A rope-driven deployment mechanism for a two-dimensional foldable fan-shaped solar cell wing

Abstract

The application relates to a rope driving unfolding mechanism for a two-dimensional folding and unfolding fan-shaped solar cell wing and belongs to the technical field of fan-shaped solar cell wings; the rope driving unfolding mechanism comprises a motor driving assembly, a take-up wheel, a driving rope, a pulley assembly, a first rope guide, a second rope guide, a third rope guide, a rope limiting block and a rope tensioning assembly; the application realizes synchronous rotation and unfolding of an external first fixed box plate and an external first movable box plate in a vertical plane until the external first fixed box plate is horizontally connected with an external second fixed box plate and the external first movable box plate is horizontally connected with an external second movable box plate; the external first movable box plate and the external second movable box plate are synchronously horizontally rotated by 360 DEG around an external center hinge mechanism; the two-dimensional folding and unfolding fan-shaped solar cell wing is unfolded in two dimensions through one set of the unfolding mechanism, the unfolding mechanism is lightened, the complexity of the unfolding mechanism is reduced, and the unfolding reliability is improved.

Description

Technical Field

[0001] This invention belongs to the field of fan-shaped solar cell wing technology, and relates to a rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing. Background Technology

[0002] As the deployed size of spacecraft solar arrays continues to increase, the fold-out ratio and retraction ratio of solar arrays need to be further improved under the constraint of the launch vehicle fairing size. Fan-shaped solar panels have evolved into two-dimensional fold-out configurations, enabling them to achieve a smaller retracted length for the same deployed area or a larger deployed area under the same retracted length constraint. Current technologies require two deployment mechanisms to realize the deployment function of the two-dimensional fold-out fan-shaped solar panels in two folding dimensions. This makes it impossible to achieve a lightweight design of the deployment mechanism, increases its complexity, and reduces deployment reliability. Summary of the Invention

[0003] The technical problem solved by this invention is to overcome the shortcomings of the prior art and propose a rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing. This mechanism enables the deployment of the two-dimensional folding fan-shaped solar cell wing in two dimensions using a single deployment mechanism, thereby achieving lightweight deployment, reducing the complexity of the deployment mechanism, and improving deployment reliability.

[0004] The solution of the present invention is: A rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing includes a motor drive assembly, a take-up reel, a drive rope, five pulley assemblies, two first rope guides, two second rope guides, two third rope guides, two rope limiting blocks, a rope tensioning assembly, an external first fixed box plate, an external second fixed box plate, an external first moving box plate, an external second moving box plate, two sets of external high-rigidity inter-plate hinges, and an external central hinge mechanism. The external second fixed box plate and the external second moving box plate are vertically opposite each other; the external first fixed box plate and the external first moving box plate are vertically opposite each other; the root of the external first fixed box plate and the head of the external second fixed box plate are connected by a set of external high-rigidity inter-plate hinges, and the external first fixed box plate is located above the external second fixed box plate; the root of the external first moving box plate and the head of the external second moving box plate are connected by another set of external high-rigidity inter-plate hinges, and the external first moving box plate is located above the external second moving box plate; the external first fixed box plate and the external first moving box plate are connected by a set of external central hinge mechanisms; the first set of external high-rigidity inter-plate hinges and the second set of external high-rigidity inter-plate hinges are coaxial, and the two sets of external high-rigidity inter-plate hinges and the one set of external central hinge mechanisms form two rotational degrees of freedom; The motor drive assembly is mounted on the outer second fixed box plate; the output end of the motor drive assembly is connected to the take-up reel; two pulley assemblies are mounted on the outer second fixed box plate; the other three pulley assemblies are respectively mounted on the outer first fixed box plate, the outer first moving box plate, and the outer second moving box plate; two first rope guides are mounted on the outer central hinge mechanism; two second rope guides are mounted on two sets of outer high-rigidity plate hinges; one third rope guide is mounted on the outer second fixed box plate; the other third rope guide is mounted on the outer second moving box plate. Two rope limiting blocks are installed on the outer second motion box plate; the rope tensioning assembly is installed on the outer second motion box plate; one end of the drive rope is connected to the take-up reel, and the other end of the drive rope is connected to the rope tensioning assembly after passing through the pulley assembly, the first rope guide, the second rope guide, the third rope guide, and the rope limiting blocks.

