技术领域Technical Field
本发明属于太阳能技术领域，具体涉及一种卷绕式柔性太阳电池阵展收机构及方法。The invention belongs to the technical field of solar energy, and in particular relates to a winding-type flexible solar cell array unfolding and retracting mechanism and method.
背景技术Background Art
空间太阳电池阵是绝大多数航天器在轨运行的唯一能量来源，其将太阳光能转化为电能，是航天器能源系统的关键单机，是决定任务成败和在轨工作寿命的核心要素。目前刚性和半刚性太阳电池阵是空间应用最为广泛的形式，但是其重量和体积会随着航天器载荷所需功率的增加也成正比地快速增长，难以适应未来航天工程的拓展。Space solar arrays are the only energy source for most spacecraft in orbit. They convert sunlight into electricity and are the key unit of the spacecraft energy system. They are the core factor that determines the success or failure of the mission and the life of the spacecraft in orbit. Currently, rigid and semi-rigid solar arrays are the most widely used in space applications, but their weight and volume will increase rapidly in proportion to the increase in the power required by the spacecraft payload, making it difficult to adapt to the expansion of future aerospace projects.
近年来，低轨卫星星座、空间太阳能电站和国际月球科研站计划相继提出并实施，新一代空间太阳电池阵要求具有极高的收纳比和功率比，同时具有可控展收等能力。为了解决上述问题，陆续出现了使用剪叉式机构和弹性桁架式伸展机构等柔性太阳电池阵展开机构构型，但现有设计存在设计复杂、难以模块化拓展和展开后难以收回等问题。In recent years, plans for low-orbit satellite constellations, space solar power stations and international lunar research stations have been proposed and implemented one after another. The new generation of space solar arrays are required to have extremely high storage ratios and power ratios, as well as controllable deployment and retraction capabilities. In order to solve the above problems, flexible solar array deployment mechanism configurations such as scissor-type mechanisms and elastic truss-type extension mechanisms have emerged one after another, but the existing designs have problems such as complex design, difficulty in modular expansion, and difficulty in retracting after deployment.
发明内容Summary of the invention
为了克服现有技术的不足，本发明提供了一种卷绕式柔性太阳电池阵展收机构及方法，包括顶部卷轴装置、展收控制装置、根部横梁装置、压紧释放装置和太阳毯装置；顶部卷轴装置位于展收机构的顶部，为太阳毯装置的展开和收纳提供支持；展收控制装置，对称分布在展收机构两侧；根部横梁装置为电池阵的搭载提供固定位置并预留提供机械接口和电接口；压紧释放装置安装在根部横梁装置中的根部轭架上。本发明展收机构通过卷绕式构型设计提高电池阵质量比功率，通过双稳态复合材料支撑杆提供展开动力，具有轻质可靠、高收纳比、可重复展收和模块化易拓展等优势。In order to overcome the deficiencies of the prior art, the present invention provides a roll-up flexible solar cell array deployment and retraction mechanism and method, including a top reel device, a deployment and retraction control device, a root crossbeam device, a compression and release device, and a solar blanket device; the top reel device is located at the top of the deployment and retraction mechanism to provide support for the deployment and storage of the solar blanket device; the deployment and retraction control device is symmetrically distributed on both sides of the deployment and retraction mechanism; the root crossbeam device provides a fixed position for the battery array and reserves mechanical and electrical interfaces; the compression and release device is installed on the root yoke in the root crossbeam device. The deployment and retraction mechanism of the present invention improves the mass-to-power ratio of the battery array through a roll-up configuration design, and provides deployment power through a bistable composite material support rod, and has the advantages of light weight and reliability, high storage ratio, repeatable deployment and retraction, and modular and easy expansion.
本发明解决其技术问题所采用的技术方案如下：The technical solution adopted by the present invention to solve the technical problem is as follows:
一种卷绕式柔性太阳电池阵展收机构，包括顶部卷轴装置、展收控制装置、根部横梁装置、压紧释放装置和太阳毯装置；A winding type flexible solar cell array deployment and retraction mechanism, comprising a top reel device, a deployment and retraction control device, a root crossbeam device, a compression and release device and a solar blanket device;
所述顶部卷轴装置，位于展收机构的顶部，包括卷轴支架、压紧臂支架、卷轴圆管、芯轴、芯轴轴承和轴承安装座；所述卷轴圆管包括绕毯卷轴和绕杆卷轴；所述芯轴穿过卷轴支架和芯轴轴承贯穿卷轴圆管；所述顶部卷轴装置为太阳毯装置的展开和收纳提供支持；The top reel device is located at the top of the unfolding and stowing mechanism, and includes a reel support, a clamping arm support, a reel tube, a mandrel, a mandrel bearing, and a bearing mounting seat; the reel tube includes a blanket reel and a rod reel; the mandrel passes through the reel support and the mandrel bearing and penetrates the reel tube; the top reel device provides support for the unfolding and stowing of the solar blanket device;
所述展收控制装置，对称分布在展收机构两侧，包括双稳态复合材料支撑杆、稳定杆、径向压紧约束机构和展收控速机构；所述双稳态复合材料支撑杆反向卷绕在绕杆卷轴上，利用绕杆卷轴自身储存的应变能提供展开动力，并在完全展开后提供刚性支撑；所述径向压紧约束机构一端通过臂支架连接轴与压紧臂支架相连，另一端连接稳定杆，约束反向卷绕后的双稳态复合材料支撑杆的径向自然膨胀变形，使其卷绕并实现定向伸展；所述展收控速机构控制电池阵的展开时间，并实现电池阵的展开后收回；The deployment and retraction control device is symmetrically distributed on both sides of the deployment and retraction mechanism, and includes a bistable composite material support rod, a stabilizing rod, a radial clamping constraint mechanism and a deployment and retraction speed control mechanism; the bistable composite material support rod is reversely wound on the winding rod reel, and the strain energy stored in the winding rod reel itself is used to provide deployment power, and provide rigid support after full deployment; one end of the radial clamping constraint mechanism is connected to the clamping arm support through the arm support connecting shaft, and the other end is connected to the stabilizing rod, so as to constrain the radial natural expansion and deformation of the bistable composite material support rod after reverse winding, so that it can be wound and realize directional extension; the deployment and retraction speed control mechanism controls the deployment time of the battery array, and realizes the retraction of the battery array after deployment;
所述根部横梁装置，位于展收机构的根部，与航天器本体相连，包括电机安装座、支撑杆压条、拉簧、拉簧连接架、卷轴限位件和根部轭架，为电池阵的搭载提供固定位置并预留提供机械接口和电接口；The root crossbeam device is located at the root of the deployment mechanism and is connected to the spacecraft body. It includes a motor mounting seat, a support rod pressure strip, a tension spring, a tension spring connecting frame, a reel limiter and a root yoke, which provides a fixed position for the battery array and reserves a mechanical interface and an electrical interface.
