CN213521787U - Solar cell panel of formula of curling around axle - Google Patents

Abstract

The utility model relates to a spacecraft technical field specifically is a solar cell panel around axle convolution formula, it includes: the shape is the center pin of cylinder, and two solar substrate that expand the back shape and be the rectangle, two solar substrate is averagely divided into two parts, connects through the spring part between each substrate, solar substrate is close to center pin one side and is connected around the elastic tension string that center pin curved surface is gone up and the symmetric distribution, install the solar cell who arranges according to certain array on the solar substrate, solar substrate top correspondence is installed and is carried out the lens that supports through interior elastic support piece, well elastic support piece, outer elastic support piece, and solar substrate middle part has the spring part that evenly divides into two parts with whole, the spring part is elastic material, the utility model discloses a cooperation of elastic tension string, base plate and center pin can be through the expansion efficiency of two-way expansion in order to increase solar substrate.

Description

Solar cell panel of formula of curling around axle

Technical Field

The utility model relates to a spacecraft technical field, concretely relates to solar cell panel around axle convolution formula.

Background

Solar arrays relate to structures attached to certain spacecraft vehicles or satellites to power the spacecraft, solar arrays take up little space to store for easy shipping and launching, and photovoltaic solar panels can be deployed in space to convert solar energy into kinetic energy needed to operate the spacecraft.

Power systems for space applications face a number of design constraints, including criteria to minimize weight, minimize storage volume, maximize life-to-end-of-life performance, and minimize cost.

In the prior art, a rigid or multi-hinge structure is adopted, for example, U.S. patent publication No. US5496414 adopts an elastomer support structure and an integral structure of multi-hinge to realize the storage and the unfolding. The space occupation is large when the whole storage is caused, the weight is large, the solar cell efficiency is lower, and the spacecraft or the satellite can normally work only through the increase of the number.

To allow for further reduction in the weight and storage volume of the deployable solar cell array, the solar cells may be mounted to a lightweight flexible substrate or blanket rather than a large heavy rigid honeycomb panel. Various flexible solar cell cover substrates have been used, such as those made of fiberglass mesh or thin polymer sheets, to which numerous crystalline solar cells are bonded.

Flexible Photovoltaic (PV) blanket solar cell arrays are typically limited to crystalline solar cells packaged on long continuous rolls or pleated and folded stacks that are connected and unfolded by a separate deployment arm actuator, hub structure or other deployable structure requiring an external motor power supply.

Solar cells are by far the most expensive component of a solar cell array. Since both system cost and quality increase directly with the number of solar cells used, there is considerable economic incentive to reduce the number of solar cells carried by the spacecraft. To reduce the cost of the solar cell array and more effectively protect the solar cell array from radiation exposure, reflective or refractive concentrator elements may be used to reduce the number of cells.

By using relatively inexpensive Fresnel lens optics to collect and focus sunlight onto smaller solar cells, the cost and weight of the cells for an equivalently powered solar cell array is significantly reduced. By using very efficient cells, the required array area is minimized, reducing the overall system weight.

The lens assemblies and lens banks are thin lightweight rollable curvilinear elements, flat or arched, made of flexible DC93500 silicone elastomer material, with a protective front side coating, mounted directly above the solar cell bank and positioned precisely so that it captures incident solar radiation (light) and refracts it onto the solar cell row directly below to increase the illumination of the cells.

For example, US patent No. US9450131 employs a large number of flexible and elastic structures to achieve the overall curling and storage, but the curling in one direction results in a long lens and substrate length, which is not favorable for unfolding and storage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a have lower quality, more compact transmission storage volume, flexible compact is around flexible solar cell panel of axle convolution formula.

