WO2018103339A1 - Mobile off-grid photovoltaic power generation and supply system - Google Patents

Abstract

The present invention relates to the technical field of solar cells. Disclosed is a mobile off-grid photovoltaic power generation and supply system, comprising: a container body; a flexible connection belt provided at the container body and switchable between a first state in which the flexible connection belt is stored in the container body and a second state in which the flexible connection belt is extended, a plurality of photovoltaic assemblies being fixed to the flexible connection belt; a tractor capable of moving to drive the flexible connection belt to switch between the first state and the second state; and a rolling-up assembly on which a slide rope is wound, the slide rope being driven and released by the tractor to support the extended flexible connection band in the second state. The present invention solves a problem in which a photovoltaic power generation and supply system is only applicable to certain regions and scenarios, thereby enabling a photovoltaic power generation and supply system to be applied across a wide range of scenarios, and enhancing convenience of using the photovoltaic power generation and supply system.

Description

 Movable off-grid photovoltaic power supply system

 Technical field

 The invention relates to the technical field of solar cells, in particular to a movable off-grid photovoltaic power generation and power supply system.

 Background technique

 With the increasing number of electrically driven vehicles, users are increasingly demanding the charging of electrically powered vehicles.

In the prior art, an electrically driven vehicle is mainly charged by a fixed charging place. For example, when a user drives an electric car on a road, when the electric car is low in power, the user needs to find a charging pile to charge the electric car.

However, due to the limited coverage of the grid, there are no facilities that can supply electricity in some areas, resulting in geographically restricted use of electrically driven vehicles.

 Summary of the invention

 In order to solve the problems of the prior art, the present invention provides a movable off-grid photovoltaic power generation system. The technical solution is as follows:

 In one aspect, a mobile off-grid photovoltaic power generation system is provided, the system comprising:

 Box

a flexible connecting belt, disposed on the box body, having a first state gathered in the box body and a second state of being unfolded, wherein the flexible connecting belt is fixed with a plurality of photovoltaic modules;

 a tractor that is movable for driving the flexible connecting strap to switch between the first state and the second state;

The winding assembly has a strop wound thereon, and in the second state, the zip line is driven by the tractor to be released to support the unfolded flexible connecting belt.

 Preferably, in the first state, the tractor is located within the casing.

 More preferably, the box is provided with a sliding groove that cooperates with the zip line.

In another aspect, a movable off-grid photovoltaic power generation system is provided, the system comprising a box, a flexible connecting belt disposed inside the box, a tractor disposed inside the box, and a a winding assembly outside the casing;

 Wherein, the flexible connecting belt is fixed with a plurality of photovoltaic modules;

 The tank is provided with a chute and a strop for the flexible connecting belt to move;

 The zip line is connected to the winding assembly;

The flexible connecting belt is moved by the sliding groove and the strop according to a moving direction of the tractor, in a first state gathered in the casing and a second state extending outside the casing Switch between.

 Optionally, the flexible connecting belt is suspended from the inside of the box by a plurality of supporting rods fixed to the movable pulley at both ends;

 The movable pulley is hung on the strop and placed in the sliding slot;

 The radius of the movable pulley is greater than the thickness of the photovoltaic module;

 The flexible connecting strap switches between the first state and the second state by movement of the movable pulley.

 Preferably, in the first state, the flexible connecting strap is suspended inside the cabinet by a plurality of support rods.

 More preferably, both ends of the support rod are provided with a movable pulley, and the movable pulley is hung on the strop and placed in the sliding slot;

 The flexible connecting belt is switched between the first state and the second state by movement of the movable pulley.

 More preferably, the radius of the moving pulley is greater than the thickness of the photovoltaic module.

 More preferably, the flexible connecting strip is provided with a hole through which the support rod is inserted.

More preferably, any adjacent photovoltaic modules on the flexible connecting strip are respectively spaced apart by a predetermined distance that is greater than a dimension of the support rod along the length of the flexible connecting strip.

 Further, the predetermined distance is greater than a diameter of the support rod.

Preferably, the open box comprises a body and an end detachable from the body, the end being connected to the tractor and moving with the tractor, the flexible connecting belt being connected to the end .