所述压紧释放装置，安装在根部横梁装置中的根部轭架上，包括绑绳、热刀模块和热刀模块安装座；电池阵收纳时，绑绳穿过热刀模块安装座的导线槽，并将卷轴圆管绑定在根部横梁装置的卷轴限位件上；电池阵展开时，热刀模块中的电阻通电发热，熔断绑绳后实现机构解锁；The compression release device is installed on the root yoke in the root crossbeam device, and includes a binding rope, a hot knife module and a hot knife module mounting seat; when the battery array is stored, the binding rope passes through the wire groove of the hot knife module mounting seat and binds the reel tube to the reel limiter of the root crossbeam device; when the battery array is unfolded, the resistor in the hot knife module is energized and heated, and the mechanism is unlocked after the binding rope is melted;
所述太阳毯装置，位于由顶部卷轴装置、双稳态复合材料支撑杆和根部横梁装置构成的矩形框架内部，包括传力梁、柔性基板和缓冲泡绵；所述传力梁端通过拉簧和根部横梁装置相连，另一端卷绕在顶部卷轴装置中的绕毯卷轴上；The solar blanket device is located inside a rectangular frame formed by a top reel device, a bistable composite material support rod and a root crossbeam device, and includes a force transmission beam, a flexible substrate and a buffer foam; one end of the force transmission beam is connected to the root crossbeam device through a tension spring, and the other end is wound on a blanket winding reel in the top reel device;
所述顶部卷轴装置中的卷轴支架一端和芯轴相连；所述压紧臂支架角度可变，一端和臂支架连接轴相连；所述卷轴支架和压紧臂支架的另一端均和稳定杆相连；One end of the reel support in the top reel device is connected to the core shaft; the angle of the clamping arm support is variable, and one end is connected to the arm support connecting shaft; the other ends of the reel support and the clamping arm support are both connected to the stabilizing rod;
所述径向压紧约束机构包括臂支架连接轴、簧片压紧组件、预紧组件、稳定杆支架；所述簧片压紧组件包括簧片连接件、压紧滚轮、滚轮限位环、滚轮子母铆钉和压紧簧片；所述簧片连接件按构型划分包括顶部簧片连接件、中部簧片公连接件、中部簧片母连接件、底部簧片公连接件和底部簧片母连接件；所述预紧组件包括预紧支架、预紧支架导向件、预紧滚轮、预紧滚轮连接轴、预紧扭簧和预紧扭簧连接轴；The radial compression constraint mechanism includes an arm support connecting shaft, a spring compression assembly, a pre-tightening assembly, and a stabilizer rod support; the spring compression assembly includes a spring connector, a compression roller, a roller limiting ring, a roller rivet and a compression spring; the spring connector includes a top spring connector, a middle spring male connector, a middle spring female connector, a bottom spring male connector and a bottom spring female connector according to the configuration; the pre-tightening assembly includes a pre-tightening support, a pre-tightening support guide, a pre-tightening roller, a pre-tightening roller connecting shaft, a pre-tightening torsion spring and a pre-tightening torsion spring connecting shaft;
所述滚轮子母铆钉穿过簧片连接件、压紧滚轮和滚轮限位环；所述压紧簧片为Ω型金属弹片，通过平直段预留的通孔连接至前后的簧片连接件上，电池阵在展收过程中，双稳态复合材料支撑杆的卷绕径向厚度发生变化，压紧簧片的圆弧段随着径向厚度变化产生变形，通过压紧滚轮向反向卷绕状态的双稳态复合材料支撑杆提供径向压力；The roller rivet passes through the spring connector, the clamping roller and the roller limit ring; the clamping spring is an Ω-shaped metal spring, which is connected to the front and rear spring connectors through the through hole reserved in the straight section. During the expansion and contraction of the battery array, the winding radial thickness of the bistable composite material support rod changes, and the arc section of the clamping spring is deformed as the radial thickness changes, and the clamping roller provides radial pressure to the bistable composite material support rod in the reverse winding state;
所述预紧组件处于径向压紧约束机构的底部，一端通过预紧支架导向件与簧片压紧组件相连，另一端通过稳定杆支架与稳定杆相连；所述预紧滚轮通过预紧滚轮连接轴和预紧支架相连，相切于双稳态复合材料支撑杆变形过渡区的内侧；所述预紧扭簧连接轴将预紧支架和稳定杆支架相连，预紧扭簧位于预紧扭簧连接轴上，一端嵌入预紧支架的圆孔，另一端相切于稳定杆支架，给预紧滚轮一定的预加载力；The pre-tightening assembly is located at the bottom of the radial compression constraint mechanism, one end of which is connected to the spring leaf compression assembly through the pre-tightening bracket guide, and the other end of which is connected to the stabilizer bar through the stabilizer bar bracket; the pre-tightening roller is connected to the pre-tightening bracket through the pre-tightening roller connecting shaft, and is tangent to the inner side of the deformation transition zone of the bistable composite material support rod; the pre-tightening torsion spring connecting shaft connects the pre-tightening bracket and the stabilizer bar bracket, the pre-tightening torsion spring is located on the pre-tightening torsion spring connecting shaft, one end of which is embedded in the circular hole of the pre-tightening bracket, and the other end is tangent to the stabilizer bar bracket, giving the pre-tightening roller a certain preload force;
所述展收控速机构包括系绳、系绳固定环、控速电机和绳轮；所述系绳固定环安装于稳定杆左右两端，系绳一端和系绳固定环相连，另一端缠绕在绳轮上；所述控速电机安装在根部横梁装置的电机安装座上；所述绳轮通过顶丝固定在控速电机的输出轴上；The retracting and unfolding speed control mechanism comprises a tether, a tether fixing ring, a speed control motor and a rope pulley; the tether fixing ring is installed at the left and right ends of the stabilizing rod, one end of the tether is connected to the tether fixing ring, and the other end is wound around the rope pulley; the speed control motor is installed on the motor mounting seat of the root crossbeam device; the rope pulley is fixed to the output shaft of the speed control motor through a top screw;
所述根部轭架由外侧至内侧分别安装支撑杆调节座、支撑杆压条、拉簧连接架、压紧释放装置和电机安装座；所述拉簧连接架有多个，均布在根部轭架上，拉簧连接架的前端加工有多个小孔，不锈钢拉簧一端穿过小孔，另一端穿过传力梁上的金属夹扣和太阳毯装置相连；所述支撑杆压条安装于双稳态复合材料支撑杆固定端中部，中间压条宽度大于两边压条宽度；螺钉穿过支撑杆压条预留通孔圆孔，将双稳态复合材料支撑杆通过支撑杆调节座固定于根部轭架；The root yoke is respectively installed with a support rod adjustment seat, a support rod pressure strip, a tension spring connecting frame, a clamping release device and a motor mounting seat from the outside to the inside; there are multiple tension spring connecting frames, which are evenly distributed on the root yoke, and the front end of the tension spring connecting frame is processed with multiple small holes, one end of the stainless steel tension spring passes through the small hole, and the other end passes through the metal clip on the force transmission beam and is connected to the solar blanket device; the support rod pressure strip is installed in the middle of the fixed end of the bistable composite material support rod, and the width of the middle pressure strip is greater than the width of the pressure strips on both sides; the screw passes through the reserved through hole circular hole of the support rod pressure strip, and the bistable composite material support rod is fixed to the root yoke through the support rod adjustment seat;
优选地，所述绕杆卷轴表面铣削出平面凹槽并打孔，用于固定双稳态复合材料支撑杆的伸展端。Preferably, a planar groove is milled and a hole is punched on the surface of the winding shaft to fix the extended end of the bistable composite material support rod.