[0005] In the above-mentioned rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing, in the retracted state, the drive rope, after being led out from the take-up reel, is tangent to two pulley assemblies mounted on one side of the second external fixed box at points A and B, tangent to a pulley assembly mounted on one side of the first external fixed box at point C, and tangent to a first rope guide on one side of the first external fixed box at point D; the line AB intersects the line CD at point P; the center Q of the second rope guide is located on the angle bisector of ∠APD; the two ends of the drive rope are tangent to the second rope guide at points M and N, satisfying ∠MQN < 180° - ∠APD.

[0006] In the above-mentioned rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing, in the retracted state, the drive rope is tangent to the first rope guide on one side of the external first fixed box plate at points D and E, and tangent to the first rope guide on one side of the external first moving box plate at points F and G; the centers L and K of the two first rope guides are located on the two rotation axes of the external central hinge mechanism, respectively; satisfying ∠DLE=∠FKG=90°.

[0007] In the aforementioned rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing, the effective guiding angle of the first rope guide member to the driving rope is not less than 90°; the effective guiding angle of the second rope guide member to the driving rope is not less than ∠MQN.

[0008] In the above-mentioned rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing, the rope-driven deployment mechanism realizes the two-dimensional deployment of the folding fan-shaped solar cell wing, namely the first-dimensional deployment and the second-dimensional deployment. The first dimension is expanded as follows: The first external fixed box panel and the first external moving box panel rotate and unfold synchronously in the vertical plane until the first external fixed box panel is horizontally aligned with the second external fixed box panel and the first external moving box panel is horizontally aligned with the second external moving box panel. Second dimension expansion: The first and second fixed outer boxes remain fixed, while the first and second moving outer boxes rotate 360° horizontally around the external central hinge mechanism.

[0009] In the aforementioned rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing, the first-dimensional deployment process is as follows: The motor drive assembly drives the electric drive take-up reel to rotate, winding the drive rope around the reel until the limit pin on the drive rope contacts the rope limit block; the drive rope provides the unfolding torque to the two sets of external high-rigidity plate hinges through the second rope guide, and unfolds and locks the two sets of external high-rigidity plate hinges; thus realizing the synchronous rotation and unfolding of the external first fixed box plate and the external first moving box plate until the external first fixed box plate is horizontally aligned with the external second fixed box plate and locked by one set of external high-rigidity plate hinges, and the external first moving box plate is horizontally aligned with the external second moving box plate and locked by another set of external high-rigidity plate hinges.

[0010] In the above-mentioned rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing, the driving rope maintains a certain tension during its movement under the action of the planar spiral spring of the rope tensioning assembly, preventing the driving rope from coming out of the rope groove of the first rope guide or the second rope guide.

[0011] In the above-mentioned rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing, the second-dimensional deployment process is divided into two stages: the first external motion box and the second external motion box rotate horizontally around the external central hinge mechanism at 0°-180°, and the first external motion box and the second external motion box rotate horizontally around the external central hinge mechanism at 180°-360°.

[0012] In the aforementioned rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing, the specific process of the outer first motion box plate and the outer second motion box plate synchronously rotating horizontally from 0° to 180° around the outer central hinge mechanism is as follows: The motor drive assembly powers the take-up reel, which winds the drive rope onto the take-up reel. The drive rope provides driving torque to the first and second external motion boxes via the first rope guide. The first and second external motion boxes rotate around the external central hinge mechanism, achieving a rotation of 0°-180° around the external central hinge mechanism.

[0013] In the aforementioned rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing, the specific process of the outer first motion box plate and the outer second motion box plate synchronously rotating horizontally 180°-360° around the outer central hinge mechanism is as follows: When the first and second external motion boxes rotate 180° around the external central hinge mechanism, the drive rope disengages from the first rope guide. The drive rope changes its bending angle through two third rope guides and continues to provide driving torque to the first and second external motion boxes until they rotate 360° around the external central hinge mechanism. At this point, the rope-driven deployment mechanism has deployed the two-dimensional folding fan-shaped solar cell wing into place.

