A solar light focusing and light path control system

Abstract

The present invention provides a sunlight convergence and optical path control system, comprising: an aircraft; a pointing arm, the pointing arm comprising a first end of the pointing arm and a second end of the pointing arm, the pointing arm having multiple degrees of freedom; a control mechanism, the control mechanism comprising a reflector assembly, a secondary mirror assembly and a swing mirror assembly, the secondary mirror assembly comprising n support rods, n being a natural number ≥1; the reflector assembly comprising a plurality of reflector mirror pairs, the number of the reflector mirror pairs being greater than n; the aircraft is connected to the control mechanism via the pointing arm, the aircraft is connected to the first end of the pointing arm, and the control mechanism is connected to the second end of the pointing arm.

Description

Technical Field

[0001] The invention belongs to the technical field of a super-large unfolding sunlight convergence and light path control system, and in particular relates to a sunlight convergence and light path control system. Background Art

[0002] Traditional space attack and defense technology is dedicated to the research of surface damage to space payloads and interference with communication functions. Space laser weapon technology is limited by the power and range of the laser and cannot damage the core components of space payloads. In addition, with the development of space technology, the anti-interference ability of space payload control systems and communication systems has been enhanced, reducing the reliability of communication interference technology. Since space is not affected by the atmospheric environment, the average energy of sunlight can reach 1367W / m 2 . By using an ultra-large aperture focusing structure to gather sunlight and control the light beam, high-energy light beams can be irradiated onto the space payload, which can cause the surface temperature of the space payload to rise and the detector to overheat, thereby achieving thermal interference and thermal destruction of the space payload.

[0003] Space ultra-large aperture focusing and optical path control technology has the advantages of low power consumption, long range and high reliability. However, under the current launch conditions, the size envelope of the ultra-large aperture focusing structure increases the launch cost and difficulty, and reduces the reliability of the launch. In addition, the traditional optical system is limited to the two-dimensional rotation of the oscillating mirror surface for optical path control switching, and it is impossible to illuminate any target in space in real time to achieve the purpose of flexible control of the optical path. Therefore, the current launch conditions and optical path control technology limit the development of space attack and defense technology based on focusing sunlight. Summary of the invention

[0004] In order to overcome the defects in the above-mentioned prior art, the present invention proposes a sunlight convergence and optical path control system, comprising: an aircraft; a pointing arm, the pointing arm comprising a first end of the pointing arm and a second end of the pointing arm, and the pointing arm has multiple degrees of freedom; a control mechanism, the control mechanism comprising a reflector assembly, a secondary mirror assembly and a swing mirror assembly, the swing mirror assembly, the reflector assembly and the secondary mirror assembly are arranged in sequence from bottom to top, the swing mirror assembly is connected to the reflector assembly, the secondary mirror assembly comprises n support rods, n is a natural number ≥1, and the secondary mirror assembly is connected to the reflector assembly through the support rods; the reflector assembly comprises a plurality of reflector mirror pairs, and the number of the reflector mirror pairs is greater than n; the aircraft is connected to the control mechanism through the pointing arm, the aircraft is connected to the first end of the pointing arm, and the control mechanism is connected to the second end of the pointing arm. The control mechanism can realize real-time alignment with the sun when the aircraft is in any posture. In the launch state, the reflector is in a folded configuration to meet the requirements of the carrying size envelope. After entering orbit, the reflector assembly unfolds the first-stage sub-mirror and the second-stage sub-mirror through a two-stage unfolding mechanism to form a large-scale solar reflector. The swing mirror assembly is connected to the optical path control system base through a multi-degree-of-freedom robotic arm, which can transmit parallel light beams to any specified position in space.

[0005] Preferably, the sunlight concentration and light path control system disclosed in the present invention further includes an adapter, and the aircraft is connected to the first end of the pointing arm via the adapter.