优选地，所述双稳态复合材料支撑杆构型为C形截面薄壁狭缝管，由多层超薄织物或单向复合材料纤维增强预浸料经特定角度铺层固化制得，利用其反向卷绕状态储存的弹性应变能提供电池阵展开动力，无需额外的驱动机构。Preferably, the bistable composite support rod is configured as a C-shaped thin-walled slit tube, which is made of multiple layers of ultra-thin fabric or unidirectional composite fiber-reinforced prepreg that are laid and cured at a specific angle. The elastic strain energy stored in the reverse winding state is used to provide power for the battery array to unfold, without the need for an additional driving mechanism.
优选地，所述根部轭架采用矩形截面铝质型材或矩形蜂窝夹层板。Preferably, the root yoke is made of a rectangular cross-section aluminum profile or a rectangular honeycomb sandwich panel.
优选地，所述拉簧连接架有4个，均布在根部轭架上，拉簧连接架前端加工有4个小孔。Preferably, there are four tension spring connecting frames, which are evenly distributed on the root yoke, and four small holes are processed at the front end of the tension spring connecting frames.
优选地，所述传力梁由上下2根铝条组成，铝条表面均布圆孔，金属夹扣穿过圆孔将两根铝条固定，穿过圆孔的拉簧将张拉力载荷均匀施加至柔性基板。Preferably, the force transmission beam is composed of two upper and lower aluminum bars, the surfaces of which are evenly distributed with round holes, metal clips pass through the round holes to fix the two aluminum bars, and tension springs passing through the round holes evenly apply the tensile load to the flexible substrate.
优选地，所述缓冲泡绵为长条状，采用聚酰亚胺耐高温材料，在柔性基板的背面等间距贴附，以提供减震缓冲效果。Preferably, the buffer foam is in the shape of long strips and is made of polyimide high temperature resistant material, and is attached to the back of the flexible substrate at equal intervals to provide a shock absorbing and buffering effect.
一种卷绕式柔性太阳电池阵展收机构的展开和收回方法，具体步骤如下：A method for unfolding and retracting a winding flexible solar cell array unfolding and retracting mechanism, the specific steps are as follows:
步骤1：柔性太阳电池阵到达太空中预定位置，星载计算机或地面控制站发出解锁指令；Step 1: The flexible solar array reaches the predetermined position in space, and the onboard computer or ground control station issues an unlocking command;
步骤2：接收到解锁指令后，柔性太阳电池阵展收机构的电控系统工作，压紧释放装置动，热刀模块通电烧断绑绳，释放卷轴圆管；Step 2: After receiving the unlocking command, the electronic control system of the flexible solar array deployment mechanism works, the compression release device moves, the hot knife module is powered on to burn off the binding rope, and the reel tube is released;
步骤3：星载电源为控速电机供电，控速电机开始工作带动绳轮正向旋转，系绳牵引稳定杆匀速释放，双稳态复合材料支撑杆依靠自身弹性应变能和径向压紧约束机构的约束向指定方向运动，带动太阳毯装置同步展开，拉簧通过传力梁对太阳毯装置施加均匀的张紧载荷；Step 3: The onboard power supply supplies power to the speed control motor, which starts to work and drives the rope wheel to rotate forward. The tether pulls the stabilizing rod to release at a uniform speed. The bistable composite support rod moves in the specified direction by relying on its own elastic strain energy and the constraint of the radial compression constraint mechanism, driving the solar blanket device to unfold synchronously. The tension spring applies a uniform tension load to the solar blanket device through the force transmission beam.
步骤4：太阳毯装置完全展开后，控速电机停止供电，依靠2根双稳态复合材料支撑杆提供结构刚性；Step 4: After the solar blanket device is fully deployed, the speed control motor stops supplying power, and the two bistable composite material support rods provide structural rigidity;
步骤5：当收回时，控速电机恢复通电带动绳轮反向旋转，通过系绳22牵引稳定杆回收，最后实现柔性太阳电池阵的展开后收回。Step 5: When retracting, the speed control motor is powered on again to drive the rope wheel to rotate in the opposite direction, and the stabilizing bar is pulled back through the tether 22, and finally the flexible solar cell array is deployed and retracted.
本发明的有益效果如下：The beneficial effects of the present invention are as follows:
本发明提供一种卷绕式柔性太阳电池阵展收机构，该展收机构通过卷绕式构型设计提高了电池阵质量比功率，通过双稳态复合材料支撑杆反向卷绕储存的应变能提供展开动力，无需额外的驱动机构设计，通过弹性簧片组件随动形变实现支撑杆展收过程的径向压紧约束，通过由系绳和电机等组成的展收控速机构实现电池阵部署速度控制和慢速收回，本发明的电池阵展收机构部署刚性较好，具有轻质可靠、高收纳比、低复杂度、可重复展收和模块化易拓展等综合优势。The present invention provides a winding-type flexible solar cell array deployment and retraction mechanism, which improves the mass-to-power ratio of the cell array through a winding configuration design, provides deployment power through strain energy stored by reverse winding of a bistable composite material support rod, does not require additional drive mechanism design, realizes radial compression constraint during the deployment and retraction process of the support rod through the dynamic deformation of an elastic spring assembly, and realizes deployment speed control and slow retraction of the cell array through a deployment and retraction speed control mechanism composed of a tether and a motor. The battery array deployment and retraction mechanism of the present invention has good deployment rigidity and has the comprehensive advantages of light weight and reliability, high storage ratio, low complexity, repeatable deployment and retraction, and modular and easy expansion.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是本发明卷绕式柔性太阳电池阵展收机构展开状态示意图；FIG1 is a schematic diagram of a deployment state of a roll-up flexible solar cell array deployment and retraction mechanism of the present invention;
图2是本发明卷绕式柔性太阳电池阵展收机构收纳状态示意图；FIG2 is a schematic diagram of a storage state of the deployment and retraction mechanism of the winding type flexible solar cell array of the present invention;
图3是本发明顶部卷轴装置示意图；FIG3 is a schematic diagram of a top reel device of the present invention;
图4是本发明径向压紧约束机构示意图；FIG4 is a schematic diagram of a radial compression constraint mechanism of the present invention;
图5是本发明根部横梁装置和太阳毯装置示意图。FIG. 5 is a schematic diagram of the root beam device and the solar blanket device of the present invention.