[0014] The advantages of this invention compared to the prior art are: (1) The present invention uses one set of deployment mechanism to realize the deployment of two-dimensional folding fan-shaped solar cell wings in two dimensions, thereby achieving lightweight deployment mechanism, reducing the complexity of deployment mechanism, and effectively improving deployment reliability; (2) The present invention unfolds the entire folding fan-shaped solar cell wing in two stages: the first dimension unfolding: the outer first fixed box plate and the outer first moving box plate rotate and unfold synchronously in the vertical plane until the outer first fixed box plate and the outer second fixed box plate are horizontally connected and the outer first moving box plate and the outer second moving box plate are horizontally connected; the second dimension unfolding: the outer first fixed box plate and the outer second fixed box plate remain fixed, and the outer first moving box plate and the outer second moving box plate rotate horizontally 360° around the outer central hinge mechanism. It can achieve a smaller folding length under the same unfolding area or a larger unfolding area under the same folding length constraint. (3) The present invention divides the second dimension unfolding process into two stages: the first external motion box and the second external motion box rotate horizontally around the external central hinge mechanism at 0°-180° and the second external motion box rotate horizontally around the external central hinge mechanism at 180°-360°. The drive unfolding mechanism is designed to switch the drive rope in different angle states, which further ensures the reliability of unfolding. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall rope-driven deployment mechanism of the present invention; Figure 2 This is a detailed view of the motor drive assembly and take-up reel of the present invention; Figure 3 This is a schematic diagram showing the positional relationship between the drive rope, pulley assembly, first rope guide, and second rope guide of the present invention. Figure 4This is a schematic diagram showing the drive rope of the present invention being tangent to the two first rope guides; Figure 5 This is a schematic diagram of the first dimension of the unfolded fan-shaped solar cell wing of the present invention; Figure 6 This is a schematic diagram of the first stage of the second-dimensional unfolding of the folding fan-shaped solar cell wing of the present invention; Figure 7 This is a schematic diagram of the second stage of the unfolding of the fan-shaped solar cell wing in the second dimension of the present invention. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments.

[0017] This invention provides a rope-driven deployment mechanism for a two-dimensional foldable fan-shaped solar cell wing. It uses one deployment mechanism to realize the deployment of the two-dimensional foldable fan-shaped solar cell wing in two dimensions, thereby achieving lightweight deployment mechanism, reducing the complexity of deployment mechanism, and effectively improving deployment reliability.

[0018] Rope-driven deployment mechanism for two-dimensional folding fan-shaped solar cell fins, such as Figure 1 , Figure 2As shown, it specifically includes a motor drive assembly 41, a take-up reel 42, a drive rope 43, five pulley assemblies 44, two first rope guides 45, two second rope guides 46, two third rope guides 47, two rope limiting blocks 48, a rope tensioning assembly 49, an external first fixed box plate 21, an external second fixed box plate 22, an external first moving box plate 31, an external second moving box plate 32, two sets of external high-rigidity inter-plate hinges 7, and an external central hinge mechanism 1. The external second fixed box plate 22 and the external second moving box plate 32 are vertically opposite each other; the external first fixed box plate 21 and the external first moving box plate 31 are vertically opposite each other; the root of the external first fixed box plate 21 and the head of the external second fixed box plate 22 are connected by a set of external high-rigidity inter-plate hinges 7, and the external first fixed box plate 21 is located above the external second fixed box plate 22; the root of the external first moving box plate 31 and the head of the external second moving box plate 32 are connected by another set of external high-rigidity inter-plate hinges 7, and the external first moving box plate 31 is located above the external second moving box plate 32; the external first fixed box plate 21 and the external first moving box plate 31 are connected by a set of external central hinge mechanism 1; the first set of external high-rigidity inter-plate hinges 7 and the second set of external high-rigidity inter-plate hinges 7 are coaxial, and the two sets of external high-rigidity inter-plate hinges 7 and the one set of external central hinge mechanism 1 form two rotational degrees of freedom. The motor drive assembly 41 is mounted on the external second fixed box plate 22; the output end of the motor drive assembly 41 is connected to the take-up reel 42; two pulley assemblies 44 are mounted on the external second fixed box plate 22; the other three pulley assemblies 44 are respectively mounted on the external first fixed box plate 21, the external first moving box plate 31, and the external second moving box plate 32; two first rope guides 45 are mounted on the external central hinge mechanism 1; two second rope guides 46 are mounted on two sets of external high-rigidity plate hinges 7; one third rope guide 47 is mounted on the external second fixed box plate 22; the other third rope guide 47 is mounted on the external second moving box plate 32. Two rope limiting blocks 48 are installed on the outer second motion box plate 32; a rope tensioning assembly 49 is installed on the outer second motion box plate 32; one end of the drive rope 43 is connected to the take-up reel 42, and the other end of the drive rope 43 is connected to the rope tensioning assembly 49 after passing through the pulley assembly 44, the first rope guide 45, the second rope guide 46, the third rope guide 47, and the rope limiting blocks 48.