[0006] Preferably, the control mechanism includes a reflector assembly, a secondary mirror assembly and a swing mirror assembly, wherein the swing mirror assembly, the reflector assembly and the secondary mirror assembly are arranged in sequence from bottom to top, the swing mirror assembly is fixedly connected to the reflector assembly, the secondary mirror assembly includes n secondary mirror support rods, n is a natural number ≥1, and the secondary mirror assembly is connected to the reflector assembly through the secondary mirror support rods. Preferably, n is a natural number ≥3; preferably, n is 3. The secondary mirror assembly also includes a secondary mirror, which may be a polygon or a circle or other shape. One end of each secondary mirror support rod is connected to the secondary mirror, and the other end is connected to the reflector assembly. And the secondary mirror support rods are connected to the secondary mirrors at intervals, preferably, the n secondary mirror support rods are evenly spaced and connected to the secondary mirrors. Preferably, the length of the shortest secondary mirror support rod is 80% to 100% of the length of the longest secondary mirror support rod, and preferably, the length of each secondary mirror support rod is equal.

[0007] Preferably, the oscillating mirror assembly includes a oscillating mirror base, a first oscillating mirror, a degree of freedom mechanical arm and a second oscillating mirror, the first oscillating mirror is mounted on the oscillating mirror base and the first oscillating mirror and the oscillating mirror base are mounted at 30°-60° in the normal direction, the degree of freedom mechanical arm includes a head end and a tail end, the head end of the degree of freedom mechanical arm is connected to the first oscillating mirror, the tail end of the degree of freedom mechanical arm is connected to the second oscillating mirror, the degree of freedom mechanical arm and the second oscillating mirror can rotate around the oscillating mirror base with the first oscillating mirror, and the second oscillating mirror can switch any posture relative to the first oscillating mirror. Further preferably, the first oscillating mirror is mounted on the oscillating mirror base and the first oscillating mirror and the oscillating mirror base are mounted at 45° in the normal direction. Preferably, the degree of freedom mechanical arm is an m-degree of freedom mechanical arm, m is one of the natural numbers between 6 and 9; further preferably, m is 7 or 8; further preferably, m is 7. When m is 7, the degree of freedom mechanical arm is a 7-degree of freedom mechanical arm.

[0008] Preferably, in the sunlight focusing and light path control system, the reflector assembly is in an emitting shape or a retracted shape, or in a shape between the expanded emitting shape and the retracted shape.

[0009] Preferably, the reflector assembly comprises: a reflector assembly mounting seat, a first-level sub-mirror driving assembly, a second-level sub-mirror driving assembly, and a reflector mirror pair, wherein the reflector mirror pair comprises a first-level sub-mirror and a second-level sub-mirror; the first-level sub-mirror driving assembly is mounted on the reflector assembly mounting seat, the first-level sub-mirror is mounted on the top of the reflector assembly mounting seat, and the first-level sub-mirror driving assembly is used to drive the first-level sub-mirror to move; the second-level sub-mirror is connected to the first-level sub-mirror via the second-level sub-mirror driving assembly, thereby driving the second-level sub-mirror to move.

[0010] In the present application, the term "emerging state" means that the reflector mirror pairs of the reflector assembly are in an unfolded state.

[0011] In the present application, the term "reflecting mirror pair" refers to one or more pairs of reflecting mirror pairs, wherein a pair of reflecting mirror pairs includes a primary sub-mirror and a secondary sub-mirror.

[0012] In the present application, the term "folded state" refers to a state in which the reflector mirror pair is folded close to the reflector assembly mounting seat.

[0013] Preferably, the number of the reflecting mirror pairs is ≥4 pairs, further preferably, the number of the reflecting mirror pairs is ≥6 pairs, and even further preferably, the number of the reflecting mirror pairs is 6 pairs.

[0014] Preferably, the number of the secondary mirror support rods is ≤ the number of the reflector mirror pairs; further preferably, the number of the secondary mirror support rods is half the number of the reflector mirror pairs; even further preferably, the number of the secondary mirror support rods n=3, the number of the reflector mirror pairs is 6, and the secondary mirror support rods are spaced and abut against the reflector mirror pairs; even further preferably, the angles between the secondary mirror support rods are equal, and one end of each secondary mirror support rod is connected between two reflector secondary mirror pairs, and the other end is connected to the secondary mirror.

[0015] Preferably, in each pair of reflecting mirrors, the first-level sub-mirror and the second-level sub-mirror have the same thickness and are made of the same material, and are 180° apart from each other.

[0016] Preferably, in each pair of reflecting mirrors, the first-level sub-mirrors are located on the same side of the second-level sub-mirrors.