附图标记说明：Description of reference numerals:
Ⅰ-顶部卷轴装置，Ⅱ-展收控制装置、Ⅲ-根部横梁装置、Ⅳ-压紧释放装置，Ⅴ-太阳毯装置；1-卷轴支架，2-压紧臂支架，3-卷轴圆管，3-1-绕毯卷轴，3-2-绕杆卷轴，4-芯轴，5-芯轴轴承，6-轴承安装座，7-双稳态复合材料支撑杆，8-稳定杆，9-臂支架连接轴，10-簧片连接件，10-1顶部簧片连接件，10-2中部簧片公连接件，10-3中部簧片母连接件，10-4底部簧片公连接件，10-5底部簧片母连接件，11-压紧滚轮，12-滚轮限位环，13-滚轮子母铆钉，14-压紧簧片，15-预紧支架，16-预紧支架导向件，17-预紧滚轮，18-预紧滚轮连接轴，19-预紧扭簧，20-预紧扭簧连接轴，21-稳定杆支架，22-系绳，23-系绳固定环，24-控速电机，25-绳轮，26-电机安装座，27-支撑杆压条，28-支撑杆调节，29-拉簧，30-拉簧连接架，31-根部轭架，32-绑绳，33-热刀模块，34-热刀模块安装座，35-传力梁，36-柔性基板，37-缓冲泡绵。Ⅰ-top reel device, Ⅱ-extension and retraction control device, Ⅲ-root crossbeam device, Ⅳ-compression release device, Ⅴ-solar blanket device; 1-reel bracket, 2-compression arm bracket, 3-reel round tube, 3-1-carpet reel, 3-2-rod reel, 4-mandrel, 5-mandrel bearing, 6-bearing mounting seat, 7-bistable composite material support rod, 8-stabilizing rod, 9-arm bracket connecting shaft, 10-spring connector, 10-1 top spring connector, 10-2 middle spring male connector, 10-3 middle spring female connector, 10-4 bottom spring male connector, 10-5 bottom spring female connector, 11-compression roller, 12- Roller limiting ring, 13-roller mother-and-child rivets, 14-compression spring sheet, 15-preload bracket, 16-preload bracket guide, 17-preload roller, 18-preload roller connecting shaft, 19-preload torsion spring, 20-preload torsion spring connecting shaft, 21-stabilizer bar bracket, 22-tether, 23-tether fixing ring, 24-speed control motor, 25-pulley, 26-motor mounting seat, 27-support rod pressure strip, 28-support rod adjustment, 29-tension spring, 30-tension spring connecting frame, 31-root yoke, 32-binding rope, 33-hot knife module, 34-hot knife module mounting seat, 35-force transmission beam, 36-flexible substrate, 37-buffer foam.
具体实施方式DETAILED DESCRIPTION
下面结合附图和实施例对本发明进一步说明。The present invention is further described below in conjunction with the accompanying drawings and embodiments.
本发明提供一种卷绕式柔性太阳电池阵展收机构，该展收机构通过卷绕式构型设计提高电池阵质量比功率，通过双稳态复合材料支撑杆提供展开动力，具有轻质可靠、高收纳比、可重复展收和模块化易拓展等优势。The present invention provides a roll-up flexible solar cell array deployment and retraction mechanism, which improves the mass-to-power ratio of the cell array through a roll-up configuration design, provides deployment power through a bistable composite material support rod, and has the advantages of light weight and reliability, high storage ratio, repeatable deployment and retraction, and modular and easy expansion.
本发明提供一种卷绕式柔性太阳电池阵展收机构，包括：The present invention provides a winding type flexible solar cell array unfolding and retracting mechanism, comprising:
顶部卷轴装置，位于展收机构的顶部，包括卷轴支架、压紧臂支架、卷轴圆管、芯轴、芯轴轴承和轴承安装座，卷轴圆管包括绕毯卷轴和绕杆卷轴，芯轴穿过卷轴支架和芯轴轴承贯穿卷轴圆管；The top reel device is located at the top of the unfolding and retracting mechanism, and includes a reel support, a clamping arm support, a reel tube, a mandrel, a mandrel bearing and a bearing mounting seat. The reel tube includes a carpet reel and a rod reel. The mandrel passes through the reel support and the mandrel bearing and penetrates the reel tube.
展收控制装置，对称分布在展收机构两侧，包括双稳态复合材料支撑杆、稳定杆、径向压紧约束机构、展收控速机构。双稳态复合材料支撑杆反向卷绕在绕杆卷轴上，利用结构自身储存的应变能提供展开动力，并在完全展开后提供刚性支撑，径向压紧约束机构一端通过臂支架连接轴与压紧臂支架相连，一端相连于稳定杆上，约束反向卷绕后的双稳态复合材料支撑杆的径向自然膨胀变形，使其紧密卷绕并实现定向伸展，展收控速机构控制电池阵的展开时间，并实现电池阵的展开后慢速收回。The deployment and retraction control device is symmetrically distributed on both sides of the deployment and retraction mechanism, including a bistable composite material support rod, a stabilizing rod, a radial clamping constraint mechanism, and a deployment and retraction speed control mechanism. The bistable composite material support rod is reversely wound on the winding rod reel, using the strain energy stored in the structure itself to provide deployment power and provide rigid support after full deployment. One end of the radial clamping constraint mechanism is connected to the clamping arm bracket through the arm bracket connecting shaft, and the other end is connected to the stabilizing rod, which constrains the radial natural expansion and deformation of the bistable composite material support rod after reverse winding, so that it is tightly wound and achieves directional extension. The deployment and retraction speed control mechanism controls the deployment time of the battery array and realizes the slow retraction of the battery array after deployment.
根部横梁装置，位于展收机构的根部，与航天器本体相连，包括电机安装座、支撑杆压条、拉簧、拉簧连接架、卷轴限位件和根部轭架，为柔性太阳电池阵的搭载提供固定位置并预留提供机械接口和电接口；The root crossbeam device is located at the root of the deployment mechanism and is connected to the spacecraft body. It includes a motor mounting seat, a support rod pressure strip, a tension spring, a tension spring connecting frame, a reel stopper and a root yoke, which provides a fixed position for the flexible solar cell array and reserves mechanical and electrical interfaces.