[0019] like Figure 3As shown, in the retracted state, the drive rope 43, after being led out from the take-up reel 42, is tangent to two pulley assemblies 44 installed on one side of the external second fixed box plate 22 at points A and B, respectively, tangent to the pulley assembly 44 installed on one side of the external first fixed box plate 21 at point C, and tangent to the first rope guide 45 on one side of the external first fixed box plate 21 at point D; the line AB is set to intersect the line CD at point P; the center Q of the second rope guide 46 is located on the angle bisector of ∠APD; the two ends of the drive rope 43 are tangent to the second rope guide 46 at points M and N, respectively, satisfying ∠MQN<180°-∠APD.

[0020] like Figure 4 As shown, in the retracted state, the drive rope 43 is tangent to the first rope guide 45 on one side of the external first fixed box plate 21 at points D and E, and tangent to the first rope guide 45 on one side of the external first moving box plate 31 at points F and G; the center points L and K of the two first rope guides 45 are located on the two rotation axes of the external central hinge mechanism 1, respectively; satisfying ∠DLE=∠FKG=90°.

[0021] The present invention achieves an effective guiding angle of not less than 90° for the first rope guide member 45 to the drive rope 43; and an effective guiding angle of not less than ∠MQN for the second rope guide member 46 to the drive rope 43.

[0022] In this invention, the rope-driven deployment mechanism enables the folding fan-shaped solar cell wing to unfold in two dimensions, namely the first dimension and the second dimension.

[0023] The first dimension is expanded as follows: The first external fixed box plate 21 and the first external moving box plate 31 rotate and unfold synchronously in the vertical plane until the first external fixed box plate 21 and the second external fixed box plate 22 are horizontally aligned, and the first external moving box plate 31 and the second external moving box plate 32 are horizontally aligned.

[0024] Second dimension expansion: The first external fixed box plate 21 and the second external fixed box plate 22 remain fixed, while the first external moving box plate 31 and the second external moving box plate 32 rotate horizontally 360° around the external central hinge mechanism 1.

[0025] like Figure 5 As shown, the process of unfolding the first dimension is as follows: The motor drive assembly 41 drives the electric drive take-up reel 42 to rotate, winding the drive rope 43 onto the take-up reel 42 until the limiting pin on the drive rope 43 contacts the rope limiting block 48. The drive rope 43 provides an unfolding torque to the two sets of external high-rigidity inter-plate hinges 7 through the second rope guide 46, and unfolds and locks the two sets of external high-rigidity inter-plate hinges 7. This achieves the synchronous rotation and unfolding of the external first fixed box plate 21 and the external first moving box plate 31 until the external first fixed box plate 21 and the external second fixed box plate 22 are horizontally aligned and locked by one set of external high-rigidity inter-plate hinges 7, and the external first moving box plate 31 and the external second moving box plate 32 are horizontally aligned and locked by another set of external high-rigidity inter-plate hinges 7. During the movement of the drive rope 43, it maintains a certain tension under the action of the planar spiral spring of the rope tensioning assembly 49, preventing the drive rope 43 from coming out of the rope groove of the first rope guide 45 or the second rope guide 46.

[0026] The second dimension unfolds in two stages: the first external motion box 31 and the second external motion box 32 rotate horizontally around the external central hinge mechanism 1 at a speed of 0°-180°, and the first external motion box 31 and the second external motion box 32 rotate horizontally around the external central hinge mechanism 1 at a speed of 180°-360°.

[0027] like Figure 6 As shown, the specific process of the outer first motion box plate 31 and the outer second motion box plate 32 synchronously rotating horizontally from 0° to 180° around the outer central hinge mechanism 1 is as follows: The motor drive assembly 41 is powered to drive the take-up reel 42, which winds the drive rope 43 onto the take-up reel 42. The drive rope 43 provides driving torque to the external first motion box 31 and the external second motion box 32 through the first rope guide 45. The external first motion box 31 and the external second motion box 32 rotate around the external central hinge mechanism 1, realizing the rotation of the external first motion box 31 and the external second motion box 32 around the external central hinge mechanism 1 from 0° to 180°.

[0028] like Figure 7 As shown, the specific process of the outer first motion box plate 31 and the outer second motion box plate 32 synchronously rotating horizontally 180°-360° around the outer central hinge mechanism 1 is as follows: When the outer first motion box plate 31 and the outer second motion box plate 32 rotate to 180° around the outer central hinge mechanism 1, the drive rope 43 disengages from the first rope guide 45; the drive rope 43 changes the bending angle of the rope through the two third rope guides 47 and continues to provide the driving torque to the outer first motion box plate 31 and the outer second motion box plate 32 until the outer first motion box plate 31 and the outer second motion box plate 32 rotate to 360° around the outer central hinge mechanism 1; at this point, the rope-driven deployment mechanism has deployed the two-dimensional folding fan-shaped solar cell wing into place.