[0017] Preferably, in each pair of reflector mirrors, the surface area of ​​the secondary sub-mirror is smaller than the surface area of ​​the primary sub-mirror. Further preferably, the area of ​​the upper surface of the secondary sub-mirror is 15% to 40% of the area of ​​the upper surface of the primary sub-mirror, and further preferably, the area of ​​the upper surface of the secondary sub-mirror is 25% to 35% of the area of ​​the upper surface of the primary sub-mirror.

[0018] Preferably, the upper surfaces of all the reflector mirror pairs are in the same plane, and the angle between the axis of the reflector assembly mounting base along the longitudinal direction and the above-mentioned plane is 0-100°. When the angle is 0°, the reflector assembly is in a fully retracted state; when the angle is ≥90°, the reflector assembly is in a fully emitting state by default, and the reflector mirror pairs are fully extended; when the angle increases from 0° to 90°, the reflector assembly gradually extends; when the angle decreases from 100° or 90° to 0°, the reflector assembly gradually retracts.

[0019] Preferably, the cross section of the reflector assembly mounting seat is a polygon. Further preferably, the number of sides of the polygon is equal to the number of the reflector mirror pairs.

[0020] Preferably, the number of the first-stage sub-mirror drive assemblies is 4-8 groups, and further preferably, the number of the first-stage sub-mirror drive assemblies is 5-7 groups. Preferably, the first-stage sub-mirror drive assemblies are mounted on the reflector assembly mounting seat in a circularly symmetrical manner. Further preferably, the number of the first-stage sub-mirror drive assemblies is equal to the number of the reflector mirror pairs, that is, the number of the first-stage sub-mirror drive assemblies is equal to the number of the first-stage sub-mirrors or the second-stage sub-mirrors. Further preferably, the number of the first-stage sub-mirror drive assemblies is 6 groups.

[0021] Preferably, the reflector assembly further comprises a reflector bracket, and the reflector bracket is used to connect the reflector mirror pair and the first-stage sub-mirror driving assembly. Further preferably, the number of the reflector brackets is ≤ the number of the reflector mirror pairs; and further preferably, the number of the reflector brackets is equal to the number of the reflector mirror pairs, and each reflector mirror pair is connected to the first-stage sub-mirror driving assembly via a reflector bracket.

[0022] Preferably, the reflector assembly further comprises a first-stage sub-mirror mounting flange and a first-stage sub-mirror hinge, the first-stage sub-mirror mounting flange is mounted on the top of the reflector assembly mounting seat, and the first-stage sub-mirror is connected to the first-stage sub-mirror mounting flange via the first-stage sub-mirror hinge.

[0023] Preferably, the first-stage sub-mirror driving assembly includes a first motor, a lead screw and a connecting rod, one end of the connecting rod is connected to the lead screw nut of the lead screw through a hinge, and the other end of the connecting rod is connected to the first-stage sub-mirror through a hinge, the first motor is used to drive the lead screw to rotate, and the lead screw nut of the lead screw can make a linear motion along the lead screw, thereby driving the first-stage sub-mirror to move.

[0024] Preferably, the secondary sub-mirror driving assembly includes a second motor and a gear. The secondary driving assembly is connected to the primary sub-mirror via a hinge. The second motor is used to drive the gear, thereby driving the secondary sub-mirror to rotate.

[0025] The present invention can achieve the following technical effects:

[0026] The present invention relates to an ultra-large deployable sunlight focusing and light path control system, which connects an aircraft and a sunlight focusing and light path control mechanism through a pointing arm, so that the sunlight focusing and light path control mechanism can be aligned with the sun in real time under any posture of the aircraft, ensuring that sunlight is vertically incident on a reflector, thereby minimizing the loss of sunlight energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a sunlight concentration and light path control system according to an embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of the structure of a control mechanism of an embodiment of the present invention;

[0029] Figure 3 is a schematic structural diagram of a swing mirror assembly according to an embodiment of the present invention;

[0030] Figure 4 is a structural schematic diagram of a reflector assembly in an unfolded state according to an embodiment of the present invention;

[0031] Figure 5is a structural schematic diagram of a reflector assembly in a folded state according to an embodiment of the present invention;

[0032] Figure 6 Schematic diagram of the structure of a secondary mirror assembly according to an embodiment of the present invention.