 More preferably, the zip line is connected to the end.

Further, in the first state, the flexible connecting strap is suspended inside the box by a plurality of support rods provided with movable pulleys at both ends; the movable pulley is hung on the strop and placed in the Inside the chute; a pusher is provided at a position corresponding to the movable pulley on the end portion.

 Preferably, the zip line is coupled to the winding assembly by a fixed pulley.

 More preferably, the system further includes a drive motor for driving the take-up assembly to release or retract the strop.

 Preferably, the winding assembly is disposed outside the casing.

 Preferably, the system further includes a plurality of telescoping rods for supporting the flexible connecting strip in the second state.

 More preferably, the upper end portion of the telescopic rod abuts the flexible connecting strip.

 Preferably, the system further includes a battery assembly, a circuit control box, and an inverter assembly.

 Preferably, the photovoltaic modules are evenly distributed on the front side of the flexible connecting strip.

 Preferably, the flexible connecting strip is made of a woven material.

 The movable off-grid photovoltaic power generation system provided by the invention, and the flexible connecting belt is unfolded and collapsed by the movement of the tractor, so that the flexible connecting belt is Switching between the first state of being gathered in the box body and the second state extending outside the box body, in the second state, the photovoltaic module generates electricity, and in the first state, the whole system can be conveniently moved, and the photovoltaic power generation system is solved. The use of fixed areas and limited application scenarios; the application scenarios of expanding photovoltaic power generation systems have been achieved, and the convenience of using photovoltaic power generation has been improved.

 DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

 1 is a schematic diagram showing a state of a movable off-grid photovoltaic power generation system according to an exemplary embodiment;

 2 is a cross-sectional view showing a movable off-grid photovoltaic power generation system according to another exemplary embodiment;

 3 is a schematic diagram showing a state of a movable off-grid photovoltaic power generation system according to another exemplary embodiment;

 4 is a partial schematic view of a flexible connecting strip according to another exemplary embodiment;

 FIG. 5 is a schematic structural diagram of a movable off-grid photovoltaic power generation system according to another exemplary embodiment; FIG.

 FIG. 6 is a schematic structural diagram of a movable off-grid photovoltaic power generation system according to another exemplary embodiment.

 detailed description

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with aspects of the invention as detailed in the appended claims.

 figure 1 Is a schematic structural view of a flexible connecting strap in a movable off-grid photovoltaic power generation system according to an exemplary embodiment when in a first state of being gathered in a casing.

 As shown in FIG. 1, the movable off-grid photovoltaic power generation system includes: a semi-open box 110, and a flexible connecting belt disposed inside the box. 120. A tractor 130 disposed inside the cabinet and a winding assembly 140 disposed outside the casing.

 Wherein, the flexible connecting strip 120 is fixed with a plurality of photovoltaic modules (not shown).

 The flexible connecting strip 120 can be folded and bent in any direction. In addition, the material of the flexible connecting strip 120 can satisfy the resistance 150 High temperature fire protection requirements, suitable for long-term use in outdoor ultraviolet light conditions.

 The housing is provided with a chute 150 and a strop 160 for the flexible connecting belt 120 to move. Two zip lines 160 Parallel to each other, the distance between the two strops 160 is greater than the width of the flexible connecting strip 120.

 The two short sides of the flexible connecting strip 120 are respectively fixed to the case 110.

 The flexible connecting belt 120 is moved by the chute 150 and the strop 160 according to the moving direction of the tractor 130, and is gathered in the cabinet. Transition between the first state and the expanded second state within 110.

 The zip line 160 is connected to the winding assembly 140.

 The winding assembly 140 is used for the winding strop 160 when the flexible connecting belt 120 is in the casing 110 In the first state, the sling 160 is in the retracted state, and the strop 160 is wound in the winding assembly 140; when the flexible connecting belt 120 is switched from the first state to the second state, the winding assembly 140 The zip line 160 is released; as the tractor 130 and the sling 160 move, the flexible strap 120 is in the deployed second state; when the flexible strap 120 When the second state transitions from the second state to the first state, the winding assembly 140 retracts the sling 160.