[0029] This invention employs a single deployment mechanism to enable the two-dimensional folding fan-shaped solar cell wing to unfold in two dimensions, thereby achieving lightweight deployment, reducing the complexity of the deployment mechanism, and effectively improving deployment reliability.

[0030] This invention unfolds the entire folding fan-shaped solar cell wing in two stages: the first dimension unfolding involves the outer first fixed panel and the outer first moving panel simultaneously rotating and unfolding in a vertical plane until the outer first fixed panel and the outer second fixed panel are horizontally aligned, and the outer first moving panel and the outer second moving panel are horizontally aligned; the second dimension unfolding involves the outer first fixed panel and the outer second fixed panel remaining fixed, while the outer first moving panel and the outer second moving panel simultaneously rotate 360° horizontally around the outer central hinge mechanism. This allows for a smaller folding length with the same unfolded area, or a larger unfolded area with the same folding length constraint. The present invention divides the second-dimensional unfolding process into two stages: the first external motion box and the second external motion box rotate horizontally around the external central hinge mechanism at 0°-180° and the second external motion box rotate horizontally around the external central hinge mechanism at 180°-360°. The drive unfolding mechanism is designed to switch the drive rope at different angles, which further ensures the reliability of the unfolding.

[0031] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing, characterized in that: It includes a motor drive assembly (41), a take-up reel (42), a drive rope (43), five pulley assemblies (44), two first rope guides (45), two second rope guides (46), two third rope guides (47), two rope limit blocks (48), and a rope tensioning assembly (49). The external second fixed box plate (22) and the external second moving box plate (32) are vertically opposite each other; the external first fixed box plate (21) and the external first moving box plate (31) are vertically opposite each other; the root of the external first fixed box plate (21) and the head of the external second fixed box plate (22) are connected by a set of external high-rigidity inter-plate hinges (7), and the external first fixed box plate (21) is located above the external second fixed box plate (22); the root of the external first moving box plate (31) and the external second moving box plate (32) are vertically opposite each other. The heads of the two external high-rigidity plate-to-plate hinges (7) are connected by another set of external high-rigidity plate-to-plate hinges (7), and the external first moving box plate (31) is located above the external second moving box plate (32); the external first fixed box plate (21) and the external first moving box plate (31) are connected by a set of external central hinge mechanism (1); the first set of external high-rigidity plate-to-plate hinges (7) and the second set of external high-rigidity plate-to-plate hinges (7) are coaxial, and the two sets of external high-rigidity plate-to-plate hinges (7) and the one set of external central hinge mechanism (1) form two rotational degrees of freedom; The motor drive assembly (41) is mounted on the external second fixed box plate (22); the output end of the motor drive assembly (41) is connected to the take-up reel (42); two pulley assemblies (44) are mounted on the external second fixed box plate (22); the other three pulley assemblies (44) are respectively mounted on the external first fixed box plate (21), the external first moving box plate (31), and the external second moving box plate (32); two first rope guides (45) are mounted on the external central hinge mechanism (1); two second rope guides (46) are mounted on two sets of external high-rigidity plate hinges (7); one third rope guide (47) is mounted on the external second fixed box plate (22); the other third rope guide (47) is mounted on the external second moving box plate (32); Two rope limiting blocks (48) are installed on the outer second motion box plate (32); the rope tensioning assembly (49) is installed on the outer second motion box plate (32); one end of the drive rope (43) is connected to the take-up reel (42), and the other end of the drive rope (43) is connected to the rope tensioning assembly (49) after passing through the pulley assembly (44), the first rope guide (45), the second rope guide (46), the third rope guide (47), and the rope limiting block (48).

2. The rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing according to claim 1, characterized in that: In the retracted state, the drive rope (43) is led out from the take-up reel (42) and is tangent to two pulley assemblies (44) installed on one side of the second external fixed box (22) at points A and B respectively, tangent to the pulley assembly (44) installed on one side of the first external fixed box (21) at point C, and tangent to the first rope guide (45) on one side of the first external fixed box (21) at point D; the line AB is set to intersect the line CD at point P; the center Q of the second rope guide (46) is located on the angle bisector of ∠APD; the two ends of the drive rope (43) are tangent to the second rope guide (46) at points M and N, satisfying ∠MQN<180°-∠APD.