A solar panel that is rolled around a shaft, comprising: the solar cell array comprises a central shaft in the shape of a cylinder, two solar substrates in the shape of a rectangle after being unfolded, wherein the two solar substrates are evenly divided into two parts, the substrates are connected through a spring part, one side of each solar substrate, which is close to the central shaft, is connected with elastic tension strings which surround a curved surface of the central shaft and are symmetrically distributed, solar cells which are distributed according to a certain array are arranged on the solar substrates, and lenses which are supported through an inner elastic supporting piece, a middle elastic supporting piece and an outer elastic supporting piece are correspondingly arranged above the solar substrates;

the solar substrate comprises a solar substrate and a spring piece, wherein the middle part of the solar substrate is provided with the spring piece which evenly divides the whole body into two parts, the spring piece is made of elastic materials, the spring piece is corrugated and is in a tightening state in a normal state, and when the solar substrate is stretched, the spring piece is stretched and the upper surface of the spring piece and the upper surface of the solar substrate are in the same plane;

the central shaft is connected with the solar substrate through elastic tension strings, the number of the elastic tension strings is at least two, the solar substrate is stably positioned on two sides of the central shaft when being unfolded, one side of the solar substrate, provided with the solar cell, is opposite to the direct sunlight direction, the length of the central shaft is the same as the width of the solar substrate, and the elastic tension strings on the left side of the central shaft are longer than the elastic tension strings on the right side of the central shaft;

after the left solar substrate is integrally turned over, the distances between the solar substrates on the two sides of the central shaft and the central shaft are the same, the inner elastic supporting piece is fixed on one side, close to the central shaft, of the solar substrate through the upper fixing piece of the inner elastic supporting piece, and the middle elastic supporting piece is fixed in the middle of the solar substrate, namely on the two sides of the spring piece, through the upper fixing piece of the middle elastic supporting piece;

the outer elastic supporting piece is fixed on one side, far away from the central shaft, of the solar substrate through the upper fixing piece, the inner elastic supporting piece, the middle elastic supporting piece and the outer elastic supporting piece are made of elastic materials, the upper end of the inner elastic supporting piece, the middle elastic supporting piece and the outer elastic supporting piece are arched in a normal state, have the same radian as the curved surface of the central shaft and are fixed with the lens to control the shape of the lens, and the solar substrate and the solar cell are made of flexible materials.

The utility model has the advantages as follows:

1. the utility model discloses for rigidity or many hinge structure's solar cell panel, adopted a large amount of flexibility and elastic construction, through the cooperation of center pin, elastic tension string, elastic support piece, spring part and base plate, make lens and base plate can laminate to realize that solar cell panel is whole to curl and accomodate, reduced the quality, make the storage volume littleer.

2. The utility model discloses a cooperation of elastic tension string, base plate and central axle can be through two-way expansion in order to increase the expansion efficiency of solar substrate.

Drawings

Fig. 1 is the utility model provides a pair of the whole sketch that expandes of solar cell panel of formula of curling around the axle.

Fig. 2 is the utility model provides a pair of take in first stage schematic diagram around solar cell panel of axle convolution formula.

Fig. 3 is a schematic diagram of a second stage of the solar cell panel that is rolled around a shaft provided by the present invention.

Fig. 4 is the utility model provides a pair of take in third stage schematic diagram around solar cell panel of axle convolution formula.

Fig. 5 is the utility model provides a pair of take in the end schematic diagram entirely around the solar cell panel of axle convolution formula.

Fig. 6 is the utility model provides a pair of when wholly expandeing solar cell panel of formula of curling around axle solar substrate state sketch map.

Fig. 7 is the utility model provides a pair of when taking in solar cell panel whole of formula of curling around axle solar substrate state schematic diagram.

Fig. 8 is a schematic view of the outer elastic supporting member in the unfolded state of the solar cell panel wound around the shaft according to the present invention.

Fig. 9 is a schematic view of the outer elastic supporting member when the second stage is stored in the solar cell panel wound around the shaft according to the present invention.

Fig. 10 is a schematic view of the outer elastic supporting member when the solar cell panel is completely stored around the shaft.