[0033] Reference numerals:

[0034] Sunlight convergence and optical path control system 100, aircraft 1, pointing arm 2, control mechanism 3, swing mirror assembly 31, reflector assembly 32, secondary mirror assembly 33, secondary mirror 331, secondary mirror support frame 332, swing mirror base 311, first swing mirror 312, degree of freedom mechanical arm 313, second swing mirror 314, reflector assembly mounting seat 321, first-stage sub-mirror driving assembly 322, second-stage sub-mirror driving assembly 323, first-stage sub-mirror 324, second-stage sub-mirror 325, first-stage sub-mirror mounting flange 326, first-stage sub-mirror hinge 327, reflector bracket 328. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation of the present invention.

[0036] The object of the present invention is to provide a description in this specification in which the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. are intended to mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0037] According to the present invention Figure 1 The figure shows a schematic diagram of the structure of a sunlight convergence and light path control system 100 according to an embodiment of the present invention, wherein the sunlight convergence and light path control system 100 comprises: an aircraft 1; a pointing arm 2, wherein the pointing arm 2 comprises a first end of the pointing arm and a second end of the pointing arm, and the pointing arm 2 has multiple degrees of freedom; a control mechanism 3; the aircraft 1 is connected to the control mechanism 3 via the pointing arm 2, the aircraft 1 is connected to the first end of the pointing arm 2, and the control mechanism 3 is connected to the second end of the pointing arm 2, and the control mechanism 3 can realize real-time alignment with the sun when the aircraft is in any posture.

[0038] In a specific embodiment, the control mechanism 3 of the present invention is connected to the pointing arm 3 through an adapter, and the aircraft 1 is also connected to the pointing arm 2 through an adapter.

[0039] In a specific embodiment, Figure 2 The figure is a schematic diagram of the structure of a control mechanism 3 of an embodiment of the present invention, wherein the control mechanism 3 comprises: a swing mirror assembly 31, a reflector assembly 32 and a secondary mirror assembly 33, wherein the swing mirror assembly 31, the reflector assembly 32 and the secondary mirror assembly 33 are distributed from bottom to top, the mounting seat of the swing mirror assembly 31 is fixed to the reflector assembly mounting seat 321, and the secondary mirror assembly 33 adopts a three-point support method, specifically, the secondary mirror assembly 33 is connected to the flange on the reflector assembly 32 through three support rods.

[0040] In a specific embodiment, Figure 3 The structure diagram of the swing mirror assembly 31 of an embodiment of the present invention is shown, and the swing mirror assembly 31 includes a swing mirror base 311, a first swing mirror 312, a degree of freedom mechanical arm 313 and a second swing mirror 314. The first swing mirror 312 is installed at 45 degrees to the normal direction of the swing mirror base 311, and a driving assembly is installed between the first swing mirror 312 and the swing mirror base 311 to enable it to achieve ±180 degrees rotation relative to the swing mirror base 311. The degree of freedom mechanical arm 313 connects the first swing mirror 312 and the second swing mirror 314 through a small adapter. The degree of freedom mechanical arm 313 and the second swing mirror 314 can rotate around the swing mirror base 311 with the first swing mirror 312, and the second swing mirror 314 is placed at the end of the degree of freedom mechanical arm 313 to switch the posture relative to the first swing mirror 312 at will.

[0041] In a specific embodiment, if Figure 4 FIG. 3 is a schematic structural diagram of a reflector assembly 32 in an unfolded state according to an embodiment of the present invention. Figure 5 FIG. 3 is a schematic structural diagram of a reflector assembly 32 in a folded state according to an embodiment of the present invention. Figure 4-5As shown, the reflector assembly 32 specifically includes a reflector assembly mounting seat 321, a first-stage sub-mirror driving assembly 322, a second-stage sub-mirror driving assembly 323, a first-stage sub-mirror 324, a second-stage sub-mirror 325, a first-stage sub-mirror mounting flange 326 and a first-stage sub-mirror hinge 327. The first-stage sub-mirror driving assembly 322 is 6 sets in number and is symmetrically mounted on the reflector assembly mounting seat 321. The first-stage sub-mirror mounting flange 326 is mounted on the top of the reflector assembly mounting seat 321. The first-stage sub-mirror is connected to the first-stage sub-mirror mounting flange 326 through the first-stage sub-mirror hinge 327. The first-stage sub-mirror driving assembly 322 adopts a "motor + lead screw + connecting rod" structure. One end of the connecting rod is connected to the lead screw nut through a hinge, and the other end is connected to the first-stage sub-mirror 324 through a hinge. The motor drives the lead screw to rotate, and the lead screw nut will make a linear motion along the lead screw, thereby pushing the first-stage sub-mirror to unfold. The secondary sub-mirror 325 is connected to the primary sub-mirror 324 via the secondary sub-mirror driving assembly 323. The secondary sub-mirror driving assembly 323 adopts a "motor + gear transmission + hinge" structure, and is connected to the primary sub-mirror 324 via a hinge movable hinge. The motor drives the gear to rotate the secondary sub-mirror 325.

