A uniform load device for a spatially repeatable deployment and stowage of a fan-shaped solar wing

Abstract

The application discloses a kind of space repeatable fan-shaped solar cell wing uniform load devices, and uniform load device is composed of a series of spring tensioning units in series, and each group of spring tensioning units includes tensioning spring, lead seal, steel wire rope, mounting sheet and the like.The array surface is divided into two parts after fan-shaped solar cell wing is unfolded Wing surface combination, and the uniform load device connects two parts Wing surface combination, and can provide sufficient array tension for the array surface in unfolded state.Meanwhile, the uniform load device can adaptively change for the fan-shaped wing in the state of being folded, and will not interfere with the whole wing.The spring group in the uniform load device realizes the purpose of providing array tension in unfolded state and adaptively changing with the state of fan-shaped wing in the state of being folded.

Description

Technical Field

[0001] This invention belongs to the technical field of solar array devices, and particularly relates to a load-sharing device for a space-retractable fan-shaped solar array. Background Technology

[0002] Fan-shaped solar panels utilize flexible solar cells and are used in deep space exploration, planetary exploration, and other fields due to their high power-to-weight ratio. Currently, the most widely used fan-shaped solar panels are those that can be deployed once. The load-sharing device provides tension to the wing surfaces after the entire wing is deployed, with springs stretched. For retractable fan-shaped solar panels, there is currently no load-sharing device that can adapt to both deployed and retracted states.

[0003] Currently, one-time deployed fan-shaped solar array load-sharing devices suffer from interference between the deployment and retraction process and the frame struts. Therefore, there is an urgent need for a space-based fan-shaped solar array load-sharing device that can accommodate changes in deployment and retraction states. Summary of the Invention

[0004] The purpose of this invention is to provide a load-sharing device for a space-retractable fan-shaped solar array, which enables repeated deployment and retrieval without interfering with the structure of the solar array itself.

[0005] To solve the above problems, the technical solution of the present invention is as follows:

[0006] A load-sharing device for a space-retractable, reusable fan-shaped solar array, comprising:

[0007] A tensioning assembly, which is fixed to a set of opposing skeletal struts of the fan-shaped solar panel;

[0008] During the deployment of the fan-shaped solar array, the tensioning component is subjected to the tension of the skeleton strut along the deployment direction of the fan-shaped solar array, gradually extending and providing a uniform array tension force to the surface of the fan-shaped solar array.

[0009] When the fan-shaped solar array is in the retracted state, the opposing frame struts are brought together, and the tensioning component is located above the frame struts, applying a tension force to the frame struts.

[0010] According to one embodiment of the present invention, the tensioning assembly includes an elastic element, a steel wire rope, and a fixing element;

[0011] A steel wire rope is threaded through each of the upper and lower ends of the elastic element. The two ends of the steel wire rope are fixed to a set of opposing skeleton support rods through the fixing member, and the fixing positions are corresponding.

[0012] According to one embodiment of the present invention, the load-sharing device includes a plurality of the aforementioned tension components, wherein each of the tension components is connected in series.

[0013] According to one embodiment of the present invention, on the same side of the frame strut, adjacent tension components share a single fixing member.

[0014] According to one embodiment of the present invention, the wire rope passes through a through hole in the fixing member and is secured by a lead seal.

[0015] According to an embodiment of the present invention, in the deployed state of the fan-shaped solar array, the elastic element is subjected to a tensile force F. n for

[0016]

[0017] Where θ is the angle between the wire rope and the tension force F1, and F1 is the tension force generated by the spring on the plane.

[0018] According to one embodiment of the present invention, the elastic element is a tension spring.

[0019] Because the present invention adopts the above technical solution, it has the following advantages and positive effects compared with the prior art:

[0020] In one embodiment of the present invention, a load-sharing device for a spatially retractable fan-shaped solar array features a tensioning component mounted above a frame support rod. The spring remains above the frame support rod during both the deployment and retraction of the fan-shaped solar array, eliminating interference with the solar cell structure itself. Simultaneously, in the deployed state, the spring tension is transmitted to the array surface via the fixing components and the frame support rod, generating tension on the array surface. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the deployment state of the load-sharing device for the spatially retractable fan-shaped solar array in one embodiment of the present invention.

[0022] Figure 2 This is a front view of the load-sharing device of the spatially retractable fan-shaped solar array in an embodiment of the present invention, in its deployed state.

[0023] Figure 3 This is a schematic diagram of the retracted state of the load-sharing device for a spatially retractable fan-shaped solar array according to an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1: Elastic component; 2: Lead seal; 3: Steel wire rope; 4: Fixing component; 5: Frame support rod; 6: Solar array. Detailed Implementation

[0026] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed account of the load-sharing device for a space-retractable, retractable fan-shaped solar array proposed in this invention. The advantages and features of this invention will become clearer from the following description and claims.

