 122 can be an arc-shaped protrusion on the adapter 12. The second connecting part 122 can also be a roller or a roller bearing on the adapter 12.
[0066] It should be noted that in the process of driving the load by the assisting power source, the assisting unit 1 of the present embodiment first rotates the load around the rotating shaft in the first direction (when the rotating shaft is not perpendicular to the ground, the load moves from a high center of gravity to a low center of gravity), drives the driving member 111 to rotate through the through hole, drives the first slide 1111 to rotate relative to the first connecting part 121 of the adapter 12, and drives the holder 112 to rotate synchronously with the driving member 111 under the action of the pushing part 1113 when the pushing part 1113 rotates to the first connecting part 121, and the elastic member 13 starts to deform. The deformation of the elastic member 13 overcomes the influence of the load gravity on the torque of the rotating shaft;
[0067] Subsequently, when rotating to the predetermined position, the first connecting part 121 of the adapter 12 is separated from the pushing part 1113, and the second connecting part 122 enters the second slide 1112 and is connected to the outside, and the elastic member 13 is kept in the deformed state.
[0068] Finally, when the external load rotates around the rotating shaft in the opposite direction of the first direction (when the rotating shaft is not arranged perpendicular to the ground, the load moves from high to low), the driving member 111 rotates the second sliding rail 1112 relative to the second connecting portion 122 of the adapter 12, and when the second sliding rail 1112 rotates to the pushing portion 1113, the second connecting portion 122 is disconnected from the external connection, and at the same time, the first connecting portion 121 abuts against the pushing portion 1113. The elastic member 13 is released from the deformed state, and the force of the elastic member 13 is used to overcome the influence of the load gravity on the torque of the rotating shaft.
[0069] As a second aspect of the present embodiment, as shown in Figures 1 to 5 The booster includes at least one set of the booster unit 1 as described above.
[0070] The through shaft 3 is arranged in the through hole, and the driving member 111 is connected to the through shaft 3 through the first connecting portion.
[0071] The fixing member 2 is in a cylindrical shape and is sleeved on the booster unit 1, and the fixing member 2 is in rotational cooperation with the through shaft 3. The other end of the first elastic member 131 and the second elastic member 132 is connected to the fixing member 2.
[0072] It should be noted that in the present embodiment, the fixing member 2 is provided with a retaining groove 21 or a reserved notch, and the adapter 12 can be embedded in the retaining groove 21 or the reserved notch through the second connecting portion 122, so that the retainer 112 is connected to the fixing member 2 through the adapter 12, and the driving member 111 can rotate relative to the retainer 112 and the fixing member 2.
[0073] As a third aspect of the present embodiment, a photovoltaic system includes the booster as described above.
[0074] The present embodiment has the advantages of improving the working efficiency of the booster unit 1, improving the safety of the booster unit 1, and facilitating the assembly of the booster unit 1.
[0075] Firstly, the power assisting unit 1 provided in the embodiment is connected with the first elastic member 131 by the first connecting seat at one end of the power assisting assembly 11 and connected with the second elastic member 132 by the second connecting seat at the other end. In use, the external load drives the first elastic member 131 and the second elastic member 132 to deform simultaneously through the power assisting assembly 11, and the forces applied to the power assisting assembly 11 by the first elastic member 131 and the second elastic member 132 along the radial direction of the through hole are basically consistent, so that the stress of the power assisting assembly 11 is more balanced. The power assisting assembly 11 is prevented from deviating due to uneven stress, which causes the axis of the power assisting assembly 11 to be inconsistent with the rotation axis, and increases the friction between the power assisting assembly 11 and the outside when the power assisting assembly 11 rotates around the axis. Therefore, when the power assisting unit 1 provided in the embodiment is used, the friction between the power assisting assembly 11 and the outside is smaller, so that the work efficiency is improved.
[0076] Secondly, the power assisting unit 1 provided in the embodiment uses the retainer 112, the adapter 12, and the pushing part 1113, the first sliding channel 1111 and the second sliding channel 1112 arranged on the surface of the movable member, so that when the deformation of the elastic member 13 reaches a certain degree, the deformation of the elastic member 13 can be maintained by cooperating with the outside through the adapter 12, so that the relative rotation angle between the driving member 111 and the retainer 112 is not affected by the deformation limit of the elastic member 13, which not only ensures that the power assisting unit 1 provided in the embodiment can effectively assist, but also improves the safety of the power assisting unit 1 provided in the embodiment.
[0077] Thirdly, the first connecting seat is arranged on the first retainer 1121, and the second connecting seat is arranged on the second retainer 1122, so that the power assisting unit 1 provided in the embodiment is easier to assemble.
Claims
1. A power-assisting unit, characterized in that: Including power assist components and elastic parts: The power assist assembly includes an active member, the active member is provided with a through hole penetrating the active member and a first connecting portion for connecting to an external load, and along the axial direction of the through hole, one end of the power assist assembly is provided with a first connecting seat for connecting to the elastic member, and the other end is provided with a second connecting seat for connecting to the elastic member; The elastic member includes a first elastic member and a second elastic member, the first elastic member is arranged at one end of the active member, and the second elastic member is arranged at the other end of the active member, one end of the first elastic member is connected to the first connecting seat, and one end of the second elastic member is connected to the second connecting seat, and the other ends of the first elastic member and the second elastic member are both provided with a connecting portion for connecting to the outside.
2. The power-assisting unit according to claim 1, wherein: The power-assisting assembly also includes a retaining frame, which is rotatably connected to the active member. The retaining frame includes a first retaining frame and a second retaining frame. The first retaining frame is arranged at one end of the active member, and the second retaining frame is arranged at the other end of the active member. The first connecting seat is arranged on the first retaining frame, and the second connecting seat is arranged on the second retaining frame.
3. The power-assisting unit according to claim 2, wherein: The first retaining frame and the second retaining frame are symmetrically arranged at two ends of the active member.
4. The power-assisting unit according to claim 2 or 3, characterized in that: The pushing portion, the first slideway and the second slideway on the circumferential surface of the active member, the arc radius of the first slideway is smaller than the arc radius of the second slideway, One end of the pushing portion is connected to one end of the first slideway, and the other end is connected to one end of the second slideway, and the other end of the first slideway is connected to the other end of the second slideway; It also includes a transition portion, one end of which is hinged to the first retaining frame and the second retaining frame, and the hinge axis is parallel to the axis of the through hole; The transition portion is provided with a first coupling portion for cooperating with the pushing portion.
5. The power-assisting unit according to claim 4, wherein: The line where the arc center of the first slideway is located coincides with the line where the arc center of the second slideway is located.
6. The power-assisting unit according to claim 4, wherein: The first coupling portion is an arc-shaped protrusion provided on the adapter portion or a roller or roller bearing provided on the adapter portion.
7. The power-assisting unit according to claim 4, wherein: The other end of the transition portion is further provided with a second coupling portion for cooperating with the outside.
8. The power assist unit according to claim 7, wherein: The second coupling portion is an arc-shaped protrusion provided on the adapter portion or a roller or roller bearing provided on the adapter portion.
9. A booster, characterized in that: include: At least one group of power-assisting units according to any one of claims 1 to 8; A through shaft is inserted into the through hole, and the active member is connected to the through shaft via the first connecting portion; The fixing member is cylindrical and sleeved on the power-assisting unit. The fixing member and the through shaft form a rotational fit. The other ends of the first elastic member and the second elastic member are both connected to the fixing member.
10. A photovoltaic system, characterized in that: Comprising the booster as claimed in claim 9.