[0042] In a specific embodiment of the present invention, a super-large unfolding sunlight convergence and optical path control system 100 is disclosed, and its system components are divided into an aircraft 1, a pointing arm 2, and a sunlight convergence and optical path control mechanism 3. One end (root) of the pointing arm 2 is connected to the aircraft 1 through an adapter. The pointing arm 2 has the characteristics of multiple degrees of freedom and large scale, and can meet the requirements of vertical incident sunlight on the reflector and a large range of adjustment of the sunlight convergence and optical path control system 100. The sunlight convergence and optical path control system 100 is connected to the end of the pointing arm 2 through an adapter, and is composed of a reflector assembly 32, a secondary mirror assembly 33, a first swing mirror 3122 and a second swing mirror 314. The reflector assembly 3 is composed of six first-level sub-mirrors 324 and six second-level sub-mirrors 325. In the launch state, the reflector is in a folded configuration to meet the carrier size envelope requirements. After entering orbit, the reflector assembly unfolds the first-level sub-mirror and the second-level sub-mirror through a two-stage unfolding mechanism to form a large-scale solar reflector. The secondary mirror assembly is fixed to the secondary mirror support mechanism, and converges the reflector light into a parallel light beam and transmits it to the first swing mirror 312. The first swing mirror 312 transmits the parallel light beam to the second swing mirror 314. The second swing mirror 314 is connected to the base of the optical path control system through a multi-degree-of-freedom robotic arm, and can transmit the parallel light beam to any specified position in space.

[0043] Compared with the prior art, the present invention has the following advantages:

[0044] (1) The present invention is an ultra-large deployable sunlight focusing and light path control system, wherein the pointing arm 2 connects the aircraft 1 and the sunlight focusing and light path control mechanism 3, and can realize that the sunlight focusing and light path control mechanism 3 is aligned with the sun in real time under any posture of the aircraft 1, thereby ensuring that the sunlight is incident vertically on the reflector, thereby minimizing the loss of sunlight energy.

[0045] (2) The sunlight focusing and light path control system of the present invention adopts a reflective afocal beam reduction optical system. Compared with a transmissive optical system, the system has less solar energy loss, which makes the reflector aperture required to obtain a specified value of sunlight energy density smaller. At the same time, the reflective afocal beam reduction optical system focuses sunlight into parallel sunlight spots of a certain aperture and transmits them to any distant target in space.

[0046] (3) The reflector of the present invention adopts a two-stage sub-mirror unfolding structure, which ensures that the envelope size of the folded configuration of the reflector is the smallest in the launch state, and after entering orbit and unfolding, the effective size of the mirror surface contacting the sunlight is the largest.

[0047] (4) The swing mirror assembly of the present invention uses a free-degree-of-freedom mechanical arm to switch the posture between the second swing mirror and the first swing mirror, ensuring that the parallel light beam is refracted to any space target under different orbital conditions.

[0048] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0049] The above specific implementations of the present invention do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A solar light concentration and light path control system, characterized in that: include A pointing arm, the pointing arm comprising a first end of the pointing arm and a second end of the pointing arm, the pointing arm having multiple degrees of freedom; A control mechanism, the control mechanism comprises a reflector assembly, a secondary mirror assembly and a swing mirror assembly, the swing mirror assembly, the reflector assembly and the secondary mirror assembly are arranged in sequence from bottom to top, the swing mirror assembly is connected to the reflector assembly, the secondary mirror assembly comprises n support rods, n is a natural number ≥1, the secondary mirror assembly is connected to the reflector assembly through the support rods; the reflector assembly comprises a plurality of reflector mirror pairs, the number of the reflector mirror pairs is greater than n; The pointing arm connects the control mechanism to the aircraft, the aircraft is connected to the first end of the pointing arm, and the control mechanism is connected to the second end of the pointing arm; The control mechanism can realize real-time alignment with the sun when the aircraft is in any posture.