Fig. 11 is a schematic view of the elastic support member when the solar cell panel is integrally unfolded around the shaft.

Fig. 12 is a schematic view of the elastic support member in the second stage of the solar cell panel wound around the shaft according to the present invention.

Fig. 13 is the utility model provides a pair of take in middle elastic support piece sketch map when finishing around the solar cell panel of axle convolution formula.

Fig. 14 is a schematic view of the inner elastic supporting member when the solar cell panel is integrally unfolded around the shaft.

Fig. 15 is a schematic view of the inner elastic supporting member when the second stage is stored in the solar cell panel wound around the shaft according to the present invention.

Fig. 16 is the utility model provides a pair of take in interior elastic support piece sketch map when finishing around the solar cell panel of axle convolution formula.

Description of the drawings: 100. a central shaft; 200. an elastic tension string; 300. a lens; 400. a solar substrate; 410. a solar cell; 420. a spring member; 510. an inner resilient support member; 520. a middle elastic support; 530. an outer resilient support member; 540. and a fixing member.

Detailed Description

The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are easily implemented by those having ordinary skill in the art to which the present invention pertains. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In addition, for the purpose of more clearly describing the present invention, parts not connected with the present invention will be omitted from the drawings.

Referring to fig. 1-5, a solar cell panel of the roll-to-roll type includes: the solar cell module comprises a central shaft 100 in the shape of a cylinder, two solar substrates 400 in the shape of a rectangle after being unfolded, wherein the two solar substrates 400 are evenly divided into two parts, the substrates are connected through a spring part 420, one side of each solar substrate 400, which is close to the central shaft 100, is connected with elastic tension strings 200 which surround the curved surface of the central shaft 100 and are symmetrically distributed, solar cells 410 which are arranged according to a certain array are installed on the solar substrates 400, and lenses 300 which are supported through an inner elastic support part 510, a middle elastic support part 520 and an outer elastic support part 530 are correspondingly installed above the solar substrates 400;

referring to fig. 6 and 7, the middle of the solar substrate 400 is provided with a spring member 420 which equally divides the whole body into two parts, and the spring member 420 is made of an elastic material;

the spring member 420 is corrugated and in a tightened state in a normal state;

when the solar substrate 400 is stretched, the upper surface of the spring member 420 is straightened and is in the same plane as the upper surface of the solar substrate 400;

referring to fig. 1 to 16, the central shaft 100 and the solar substrate 400 are connected by at least two elastic tension strings 200, so that the solar substrate 400 is stably positioned at two sides of the central shaft 100 when being unfolded, and the solar substrate 400 has one side of the solar cell 410 facing the direct sunlight direction;

the length of the central shaft 100 is the same as the width of the solar substrate 400;

the elastic tension string 200 on the left side of the central shaft 100 is longer than the elastic tension string 200 on the right side of the central shaft 100;

after the left solar substrate 400 is integrally turned over, the distances between the solar substrates 400 on the two sides of the central axis 100 and the central axis 100 are the same;

the inner elastic supporting member 510 is fixed on one side of the solar energy substrate 400 close to the central axis 100 by an upper fixing member 540;

the middle elastic supporting member 520 is fixed at the middle position of the solar substrate 400, namely, at both sides of the spring member 420, by the upper fixing member 540;

the outer elastic supporting member 530 is fixed on the side of the solar substrate 400 away from the central axis 100 by an upper fixing member 540;

the inner elastic support 510, the middle elastic support 520 and the outer elastic support 530 are made of elastic materials, and the upper ends thereof are arched in a normal state, have the same radian as the curved surface of the central shaft 100, and are fixed with the lens 300 to control the shape of the lens 300;

the solar substrate 400 and the solar cell 410 are both made of flexible materials.