压紧释放装置，安装在根部横梁装置中的根部轭架上，包括绑绳、热刀模块、热刀模块安装座。电池阵收纳时，绑绳穿过热刀模块安装座的导线槽，并将卷轴圆管绑定在根部横梁装置的卷轴限位件上。电池阵展开时，热刀模块中的电阻通电发热，熔断绑绳后实现机构解锁；The compression release device is installed on the root yoke in the root crossbeam device, including a binding rope, a hot knife module, and a hot knife module mounting seat. When the battery array is stored, the binding rope passes through the wire groove of the hot knife module mounting seat and binds the reel tube to the reel limiter of the root crossbeam device. When the battery array is unfolded, the resistor in the hot knife module is energized and heated, and the mechanism is unlocked after the binding rope is melted;
太阳毯装置，位于由顶部卷轴装置、双稳态复合材料支撑杆和根部横梁装置构成的矩形框架内部，包括传力梁、柔性基板和缓冲泡绵。传力梁端通过拉簧和根部横梁装置相连，另一端卷绕在顶部卷轴装置中的绕毯卷轴上；The solar blanket device is located inside a rectangular frame formed by a top reel device, a bistable composite material support rod and a root crossbeam device, and includes a force transmission beam, a flexible substrate and a buffer foam. One end of the force transmission beam is connected to the root crossbeam device through a tension spring, and the other end is wound on the blanket winding reel in the top reel device;
顶部卷轴装置中的卷轴支架一端和芯轴相连，压紧臂支架角度可变，一端和臂支架连接轴相连，两者的另一端均和稳定杆相连。绕杆卷轴表面铣削出平面凹槽并打孔，以固定双稳态复合材料支撑杆的伸展端。One end of the reel support in the top reel device is connected to the core shaft, and the angle of the clamping arm support is variable, and one end is connected to the arm support connecting shaft, and the other ends of both are connected to the stabilizing rod. A flat groove is milled and a hole is punched on the surface of the winding rod reel to fix the extended end of the bistable composite material support rod.
展收控制装置中的双稳态复合材料支撑杆构型为C形截面薄壁狭缝管，由多层超薄织物或单向复合材料纤维增强预浸料经特定角度铺层固化制得，利用其反向卷绕状态储存的弹性应变能可提供电池阵展开动力，无需额外的驱动机构。The bistable composite support rod in the deployment and retraction control device is configured as a C-shaped thin-walled slit tube. It is made of multiple layers of ultra-thin fabric or unidirectional composite fiber-reinforced prepreg that are laid and cured at a specific angle. The elastic strain energy stored in its reverse winding state can provide power for the battery array to be deployed without the need for an additional driving mechanism.
展收控制装置中的径向压紧约束机构包括臂支架连接轴、簧片压紧组件、预紧组件、稳定杆支架，簧片压紧组件包括簧片连接件、压紧滚轮、滚轮限位环、滚轮子母铆钉、压紧簧片，簧片连接件按构型划分包括顶部簧片连接件、中部簧片公连接件、中部簧片母连接件、底部簧片公连接件、底部簧片母连接件，预紧组件包括预紧支架、预紧支架导向件、预紧滚轮、预紧滚轮连接轴、预紧扭簧、预紧扭簧连接轴。The radial compression constraint mechanism in the expansion and retraction control device includes an arm bracket connecting shaft, a spring clamping assembly, a pre-tightening assembly, and a stabilizer bar bracket. The spring clamping assembly includes a spring connector, a clamping roller, a roller limiting ring, a roller rivet, and a compression spring. The spring connector is divided into a top spring connector, a middle spring male connector, a middle spring female connector, a bottom spring male connector, and a bottom spring female connector according to the configuration. The pre-tightening assembly includes a pre-tightening bracket, a pre-tightening bracket guide, a pre-tightening roller, a pre-tightening roller connecting shaft, a pre-tightening torsion spring, and a pre-tightening torsion spring connecting shaft.
簧片压紧组件中的滚轮子母铆钉穿过簧片连接件、压紧滚轮和滚轮限位环，压紧簧片为型金属弹片，通过平直段预留的通孔连接至前后的簧片连接件上，电池阵在展收过程中，双稳态复合材料支撑杆的卷绕径向厚度发生变化，压紧簧片的圆弧段随着径向厚度变化产生变形，通过压紧滚轮向反向卷绕状态的双稳态复合材料支撑杆提供径向压力。The roller rivets in the spring clamping assembly pass through the spring connector, the clamping roller and the roller limit ring. The clamping spring is a metal spring, which is connected to the front and rear spring connectors through the through holes reserved in the straight section. During the expansion and contraction of the battery array, the radial thickness of the winding of the bistable composite material support rod changes, and the arc segment of the clamping spring is deformed as the radial thickness changes, and radial pressure is provided to the bistable composite material support rod in the reverse winding state through the clamping roller.
预紧组件处于径向压紧约束机构的底部，一端通过预紧支架导向件与簧片压紧组件相连，一端通过稳定杆支架与稳定杆相连，预紧滚轮通过预紧滚轮连接轴和预紧支架相连，相切于双稳态复合材料支撑杆变形过渡区的内侧，预紧扭簧连接轴将预紧支架和稳定杆支架相连，预紧扭簧位于预紧扭簧连接轴上，一端嵌入预紧支架的圆孔，另一端相切于稳定杆支架，给预紧滚轮一定的预加载力。The preload assembly is at the bottom of the radial compression constraint mechanism, one end of which is connected to the spring leaf compression assembly through a preload bracket guide, and the other end is connected to the stabilizer bar through a stabilizer bar bracket. The preload roller is connected to the preload bracket through a preload roller connecting shaft, which is tangent to the inner side of the deformation transition zone of the bistable composite material support rod. The preload torsion spring connecting shaft connects the preload bracket and the stabilizer bar bracket. The preload torsion spring is located on the preload torsion spring connecting shaft, one end of which is embedded in the circular hole of the preload bracket, and the other end is tangent to the stabilizer bar bracket, giving the preload roller a certain preload force.
展收控制装置中的展收控速机构包括系绳、系绳固定环、控速电机、绳轮。系绳固定环安装于稳定杆左右两端，系绳一端和系绳固定环相连，另一端缠绕在绳轮上；控速电机安装在根部横梁装置的电机安装座上，绳轮通过顶丝固定在控速电机的输出轴上。The extension and retraction speed control mechanism in the extension and retraction control device includes a tether, a tether fixing ring, a speed control motor, and a rope pulley. The tether fixing ring is installed at the left and right ends of the stabilizer bar, one end of the tether is connected to the tether fixing ring, and the other end is wound on the rope pulley; the speed control motor is installed on the motor mounting seat of the root crossbeam device, and the rope pulley is fixed to the output shaft of the speed control motor through a top screw.
根部横梁装置中的根部轭架采用矩形截面铝质型材，从根部轭架由外侧至内侧分别安装支撑杆调节座、支撑杆压条、拉簧连接架、压紧释放装置和电机安装座，4个拉簧连接架均布在根部轭架上，前端加工有4个小孔，不锈钢拉簧一端穿过小孔，另一端穿过传力梁上的金属夹扣和太阳毯装置相连；支撑杆压条安装于双稳态复合材料支撑杆固定端中部，中间压条宽度较宽，两边压条宽度较窄。螺钉穿过支撑杆压条预留通孔圆孔，将双稳态复合材料支撑杆通过支撑杆调节座固定于根部轭架。The root yoke in the root crossbeam device is made of rectangular cross-section aluminum profile. The support rod adjustment seat, support rod pressure strip, tension spring connection frame, clamping release device and motor mounting seat are installed from the outside to the inside of the root yoke. The four tension spring connection frames are evenly distributed on the root yoke. Four small holes are processed on the front end. One end of the stainless steel tension spring passes through the small hole, and the other end passes through the metal clip on the force transmission beam and is connected to the solar blanket device; the support rod pressure strip is installed in the middle of the fixed end of the bistable composite material support rod. The width of the middle pressure strip is wider, and the width of the pressure strips on both sides is narrower. The screw passes through the reserved through hole of the support rod pressure strip, and the bistable composite material support rod is fixed to the root yoke through the support rod adjustment seat.