[0027] For retractable fan-shaped solar arrays, the load distribution device needs to have two functions. First, the load distribution device must ensure that the wing surface provides a relatively uniform tension force when deployed; second, the load distribution device must not interfere with any part of the solar array during the entire deployment and retraction process. Compared to the load distribution device for a single-deployment fan-shaped solar array, the springs in the load distribution device for a retractable fan-shaped solar array need to still have a certain tensile force when retracted, and a new layout should be adopted to adapt to the requirements of retractable fan-shaped solar arrays.

[0028] This embodiment provides a load-sharing device for a spatially retractable fan-shaped solar array. It connects the two wing surfaces of the fan-shaped solar array after deployment and can provide sufficient tension force to the deployed surface. Simultaneously, it adapts to the retracted fan-shaped solar array without interfering with the overall wing structure.

[0029] The space-based load-sharing device for the retractable fan-shaped solar array includes a tensioning assembly fixed to a set of opposing skeletal struts on the fan-shaped solar array.

[0030] During the deployment of the fan-shaped solar array, the tensioning component is subjected to the tension of the skeleton struts along the deployment direction of the fan-shaped solar array, gradually extending and providing uniform array tension to the fan-shaped solar array.

[0031] When the fan-shaped solar array is in the retracted state, the opposing frame struts come together, and the tensioning component is located above the frame struts, applying a tension force to the frame struts.

[0032] For details, please refer to Figure 1 The tensioning components consist of multiple units, each connected in series on the frame strut 5, providing uniform array tension for the fan-shaped solar array in the deployed state.

[0033] Each tensioning component includes an elastic element 1, a steel wire rope 3, and a fixing element 4. A steel wire rope 3 is threaded through each of the upper and lower ends of the elastic element 1. The two ends of the steel wire rope 3 are fixed to a set of opposing frame support rods 5 via the fixing elements 4, and the fixing positions are corresponding. The lower part of the frame support rods 5 is connected to the solar array surface 6.

[0034] When the fan-shaped solar array is deployed, the elastic element 1 experiences a tensile force F. n for

[0035]

[0036] Where θ is the angle between the wire rope and the tension force F1, and F1 is the tension force generated by the spring on the plane.

[0037] Please refer to Figure 2The upper part of the frame strut 5 is connected to the tensioning component, and the lower part of the frame strut 5 is connected to the solar array 6. The tensioning component is stretched to different degrees as the fan-shaped solar array unfolds or retracts.

[0038] Please refer to Figure 3 When the fan-shaped solar array is retracted, the tensioning component is located above the frame support rod 5. The spring remains in a stretched state whether the entire wing is extended or retracted, and the steel wire rope 3 will not sink. Therefore, the load-sharing device will not interfere with the solar array during the extension and retraction process.

[0039] In practical applications, the wire rope 3 passes through the through hole on the fixing member 4 and is secured by the lead seal 2. On the same side of the frame support rod, adjacent tension components share a fixing member. That is, the through hole on one fixing member 4 connects two sections of wire rope 3 simultaneously. The elastic element 1 is a tension spring.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A load-sharing device for a spatially retractable, fan-shaped solar array, characterized in that, include: A tensioning assembly, which is fixed to a set of opposing skeletal struts of the fan-shaped solar panel; During the deployment of the fan-shaped solar array, the tensioning component is subjected to the tension of the skeleton strut along the deployment direction of the fan-shaped solar array, gradually extending and providing a uniform array tension force to the surface of the fan-shaped solar array. When the fan-shaped solar array is in the retracted state, the opposing frame struts are brought together, and the tensioning component is located above the frame struts and applies a tension force to the frame struts. The tensioning assembly includes an elastic element, a steel wire rope, and a fixing element; A steel wire rope is threaded through each of the upper and lower ends of the elastic element. The two ends of the steel wire rope are fixed to a set of opposing skeleton support rods through the fixing member, and the fixing positions are corresponding.

2. The load-sharing device for the space-retractable fan-shaped solar array as described in claim 1, characterized in that, It includes multiple stretching components, each of which is connected in series.

3. The load-sharing device for the space-retractable fan-shaped solar array as described in claim 2, characterized in that, On the same side of the frame strut, adjacent tension components share a single fastener.

4. The load-sharing device for the space-retractable and retractable fan-shaped solar array as described in claim 1, characterized in that, The steel wire rope passes through the through hole in the fixing member and is secured with a lead seal.

5. The load-sharing device for the space-retractable and retractable fan-shaped solar array as described in claim 1, characterized in that, When the fan-shaped solar array is deployed, the elastic element experiences a tensile force F. n for Where θ is the angle between the wire rope and the tension force F1, and F1 is the tension force generated by the elastic element on the face.

6. The load-sharing device for a space-retractable, retractable fan-shaped solar array as described in claim 1, characterized in that, The elastic element is a tension spring.

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