 Optionally, the winding assembly 140 is driven by a drive motor, and the winding assembly 140 can automatically release the strop 160 or automatically retract the strop 160. Specifically, the strop 160 is coupled to the winding assembly 140 via a fixed pulley, and the drive motor is specifically configured to drive the fixed pulley to rotate.

 2 is a cross-sectional view of the flexible connecting belt in the movable off-grid photovoltaic power generation system in a first state of being gathered in the casing. Figure 2 As shown, the photovoltaic module 121 is fixed on the flexible connecting strip 120, and the flexible connecting strip 120 to which the photovoltaic module 121 is fixed is naturally suspended by gravity, and the flexible connecting strip 120 The direction of the droop is perpendicular to the horizontal plane. The tractor unit 130 is located inside the casing 110, and a portion of the flexible connecting belt 120 is suspended above the tractor unit 130.

 As shown in FIG. 1, each support rod (not shown) is from the flexible connecting strip 120. Any two symmetrical metal holes are passed through, and a movable pulley 11 is fixed to each end of each support rod, that is, a support rod is arranged between any two symmetrical movable pulleys 11; the movable pulley 11 is hung on the zip line 160 It is placed in the chute 150; the strop 160 is connected to the winding assembly 140 via the fixed pulley 12. When the flexible connecting strip 120 is in the first state, the flexible connecting strip 120 The photovoltaic module 121 is suspended inside the casing 110 by a plurality of support rods to which the movable pulley 11 is fixed at both ends, as shown in Fig. 2. Steel cord 160 during unfolding or storage, during the opening process or during storage It is always tight. Moreover, the chute 150 gradually extends obliquely upward in the direction toward the side where the tractor is located. As shown in Fig. 2, it is apparent that the chute extends obliquely upward from left to right.

 In order to prevent the flexible connecting strip 120 from being gathered in the first state within the housing 110, the photovoltaic module fixed on the flexible connecting strip 120 121 Tight extrusion results in a circuit failure that causes the radius of the moving pulley to be greater than the thickness of the PV module 121.

 image 3 Is a schematic structural view of a flexible connecting strip in a movable off-grid photovoltaic power generation system according to an exemplary embodiment when in a second state extending outside the tank.

 As shown in Figure 3, the housing 110 includes a body having a cavity and an end 101 that is detachable from the body, the end 101 and the tractor The tail of the 130 is connected to move with the tractor. One end of the flexible connecting strip 120 and one end of the cable 160 are fixed to the end portion 101 to drive the flexible connecting belt when the tractor 130 moves to the outside of the body. 120 Following the movement of the tractor 130, extending outside the body, the zip line 160 is released outward. Wherein, the winding assembly 140 releases the speed of the strop 160 and the tractor 130 The speed of movement is the same. When the flexible strap 120 is fully deployed (i.e., switched to the second state), the tractor 130 stops moving and the photovoltaic module 121 is tiled over the flexible strap 120. On the front side, when sunlight is illuminated, the photovoltaic module 121 converts solar energy into electrical energy through photovoltaic action. When the second state is switched to the first state, the tractor 130 moves toward the body, and the winding assembly 140 The synchronous winding cable 160 and the flexible connecting belt 120 are gathered.

 Optionally, the photovoltaic component 121 is evenly distributed on the front side of the flexible connecting strip 120.

 In order to avoid circuit failure caused by the close pressing of the photovoltaic module, any two adjacent photovoltaic modules 121 in the length direction of the flexible connecting strip 120 A predetermined distance is spaced apart from the dimension of the support rod along the length of the flexible connecting strip. Specifically, in the embodiment, the support rod is cylindrical, and the predetermined distance is larger than the diameter of the support rod.