太阳毯装置中的传力梁由上下2根铝条组成，铝条表面均布圆孔，金属夹扣穿过圆孔将两根铝条固定，穿过上述圆孔的拉簧将张拉力载荷均匀施加至柔性基板；缓冲泡绵为长条状，在柔性基板的背面等间距贴附，以提供减震缓冲效果。The force transmission beam in the solar blanket device is composed of two upper and lower aluminum bars with evenly distributed circular holes on the surface of the aluminum bars. Metal clips pass through the circular holes to fix the two aluminum bars. The tension springs passing through the circular holes evenly apply the tensile load to the flexible substrate. The buffer foam is in the shape of long strips and is attached to the back of the flexible substrate at equal intervals to provide shock-absorbing and buffering effects.
实施例：Example:
如图1和图2所示，本实施例提供一种卷绕式柔性太阳柔性太阳电池阵展收机构，包括顶部卷轴装置I、展收控制装置Ⅱ、根部横梁装置Ⅲ、压紧释放装置Ⅳ和太阳毯装置Ⅴ。其中，顶部卷轴装置I位于展收机构的顶部，为太阳毯装置Ⅴ中的柔性基板36和展收控制装置Ⅱ中的双稳态复合材料支撑杆7的展开和收纳提供支持；展收控制装置Ⅱ对称分布在展收机构两侧，包括双稳态复合材料支撑杆7、稳定杆8、径向压紧约束机构和展收控速机构；根部横梁装置Ⅲ位于展收机构的根部，与航天器本体相连，为柔性太阳电池阵的搭载提供固定位置并预留提供机械接口和电接口；压紧释放装置Ⅳ安装在根部横梁装置Ⅲ中的根部轭架31上，通过热刀模块33通电发热熔断绑绳32实现柔性太阳电池阵的解锁；太阳毯装置Ⅴ位于由顶部卷轴装置I、双稳态复合材料支撑杆7和根部横梁装置Ⅲ构成的矩形框架内部，一端通过拉簧29和根部轭架31相连，一端通过螺钉固定在绕毯卷轴3-1上。As shown in FIG. 1 and FIG. 2 , this embodiment provides a roll-up flexible solar cell array deployment and retraction mechanism, including a top reel device I, a deployment and retraction control device II, a root beam device III, a compression and release device IV and a solar blanket device V. Among them, the top reel device I is located at the top of the unfolding and retracting mechanism, providing support for the unfolding and retracting of the flexible substrate 36 in the solar blanket device V and the bistable composite material support rod 7 in the unfolding and retracting control device II; the unfolding and retracting control device II is symmetrically distributed on both sides of the unfolding and retracting mechanism, including the bistable composite material support rod 7, the stabilizing rod 8, the radial clamping constraint mechanism and the unfolding and retracting speed control mechanism; the root crossbeam device III is located at the root of the unfolding and retracting mechanism, connected to the spacecraft body, providing a fixed position for the flexible solar cell array and reserving mechanical and electrical interfaces; the clamping and releasing device IV is installed on the root yoke 31 in the root crossbeam device III, and the flexible solar cell array is unlocked by energizing the hot knife module 33 to heat and fuse the binding rope 32; the solar blanket device V is located inside the rectangular frame composed of the top reel device I, the bistable composite material support rod 7 and the root crossbeam device III, one end of which is connected to the root yoke 31 through a tension spring 29, and the other end is fixed to the blanket reel 3-1 through a screw.
本实施例通过双稳态复合材料支撑杆7反向卷绕在绕杆卷轴3-2上储存的弹性应变能提供柔性太阳电池阵的展开动力，并在完全展开后提供支撑，通过径向压紧约束机构中的压紧簧片14的弹性形变实现对反向卷绕的双稳态复合材料支撑杆7的径向压紧约束，通过展收控速机构中的系绳22和控速电机24实现柔性太阳电池阵的展开后慢速收回；In this embodiment, the elastic strain energy stored in the reversely wound bistable composite material support rod 7 on the winding rod reel 3-2 provides the power for unfolding the flexible solar cell array, and provides support after being fully unfolded. The radial compression constraint of the reversely wound bistable composite material support rod 7 is realized by the elastic deformation of the compression spring 14 in the radial compression constraint mechanism. The tether 22 and the speed control motor 24 in the unfolding and retracting speed control mechanism realize the slow retraction of the flexible solar cell array after unfolding.
如图3所示，顶部卷轴装置I包括卷轴支架1、压紧臂支架2、卷轴圆管3、芯轴4、芯轴轴承5和轴承安装座6，卷轴圆管3包括中间绕毯卷轴3-1和两端的绕杆卷轴3-2，芯轴4穿过卷轴支架1和芯轴轴承5贯穿卷轴圆管3；卷轴支架1一端和芯轴4相连，压紧臂支架2一端和臂支架连接轴9相连，两者的另一端均和稳定杆8相连，且压紧臂支架2在卷轴支架1的内部伴随柔性太阳电池阵的展开实现角度变化。绕杆卷轴3-2表面铣削出平面凹槽并打孔，避免在卷绕过程中出现局部凸起和卡顿，使用螺钉和硅胶垫片固定双稳态复合材料支撑杆7的伸展端。As shown in Figure 3, the top reel device 1 includes a reel support 1, a clamping arm support 2, a reel tube 3, a mandrel 4, a mandrel bearing 5 and a bearing mounting seat 6, the reel tube 3 includes a middle carpet reel 3-1 and a rod reel 3-2 at both ends, the mandrel 4 passes through the reel support 1 and the mandrel bearing 5 passes through the reel tube 3; one end of the reel support 1 is connected to the mandrel 4, one end of the clamping arm support 2 is connected to the arm support connecting shaft 9, and the other ends of both are connected to the stabilizing rod 8, and the clamping arm support 2 is inside the reel support 1 to achieve angle changes with the expansion of the flexible solar cell array. The surface of the rod reel 3-2 is milled with a flat groove and punched to avoid local protrusions and jams during the winding process, and the extended end of the bistable composite material support rod 7 is fixed with screws and silicone gaskets.
双稳态复合材料支撑杆7构型为C形截面薄壁狭缝管，截面开口角度为300°至340°，由多层织物或单向复合材料预浸料经特定角度铺层固化制得，正向卷绕状态是其稳态之一，利用其反向卷绕状态储存的弹性应变能可提供柔性太阳电池阵展开动力，即杆件的横向和纵向曲率反向，无需额外的驱动机构，且复合材料具有相对较低的热膨胀系数，可以大大减轻空间热效应。The bistable composite support rod 7 is configured as a C-shaped thin-walled slit tube with a cross-sectional opening angle of 300° to 340°. It is made of multiple layers of fabric or unidirectional composite prepreg that are laid and cured at a specific angle. The forward winding state is one of its stable states. The elastic strain energy stored in the reverse winding state can provide the power for the flexible solar cell array to unfold, that is, the lateral and longitudinal curvatures of the rod are reversed, and no additional driving mechanism is required. The composite material has a relatively low thermal expansion coefficient, which can greatly reduce the spatial thermal effect.