3. The rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing according to claim 2, characterized in that: In the retracted state, the drive rope (43) is tangent to the first rope guide (45) on one side of the external first fixed box plate (21) at points D and E, and tangent to the first rope guide (45) on one side of the external first moving box plate (31) at points F and G; the center points L and K of the two first rope guides (45) are located on the two rotation axes of the external central hinge mechanism (1); satisfying ∠DLE=∠FKG=90°.

4. The rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing according to claim 3, characterized in that: The first rope guide (45) has an effective guiding angle of not less than 90° for the drive rope (43); the second rope guide (46) has an effective guiding angle of not less than ∠MQN for the drive rope (43).

5. A rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing according to claim 4, characterized in that: The rope-driven deployment mechanism enables the folding and unfolding of the fan-shaped solar cell wing in two dimensions: the first dimension deployment and the second dimension deployment. The first dimension is expanded as follows: The first external fixed box plate (21) and the first external moving box plate (31) rotate and unfold synchronously in the vertical plane until the first external fixed box plate (21) and the second external fixed box plate (22) are horizontally connected, and the first external moving box plate (31) and the second external moving box plate (32) are horizontally connected. Second dimension expansion: The first external fixed box plate (21) and the second external fixed box plate (22) remain fixed, while the first external moving box plate (31) and the second external moving box plate (32) rotate horizontally 360° around the external central hinge mechanism (1) in sync.

6. A rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing according to claim 5, characterized in that: The process of expanding the first dimension is as follows: The motor drive assembly (41) drives the electric drive take-up reel (42) to rotate, winding the drive rope (43) around the take-up reel (42) until the limit pin on the drive rope (43) contacts the rope limit block (48); the drive rope (43) provides the unfolding torque to the two sets of external high-rigidity plate hinges (7) through the second rope guide (46), and unfolds and locks the two sets of external high-rigidity plate hinges (7); realizes the synchronous rotation and unfolding of the external first fixed box plate (21) and the external first moving box plate (31) until the external first fixed box plate (21) and the external second fixed box plate (22) are horizontally connected and locked by one set of external high-rigidity plate hinges (7), and the external first moving box plate (31) and the external second moving box plate (32) are horizontally connected and locked by another set of external high-rigidity plate hinges (7).

7. A rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing according to claim 6, characterized in that: During the movement of the drive rope (43), it maintains a certain tension under the action of the planar spiral spring of the rope tensioning assembly (49), preventing the drive rope (43) from coming out of the rope groove of the first rope guide (45) or the second rope guide (46).

8. A rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing according to claim 6, characterized in that: The second dimension unfolding process is divided into two stages: the first external motion box plate (31) and the second external motion box plate (32) rotate horizontally by 0°-180° around the external central hinge mechanism (1) and the first external motion box plate (31) and the second external motion box plate (32) rotate horizontally by 180°-360° around the external central hinge mechanism (1).

9. A rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing according to claim 8, characterized in that: The specific process of the outer first motion box plate (31) and the outer second motion box plate (32) synchronously rotating horizontally from 0° to 180° around the outer central hinge mechanism (1) is as follows: The motor drive assembly (41) powers the take-up reel (42) to wind the drive rope (43) onto the take-up reel (42); the drive rope (43) provides driving torque to the outer first motion box (31) and the outer second motion box (32) through the first rope guide (45), and the outer first motion box (31) and the outer second motion box (32) rotate around the outer central hinge mechanism (1) to realize the rotation of the outer first motion box (31) and the outer second motion box (32) around the outer central hinge mechanism (1) from 0° to 180°.

10. A rope-driven deployment mechanism for a two-dimensional folding fan-shaped solar cell wing according to claim 9, characterized in that: The specific process of the outer first motion box plate (31) and the outer second motion box plate (32) rotating horizontally by 180°-360° around the outer central hinge mechanism (1) is as follows: When the outer first motion box plate (31) and the outer second motion box plate (32) rotate to 180° around the outer central hinge mechanism (1), the drive rope (43) disengages from the first rope guide (45); the drive rope (43) changes the bending angle of the rope through the two third rope guides (47) and continues to provide the driving torque of the outer first motion box plate (31) and the outer second motion box plate (32) until the outer first motion box plate (31) and the outer second motion box plate (32) rotate to 360° around the outer central hinge mechanism (1); at this point, the rope-driven deployment mechanism deploys the two-dimensional folding fan-shaped solar cell wing into place.

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