 FIG. 4 exemplarily shows a partial schematic view of the flexible connecting strip 120. As shown in Figure 4, the flexible connecting strip 120 The long side is provided with a metal circular hole 122, and the metal circular hole 122 is uniformly symmetrically distributed. On the same long side, the spacing between any two adjacent metal circular holes 122 is larger than a photovoltaic module. The width is less than the width of the two photovoltaic modules 121. Optionally, the spacing between any two adjacent metal circular holes 122 can be determined according to actual needs. a support rod 123 from the flexible connecting strip 120 Passing through the symmetrical two metal circular holes 123 below, since the support rod 123 is passed under the flexible connecting strip 120, the support rod 123 is not visible from above the flexible connecting strip 120.

 Figure 4 exemplarily shows a photovoltaic module 121 and a support rod 123 The arrangement of the present invention is not limited in this embodiment of the present invention, and those skilled in the art may combine other implementation manners according to actual needs.

 The movable off-grid photovoltaic power generation system provided by the invention, and the flexible connecting belt is unfolded and collapsed by the movement of the tractor, so that the flexible connecting belt is Switching between the first state of being gathered in the box body and the second state extending outside the body of the box body, in the second state, the photovoltaic module generates electricity, and in the first state, the whole system can be conveniently moved, and the photovoltaic power generation system is solved. The use area is fixed, and the application scenario is limited; the application scenario of expanding the photovoltaic power generation system is achieved, and the convenience of using photovoltaic power generation is improved.

 In addition, the power shortage in the world is still due to economic poverty or lack of grid coverage. More than 100 million, but most of the power-deficient areas have plenty of sunshine, and they can bring electricity to these areas through convenient mobile off-grid photovoltaic power generation systems.

 In an alternative embodiment based on the above embodiments, the movable off-grid photovoltaic power generation system further includes a battery assembly disposed outside the casing 110 170, and a circuit control box 180 disposed outside the cabinet 110, as shown in FIG.

 The movable off-grid photovoltaic system is controlled to switch between a working state or a stopped state by a circuit control box 180. Through the circuit control box The control flexible strap 120 is in a first state or a deployed second state that is collapsed within the housing 110.

 The flexible connecting strip 120 when the flexible connecting strip 120 is in the deployed second state Solar energy is converted to electrical energy and stored in battery assembly 170. Battery assembly 170 can also provide power to a mobile off-grid photovoltaic power generation system. Optional, tractor 130 The traction mode is automatic traction, and the battery assembly 170 supplies power to the charging slot of the tractor 130.

 Optionally, the movable off-grid photovoltaic power generation system further includes a cabinet 110 External inverter assembly (not shown). In order to meet the requirements of AC power in actual use, the movable off-grid photovoltaic power generation system also includes an inverter component, which converts the DC power generated by the PV module into AC power by the inverter component, or can be directly controlled by the inverter control system. Output DC and AC.

 Optionally, the circuit control box and the inverter components are integrated into one of the smaller mobile off-grid power generation systems.

 In an alternative embodiment based on the above embodiment, as shown in Figure 6, the flexible connecting strip 120 in the movable off-grid photovoltaic power generation system A telescoping rod 14 is also provided to support the flexible connecting strip 120 to indirectly support the photovoltaic module 121 and the strop 160. Specifically, the telescopic rod 14 The upper end portion abuts the flexible connecting strip to further support the flexible connecting strip from below, while the cable 160 supports the unfolded flexible connecting strip from above, making the unfolded flexible connecting strip more stable.

When the flexible connecting belt is in the second state extending outside the casing, the flexible connecting belt is supported by the telescopic rod to avoid collapse of the flexible connecting belt, and the photoelectric conversion efficiency of the photovoltaic module on the flexible connecting belt is improved.

 Optionally, the end portion 101 is further provided with a pusher 102, and the position of the pusher 102 corresponds to the movable pulley 11 when the tractor 130 When moving in the direction of the inside of the casing 110, the pusher pushes the movable pulley 12 hanging on the strop 160 to facilitate the folding of the flexible connecting belt 120.

 In an alternative embodiment based on the above examples, the tractor 130 may employ either automatic or manual traction. When the tractor 130 When the automatic traction is adopted, the tractor 130 receives the control signal and moves outside the casing 110 to realize the extension of the flexible connecting belt 120; or, the tractor 130 receives the control signal to the casing 110. The inner movement moves to close the flexible connecting belt 120. When the flexible connecting belt 120 is closed, the tractor 130 returns to the charging slot disposed inside the casing 110 for charging.