如图3和图4所示，径向压紧约束机构包括臂支架连接轴9、簧片压紧组件、预紧组件、稳定杆支架21，用于约束反向卷绕后的双稳态复合材料支撑杆7的径向自然膨胀变形，使其紧密卷绕并实现定向伸展。簧片压紧组件包括簧片连接件10、压紧滚轮11、滚轮限位环12、滚轮子母铆钉13、压紧簧片14，簧片连接件10按构型划分包括顶部簧片连接件10-1、中部簧片公连接件10-2、中部簧片母连接件10-3、底部簧片公连接件10-4、底部簧片母连接件10-5，预紧组件包括预紧支架15、预紧支架导向件16、预紧滚轮17、预紧滚轮连接轴18、预紧扭簧19、预紧扭簧连接轴20。As shown in Figures 3 and 4, the radial compression constraint mechanism includes an arm support connecting shaft 9, a spring clamping assembly, a pre-tightening assembly, and a stabilizer rod bracket 21, which are used to constrain the radial natural expansion deformation of the bistable composite material support rod 7 after reverse winding, so that it can be tightly wound and achieve directional extension. The spring clamping assembly includes a spring connector 10, a clamping roller 11, a roller limiting ring 12, a roller rivet 13, and a compression spring 14. The spring connector 10 includes a top spring connector 10-1, a middle spring male connector 10-2, a middle spring female connector 10-3, a bottom spring male connector 10-4, and a bottom spring female connector 10-5 according to the configuration. The pre-tightening assembly includes a pre-tightening bracket 15, a pre-tightening bracket guide 16, a pre-tightening roller 17, a pre-tightening roller connecting shaft 18, a pre-tightening torsion spring 19, and a pre-tightening torsion spring connecting shaft 20.
簧片压紧组件中的滚轮子母铆钉13穿过簧片连接件10、压紧滚轮11和滚轮限位环12，位于簧片压紧组件中部和底部的簧片连接件10均由公连接件和母连接件嵌套组合而成，母连接件的耳片数量比公连接件多1个；压紧簧片14为型金属弹片，通过平直段预留的通孔连接至前后的簧片连接件10上，柔性太阳电池阵在展收过程中，双稳态复合材料支撑杆7的卷绕径向厚度发生变化，压紧簧片14的圆弧段随着径向厚度变化产生弹性变形，通过压紧滚轮11向反向卷绕状态的双稳态复合材料支撑杆7内侧提供径向压力，压紧滚轮11的使用可降低接触面积和展开过程摩擦力。The roller rivets 13 in the spring clamping assembly pass through the spring connector 10, the clamping roller 11 and the roller limit ring 12. The spring connectors 10 located in the middle and bottom of the spring clamping assembly are composed of a nested combination of a male connector and a female connector. The number of ears of the female connector is one more than that of the male connector. The clamping spring 14 is a metal spring, which is connected to the front and rear spring connectors 10 through the through holes reserved in the straight section. During the expansion and contraction of the flexible solar cell array, the radial thickness of the winding of the bistable composite material support rod 7 changes, and the arc segment of the clamping spring 14 produces elastic deformation with the change of radial thickness, and provides radial pressure to the inner side of the bistable composite material support rod 7 in the reverse winding state through the clamping roller 11. The use of the clamping roller 11 can reduce the contact area and friction during the expansion process.
预紧组件处于径向压紧约束机构的底部，一端通过预紧支架导向件16与簧片压紧组件相连，一端通过稳定杆支架21与稳定杆8相连，预紧滚轮17通过预紧滚轮连接轴18和预紧支架15相连，预紧滚轮17相切于双稳态复合材料支撑杆7变形过渡区的内侧，预紧扭簧连接轴20将预紧支架15和稳定杆支架21相连，预紧扭簧19位于预紧扭簧连接轴20上，一端嵌入预紧支架15的通槽，另一端相切于稳定杆支架21，给预紧滚轮17一定的预加载力。The preload assembly is at the bottom of the radial clamping constraint mechanism, one end of which is connected to the spring clamping assembly through the preload bracket guide 16, and the other end is connected to the stabilizer bar 8 through the stabilizer bar bracket 21. The preload roller 17 is connected to the preload bracket 15 through the preload roller connecting shaft 18. The preload roller 17 is tangent to the inner side of the deformation transition zone of the bistable composite material support rod 7. The preload torsion spring connecting shaft 20 connects the preload bracket 15 and the stabilizer bar bracket 21. The preload torsion spring 19 is located on the preload torsion spring connecting shaft 20, one end of which is embedded in the through groove of the preload bracket 15, and the other end is tangent to the stabilizer bar bracket 21, giving the preload roller 17 a certain preload force.
如图3和图5，展收控制装置Ⅱ中的展收控速机构包括系绳22、系绳固定环23、控速电机24、绳轮25。系绳固定环23安装于稳定杆8左右两端，系绳22一端和系绳固定环23固连，另一端缠绕在绳轮25上；控速电机24安装在根部横梁装置Ⅲ的电机安装座26上，2个控速电机24由1台控制器进行控制以实现转速同步，绳轮25通过顶丝固定在控速电机24的输出轴上。特别地，通过调节电机正反旋转来张紧系绳22，系绳22拉紧稳定杆，进而完成柔性太阳电池阵的展开速度控制和收回进程。As shown in Figures 3 and 5, the deployment and retraction speed control mechanism in the deployment and retraction control device II includes a tether 22, a tether fixing ring 23, a speed control motor 24, and a rope pulley 25. The tether fixing ring 23 is installed at the left and right ends of the stabilizing bar 8, one end of the tether 22 is fixedly connected to the tether fixing ring 23, and the other end is wound on the rope pulley 25; the speed control motor 24 is installed on the motor mounting seat 26 of the root crossbeam device III, and the two speed control motors 24 are controlled by a controller to achieve speed synchronization, and the rope pulley 25 is fixed on the output shaft of the speed control motor 24 through a top screw. In particular, the tether 22 is tensioned by adjusting the forward and reverse rotation of the motor, and the tether 22 tightens the stabilizing bar, thereby completing the deployment speed control and retraction process of the flexible solar cell array.
在本发明另一个无收回需求的实施例中，可以舍去系绳22和控速电机24，只在卷轴圆管3安装芯轴轴承5的两端安装速度阻尼器，控制展开部署速度以降低展开冲击和柔性振动。In another embodiment of the present invention without the need for retrieval, the tether 22 and the speed control motor 24 can be omitted, and only speed dampers are installed at both ends of the core shaft bearing 5 of the reel tube 3 to control the deployment speed to reduce the deployment impact and flexible vibration.