2. The solar light concentration and light path control system according to claim 1, characterized in that: An adapter is also included, and the aircraft is connected to the first end of the pointing arm through the adapter.

3. The solar light concentration and light path control system according to claim 2, characterized in that: The oscillating mirror assembly includes a oscillating mirror base, a first oscillating mirror, a degree of freedom mechanical arm and a second oscillating mirror, wherein the first oscillating mirror is mounted on the oscillating mirror base and the first oscillating mirror is mounted at an angle of 30°-60° with the oscillating mirror base in the normal direction, the degree of freedom mechanical arm includes a head end and an end end, the head end of the degree of freedom mechanical arm is connected to the first oscillating mirror, the end of the degree of freedom mechanical arm is connected to the second oscillating mirror, the degree of freedom mechanical arm and the second oscillating mirror can rotate around the oscillating mirror base with the first oscillating mirror, and the second oscillating mirror can switch to any posture relative to the first oscillating mirror.

4. The sunlight focusing and light path control system according to claim 1, characterized in that: The reflector assembly is in an emitting shape or a retracted shape, or in a shape between the expanded emitting shape and the retracted shape.

5. The solar light concentration and light path control system according to claim 1, characterized in that: The reflector assembly also includes: a reflector assembly mounting seat, a first-level sub-mirror driving assembly, and a second-level sub-mirror driving assembly. The reflector mirror pair includes a first-level sub-mirror and a second-level sub-mirror; the first-level sub-mirror driving assembly is installed on the reflector assembly mounting seat, and the first-level sub-mirror is installed on the top of the reflector assembly mounting seat. The first-level sub-mirror driving assembly is used to drive the first-level sub-mirror to move; the second-level sub-mirror is connected to the first-level sub-mirror through the second-level sub-mirror driving assembly, thereby driving the second-level sub-mirror to move.

6. The sunlight focusing and light path control system according to claim 5, characterized in that: The number of the reflecting mirror pairs is 4-8 pairs, and each pair of the reflecting mirror pairs includes a first-level sub-mirror and a second-level sub-mirror; in each of the reflecting mirror pairs, the upper surface of the first-level sub-mirror and the upper surface of the second-level sub-mirror are on the same plane; in each of the reflecting mirror pairs, the first-level sub-mirrors are located on the same side of the second-level sub-mirror.

7. The sunlight focusing and light path control system according to claim 6, characterized in that: The number of the first-stage sub-mirror driving assemblies is 4-8 groups, and the first-stage sub-mirror driving assemblies are installed on the reflector assembly mounting seat in a circularly symmetrical manner.

8. The sunlight focusing and light path control system according to claim 6, characterized in that: The reflector assembly also includes a first-stage sub-mirror mounting flange and a first-stage sub-mirror hinge. The first-stage sub-mirror mounting flange is installed on the top of the reflector assembly mounting seat, and the first-stage sub-mirror is connected to the first-stage sub-mirror mounting flange through the first-stage sub-mirror hinge.

9. The sunlight focusing and light path control system according to claim 6, characterized in that: The first-stage sub-mirror driving assembly includes a first motor, a lead screw and a connecting rod, one end of the connecting rod is connected to the lead screw nut of the lead screw through a hinge, and the other end of the connecting rod is connected to the first-stage sub-mirror through a hinge. The first motor is used to drive the lead screw to rotate, and the lead screw nut of the lead screw can make a linear motion along the lead screw, thereby driving the first-stage sub-mirror to move.

10. The sunlight concentration and light path control system according to claim 6, characterized in that: The secondary sub-mirror driving assembly includes a second motor and a gear. The secondary sub-mirror driving assembly is connected to the primary sub-mirror via a hinge. The second motor is used to drive the gear to drive the secondary sub-mirror to rotate.

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