 In an alternative embodiment based on the above embodiments, the flexible tie strip 120 uses a flexible high strength lightweight woven material, such as a weather resistant cloth.

Since the flexible connecting belt uses a flexible high-strength lightweight woven material, the photovoltaic module is fixed on the flexible connecting belt, so that the photovoltaic module can be gathered and deployed, and the volume is small, light and light, and easy to carry.

In an alternative embodiment based on the above embodiment, the photovoltaic component is arranged in a conventional string, DC output; or, in order to overcome the string length limitation, the photovoltaic component is combined with the AC inverter, and the PV component string is in an AC output mode. .

 The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims (21)

A movable off-grid photovoltaic power generation system, characterized in that the system comprises: Box a flexible connecting belt, disposed on the box body, having a first state gathered in the box body and a second state of being unfolded, wherein the flexible connecting belt is fixed with a plurality of photovoltaic modules; a tractor that is movable for driving the flexible connecting strap to switch between the first state and the second state; The winding assembly has a strop wound thereon, and in the second state, the zip line is driven by the tractor to be released to support the unfolded flexible connecting belt. The system of claim 1 wherein said tractor is located within said casing during said first condition. The system of claim 2 wherein said housing is provided with a chute that cooperates with said strop. A movable off-grid photovoltaic power generation system, characterized in that the system comprises a semi-open box, a flexible connecting belt disposed inside the box, a tractor disposed inside the box, and a setting a winding assembly outside the casing; Wherein, the flexible connecting belt is fixed with a plurality of photovoltaic modules; The tank is provided with a chute and a strop for the flexible connecting belt to move; The zip line is connected to the winding assembly; The flexible connecting belt is switched between a first state gathered in the casing and a second state in which it is unfolded by the movement of the sliding groove and the strop according to a moving direction of the tractor. According to any of claims 1-4 The system is characterized in that, in the first state, the flexible connecting strap is suspended inside the casing by a plurality of support rods. According to claim 5 The system is characterized in that both ends of the support rod are provided with a movable pulley, and the movable pulley is hung on the strop and placed in the sliding slot. The system of claim 6 wherein said moving pulley has a radius greater than a thickness of said photovoltaic module. The system of claim 5 wherein said flexible connecting strip is provided with a hole through which said support rod is threaded. According to claim 5 The system is characterized in that adjacent photovoltaic modules on the flexible connecting strip are spaced apart by a predetermined distance, the predetermined distance being greater than a dimension of the support rod along the length of the flexible connecting strip. The system of claim 9 wherein said predetermined distance is greater than a diameter of said support rod. According to claims 1-4 A system according to any one of the preceding claims, wherein the casing comprises a body and an end detachable from the body, the end being coupled to the tractor for movement with the tractor, the flexible connection The strap is coupled to the end. The system of claim 11 wherein said strop is coupled to said end. According to claim 11 The system is characterized in that, in the first state, the flexible connecting belt is suspended inside the box by a plurality of support rods provided with movable pulleys at both ends; the movable pulley is hung on the zip line And placed in the sliding slot; a pusher is arranged at a position corresponding to the movable pulley on the end. A system according to any one of claims 1 to 4, wherein the strop is connected to the winding assembly by a fixed pulley. According to claim 14 The system is characterized in that the system further comprises a drive motor for driving the winding assembly to release or retract the strop. A system according to any one of claims 1 to 4, wherein the winding assembly is provided outside the casing. According to claims 1-4 A system according to any of the preceding claims, further comprising a plurality of telescoping rods for supporting said flexible connecting strips in said second state. The system of claim 17 wherein said upper end of said telescoping rod abuts said flexible connecting strip. According to any of claims 1-4 The system is characterized in that the system further comprises a battery assembly, a circuit control box and an inverter assembly. According to any of claims 1-4 The system is characterized in that the photovoltaic modules are evenly distributed on the front side of the flexible connecting strip. A system according to any one of claims 1 - 4, wherein the flexible connecting strip is made of a woven material.