The working principle is as follows:

when the solar substrate 500 is in the unfolded state: the elastic tension string 200 and the spring element 420 are in a normal state, the solar substrates 400 are symmetrically distributed on two sides of the curved surface of the central shaft 100, one surface of each solar cell 410 of the solar substrate 400 is opposite to the direct solar radiation direction, the spring element 420 is in a tightened state, the upper end of the outer elastic support 530 inclines outwards, the upper end of the inner elastic support 510 inclines inwards, and the upper end of the middle elastic support 520 inclines outwards and the inclination amplitude is smaller than that of the outer elastic support 530;

the solar substrate 400 starts to be stored as a whole: the solar substrate 400 on the left side of the central shaft 100 is turned over by 180 degrees by external force, and then the solar substrates 400 on the two sides of the central shaft 100 are stretched towards the side far away from the central shaft 100, so that the spring member 420 is in a stretched state, the lower ends of the inner elastic support member 510, the middle elastic support member 520 and the outer elastic support member 530 are attached to the solar substrate 400, so that the lower end of the lens 300 is also attached to the solar substrate 400, the upper ends of the respective arched shapes form the same angle with the solar substrate 400, then the solar substrate 400 is rotatably accommodated around the central axis 100 in the direction facing the side of the solar substrate 400 having the lens 300, and then one side of the inner elastic support 510, the middle elastic support 520, the outer elastic support 530 and the lens 300 fixed thereto is attached to the solar substrate 400 and the other side is attached to the central axis 100 until the solar substrate 400 is completely accommodated and is packaged.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (4)

1. A solar panel that is rolled around a shaft, comprising: center pin (100), solar substrate (400), spring part (420), elastic tension string (200), solar cell (410), its characterized in that: the solar cell module is characterized in that the central shaft (100) is in a cylindrical structure, the two solar substrates (400) are in a rectangular structure in an unfolded shape, the two solar substrates (400) are evenly divided into two parts, the solar substrates (400) are connected with each other through spring pieces (420), one side, close to the central shaft (100), of each solar substrate (400) is connected with the curved surface of the central shaft (100) through an elastic tension string (200), solar cells (410) are arrayed on the solar substrates (400), lenses (300) are installed above the solar substrates (400), the solar substrates (400) are connected with the lenses (300) through inner elastic supporting pieces (510), middle elastic supporting pieces (520) and outer elastic supporting pieces (530), the spring pieces (420) which evenly divide the whole body into two parts are arranged in the middle of the solar substrates (400), the spring pieces (420) are straightened, and the upper surfaces of the spring pieces are in the same plane with the upper surface of the solar substrates, the central shaft (100) and the solar substrate (400) are connected through elastic tension strings (200), the number of the elastic tension strings (200) is at least two, the length of the central shaft (100) is the same as the width of the solar substrate (400), the length of the elastic tension string (200) on the left side of the central shaft (100) is larger than that of the elastic tension string (200) on the right side, the inner elastic supporting piece (510) is installed on one side, close to the central shaft (100), of the solar substrate (400) through a fixing piece (540), the middle elastic supporting piece (520) is installed at the middle position of the solar substrate (400) through the fixing piece (540), the outer elastic supporting piece (530) is installed on one side, far away from the central shaft (100), of the solar substrate (400) through the fixing piece (540), the inner elastic supporting piece (510), the outer elastic support (530) is made of an elastic material and is fixed with the lens (300) to control the shape of the lens (300).

2. A convoluted solar panel in accordance with claim 1, wherein: the spring element (420) is made of elastic material, and the spring element (420) is corrugated and in a tightened state in a normal state.

3. A convoluted solar panel in accordance with claim 1, wherein: the upper ends of the inner elastic support (510), the middle elastic support (520) and the outer elastic support (530) are all arched and have the same radian with the curved surface of the central shaft (100) in a normal state.

4. A convoluted solar panel in accordance with claim 1, wherein: the solar substrate (400) and the solar cell (410) are both made of flexible materials.

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