如图5所示，根部轭架31采用矩形截面铝质型材，由外侧至内侧分别安装支撑杆调节座28、支撑杆压条27、拉簧连接架30、压紧释放装置Ⅳ和电机安装座26，支撑杆压条27安装于双稳态复合材料支撑杆7固定端中部，中间压条宽度较宽，两边压条宽度较窄。使用螺钉穿过支撑杆压条27预留通孔，将双稳态复合材料支撑杆7通过支撑杆调节座28固定于根部轭架31；4个拉簧连接架30均布在根部轭架31上，前端加工有4个小孔，以进行不同张紧程度的调节，不锈钢拉簧29一端穿过小孔，另一端穿过传力梁35上的金属夹扣和太阳毯装置Ⅴ相连。As shown in Fig. 5, the root yoke 31 is made of rectangular cross-section aluminum profile, and the support rod adjustment seat 28, support rod pressure strip 27, tension spring connection frame 30, clamping release device IV and motor mounting seat 26 are installed from the outside to the inside. The support rod pressure strip 27 is installed in the middle of the fixed end of the bistable composite material support rod 7. The width of the middle pressure strip is wider, and the width of the pressure strips on both sides is narrower. Use screws to pass through the reserved through holes of the support rod pressure strip 27, and fix the bistable composite material support rod 7 to the root yoke 31 through the support rod adjustment seat 28; 4 tension spring connection frames 30 are evenly distributed on the root yoke 31, and 4 small holes are processed at the front end to adjust different tension levels. One end of the stainless steel tension spring 29 passes through the small hole, and the other end passes through the metal clip on the force transmission beam 35 and is connected to the solar blanket device V.
进一步地，压紧释放装置Ⅳ包括绑绳32、热刀模块33和热刀模块安装座34。柔性太阳电池阵收纳时，绑绳32穿过热刀模块安装座34的导线槽，将卷轴圆管3绑定；柔性太阳电池阵展开时，热刀模块33中的电阻通电发热，熔断绑绳32后实现机构解锁。Furthermore, the compression release device IV includes a binding rope 32, a hot knife module 33 and a hot knife module mounting seat 34. When the flexible solar cell array is stored, the binding rope 32 passes through the wire groove of the hot knife module mounting seat 34 to bind the reel tube 3; when the flexible solar cell array is unfolded, the resistor in the hot knife module 33 is energized and heated, and the binding rope 32 is melted to realize the mechanism unlocking.
进一步地，传力梁35由上下2根铝条组成，铝条表面横向均布2排8个圆孔，金属夹扣穿过圆孔将两根铝条固定，穿过上述圆孔的4根拉簧29将张拉力载荷均匀施加至柔性基板36；柔性基板36由聚酰亚胺薄膜和纤维织物通过模压复合工艺制得；缓冲泡绵37为长条状，在柔性基板36的背面等间距贴附，以提供减震缓冲效果，并调整太阳毯装置Ⅴ的相对厚度和双稳态复合材料支撑杆7的相对厚度保持一致，使得在卷绕单位圈数时伸展或收回相同的长度，柔性基板36的正面用以贴装太阳能电池片。Furthermore, the force transmission beam 35 is composed of two upper and lower aluminum bars, and two rows of eight circular holes are evenly distributed on the surface of the aluminum bars in the horizontal direction. Metal clips pass through the circular holes to fix the two aluminum bars, and four tension springs 29 passing through the above circular holes evenly apply the tensile load to the flexible substrate 36; the flexible substrate 36 is made of polyimide film and fiber fabric through a molding composite process; the buffer foam 37 is in the shape of long strips and is attached to the back of the flexible substrate 36 at equal intervals to provide a shock-absorbing and buffering effect, and the relative thickness of the solar blanket device V and the relative thickness of the bistable composite material support rod 7 are adjusted to be consistent, so that the same length is extended or retracted when winding a unit number of turns, and the front side of the flexible substrate 36 is used to mount solar cells.
本实施例中的卷绕式柔性太阳电池阵展收机构工作过程如下：The working process of the roll-up flexible solar cell array deployment mechanism in this embodiment is as follows:
Step1：柔性太阳电池阵到达太空中预定位置，星载计算机或地面控制站发出解锁指令；Step 1: The flexible solar array reaches the predetermined position in space, and the onboard computer or ground control station issues an unlocking command;
Step2：接收到解锁指令后，柔性太阳电池阵展收机构的电控系统工作，压紧释放装置Ⅳ启动，热刀模块33通电烧断绑绳32，释放卷轴圆管3；Step 2: After receiving the unlocking command, the electric control system of the flexible solar cell array unfolding and retracting mechanism works, the pressing and releasing device IV is started, the hot knife module 33 is energized to burn the binding rope 32, and the reel tube 3 is released;
Step3：星载电源为控速电机24供电，电机24开始工作带动绳轮25正向旋转，系绳22牵引稳定杆8匀速释放，双稳态复合材料支撑杆7依靠自身弹性应变能和径向压紧约束机构的约束向指定方向运动，带动太阳毯装置Ⅴ同步展开,拉簧29通过传力梁35对太阳毯装置Ⅴ施加均匀的张紧载荷；Step 3: The satellite power supply supplies power to the speed control motor 24, and the motor 24 starts to work to drive the rope wheel 25 to rotate forward, and the tether 22 pulls the stabilizing rod 8 to release at a uniform speed. The bistable composite material support rod 7 moves in the specified direction by relying on its own elastic strain energy and the constraint of the radial compression constraint mechanism, driving the solar blanket device V to unfold synchronously, and the tension spring 29 applies a uniform tension load to the solar blanket device V through the force transmission beam 35;
Step4：太阳毯装置Ⅴ完全展开后，控速电机24停止供电，依靠2根双稳态复合材料支撑杆7提供结构刚性；Step 4: After the solar blanket device V is fully unfolded, the speed control motor 24 stops supplying power, and the two bistable composite material support rods 7 provide structural rigidity;
Step5：必要条件下，控速电机24恢复通电带动绳轮25反向旋转，通过系绳22牵引稳定杆8慢速回收，最后实现柔性太阳电池阵的展开后收回。Step 5: Under necessary conditions, the speed control motor 24 is powered on again to drive the rope wheel 25 to rotate in the opposite direction, and the stabilizing bar 8 is slowly recovered by pulling the tether 22, and finally the flexible solar cell array is deployed and retracted.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410856671.1ACN118637437A (en) | 2024-06-28 | 2024-06-28 | A winding flexible solar cell array deployment and retraction mechanism and method |
| Application Number | Priority Date | Filing Date | Title |
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| CN202410856671.1ACN118637437A (en) | 2024-06-28 | 2024-06-28 | A winding flexible solar cell array deployment and retraction mechanism and method |
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| CN119018370A (en)* | 2024-10-28 | 2024-11-26 | 中国科学院微小卫星创新研究院 | Satellite reel-type flexible solar wing deployment and retraction device |
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| CN119018370A (en)* | 2024-10-28 | 2024-11-26 | 中国科学院微小卫星创新研究院 | Satellite reel-type flexible solar wing deployment and retraction device |
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